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-rwxr-xr-xdebian/additions/debian-start42
-rwxr-xr-xdebian/additions/debian-start.inc.sh79
-rwxr-xr-xdebian/additions/echo_stderr2
-rw-r--r--debian/additions/innotop/changelog.innotop441
-rw-r--r--debian/additions/innotop/innotop12254
-rw-r--r--debian/additions/innotop/innotop.12200
-rw-r--r--debian/additions/mariadb.cnf23
-rw-r--r--debian/additions/mariadb.conf.d/50-client.cnf25
-rw-r--r--debian/additions/mariadb.conf.d/50-mysql-clients.cnf24
-rw-r--r--debian/additions/mariadb.conf.d/50-mysqld_safe.cnf30
-rw-r--r--debian/additions/mariadb.conf.d/50-server.cnf134
-rw-r--r--debian/additions/mariadb.conf.d/60-galera.cnf19
-rwxr-xr-xdebian/additions/mysqlreport1626
-rw-r--r--debian/additions/mysqlreport.1180
-rw-r--r--debian/additions/source_mariadb-10.1.py54
15 files changed, 17133 insertions, 0 deletions
diff --git a/debian/additions/debian-start b/debian/additions/debian-start
new file mode 100755
index 0000000..40c248f
--- /dev/null
+++ b/debian/additions/debian-start
@@ -0,0 +1,42 @@
+#!/bin/bash
+#
+# This script is executed by "/etc/init.d/mysql" on every (re)start.
+#
+# Changes to this file will be preserved when updating the Debian package.
+#
+# NOTE: This file is read only by the traditional SysV init script, not systemd.
+#
+
+source /usr/share/mysql/debian-start.inc.sh
+
+if [ -f /etc/default/mysql ]; then
+ . /etc/default/mysql
+fi
+
+MYSQL="/usr/bin/mysql --defaults-file=/etc/mysql/debian.cnf"
+MYADMIN="/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf"
+MYUPGRADE="/usr/bin/mysql_upgrade --defaults-extra-file=/etc/mysql/debian.cnf"
+MYCHECK="/usr/bin/mysqlcheck --defaults-file=/etc/mysql/debian.cnf"
+MYCHECK_SUBJECT="WARNING: mysqlcheck has found corrupt tables"
+MYCHECK_PARAMS="--all-databases --fast --silent"
+MYCHECK_RCPT="${MYCHECK_RCPT:-root}"
+
+## Checking for corrupt, not cleanly closed (only for MyISAM and Aria engines) and upgrade needing tables.
+
+# The following commands should be run when the server is up but in background
+# where they do not block the server start and in one shell instance so that
+# they run sequentially. They are supposed not to echo anything to stdout.
+# If you want to disable the check for crashed tables comment
+# "check_for_crashed_tables" out.
+# (There may be no output to stdout inside the background process!)
+
+# Need to ignore SIGHUP, as otherwise a SIGHUP can sometimes abort the upgrade
+# process in the middle.
+trap "" SIGHUP
+(
+ upgrade_system_tables_if_necessary;
+ check_root_accounts;
+ check_for_crashed_tables;
+) >&2 &
+
+exit 0
diff --git a/debian/additions/debian-start.inc.sh b/debian/additions/debian-start.inc.sh
new file mode 100755
index 0000000..33cd892
--- /dev/null
+++ b/debian/additions/debian-start.inc.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+#
+# This file is included by /etc/mysql/debian-start
+#
+
+## Check MyISAM and Aria unclosed tables.
+# - Requires the server to be up.
+# - Is supposed to run silently in background.
+function check_for_crashed_tables() {
+ set -e
+ set -u
+
+ # But do it in the background to not stall the boot process.
+ logger -p daemon.info -i -t$0 "Triggering myisam-recover for all MyISAM tables and aria-recover for all Aria tables"
+
+ # Checking for $? is unreliable so the size of the output is checked.
+ # Some table handlers like HEAP do not support CHECK TABLE.
+ tempfile=`tempfile`
+
+ # We have to use xargs in this case, because a for loop barfs on the
+ # spaces in the thing to be looped over.
+
+ # If a crashed table is encountered, the "mysql" command will return with a status different from 0
+ set +e
+
+ LC_ALL=C $MYSQL --skip-column-names --batch -e '
+ select concat('\''select count(*) into @discard from `'\'',
+ TABLE_SCHEMA, '\''`.`'\'', TABLE_NAME, '\''`'\'')
+ from information_schema.TABLES where TABLE_SCHEMA<>'\''INFORMATION_SCHEMA'\'' and TABLE_SCHEMA<>'\''PERFORMANCE_SCHEMA'\'' and ( ENGINE='\''MyISAM'\'' or ENGINE='\''Aria'\'' )' | \
+ xargs -i $MYSQL --skip-column-names --silent --batch \
+ --force -e "{}" &>$tempfile
+ set -e
+
+ if [ -s "$tempfile" ]; then
+ (
+ /bin/echo -e "\n" \
+ "Improperly closed tables are also reported if clients are accessing\n" \
+ "the tables *now*. A list of current connections is below.\n";
+ $MYADMIN processlist status
+ ) >> $tempfile
+ # Check for presence as a dependency on mailx would require an MTA.
+ if [ -x /usr/bin/mailx ]; then
+ mailx -e -s"$MYCHECK_SUBJECT" $MYCHECK_RCPT < $tempfile
+ fi
+ (echo "$MYCHECK_SUBJECT"; cat $tempfile) | logger -p daemon.warn -i -t$0
+ fi
+ rm $tempfile
+}
+
+## Check for tables needing an upgrade.
+# - Requires the server to be up.
+# - Is supposed to run silently in background.
+function upgrade_system_tables_if_necessary() {
+ set -e
+ set -u
+
+ logger -p daemon.info -i -t$0 "Upgrading MySQL tables if necessary."
+
+ # Filter all "duplicate column", "duplicate key" and "unknown column"
+ # errors as the script is designed to be idempotent.
+ LC_ALL=C $MYUPGRADE \
+ 2>&1 \
+ | egrep -v '^(1|@had|ERROR (1054|1060|1061))' \
+ | logger -p daemon.warn -i -t$0
+}
+
+## Check for the presence of both, root accounts with and without password.
+# This might have been caused by a bug related to mysql_install_db (#418672).
+function check_root_accounts() {
+ set -e
+ set -u
+
+ logger -p daemon.info -i -t$0 "Checking for insecure root accounts."
+
+ ret=$( echo "SELECT count(*) FROM mysql.user WHERE user='root' and password='' and plugin='';" | $MYSQL --skip-column-names )
+ if [ "$ret" -ne "0" ]; then
+ logger -p daemon.warn -i -t$0 "WARNING: mysql.user contains $ret root accounts without password or plugin!"
+ fi
+}
diff --git a/debian/additions/echo_stderr b/debian/additions/echo_stderr
new file mode 100755
index 0000000..67b3ed7
--- /dev/null
+++ b/debian/additions/echo_stderr
@@ -0,0 +1,2 @@
+#!/bin/bash
+echo "$*" 1>&2
diff --git a/debian/additions/innotop/changelog.innotop b/debian/additions/innotop/changelog.innotop
new file mode 100644
index 0000000..67bc526
--- /dev/null
+++ b/debian/additions/innotop/changelog.innotop
@@ -0,0 +1,441 @@
+Changelog for innotop:
+
+2017-01-20: version 1.11.4
+ * add SUM function for ONLY_FULL_GROUP_BY
+
+2017-01-20: version 1.11.3
+
+ * Undisplay handlersocket's threads in hide_inactive
+ * fix runtime error regarding redundant sprintf argument #122
+ * added sort on connection-name in display M, after sql/io running, seconds behind master and channel_name
+ * fixed bug that removed value for cxn and channel_name columns in display M
+ * added sort on replication delay, so that the replication-display will sort on slave_sql_running, timelag (in minutes) and channel_name.
+ * support for MariaDB 10.0 in InnoDB row (issue 93)
+
+2013-07-12: version 1.9.1
+
+ Bugs fixed:
+ * Support of MySQL 5.6 was broken on some pages (issue 82, 83)
+ * Deadlock clearing transactions is now not included in binary log
+ (issue 84)
+ * New spec file with requirements and build requirements for
+ CentOS/RHEL and Fedora
+
+2012-09-07: version 1.9.0
+
+ Changes:
+ * A new Health Dashboard (A) mode is the default mode.
+ * Added a new InnoDB Locked (K) mode.
+ * Added a new 'spark' config variable for sparklines.
+ * Added a new fuzzy_time formatting function.
+ * Added "query distill" summarizing.
+ * Handled more types of errors connecting to the server.
+ * Displayed some data more compactly.
+
+ Bugs fixed:
+ * Double-quotes were used to terminate strings in SQL (issue 57).
+ * T mode didn't show InnoDB transaction times (issue 67).
+ * Killing a query didn't suggest the longest-running one automatically.
+ * Connections weren't closed on exit (issue 64).
+ * Q mode didn't have connections in its header (issue 63).
+ * Connections and server groups were poorly handled (issue 68).
+ * The RPM spec file was buggy (issue 59).
+ * Event filters were defined wrong (issue 54).
+
+2012-02-25: version 1.8.1
+
+ Bugs fixed:
+ * Various parsing errors with MySQL 5.5 (issue 23, 45, 47, 51, 52, 53).
+ * RPM spec file prevented building on CentOS 5.5 using mock (issue 44).
+ * Tests worked only from the test subdirectory (issue 43).
+
+2010-11-06: version 1.8.0
+
+ Changes:
+ * Don't re-fetch SHOW VARIABLES every iteration; it's too slow on many hosts.
+ * Add a filter to remove EVENT threads in SHOW PROCESSLIST (issue 32).
+ * Add a timestamp to output in -n mode, when -t is specified (issue 37).
+ * Add a new U mode, for Percona/MariaDB USER_STATISTICS (issue 39).
+ * Add support for millisecond query time in Percona Server (issue 39).
+ * Display a summary of queries executed in Query List mode (issue 26).
+
+ Bugs fixed:
+ * Made config-file reading more robust (issue 41).
+ * Hostname parsing wasn't standards compliant (issue 30).
+ * MKDEBUG didn't work on some Perl versions (issue 22).
+ * Don't try to get InnoDB status if have_innodb != YES (issue 33).
+ * Status text from the InnoDB plugin wasn't parsed correctly (issue 36).
+ * Transaction ID from InnoDB plugin wasn't subtracted correctly (issue 38).
+ * Switching modes and pressing ? for help caused a crash (issue 40).
+
+2009-09-06: version 1.7.2
+
+ Changes:
+ * add support for --socket
+
+ Bugs fixed:
+ * remove cxn from $meta->{group_by} if there's only one connection displayed
+ * fix for issue 19 - cxn column won't become visible when viewing two
+ connections after having viewed one connection
+ * supress errors resulting from the addition of a 'BACKGROUND THREAD'
+ section in the output of 'show innodb status'
+ * possible fix for issue 22 - Useless use of a constant in void context
+ * small change to set_to_tbl() around hiding the cxn column if there
+ aren't two or more connections
+
+2009-03-09: version 1.7.1
+
+ Changes:
+ * Don't display the CXN column if only one connection is active in
+ the current view
+ * the 'state' column is now visible by default in Query List mode
+
+ Bugs fixed:
+ * fixed bug where trying to aggregate the time column would result
+ in a crash if the time column had an undef value in it, which is
+ the case when a thread is in the 'Connect' state
+ * updated innotop.spec file to reflect current version
+
+2009-02-23: version 1.7.0
+
+ Changes:
+ * supports a central config (/etc/innotop/innotop.conf)
+ * changed the default home directory config to ~/.innotop/innotop.conf
+ (away from .ini)
+ * embedded InnoDBParser.pm into innotop so it can be run with no
+ installation
+ * no longer writes a new config file by default
+ * added --skipcentral (skip reading central config) and --write (write
+ a config if none were loaded at start-up)
+ * if no config file is loaded, connect to a MySQL database on
+ localhost using mysql_read_default_group=client
+ * embedded maatkit's DSNParser.pm and added support for --user,
+ --password, --host, --port
+ * changed default mode from T (InnoDB Transactions) to Q (Query List)
+ * in addition to connected threads, now displays running and cached
+ threads in statusbar
+ * don't load connections from a config file if any DSN information or
+ a username or password is specified on the command-line
+
+ Bugs fixed:
+ * fixed bug preventing utilization of command-line options that
+ override default config settings if no config file was loaded
+ * fixed a bug where migrating from an old version of the config will
+ delete ~/innotop.ini, if it exists. Now uses File::Temp::tempfile().
+
+2007-11-09: version 1.6.0
+
+ * S mode crashed on non-numeric values.
+ * New user-defined columns crashed upon restart.
+ * Added --color option to control terminal coloring.
+
+2007-09-18: version 1.5.2
+
+ * Added the ability to monitor InnoDB status from a file.
+ * Changed W mode to L mode; it monitors all locks, not just lock waits.
+
+2007-09-16: version 1.5.1
+
+ * Added C (Command Summary) mode.
+ * Fixed a bug in the 'avg' aggregate function.
+
+2007-09-10: version 1.5.0
+
+ Changes:
+ * Added plugin functionality.
+ * Added group-by functionality.
+ * Moved the configuration file to a directory.
+ * Enhanced filtering and sorting on pivoted tables.
+ * Many small bug fixes.
+
+2007-07-16: version 1.4.3
+
+ Changes:
+ * Added standard --version command-line option
+ * Changed colors to cyan instead of blue; more visible on dark terminals.
+ * Added information to the filter-choosing dialog.
+ * Added column auto-completion when entering a filter expression.
+ * Changed Term::ReadKey from optional to mandatory.
+ * Clarified username in password prompting.
+ * Ten thousand words of documentation!
+
+ Bugs fixed:
+ * innotop crashed in W mode when InnoDB status data was truncated.
+ * innotop didn't display errors in tables if debug was enabled.
+ * The colored() subroutine wasn't being created in non-interactive mode.
+ * Don't prompt to save password except the first time.
+
+2007-05-03: version 1.4.2
+
+ This version contains all changes to the trunk until revision 239; some
+ changes in revisions 240:250 are included.
+
+ MAJOR CHANGES:
+
+ * Quick-filters to easily filter any column in any display
+ * Compatibility with MySQL 3.23 through 6.0
+ * Improved error handling when a server is down, permissions denied, etc
+ * Use additional SHOW INNODB STATUS information in 5.1.x
+ * Make all modes use tables consistently, so they can all be edited,
+ filtered, colored and sorted consistently
+ * Combine V, G and S modes into S mode, with v, g, and s hot-keys
+ * Let DBD driver read MySQL option files; permit connections without
+ user/pass/etc
+ * Compile SQL-like expressions into Perl subroutines; eliminate need to
+ know Perl
+ * Do not save all config data to config file, only save user's customizations
+ * Rewritten and improved command-line option handling
+ * Added --count, --delay, and other command-line options to support
+ run-and-exit operation
+ * Improve built-in variable sets
+ * Improve help screen with three-part balanced-column layout
+ * Simplify table-editor and improve hotkey support
+ * Require Perl to have high-resolution time support (Time::HiRes)
+ * Help the user choose a query to analyze or kill
+ * Enable EXPLAIN, show-full-query in T mode just like Q mode
+ * Let data-extraction access current, previous and incremental data sets
+ all at once
+
+ MINOR CHANGES:
+
+ * Column stabilizing for Q mode
+ * New color rules for T, Q, W modes
+ * Apply slave I/O filter to Q mode
+ * Improve detection of server version and other meta-data
+ * Make connection timeout a config variable
+ * Improve cross-version-compatible SQL syntax
+ * Get some information from the DBD driver instead of asking MySQL for it
+ * Improved error messages
+ * Improve server group creation/editing
+ * Improve connection/thread killing
+ * Fix broken key bindings and restore previously mapped hot-keys for
+ choosing columns
+ * Some documentation updates (but not nearly enough)
+ * Allow the user to specify graphing char in S mode (formerly G mode)
+ * Allow easy switching between variable sets in S mode
+ * Bind 'n' key globally to choose the 'next' server connection
+ * Bind '%' key globally to filter displayed tables
+ * Allow aligning columns on the decimal place for easy readability
+ * Add hide_hdr config variable to hide column headers in tables
+ * Add a feature to smartly run PURGE MASTER LOGS in Replication mode
+ * Enable debug mode as a globally configurable variable
+ * Improve error messages when an expression or filter doesn't compile or has
+ a run-time error; die on error when debug is enabled
+ * Allow user-configurable delays after executing SQL (to let the server
+ settle down before taking another measurement)
+ * Add an expression to show how long until a transaction is finished
+ * Add skip_innodb as a global config variable
+ * Add '%' after percentages to help disambiguate (user-configurable)
+ * Add column to M mode to help see how fast slave is catching up to master
+
+ BUG FIXES:
+
+ * T and W modes had wrong value for wait_status column
+ * Error tracking on connections didn't reset when the connection recovered
+ * wait_timeout on connections couldn't be set before MySQL 4.0.3
+ * There was a crash on 3.23 when wiping deadlocks
+ * Lettercase changes in some result sets (SHOW MASTER/SLAVE STATUS) between
+ MySQL versions crashed innotop
+ * Inactive connections crashed innotop upon access to DBD driver
+ * set_precision did not respect user defaults for number of digits
+ * --inc command-line option could not be negated
+ * InnoDB status parsing was not always parsing all needed information
+ * S mode (formerly G mode) could crash trying to divide non-numeric data
+ * M table didn't show Slave_open_temp_tables variable; incorrect lettercase
+ * DBD drivers with broken AutoCommit would crash innotop
+ * Some key bindings had incorrect labels
+ * Some config-file loading routines could load data for things that didn't
+ exist
+ * Headers printed too often in S mode
+ * High-resolution time was not used even when the user had it
+ * Non-interactive mode printed blank lines sometimes
+ * Q-mode header and statusbar showed different QPS numbers
+ * Formulas for key-cache and query-cache hit ratios were wrong
+ * Mac OS "Darwin" machines were mis-identified as Microsoft Windows
+ * Some multiplications crashed when given undefined input
+ * The commify transformation did not check its input and could crash
+ * Specifying an invalid mode on the command line or config file could crash
+ innotop
+
+2007-03-29: version 1.4.1
+
+ * More tweaks to display of connection errors.
+ * Fixed a problem with skip-innodb in MySQL 5.1.
+ * Fix a bug with dead connections in single-connection mode.
+ * Fix a regex to allow parsing more data from truncated deadlocks.
+ * Don't load active cxns from the config file if the cxn isn't defined.
+
+2007-03-03: version 1.4.0
+
+ * Further tweak error handling and display of connection errors
+ * More centralization of querying
+ * Fix forking so it doesn't kill all database connections
+ * Allow user to run innotop without permissions for GLOBAL variables and status
+
+2007-02-11: version 1.3.6
+
+ * Handle some connection failures so innotop doesn't crash because of one server.
+ * Enable incremental display in more modes.
+ * Tweaks to colorizing, color editor, and default color rules.
+ * Tweaks to default sorting rules.
+ * Use prepared statements for efficiency.
+ * Bug fixes and code cleanups.
+ * Data storage is keyed on clock ticks now.
+
+2007-02-03: version 1.3.5
+
+ * Bug fixes.
+ * More tools for editing configuration from within innotop.
+ * Filters and transformations are constrained to valid values.
+ * Support for colorizing rows.
+ * Sorting by multiple columns.
+ * Compress headers when display is very wide.
+ * Stabilize and limit column widths.
+ * Check config file formats when upgrading so upgrades go smoothly.
+ * Make D mode handle many connections at once.
+ * Extract simple expressions from data sets in column src property.
+ This makes innotop more awk-ish.
+
+2007-01-16: version 1.3
+
+ * Readline support.
+ * Can be used unattended, or in a pipe-and-filter mode
+ where it outputs tab-separated data to standard output.
+ * You can specify a config file on the command line.
+ Config files can be marked read-only.
+ * Monitor multiple servers simultaneously.
+ * Server groups to help manage many servers conveniently.
+ * Monitor master/slave status, and control slaves.
+ * Columns can have user-defined expressions as their data sources.
+ * Better configuration tools.
+ * InnoDB status information is merged into SHOW VARIABLES and
+ SHOW STATUS information, so you can access it all together.
+ * High-precision time support in more places.
+ * Lots of tweaks to make things display more readably and compactly.
+ * Column transformations and filters.
+
+2007-01-16: version 1.0.1
+ * NOTE: innotop is now hosted at Sourceforge, in Subversion not CVS.
+ The new project homepage is http://sourceforge.net/projects/innotop/
+ * Tweak default T/Q mode sort columns to match what people expect.
+ * Fix broken InnoDBParser.pm documentation (and hence man page).
+
+2007-01-06: version 1.0
+ * NOTE: innotop is now hosted at Sourceforge, in Subversion not CVS.
+ The new project homepage is http://sourceforge.net/projects/innotop/
+ * Prevent control characters from freaking terminal out.
+ * Set timeout to keep busy servers from closing connection.
+ * There is only one InnoDB insert buffer.
+ * Make licenses clear and consistent.
+
+2006-11-14: innotop 0.1.160, InnoDBParser version 1.69
+ * Support for ANSI color on Microsoft Windows (more readable, compact
+ display; thanks Gisbert W. Selke).
+ * Better handling of $ENV{HOME} on Windows.
+ * Added a LICENSE file to the package as per Gentoo bug:
+ http://bugs.gentoo.org/show_bug.cgi?id=147600
+
+2006-11-11: innotop 0.1.157, InnoDBParser version 1.69
+ * Add Microsoft Windows support.
+
+2006-10-19: innotop 0.1.154, InnoDBParser version 1.69
+ * Add O (Open Tables) mode
+ * Add some more checks to handle incomplete InnoDB status information
+
+2006-09-30: innotop 0.1.152, InnoDBParser version 1.69
+ * Figured out what was wrong with package $VERSION variable: it wasn't
+ after the package declaration!
+
+2006-09-28: innotop 0.1.152, InnoDBParser version 1.67
+ * Make more efforts towards crash-resistance and tolerance of completely
+ messed-up inputs. If innotop itself is broken, it is now much harder to
+ tell, because it just keeps on running without complaining.
+ * Fix a small bug parsing out some information and displaying it.
+
+2006-09-05: innotop 0.1.149, InnoDBParser version 1.64
+ * Try to find and eliminate any parsing code that assumes pattern matches
+ will succeed.
+
+2006-09-05: innotop 0.1.149, InnoDBParser version 1.62
+ * Make innotop crash-resistant, so I can declare it STABLE finally.
+ * Instead of using SQL conditional comments, detect MySQL version.
+
+2006-08-22: innotop 0.1.147, InnoDBParser version 1.60
+ * Fix some innotop bugs with undefined values, bad formatting etc.
+
+2006-08-19: innotop 0.1.146, InnoDBParser version 1.60
+ * Make innotop handle some unexpected NULL values in Q mode.
+ * Add OS wait information to W mode, so it is now "everything that waits."
+ * Center section captions better.
+ * Make R mode more readable and compact.
+ * Make InnoDBParser parse lock waits even when they've been waiting 0 secs.
+
+2006-08-12: innotop 0.1.139, InnoDBParser version 1.59
+ * Add more documentation
+ * Tweak V mode to show more info in less space.
+ * Fix a bug in G mode.
+
+2006-08-10: innotop 0.1.132, InnoDBParser version 1.58
+ * Handle yet more types of FK error... it will never end!
+ * Handle some special cases when DEADLOCK info truncated
+ * Add a bit more FK info to F mode in innotop
+ * More tests added to the test suite
+
+2006-08-07: innotop 0.1.131, InnoDBParser version 1.55
+ * Fix another issue with configuration
+ * Handle another type of FK error
+
+2006-08-03: innotop 0.1.130, InnoDBParser version 1.54
+ * Fix an issue loading config file
+ * Add heap_no to 'D' (InnoDB Deadlock) mode to ease deadlock debugging.
+
+2006-08-02: innotop 0.1.128, InnoDBParser version 1.54
+ * Parse lock wait information from the TRANSACTION section.
+ * Even more OS-specific parsing... pain in the butt...
+ * Add 'W' (InnoDB Lock Wait) mode.
+ * Fix some minor display issues with statusbar.
+
+2006-08-02: innotop 0.1.125, InnoDBParser version 1.50
+ * Don't try to get references to Perl built-in functions like time()
+ * Handle more OS-specific variations of InnoDB status text
+ * Add some more information to various places in innotop
+
+2006-08-01: innotop 0.1.123, InnoDBParser version 1.47
+
+ * Enhance S and G modes: clear screen and re-print headers
+ * Don't crash when deadlock data is truncated
+ * Make Analyze mode say how to get back to whatever you came from
+ * Display 'nothing to display' when there is nothing
+ * Add ability to read InnoDB status text from a file (mostly helps test)
+ * Add table of Wait Array Information in Row Op/Semaphore mode
+ * Add table of lock information in InnoDB deadlock mode
+ * Ensure new features in upgrades don't get masked by existing config files
+ * Tweak default column choices for T mode
+ * Enhance foreign key parsing
+ * Enhance physical record and data tuple parsing
+ * Enhance lock parsing (handle old-style and new-style formats)
+
+2006-07-24: innotop 0.1.112, InnoDBParser version 1.36
+
+ * InnoDBParser enhancements for FK error messages.
+ * A fix to innotop to prevent it from crashing while trying to display a FK
+ error message.
+ * Some minor cosmetic changes to number formatting in innotop.
+
+2006-07-22: innotop 0.1.106, InnoDBParser version 1.35
+
+ * InnoDBParser is much more complete and accurate.
+ * Tons of bug fixes.
+ * Add partitions to EXPLAIN mode.
+ * Enhance Q mode header, add T mode header.
+ * Share some configuration variables across modes.
+ * Add formatted time columns to Q, T modes.
+ * Add command-line argument parsing.
+ * Turn off echo when asking for password.
+ * Add option to specify port when connecting.
+ * Let display-optimized-query display multiple notes.
+ * Lots of small improvements, such as showing more info in statusbar.
+
+2006-07-02: innotop 0.1.74, InnoDBParser version 1.24
+
+ * Initial release for public consumption.
diff --git a/debian/additions/innotop/innotop b/debian/additions/innotop/innotop
new file mode 100644
index 0000000..f958eba
--- /dev/null
+++ b/debian/additions/innotop/innotop
@@ -0,0 +1,12254 @@
+#!/usr/bin/env perl
+
+# vim: tw=160:nowrap:expandtab:tabstop=3:shiftwidth=3:softtabstop=3
+
+# This program is copyright (c) 2006 Baron Schwartz, baron at xaprb dot com.
+# Maintainers since 2013 : Kenny Gryp - Frédéric Descamps
+# Feedback and improvements are gratefully received.
+#
+# THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
+# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+# MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+#
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
+# systems, you can issue `man perlgpl' or `man perlartistic' to read these
+
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
+# Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+use strict;
+use warnings FATAL => 'all';
+
+our $VERSION = '1.11.4';
+
+# Find the home directory; it's different on different OSes.
+our $homepath = $ENV{HOME} || $ENV{HOMEPATH} || $ENV{USERPROFILE} || '.';
+
+# Configuration files
+our $default_home_conf = "$homepath/.innotop/innotop.conf";
+our $default_central_conf = "/etc/innotop/innotop.conf";
+our $conf_file = "";
+
+## Begin packages ##
+
+package DSNParser;
+
+use DBI;
+use Data::Dumper;
+$Data::Dumper::Indent = 0;
+$Data::Dumper::Quotekeys = 0;
+use English qw(-no_match_vars);
+
+use constant MKDEBUG => $ENV{MKDEBUG} || 0;
+
+# Defaults are built-in, but you can add/replace items by passing them as
+# hashrefs of {key, desc, copy, dsn}. The desc and dsn items are optional.
+# You can set properties with the prop() sub. Don't set the 'opts' property.
+sub new {
+ my ( $class, @opts ) = @_;
+ my $self = {
+ opts => {
+ A => {
+ desc => 'Default character set',
+ dsn => 'charset',
+ copy => 1,
+ },
+ D => {
+ desc => 'Database to use',
+ dsn => 'database',
+ copy => 1,
+ },
+ F => {
+ desc => 'Only read default options from the given file',
+ dsn => 'mysql_read_default_file',
+ copy => 1,
+ },
+ h => {
+ desc => 'Connect to host',
+ dsn => 'host',
+ copy => 1,
+ },
+ p => {
+ desc => 'Password to use when connecting',
+ dsn => 'password',
+ copy => 1,
+ },
+ P => {
+ desc => 'Port number to use for connection',
+ dsn => 'port',
+ copy => 1,
+ },
+ S => {
+ desc => 'Socket file to use for connection',
+ dsn => 'mysql_socket',
+ copy => 1,
+ },
+ u => {
+ desc => 'User for login if not current user',
+ dsn => 'user',
+ copy => 1,
+ },
+ },
+ };
+ foreach my $opt ( @opts ) {
+ if (MKDEBUG) {
+ _d('Adding extra property ' . $opt->{key});
+ }
+ $self->{opts}->{$opt->{key}} = { desc => $opt->{desc}, copy => $opt->{copy} };
+ }
+ return bless $self, $class;
+}
+
+# Recognized properties:
+# * autokey: which key to treat a bareword as (typically h=host).
+# * dbidriver: which DBI driver to use; assumes mysql, supports Pg.
+# * required: which parts are required (hashref).
+# * setvars: a list of variables to set after connecting
+sub prop {
+ my ( $self, $prop, $value ) = @_;
+ if ( @_ > 2 ) {
+ MKDEBUG && _d("Setting $prop property");
+ $self->{$prop} = $value;
+ }
+ return $self->{$prop};
+}
+
+sub parse {
+ my ( $self, $dsn, $prev, $defaults ) = @_;
+ if ( !$dsn ) {
+ MKDEBUG && _d('No DSN to parse');
+ return;
+ }
+ MKDEBUG && _d("Parsing $dsn");
+ $prev ||= {};
+ $defaults ||= {};
+ my %given_props;
+ my %final_props;
+ my %opts = %{$self->{opts}};
+ my $prop_autokey = $self->prop('autokey');
+
+ # Parse given props
+ foreach my $dsn_part ( split(/,/, $dsn) ) {
+ if ( my ($prop_key, $prop_val) = $dsn_part =~ m/^(.)=(.*)$/ ) {
+ # Handle the typical DSN parts like h=host, P=3306, etc.
+ $given_props{$prop_key} = $prop_val;
+ }
+ elsif ( $prop_autokey ) {
+ # Handle barewords
+ MKDEBUG && _d("Interpreting $dsn_part as $prop_autokey=$dsn_part");
+ $given_props{$prop_autokey} = $dsn_part;
+ }
+ else {
+ MKDEBUG && _d("Bad DSN part: $dsn_part");
+ }
+ }
+
+ # Fill in final props from given, previous, and/or default props
+ foreach my $key ( keys %opts ) {
+ MKDEBUG && _d("Finding value for $key");
+ $final_props{$key} = $given_props{$key};
+ if ( !defined $final_props{$key}
+ && defined $prev->{$key} && $opts{$key}->{copy} )
+ {
+ $final_props{$key} = $prev->{$key};
+ MKDEBUG && _d("Copying value for $key from previous DSN");
+ }
+ if ( !defined $final_props{$key} ) {
+ $final_props{$key} = $defaults->{$key};
+ MKDEBUG && _d("Copying value for $key from defaults");
+ }
+ }
+
+ # Sanity check props
+ foreach my $key ( keys %given_props ) {
+ die "Unrecognized DSN part '$key' in '$dsn'\n"
+ unless exists $opts{$key};
+ }
+ if ( (my $required = $self->prop('required')) ) {
+ foreach my $key ( keys %$required ) {
+ die "Missing DSN part '$key' in '$dsn'\n" unless $final_props{$key};
+ }
+ }
+
+ return \%final_props;
+}
+
+sub as_string {
+ my ( $self, $dsn ) = @_;
+ return $dsn unless ref $dsn;
+ return join(',',
+ map { "$_=" . ($_ eq 'p' ? '...' : $dsn->{$_}) }
+ grep { defined $dsn->{$_} && $self->{opts}->{$_} }
+ sort keys %$dsn );
+}
+
+sub usage {
+ my ( $self ) = @_;
+ my $usage
+ = "DSN syntax is key=value[,key=value...] Allowable DSN keys:\n"
+ . " KEY COPY MEANING\n"
+ . " === ==== =============================================\n";
+ my %opts = %{$self->{opts}};
+ foreach my $key ( sort keys %opts ) {
+ $usage .= " $key "
+ . ($opts{$key}->{copy} ? 'yes ' : 'no ')
+ . ($opts{$key}->{desc} || '[No description]')
+ . "\n";
+ }
+ if ( (my $key = $self->prop('autokey')) ) {
+ $usage .= " If the DSN is a bareword, the word is treated as the '$key' key.\n";
+ }
+ return $usage;
+}
+
+# Supports PostgreSQL via the dbidriver element of $info, but assumes MySQL by
+# default.
+sub get_cxn_params {
+ my ( $self, $info ) = @_;
+ my $dsn;
+ my %opts = %{$self->{opts}};
+ my $driver = $self->prop('dbidriver') || '';
+ if ( $driver eq 'Pg' ) {
+ $dsn = 'DBI:Pg:dbname=' . ( $info->{D} || '' ) . ';'
+ . join(';', map { "$opts{$_}->{dsn}=$info->{$_}" }
+ grep { defined $info->{$_} }
+ qw(h P));
+ }
+ else {
+ $dsn = 'DBI:mysql:' . ( $info->{D} || '' ) . ';'
+ . join(';', map { "$opts{$_}->{dsn}=$info->{$_}" }
+ grep { defined $info->{$_} }
+ qw(F h P S A))
+ . ';mysql_read_default_group=client';
+ }
+ MKDEBUG && _d($dsn);
+ return ($dsn, $info->{u}, $info->{p});
+}
+
+
+# Fills in missing info from a DSN after successfully connecting to the server.
+sub fill_in_dsn {
+ my ( $self, $dbh, $dsn ) = @_;
+ my $vars = $dbh->selectall_hashref('SHOW VARIABLES', 'Variable_name');
+ my ($user, $db) = $dbh->selectrow_array('SELECT USER(), DATABASE()');
+ $user =~ s/@.*//;
+ $dsn->{h} ||= $vars->{hostname}->{Value};
+ $dsn->{S} ||= $vars->{'socket'}->{Value};
+ $dsn->{P} ||= $vars->{port}->{Value};
+ $dsn->{u} ||= $user;
+ $dsn->{D} ||= $db;
+}
+
+sub get_dbh {
+ my ( $self, $cxn_string, $user, $pass, $opts ) = @_;
+ $opts ||= {};
+ my $defaults = {
+ AutoCommit => 0,
+ RaiseError => 1,
+ PrintError => 0,
+ mysql_enable_utf8 => ($cxn_string =~ m/charset=utf8/ ? 1 : 0),
+ };
+ @{$defaults}{ keys %$opts } = values %$opts;
+ my $dbh;
+ my $tries = 2;
+ while ( !$dbh && $tries-- ) {
+ eval {
+ MKDEBUG && _d($cxn_string, ' ', $user, ' ', $pass, ' {',
+ join(', ', map { "$_=>$defaults->{$_}" } keys %$defaults ), '}');
+ $dbh = DBI->connect($cxn_string, $user, $pass, $defaults);
+ # Immediately set character set and binmode on STDOUT.
+ if ( my ($charset) = $cxn_string =~ m/charset=(\w+)/ ) {
+ my $sql = "/*!40101 SET NAMES $charset*/";
+ MKDEBUG && _d("$dbh: $sql");
+ $dbh->do($sql);
+ MKDEBUG && _d('Enabling charset for STDOUT');
+ if ( $charset eq 'utf8' ) {
+ binmode(STDOUT, ':utf8')
+ or die "Can't binmode(STDOUT, ':utf8'): $OS_ERROR";
+ }
+ else {
+ binmode(STDOUT) or die "Can't binmode(STDOUT): $OS_ERROR";
+ }
+ }
+ };
+ if ( !$dbh && $EVAL_ERROR ) {
+ MKDEBUG && _d($EVAL_ERROR);
+ if ( $EVAL_ERROR =~ m/not a compiled character set|character set utf8/ ) {
+ MKDEBUG && _d("Going to try again without utf8 support");
+ delete $defaults->{mysql_enable_utf8};
+ }
+ if ( !$tries ) {
+ die $EVAL_ERROR;
+ }
+ }
+ }
+ # If setvars exists and it's MySQL connection, set them
+ my $setvars = $self->prop('setvars');
+ if ( $cxn_string =~ m/mysql/i && $setvars ) {
+ my $sql = "SET $setvars";
+ MKDEBUG && _d("$dbh: $sql");
+ eval {
+ $dbh->do($sql);
+ };
+ if ( $EVAL_ERROR ) {
+ MKDEBUG && _d($EVAL_ERROR);
+ }
+ }
+ MKDEBUG && _d('DBH info: ',
+ $dbh,
+ Dumper($dbh->selectrow_hashref(
+ 'SELECT DATABASE(), CONNECTION_ID(), VERSION()/*!50038 , @@hostname*/')),
+ ' Connection info: ', ($dbh->{mysql_hostinfo} || 'undef'),
+ ' Character set info: ',
+ Dumper($dbh->selectall_arrayref(
+ 'SHOW VARIABLES LIKE "character_set%"', { Slice => {}})),
+ ' $DBD::mysql::VERSION: ', $DBD::mysql::VERSION,
+ ' $DBI::VERSION: ', $DBI::VERSION,
+ );
+ return $dbh;
+}
+
+# Tries to figure out a hostname for the connection.
+sub get_hostname {
+ my ( $self, $dbh ) = @_;
+ if ( my ($host) = ($dbh->{mysql_hostinfo} || '') =~ m/^(\w+) via/ ) {
+ return $host;
+ }
+ my ( $hostname, $one ) = $dbh->selectrow_array(
+ 'SELECT /*!50038 @@hostname, */ 1');
+ return $hostname;
+}
+
+# Disconnects a database handle, but complains verbosely if there are any active
+# children. These are usually $sth handles that haven't been finish()ed.
+sub disconnect {
+ my ( $self, $dbh ) = @_;
+ MKDEBUG && $self->print_active_handles($dbh);
+ $dbh->disconnect;
+}
+
+sub print_active_handles {
+ my ( $self, $thing, $level ) = @_;
+ $level ||= 0;
+ printf("# Active %sh: %s %s %s\n", ($thing->{Type} || 'undef'), "\t" x $level,
+ $thing, (($thing->{Type} || '') eq 'st' ? $thing->{Statement} || '' : ''))
+ or die "Cannot print: $OS_ERROR";
+ foreach my $handle ( grep {defined} @{ $thing->{ChildHandles} } ) {
+ $self->print_active_handles( $handle, $level + 1 );
+ }
+}
+
+sub _d {
+ my ($package, undef, $line) = caller 0;
+ @_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
+ map { defined $_ ? $_ : 'undef' }
+ @_;
+ # Use $$ instead of $PID in case the package
+ # does not use English.
+ print "# $package:$line $$ ", @_, "\n";
+}
+
+1;
+
+package InnoDBParser;
+
+use Data::Dumper;
+$Data::Dumper::Sortkeys = 1;
+use English qw(-no_match_vars);
+use List::Util qw(max);
+use POSIX qw(strftime);
+
+# Some common patterns
+my $d = qr/(\d+)/; # Digit
+my $f = qr/(\d+\.\d+)/; # Float
+my $t = qr/((?:\d+ \d+)|(?:[A-Fa-f0-9]+))/; # Transaction ID
+my $i = qr/((?:\d{1,3}\.){3}\d+)/; # IP address
+my $n = qr/([^`\s]+)/; # MySQL object name
+my $w = qr/(\w+)/; # Words
+my $fl = qr/([\w\.\/]+) line $d/; # Filename and line number
+my $h = qr/((?:0x)?[0-9a-f]*)/; # Hex
+my $s = qr/(\d{6} .?\d:\d\d:\d\d)/; # InnoDB timestamp
+
+# If you update this variable, also update the SYNOPSIS in the pod.
+my %innodb_section_headers = (
+ "TRANSACTIONS" => "tx",
+ "BUFFER POOL AND MEMORY" => "bp",
+ "SEMAPHORES" => "sm",
+ "LOG" => "lg",
+ "ROW OPERATIONS" => "ro",
+ "INSERT BUFFER AND ADAPTIVE HASH INDEX" => "ib",
+ "FILE I/O" => "io",
+ "LATEST DETECTED DEADLOCK" => "dl",
+ "LATEST FOREIGN KEY ERROR" => "fk",
+ "BACKGROUND THREAD" => "bt",
+);
+
+my %parser_for = (
+ tx => \&parse_tx_section,
+ bp => \&parse_bp_section,
+ sm => \&parse_sm_section,
+ lg => \&parse_lg_section,
+ ro => \&parse_ro_section,
+ ib => \&parse_ib_section,
+ io => \&parse_io_section,
+ dl => \&parse_dl_section,
+ fk => \&parse_fk_section,
+);
+
+my %fk_parser_for = (
+ Transaction => \&parse_fk_transaction_error,
+ Error => \&parse_fk_bad_constraint_error,
+ Cannot => \&parse_fk_cant_drop_parent_error,
+);
+
+# A thread's proc_info can be at least 98 different things I've found in the
+# source. Fortunately, most of them begin with a gerunded verb. These are
+# the ones that don't.
+my %is_proc_info = (
+ 'After create' => 1,
+ 'Execution of init_command' => 1,
+ 'FULLTEXT initialization' => 1,
+ 'Reopen tables' => 1,
+ 'Repair done' => 1,
+ 'Repair with keycache' => 1,
+ 'System lock' => 1,
+ 'Table lock' => 1,
+ 'Thread initialized' => 1,
+ 'User lock' => 1,
+ 'copy to tmp table' => 1,
+ 'discard_or_import_tablespace' => 1,
+ 'end' => 1,
+ 'got handler lock' => 1,
+ 'got old table' => 1,
+ 'init' => 1,
+ 'key cache' => 1,
+ 'locks' => 1,
+ 'malloc' => 1,
+ 'query end' => 1,
+ 'rename result table' => 1,
+ 'rename' => 1,
+ 'setup' => 1,
+ 'statistics' => 1,
+ 'status' => 1,
+ 'table cache' => 1,
+ 'update' => 1,
+);
+
+sub new {
+ bless {}, shift;
+}
+
+# Parse the status and return it.
+# See srv_printf_innodb_monitor in innobase/srv/srv0srv.c
+# Pass in the text to parse, whether to be in debugging mode, which sections
+# to parse (hashref; if empty, parse all), and whether to parse full info from
+# locks and such (probably shouldn't unless you need to).
+sub parse_status_text {
+ my ( $self, $fulltext, $debug, $sections, $full, $mysqlversion ) = @_;
+
+ die "I can't parse undef" unless defined $fulltext;
+ $fulltext =~ s/[\r\n]+/\n/g;
+
+ $sections ||= {};
+ die '$sections must be a hashref' unless ref($sections) eq 'HASH';
+
+ my %innodb_data = (
+ got_all => 0, # Whether I was able to get the whole thing
+ ts => '', # Timestamp the server put on it
+ last_secs => 0, # Num seconds the averages are over
+ sections => {}, # Parsed values from each section
+ );
+
+ if ( $debug ) {
+ $innodb_data{'fulltext'} = $fulltext;
+ }
+
+ # Get the most basic info about the status: beginning and end, and whether
+ # I got the whole thing (if there has been a big deadlock and there are
+ # too many locks to print, the output might be truncated)
+
+ my $time_text;
+ if ( ($mysqlversion =~ /^5\.[67]\./) || ($mysqlversion =~ /^10\.[012]\./) ) {
+ ( $time_text ) = $fulltext =~ m/^([0-9-]* [0-9:]*) [0-9a-fx]* INNODB MONITOR OUTPUT/m;
+ $innodb_data{'ts'} = [ parse_innodb_timestamp_56( $time_text ) ];
+ } else {
+ ( $time_text ) = $fulltext =~ m/^$s INNODB MONITOR OUTPUT$/m;
+ $innodb_data{'ts'} = [ parse_innodb_timestamp( $time_text ) ];
+ }
+
+ $innodb_data{'timestring'} = ts_to_string($innodb_data{'ts'});
+ ( $innodb_data{'last_secs'} ) = $fulltext
+ =~ m/Per second averages calculated from the last $d seconds/;
+
+ ( my $got_all ) = $fulltext =~ m/END OF INNODB MONITOR OUTPUT/;
+ $innodb_data{'got_all'} = $got_all || 0;
+
+ # Split it into sections. Each section begins with
+ # -----
+ # LABEL
+ # -----
+ my %innodb_sections;
+ my @matches = $fulltext
+ =~ m#\n(---+)\n([A-Z /]+)\n\1\n(.*?)(?=\n(---+)\n[A-Z /]+\n\4\n|$)#gs;
+ while ( my ( $start, $name, $text, $end ) = splice(@matches, 0, 4) ) {
+ $innodb_sections{$name} = [ $text, $end ? 1 : 0 ];
+ }
+
+ # Just for sanity's sake, make sure I understand what to do with each
+ # section.
+ eval {
+ foreach my $section ( keys %innodb_sections ) {
+ my $header = $innodb_section_headers{$section};
+ if ( !$header && $debug ) {
+ warn "Unknown section $section in $fulltext\n";
+ }
+
+ # The last section in the file is a special case, because instead of
+ # ending with the beginning of another section, it ends with the end of
+ # the file. So this section is complete if the entire file is
+ # complete. In different versions of InnoDB, various sections are
+ # last.
+ if ( $innodb_sections{$section}->[0] =~ s/\n---+\nEND OF INNODB.+\n=+$// ) {
+ $innodb_sections{$section}->[1] ||= $innodb_data{'got_all'};
+ }
+
+ if ( $header && $section ) {
+ $innodb_data{'sections'}->{ $header }
+ ->{'fulltext'} = $innodb_sections{$section}->[0];
+ $innodb_data{'sections'}->{ $header }
+ ->{'complete'} = $innodb_sections{$section}->[1];
+ }
+ else {
+ _debug( $debug, "header = " . ($header || 'undef') . ", section = " . ($section || 'undef')) if $debug;
+ }
+ }
+ };
+ if ( $EVAL_ERROR ) {
+ _debug( $debug, $EVAL_ERROR);
+ }
+
+ # ################################################################
+ # Parse the detailed data out of the sections.
+ # ################################################################
+ eval {
+ foreach my $section ( keys %parser_for ) {
+ if ( defined $innodb_data{'sections'}->{$section}
+ && (!%$sections || (defined($sections->{$section} && $sections->{$section})) )) {
+ $parser_for{$section}->(
+ $innodb_data{'sections'}->{$section},
+ $innodb_data{'sections'}->{$section}->{'complete'},
+ $debug,
+ $full,
+ $mysqlversion)
+ or delete $innodb_data{'sections'}->{$section};
+ }
+ else {
+ delete $innodb_data{'sections'}->{$section};
+ }
+ }
+ };
+ if ( $EVAL_ERROR ) {
+ _debug( $debug, $EVAL_ERROR);
+ }
+
+ return \%innodb_data;
+}
+
+# Parses the status text and returns it flattened out as a single hash.
+sub get_status_hash {
+ my ( $self, $fulltext, $debug, $sections, $full, $mysqlversion ) = @_;
+
+ # Parse the status text...
+ my $innodb_status
+ = $self->parse_status_text($fulltext, $debug, $sections, $full, $mysqlversion );
+
+ # Flatten the hierarchical structure into a single list by grabbing desired
+ # sections from it.
+ return
+ (map { 'IB_' . $_ => $innodb_status->{$_} } qw(timestring last_secs got_all)),
+ (map { 'IB_bp_' . $_ => $innodb_status->{'sections'}->{'bp'}->{$_} }
+ qw( writes_pending buf_pool_hit_rate total_mem_alloc buf_pool_reads
+ awe_mem_alloc pages_modified writes_pending_lru page_creates_sec
+ reads_pending pages_total buf_pool_hits writes_pending_single_page
+ page_writes_sec pages_read pages_written page_reads_sec
+ writes_pending_flush_list buf_pool_size add_pool_alloc
+ dict_mem_alloc pages_created buf_free complete )),
+ (map { 'IB_tx_' . $_ => $innodb_status->{'sections'}->{'tx'}->{$_} }
+ qw( num_lock_structs history_list_len purge_done_for transactions
+ purge_undo_for is_truncated trx_id_counter complete )),
+ (map { 'IB_ib_' . $_ => $innodb_status->{'sections'}->{'ib'}->{$_} }
+ qw( hash_table_size hash_searches_s non_hash_searches_s
+ bufs_in_node_heap used_cells size free_list_len seg_size inserts
+ merged_recs merges complete )),
+ (map { 'IB_lg_' . $_ => $innodb_status->{'sections'}->{'lg'}->{$_} }
+ qw( log_ios_done pending_chkp_writes last_chkp log_ios_s
+ log_flushed_to log_seq_no pending_log_writes complete )),
+ (map { 'IB_sm_' . $_ => $innodb_status->{'sections'}->{'sm'}->{$_} }
+ qw( wait_array_size rw_shared_spins rw_excl_os_waits mutex_os_waits
+ mutex_spin_rounds mutex_spin_waits rw_excl_spins rw_shared_os_waits
+ waits signal_count reservation_count complete )),
+ (map { 'IB_ro_' . $_ => $innodb_status->{'sections'}->{'ro'}->{$_} }
+ qw( queries_in_queue n_reserved_extents main_thread_state
+ main_thread_proc_no main_thread_id read_sec del_sec upd_sec ins_sec
+ read_views_open num_rows_upd num_rows_ins num_rows_read
+ queries_inside num_rows_del complete )),
+ (map { 'IB_fk_' . $_ => $innodb_status->{'sections'}->{'fk'}->{$_} }
+ qw( trigger parent_table child_index parent_index attempted_op
+ child_db timestring fk_name records col_name reason txn parent_db
+ type child_table parent_col complete )),
+ (map { 'IB_io_' . $_ => $innodb_status->{'sections'}->{'io'}->{$_} }
+ qw( pending_buffer_pool_flushes pending_pwrites pending_preads
+ pending_normal_aio_reads fsyncs_s os_file_writes pending_sync_ios
+ reads_s flush_type avg_bytes_s pending_ibuf_aio_reads writes_s
+ threads os_file_reads pending_aio_writes pending_log_ios os_fsyncs
+ pending_log_flushes complete )),
+ (map { 'IB_dl_' . $_ => $innodb_status->{'sections'}->{'dl'}->{$_} }
+ qw( timestring rolled_back txns complete ));
+
+}
+
+sub ts_to_string {
+ my $parts = shift;
+ return sprintf('%02d-%02d-%02d %02d:%02d:%02d', @$parts);
+}
+
+sub parse_innodb_timestamp {
+ my $text = shift;
+ my ( $y, $m, $d, $h, $i, $s )
+ = $text =~ m/^(\d\d)(\d\d)(\d\d) +(\d+):(\d+):(\d+)$/;
+ die("Can't get timestamp from $text\n") unless $y;
+ $y += 2000;
+ return ( $y, $m, $d, $h, $i, $s );
+}
+
+sub parse_innodb_timestamp_56 {
+ my $text = shift;
+ my ( $y, $m, $d, $h, $i, $s )
+ = $text =~ m/^(\d\d\d\d)-(\d\d)-(\d\d) +(\d+):(\d+):(\d+)$/;
+ die("Can't get timestamp from $text\n") unless $y;
+ return ( $y, $m, $d, $h, $i, $s );
+}
+
+sub parse_fk_section {
+ my ( $section, $complete, $debug, $full, $mysqlversion ) = @_;
+ my $fulltext = $section->{'fulltext'};
+
+ return 0 unless $fulltext;
+
+ my ( $ts, $type );
+ if ( ($mysqlversion =~ /^5.[67]\./) || ($mysqlversion =~ /^10.[012]\./) ) {
+ ( $ts, $type ) = $fulltext =~ m/^([0-9-]* [0-9:]*)\s[0-9a-fx]*\s+(\w+)/m;
+ $section->{'ts'} = [ parse_innodb_timestamp_56( $ts ) ];
+ } else {
+ ( $ts, $type ) = $fulltext =~ m/^$s\s+(\w+)/m;
+ $section->{'ts'} = [ parse_innodb_timestamp( $ts ) ];
+ }
+
+ $section->{'timestring'} = ts_to_string($section->{'ts'});
+ $section->{'type'} = $type;
+
+ # Decide which type of FK error happened, and dispatch to the right parser.
+ if ( $type && $fk_parser_for{$type} ) {
+ $fk_parser_for{$type}->( $section, $complete, $debug, $fulltext, $full );
+ }
+
+ delete $section->{'fulltext'} unless $debug;
+
+ return 1;
+}
+
+sub parse_fk_cant_drop_parent_error {
+ my ( $section, $complete, $debug, $fulltext, $full ) = @_;
+
+ # Parse the parent/child table info out
+ @{$section}{ qw(attempted_op parent_db parent_table) } = $fulltext
+ =~ m{Cannot $w table `(.*)/(.*)`}m;
+ @{$section}{ qw(child_db child_table) } = $fulltext
+ =~ m{because it is referenced by `(.*)/(.*)`}m;
+
+ ( $section->{'reason'} ) = $fulltext =~ m/(Cannot .*)/s;
+ if ( !defined $section->{reason} ) {
+ ( $section->{'reason'} ) = $fulltext =~ m/(Trying to add .*)/s;
+ }
+ $section->{'reason'} =~ s/\n(?:InnoDB: )?/ /gm
+ if $section->{'reason'};
+
+ # Certain data may not be present. Make them '' if not present.
+ map { $section->{$_} ||= "" }
+ qw(child_index fk_name col_name parent_col);
+}
+
+# See dict/dict0dict.c, function dict_foreign_error_report
+# I don't care much about these. There are lots of different messages, and
+# they come from someone trying to create a foreign key, or similar
+# statements. They aren't indicative of some transaction trying to insert,
+# delete or update data. Sometimes it is possible to parse out a lot of
+# information about the tables and indexes involved, but often the message
+# contains the DDL string the user entered, which is way too much for this
+# module to try to handle.
+sub parse_fk_bad_constraint_error {
+ my ( $section, $complete, $debug, $fulltext, $full ) = @_;
+
+ # Parse the parent/child table and index info out
+ @{$section}{ qw(child_db child_table) } = $fulltext
+ =~ m{Error in foreign key constraint of table (.*)/(.*):$}m;
+ $section->{'attempted_op'} = 'DDL';
+
+ # FK name, parent info... if possible.
+ @{$section}{ qw(fk_name col_name parent_db parent_table parent_col) }
+ = $fulltext
+ =~ m/CONSTRAINT `?$n`? FOREIGN KEY \(`?$n`?\) REFERENCES (?:`?$n`?\.)?`?$n`? \(`?$n`?\)/;
+
+ if ( !defined($section->{'fk_name'}) ) {
+ # Try to parse SQL a user might have typed in a CREATE statement or such
+ @{$section}{ qw(col_name parent_db parent_table parent_col) }
+ = $fulltext
+ =~ m/FOREIGN\s+KEY\s*\(`?$n`?\)\s+REFERENCES\s+(?:`?$n`?\.)?`?$n`?\s*\(`?$n`?\)/i;
+ }
+ $section->{'parent_db'} ||= $section->{'child_db'};
+
+ # Name of the child index (index in the same table where the FK is, see
+ # definition of dict_foreign_struct in include/dict0mem.h, where it is
+ # called foreign_index, as opposed to referenced_index which is in the
+ # parent table. This may not be possible to find.
+ @{$section}{ qw(child_index) } = $fulltext
+ =~ m/^The index in the foreign key in table is $n$/m;
+
+ @{$section}{ qw(reason) } = $fulltext =~ m/:\s*([^:]+)(?= Constraint:|$)/ms;
+ $section->{'reason'} =~ s/\s+/ /g
+ if $section->{'reason'};
+
+ # Certain data may not be present. Make them '' if not present.
+ map { $section->{$_} ||= "" }
+ qw(child_index fk_name col_name parent_table parent_col);
+}
+
+# see source file row/row0ins.c
+sub parse_fk_transaction_error {
+ my ( $section, $complete, $debug, $fulltext, $full ) = @_;
+
+ # Parse the txn info out
+ my ( $txn ) = $fulltext
+ =~ m/Transaction:\n(TRANSACTION.*)\nForeign key constraint fails/s;
+ if ( $txn ) {
+ $section->{'txn'} = parse_tx_text( $txn, $complete, $debug, $full );
+ }
+
+ # Parse the parent/child table and index info out. There are two types: an
+ # update or a delete of a parent record leaves a child orphaned
+ # (row_ins_foreign_report_err), and an insert or update of a child record has
+ # no matching parent record (row_ins_foreign_report_add_err).
+
+ @{$section}{ qw(reason child_db child_table) }
+ = $fulltext =~ m{^(Foreign key constraint fails for table `(.*?)`?[/.]`?(.*)`:)$}m;
+
+ @{$section}{ qw(fk_name col_name parent_db parent_table parent_col) }
+ = $fulltext
+ =~ m/CONSTRAINT `$n` FOREIGN KEY \(`$n`\) REFERENCES (?:`$n`\.)?`$n` \(`$n`\)/;
+ $section->{'parent_db'} ||= $section->{'child_db'};
+
+ # Special case, which I don't know how to trigger, but see
+ # innobase/row/row0ins.c row_ins_check_foreign_constraint
+ if ( $fulltext =~ m/ibd file does not currently exist!/ ) {
+ my ( $attempted_op, $index, $records )
+ = $fulltext =~ m/^Trying to (add to index) `$n` tuple:\n(.*))?/sm;
+ $section->{'child_index'} = $index;
+ $section->{'attempted_op'} = $attempted_op || '';
+ if ( $records && $full ) {
+ ( $section->{'records'} )
+ = parse_innodb_record_dump( $records, $complete, $debug );
+ }
+ @{$section}{qw(parent_db parent_table)}
+ =~ m/^But the parent table `$n`\.`$n`$/m;
+ }
+ else {
+ my ( $attempted_op, $which, $index )
+ = $fulltext =~ m/^Trying to ([\w ]*) in (child|parent) table, in index `$n` tuple:$/m;
+ if ( $which ) {
+ $section->{$which . '_index'} = $index;
+ $section->{'attempted_op'} = $attempted_op || '';
+
+ # Parse out the related records in the other table.
+ my ( $search_index, $records );
+ if ( $which eq 'child' ) {
+ ( $search_index, $records ) = $fulltext
+ =~ m/^But in parent table [^,]*, in index `$n`,\nthe closest match we can find is record:\n(.*)/ms;
+ $section->{'parent_index'} = $search_index;
+ }
+ else {
+ ( $search_index, $records ) = $fulltext
+ =~ m/^But in child table [^,]*, in index `$n`, (?:the record is not available|there is a record:\n(.*))?/ms;
+ $section->{'child_index'} = $search_index;
+ }
+ if ( $records && $full ) {
+ $section->{'records'}
+ = parse_innodb_record_dump( $records, $complete, $debug );
+ }
+ else {
+ $section->{'records'} = '';
+ }
+ }
+ }
+
+ # Parse out the tuple trying to be updated, deleted or inserted.
+ my ( $trigger ) = $fulltext =~ m/^(DATA TUPLE: \d+ fields;\n.*)$/m;
+ if ( $trigger ) {
+ $section->{'trigger'} = parse_innodb_record_dump( $trigger, $complete, $debug );
+ }
+
+ # Certain data may not be present. Make them '' if not present.
+ map { $section->{$_} ||= "" }
+ qw(child_index fk_name col_name parent_table parent_col);
+}
+
+# There are new-style and old-style record formats. See rem/rem0rec.c
+# TODO: write some tests for this
+sub parse_innodb_record_dump {
+ my ( $dump, $complete, $debug ) = @_;
+ return undef unless $dump;
+
+ my $result = {};
+
+ if ( $dump =~ m/PHYSICAL RECORD/ ) {
+ my $style = $dump =~ m/compact format/ ? 'new' : 'old';
+ $result->{'style'} = $style;
+
+ # This is a new-style record.
+ if ( $style eq 'new' ) {
+ @{$result}{qw( heap_no type num_fields info_bits )}
+ = $dump
+ =~ m/^(?:Record lock, heap no $d )?([A-Z ]+): n_fields $d; compact format; info bits $d$/m;
+ }
+
+ # OK, it's old-style. Unfortunately there are variations here too.
+ elsif ( $dump =~ m/-byte offs / ) {
+ # Older-old style.
+ @{$result}{qw( heap_no type num_fields byte_offset info_bits )}
+ = $dump
+ =~ m/^(?:Record lock, heap no $d )?([A-Z ]+): n_fields $d; $d-byte offs [A-Z]+; info bits $d$/m;
+ if ( $dump !~ m/-byte offs TRUE/ ) {
+ $result->{'byte_offset'} = 0;
+ }
+ }
+ else {
+ # Newer-old style.
+ @{$result}{qw( heap_no type num_fields byte_offset info_bits )}
+ = $dump
+ =~ m/^(?:Record lock, heap no $d )?([A-Z ]+): n_fields $d; $d-byte offsets; info bits $d$/m;
+ }
+
+ }
+ else {
+ $result->{'style'} = 'tuple';
+ @{$result}{qw( type num_fields )}
+ = $dump =~ m/^(DATA TUPLE): $d fields;$/m;
+ }
+
+ # Fill in default values for things that couldn't be parsed.
+ map { $result->{$_} ||= 0 }
+ qw(heap_no num_fields byte_offset info_bits);
+ map { $result->{$_} ||= '' }
+ qw(style type );
+
+ my @fields = $dump =~ m/ (\d+:.*?;?);(?=$| \d+:)/gm;
+ $result->{'fields'} = [ map { parse_field($_, $complete, $debug ) } @fields ];
+
+ return $result;
+}
+
+# New/old-style applies here. See rem/rem0rec.c
+# $text should not include the leading space or the second trailing semicolon.
+sub parse_field {
+ my ( $text, $complete, $debug ) = @_;
+
+ # Sample fields:
+ # '4: SQL NULL, size 4 '
+ # '1: len 6; hex 000000005601; asc V ;'
+ # '6: SQL NULL'
+ # '5: len 30; hex 687474703a2f2f7777772e737765657477617465722e636f6d2f73746f72; asc http://www.sweetwater.com/stor;...(truncated)'
+ my ( $id, $nullsize, $len, $hex, $asc, $truncated );
+ ( $id, $nullsize ) = $text =~ m/^$d: SQL NULL, size $d $/;
+ if ( !defined($id) ) {
+ ( $id ) = $text =~ m/^$d: SQL NULL$/;
+ }
+ if ( !defined($id) ) {
+ ( $id, $len, $hex, $asc, $truncated )
+ = $text =~ m/^$d: len $d; hex $h; asc (.*);(\.\.\.\(truncated\))?$/;
+ }
+
+ die "Could not parse this field: '$text'" unless defined $id;
+ return {
+ id => $id,
+ len => defined($len) ? $len : defined($nullsize) ? $nullsize : 0,
+ 'hex' => defined($hex) ? $hex : '',
+ asc => defined($asc) ? $asc : '',
+ trunc => $truncated ? 1 : 0,
+ };
+
+}
+
+sub parse_dl_section {
+ my ( $dl, $complete, $debug, $full, $mysqlversion ) = @_;
+ return unless $dl;
+ my $fulltext = $dl->{'fulltext'};
+ return 0 unless $fulltext;
+
+ my ( $ts ) = $fulltext =~ m/^$s$/m;
+ return 0 unless $ts;
+
+ if ( ($mysqlversion =~ /^5\.[67]\./) || ($mysqlversion =~ /^10\.[012]\./) ) {
+ $dl->{'ts'} = [ parse_innodb_timestamp_56( $ts ) ];
+ }
+ else {
+ $dl->{'ts'} = [ parse_innodb_timestamp( $ts ) ];
+ }
+ $dl->{'timestring'} = ts_to_string($dl->{'ts'});
+ $dl->{'txns'} = {};
+
+ my @sections
+ = $fulltext
+ =~ m{
+ ^\*{3}\s([^\n]*) # *** (1) WAITING FOR THIS...
+ (.*?) # Followed by anything, non-greedy
+ (?=(?:^\*{3})|\z) # Followed by another three stars or EOF
+ }gmsx;
+
+
+ # Loop through each section. There are no assumptions about how many
+ # there are, who holds and wants what locks, and who gets rolled back.
+ while ( my ($header, $body) = splice(@sections, 0, 2) ) {
+ my ( $txn_id, $what ) = $header =~ m/^\($d\) (.*):$/;
+ next unless $txn_id;
+ $dl->{'txns'}->{$txn_id} ||= {};
+ my $txn = $dl->{'txns'}->{$txn_id};
+
+ if ( $what eq 'TRANSACTION' ) {
+ $txn->{'tx'} = parse_tx_text( $body, $complete, $debug, $full );
+ }
+ else {
+ push @{$txn->{'locks'}}, parse_innodb_record_locks( $body, $complete, $debug, $full );
+ }
+ }
+
+ @{ $dl }{ qw(rolled_back) }
+ = $fulltext =~ m/^\*\*\* WE ROLL BACK TRANSACTION \($d\)$/m;
+
+ # Make sure certain values aren't undef
+ map { $dl->{$_} ||= '' } qw(rolled_back);
+
+ delete $dl->{'fulltext'} unless $debug;
+ return 1;
+}
+
+sub parse_innodb_record_locks {
+ my ( $text, $complete, $debug, $full ) = @_;
+ my @result;
+
+ foreach my $lock ( $text =~ m/(^(?:RECORD|TABLE) LOCKS?.*$)/gm ) {
+ my $hash = {};
+ @{$hash}{ qw(lock_type space_id page_no n_bits index db table txn_id lock_mode) }
+ = $lock
+ =~ m{^(RECORD|TABLE) LOCKS? (?:space id $d page no $d n bits $d index `?$n`? of )?table `$n(?:/|`\.`)$n` trx id $t lock.mode (\S+)}m;
+ ( $hash->{'special'} )
+ = $lock =~ m/^(?:RECORD|TABLE) .*? locks (rec but not gap|gap before rec)/m;
+ $hash->{'insert_intention'}
+ = $lock =~ m/^(?:RECORD|TABLE) .*? insert intention/m ? 1 : 0;
+ $hash->{'waiting'}
+ = $lock =~ m/^(?:RECORD|TABLE) .*? waiting/m ? 1 : 0;
+
+ # Some things may not be in the text, so make sure they are not
+ # undef.
+ map { $hash->{$_} ||= 0 } qw(n_bits page_no space_id);
+ map { $hash->{$_} ||= "" } qw(index special);
+ push @result, $hash;
+ }
+
+ return @result;
+}
+
+sub parse_tx_text {
+ my ( $txn, $complete, $debug, $full ) = @_;
+
+ my ( $txn_id, $txn_status )
+ = $txn
+ =~ m/^(?:---)?TRANSACTION $t, ([^\n0-9,]*[^\s\d])/m;
+ $txn_status =~ s/,$// if $txn_status;
+ my ( $active_secs)
+ = $txn
+ =~ m/^[^\n]*\b$d sec\b/m;
+ my ( $proc_no )
+ = $txn
+ =~ m/process no $d/m;
+ my ( $os_thread_id )
+ = $txn
+ =~ m/OS thread id $d/m;
+ my ( $thread_status, $thread_decl_inside )
+ = $txn
+ =~ m/(?:OS thread id \d+|\d sec)(?: ([^,]+?))?(?:, thread declared inside InnoDB $d)?$/m;
+
+ # Parsing the line that begins 'MySQL thread id' is complicated. The only
+ # thing always in the line is the thread and query id. See function
+ # innobase_mysql_print_thd in InnoDB source file sql/ha_innodb.cc.
+ my ( $thread_line ) = $txn =~ m/^(MySQL thread id .*)$/m;
+ my ( $mysql_thread_id, $query_id, $hostname, $ip, $user, $query_status );
+
+ if ( $thread_line ) {
+ # These parts can always be gotten.
+ ( $mysql_thread_id, $query_id ) = $thread_line =~ m/^MySQL thread id $d, .*?query id $d/m;
+
+ # If it's a master/slave thread, "Has (read|sent) all" may be the thread's
+ # proc_info. In these cases, there won't be any host/ip/user info
+ ( $query_status ) = $thread_line =~ m/(Has (?:read|sent) all .*$)/m;
+ if ( defined($query_status) ) {
+ $user = 'system user';
+ }
+
+ # It may be the case that the query id is the last thing in the line.
+ elsif ( $thread_line =~ m/query id \d+ / ) {
+ # The IP address is the only non-word thing left, so it's the most
+ # useful marker for where I have to start guessing.
+ ( $hostname, $ip ) = $thread_line =~ m/query id \d+(?: ([A-Za-z]\S+))? $i/m;
+ if ( defined $ip ) {
+ ( $user, $query_status ) = $thread_line =~ m/$ip $w(?: (.*))?$/;
+ }
+ else { # OK, there wasn't an IP address.
+ # There might not be ANYTHING except the query status.
+ ( $query_status ) = $thread_line =~ m/query id \d+ (.*)$/;
+ if ( $query_status !~ m/^\w+ing/ && !exists($is_proc_info{$query_status}) ) {
+ # The remaining tokens are, in order: hostname, user, query_status.
+ # It's basically impossible to know which is which.
+ ( $hostname, $user, $query_status ) = $thread_line
+ =~ m/query id \d+(?: ([A-Za-z]\S+))?(?: $w(?: (.*))?)?$/m;
+ if ( ($hostname || '') eq 'Slave' ) {
+ $hostname = '';
+ $user = 'system user';
+ $query_status = "Slave has $query_status";
+ }
+ }
+ else {
+ $user = 'system user';
+ }
+ }
+ }
+ }
+
+ my ( $lock_wait_status, $lock_structs, $heap_size, $row_locks, $undo_log_entries )
+ = $txn
+ =~ m/^(?:(\D*) )?$d lock struct\(s\), heap size $d(?:, $d row lock\(s\))?(?:, undo log entries $d)?$/m;
+ my ( $lock_wait_time )
+ = $txn
+ =~ m/^------- TRX HAS BEEN WAITING $d SEC/m;
+
+ my $locks;
+ # If the transaction has locks, grab the locks.
+ if ( $txn =~ m/^TABLE LOCK|RECORD LOCKS/ ) {
+ $locks = [parse_innodb_record_locks($txn, $complete, $debug, $full)];
+ }
+
+ my ( $tables_in_use, $tables_locked )
+ = $txn
+ =~ m/^mysql tables in use $d, locked $d$/m;
+ my ( $txn_doesnt_see_ge, $txn_sees_lt )
+ = $txn
+ =~ m/^Trx read view will not see trx with id >= $t, sees < $t$/m;
+ my $has_read_view = defined($txn_doesnt_see_ge);
+ # Only a certain number of bytes of the query text are included here, at least
+ # under some circumstances. Some versions include 300, some 600.
+ my ( $query_text )
+ = $txn
+ =~ m{
+ ^MySQL\sthread\sid\s[^\n]+\n # This comes before the query text
+ (.*?) # The query text
+ (?= # Followed by any of...
+ ^Trx\sread\sview
+ |^-------\sTRX\sHAS\sBEEN\sWAITING
+ |^TABLE\sLOCK
+ |^RECORD\sLOCKS\sspace\sid
+ |^(?:---)?TRANSACTION
+ |^\*\*\*\s\(\d\)
+ |\Z
+ )
+ }xms;
+ if ( $query_text ) {
+ $query_text =~ s/\s+$//;
+ }
+ else {
+ $query_text = '';
+ }
+
+ my %stuff = (
+ active_secs => $active_secs,
+ has_read_view => $has_read_view,
+ heap_size => $heap_size,
+ hostname => $hostname,
+ ip => $ip,
+ lock_structs => $lock_structs,
+ lock_wait_status => $lock_wait_status,
+ lock_wait_time => $lock_wait_time,
+ mysql_thread_id => $mysql_thread_id,
+ os_thread_id => $os_thread_id,
+ proc_no => $proc_no,
+ query_id => $query_id,
+ query_status => $query_status,
+ query_text => $query_text,
+ row_locks => $row_locks,
+ tables_in_use => $tables_in_use,
+ tables_locked => $tables_locked,
+ thread_decl_inside => $thread_decl_inside,
+ thread_status => $thread_status,
+ txn_doesnt_see_ge => $txn_doesnt_see_ge,
+ txn_id => $txn_id,
+ txn_sees_lt => $txn_sees_lt,
+ txn_status => $txn_status,
+ undo_log_entries => $undo_log_entries,
+ user => $user,
+ );
+ $stuff{'fulltext'} = $txn if $debug;
+ $stuff{'locks'} = $locks if $locks;
+
+ # Some things may not be in the txn text, so make sure they are not
+ # undef.
+ map { $stuff{$_} ||= 0 } qw(active_secs heap_size lock_structs
+ tables_in_use undo_log_entries tables_locked has_read_view
+ thread_decl_inside lock_wait_time proc_no row_locks);
+ map { $stuff{$_} ||= "" } qw(thread_status txn_doesnt_see_ge
+ txn_sees_lt query_status ip query_text lock_wait_status user);
+ $stuff{'hostname'} ||= $stuff{'ip'};
+
+ return \%stuff;
+}
+
+sub parse_tx_section {
+ my ( $section, $complete, $debug, $full ) = @_;
+ return unless $section && $section->{'fulltext'};
+ my $fulltext = $section->{'fulltext'};
+ $section->{'transactions'} = [];
+
+ # Handle the individual transactions
+ my @transactions = $fulltext =~ m/(---TRANSACTION [0-9A-Fa-f].*?)(?=\n---TRANSACTION|$)/gs;
+ foreach my $txn ( @transactions ) {
+ my $stuff = parse_tx_text( $txn, $complete, $debug, $full );
+ delete $stuff->{'fulltext'} unless $debug;
+ push @{$section->{'transactions'}}, $stuff;
+ }
+
+ # Handle the general info
+ @{$section}{ 'trx_id_counter' }
+ = $fulltext =~ m/^Trx id counter $t$/m;
+ @{$section}{ 'purge_done_for', 'purge_undo_for' }
+ = $fulltext =~ m/^Purge done for trx's n:o < $t undo n:o < $t$/m;
+ @{$section}{ 'history_list_len' } # This isn't present in some 4.x versions
+ = $fulltext =~ m/^History list length $d$/m;
+ @{$section}{ 'num_lock_structs' }
+ = $fulltext =~ m/^Total number of lock structs in row lock hash table $d$/m;
+ @{$section}{ 'is_truncated' }
+ = $fulltext =~ m/^\.\.\. truncated\.\.\.$/m ? 1 : 0;
+
+ # Fill in things that might not be present
+ foreach ( qw(history_list_len) ) {
+ $section->{$_} ||= 0;
+ }
+
+ delete $section->{'fulltext'} unless $debug;
+ return 1;
+}
+
+# I've read the source for this section.
+sub parse_ro_section {
+ my ( $section, $complete, $debug, $full ) = @_;
+ return unless $section && $section->{'fulltext'};
+ my $fulltext = $section->{'fulltext'};
+
+ # Grab the info
+ @{$section}{ 'queries_inside', 'queries_in_queue' }
+ = $fulltext =~ m/^$d queries inside InnoDB, $d queries in queue$/m;
+ ( $section->{ 'read_views_open' } )
+ = $fulltext =~ m/^$d read views open inside InnoDB$/m;
+ ( $section->{ 'n_reserved_extents' } )
+ = $fulltext =~ m/^$d tablespace extents now reserved for B-tree/m;
+ @{$section}{ 'main_thread_proc_no', 'main_thread_id', 'main_thread_state' }
+ = $fulltext =~ m/^Main thread (?:process no. $d, )?id $d, state: (.*)$/m;
+ @{$section}{ 'num_rows_ins', 'num_rows_upd', 'num_rows_del', 'num_rows_read' }
+ = $fulltext =~ m/^Number of rows inserted $d, updated $d, deleted $d, read $d$/m;
+ @{$section}{ 'ins_sec', 'upd_sec', 'del_sec', 'read_sec' }
+ = $fulltext =~ m#^$f inserts/s, $f updates/s, $f deletes/s, $f reads/s$#m;
+ $section->{'main_thread_proc_no'} ||= 0;
+
+ map { $section->{$_} ||= 0 } qw(read_views_open n_reserved_extents);
+ delete $section->{'fulltext'} unless $debug;
+ return 1;
+}
+
+sub parse_lg_section {
+ my ( $section, $complete, $debug, $full ) = @_;
+ return unless $section;
+ my $fulltext = $section->{'fulltext'};
+
+ # Grab the info
+ ( $section->{ 'log_seq_no' } )
+ = $fulltext =~ m/Log sequence number \s*(\d.*)$/m;
+ ( $section->{ 'log_flushed_to' } )
+ = $fulltext =~ m/Log flushed up to \s*(\d.*)$/m;
+ ( $section->{ 'last_chkp' } )
+ = $fulltext =~ m/Last checkpoint at \s*(\d.*)$/m;
+ @{$section}{ 'pending_log_writes', 'pending_chkp_writes' }
+ = $fulltext =~ m/$d pending log (?:writes|flushes), $d pending chkp writes/;
+ @{$section}{ 'log_ios_done', 'log_ios_s' }
+ = $fulltext =~ m#$d log i/o's done, $f log i/o's/second#;
+
+ delete $section->{'fulltext'} unless $debug;
+ return 1;
+}
+
+sub parse_ib_section {
+ my ( $section, $complete, $debug, $full ) = @_;
+ return unless $section && $section->{'fulltext'};
+ my $fulltext = $section->{'fulltext'};
+
+ # Some servers will output ibuf information for tablespace 0, as though there
+ # might be many tablespaces with insert buffers. (In practice I believe
+ # the source code shows there will only ever be one). I have to parse both
+ # cases here, but I assume there will only be one.
+ @{$section}{ 'size', 'free_list_len', 'seg_size' }
+ = $fulltext =~ m/^Ibuf(?: for space 0)?: size $d, free list len $d, seg size $d/m;
+ @{$section}{ 'inserts', 'merged_recs', 'merges' }
+ = $fulltext =~ m/^$d inserts, $d merged recs, $d merges$/m;
+ if ( ! defined $section->{inserts} ) {
+ @{$section}{ 'inserts' }
+ = $fulltext =~ m/merged operations:\n insert $d,/s;
+ # This isn't really true, but it's not really important either. We already
+ # aren't supporting the 'delete' operations.
+ @{$section}{ 'merged_recs', 'merges' } = (0, 0);
+ }
+
+ @{$section}{ 'hash_table_size', 'used_cells', 'bufs_in_node_heap' }
+ = $fulltext =~ m/^Hash table size $d(?:, used cells $d)?, node heap has $d buffer\(s\)$/m;
+ @{$section}{ 'hash_searches_s', 'non_hash_searches_s' }
+ = $fulltext =~ m{^$f hash searches/s, $f non-hash searches/s$}m;
+
+ delete $section->{'fulltext'} unless $debug;
+ return 1;
+}
+
+sub parse_wait_array {
+ my ( $text, $complete, $debug, $full ) = @_;
+ my %result;
+
+ @result{ qw(thread waited_at_filename waited_at_line waited_secs) }
+ = $text =~ m/^--Thread $d has waited at $fl for $f seconds/m;
+
+ # Depending on whether it's a SYNC_MUTEX,RW_LOCK_EX,RW_LOCK_SHARED,
+ # there will be different text output
+ if ( $text =~ m/^Mutex at/m ) {
+ $result{'request_type'} = 'M';
+ @result{ qw( lock_mem_addr lock_cfile_name lock_cline lock_var) }
+ = $text =~ m/^Mutex at $h created file $fl, lock var $d$/m;
+ @result{ qw( waiters_flag )}
+ = $text =~ m/^waiters flag $d$/m;
+ }
+ else {
+ @result{ qw( request_type lock_mem_addr lock_cfile_name lock_cline) }
+ = $text =~ m/^(.)-lock on RW-latch at $h created in file $fl$/m;
+ @result{ qw( writer_thread writer_lock_mode ) }
+ = $text =~ m/^a writer \(thread id $d\) has reserved it in mode (.*)$/m;
+ @result{ qw( num_readers waiters_flag )}
+ = $text =~ m/^number of readers $d, waiters flag $d$/m;
+ @result{ qw(last_s_file_name last_s_line ) }
+ = $text =~ m/Last time read locked in file $fl$/m;
+ @result{ qw(last_x_file_name last_x_line ) }
+ = $text =~ m/Last time write locked in file $fl$/m;
+ }
+
+ $result{'cell_waiting'} = $text =~ m/^wait has ended$/m ? 0 : 1;
+ $result{'cell_event_set'} = $text =~ m/^wait is ending$/m ? 1 : 0;
+
+ # Because there are two code paths, some things won't get set.
+ map { $result{$_} ||= '' }
+ qw(last_s_file_name last_x_file_name writer_lock_mode);
+ map { $result{$_} ||= 0 }
+ qw(num_readers lock_var last_s_line last_x_line writer_thread);
+
+ return \%result;
+}
+
+sub parse_sm_section {
+ my ( $section, $complete, $debug, $full ) = @_;
+ return 0 unless $section && $section->{'fulltext'};
+ my $fulltext = $section->{'fulltext'};
+
+ # Grab the info
+ @{$section}{ 'reservation_count', 'signal_count' }
+ = $fulltext =~ m/^OS WAIT ARRAY INFO: reservation count $d, signal count $d$/m;
+ @{$section}{ 'mutex_spin_waits', 'mutex_spin_rounds', 'mutex_os_waits' }
+ = $fulltext =~ m/^Mutex spin waits $d, rounds $d, OS waits $d$/m;
+ @{$section}{ 'rw_shared_spins', 'rw_shared_os_waits', 'rw_excl_spins', 'rw_excl_os_waits' }
+ = $fulltext =~ m/^RW-shared spins $d, OS waits $d; RW-excl spins $d, OS waits $d$/m;
+ if ( ! defined $section->{rw_shared_spins} ) {
+ @{$section}{ 'rw_shared_spins', 'rw_shared_os_waits'}
+ = $fulltext =~ m/^RW-shared spins $d, rounds \d+, OS waits $d$/m;
+ @{$section}{ 'rw_excl_spins', 'rw_excl_os_waits' }
+ = $fulltext =~ m/^RW-excl spins $d, rounds \d+, OS waits $d$/m;
+ }
+
+ # Look for info on waits.
+ my @waits = $fulltext =~ m/^(--Thread.*?)^(?=Mutex spin|--Thread)/gms;
+ $section->{'waits'} = [ map { parse_wait_array($_, $complete, $debug) } @waits ];
+ $section->{'wait_array_size'} = scalar(@waits);
+
+ delete $section->{'fulltext'} unless $debug;
+ return 1;
+}
+
+# I've read the source for this section.
+sub parse_bp_section {
+ my ( $section, $complete, $debug, $full ) = @_;
+ return unless $section && $section->{'fulltext'};
+ my $fulltext = $section->{'fulltext'};
+
+ # Grab the info
+ @{$section}{ 'total_mem_alloc', 'add_pool_alloc' }
+ = $fulltext =~ m/^Total memory allocated $d; in additional pool allocated $d$/m;
+ @{$section}{'dict_mem_alloc'} = $fulltext =~ m/Dictionary memory allocated $d/;
+ @{$section}{'awe_mem_alloc'} = $fulltext =~ m/$d MB of AWE memory/;
+ @{$section}{'buf_pool_size'} = $fulltext =~ m/^Buffer pool size\s*$d$/m;
+ @{$section}{'buf_free'} = $fulltext =~ m/^Free buffers\s*$d$/m;
+ @{$section}{'pages_total'} = $fulltext =~ m/^Database pages\s*$d$/m;
+ @{$section}{'pages_modified'} = $fulltext =~ m/^Modified db pages\s*$d$/m;
+ @{$section}{'pages_read', 'pages_created', 'pages_written'}
+ = $fulltext =~ m/^Pages read $d, created $d, written $d$/m;
+ @{$section}{'page_reads_sec', 'page_creates_sec', 'page_writes_sec'}
+ = $fulltext =~ m{^$f reads/s, $f creates/s, $f writes/s$}m;
+ @{$section}{'buf_pool_hits', 'buf_pool_reads'}
+ = $fulltext =~ m{Buffer pool hit rate $d / $d}m;
+ if ($fulltext =~ m/^No buffer pool page gets since the last printout$/m) {
+ @{$section}{'buf_pool_hits', 'buf_pool_reads'} = (0, 0);
+ @{$section}{'buf_pool_hit_rate'} = '--';
+ }
+ else {
+ @{$section}{'buf_pool_hit_rate'}
+ = $fulltext =~ m{Buffer pool hit rate (\d+ / \d+)}m;
+ }
+ @{$section}{'reads_pending'} = $fulltext =~ m/^Pending reads $d/m;
+ @{$section}{'writes_pending_lru', 'writes_pending_flush_list', 'writes_pending_single_page' }
+ = $fulltext =~ m/^Pending writes: LRU $d, flush list $d, single page $d$/m;
+
+ map { $section->{$_} ||= 0 }
+ qw(writes_pending_lru writes_pending_flush_list writes_pending_single_page
+ awe_mem_alloc dict_mem_alloc);
+ @{$section}{'writes_pending'} = List::Util::sum(
+ @{$section}{ qw(writes_pending_lru writes_pending_flush_list writes_pending_single_page) });
+
+ delete $section->{'fulltext'} unless $debug;
+ return 1;
+}
+
+# I've read the source for this.
+sub parse_io_section {
+ my ( $section, $complete, $debug, $full ) = @_;
+ return unless $section && $section->{'fulltext'};
+ my $fulltext = $section->{'fulltext'};
+ $section->{'threads'} = {};
+
+ # Grab the I/O thread info
+ my @threads = $fulltext =~ m<^(I/O thread \d+ .*)$>gm;
+ foreach my $thread (@threads) {
+ my ( $tid, $state, $purpose, $event_set )
+ = $thread =~ m{I/O thread $d state: (.+?) \((.*)\)(?: ev set)?$}m;
+ if ( defined $tid ) {
+ $section->{'threads'}->{$tid} = {
+ thread => $tid,
+ state => $state,
+ purpose => $purpose,
+ event_set => $event_set ? 1 : 0,
+ };
+ }
+ }
+
+ # Grab the reads/writes/flushes info
+ @{$section}{ 'pending_normal_aio_reads', 'pending_aio_writes' }
+ = $fulltext =~ m/^Pending normal aio reads: $d(?: [^\]]*\])?, aio writes: $d/m;
+ @{$section}{ 'pending_ibuf_aio_reads', 'pending_log_ios', 'pending_sync_ios' }
+ = $fulltext =~ m{^ ibuf aio reads: $d, log i/o's: $d, sync i/o's: $d$}m;
+ @{$section}{ 'flush_type', 'pending_log_flushes', 'pending_buffer_pool_flushes' }
+ = $fulltext =~ m/^Pending flushes \($w\) log: $d; buffer pool: $d$/m;
+ @{$section}{ 'os_file_reads', 'os_file_writes', 'os_fsyncs' }
+ = $fulltext =~ m/^$d OS file reads, $d OS file writes, $d OS fsyncs$/m;
+ @{$section}{ 'reads_s', 'avg_bytes_s', 'writes_s', 'fsyncs_s' }
+ = $fulltext =~ m{^$f reads/s, $d avg bytes/read, $f writes/s, $f fsyncs/s$}m;
+ @{$section}{ 'pending_preads', 'pending_pwrites' }
+ = $fulltext =~ m/$d pending preads, $d pending pwrites$/m;
+ @{$section}{ 'pending_preads', 'pending_pwrites' } = (0, 0)
+ unless defined($section->{'pending_preads'});
+
+ delete $section->{'fulltext'} unless $debug;
+ return 1;
+}
+
+sub _debug {
+ my ( $debug, $msg ) = @_;
+ if ( $debug ) {
+ die $msg;
+ }
+ else {
+ warn $msg;
+ }
+ return 1;
+}
+
+1;
+
+# end_of_package InnoDBParser
+
+package main;
+
+use sigtrap qw(handler finish untrapped normal-signals);
+
+use Data::Dumper;
+use DBI;
+use English qw(-no_match_vars);
+use File::Basename qw(dirname);
+use File::Temp;
+use Getopt::Long;
+use List::Util qw(max min maxstr sum);
+use POSIX qw(ceil);
+use Time::HiRes qw(time sleep);
+use Term::ReadKey qw(ReadMode ReadKey);
+
+# License and warranty information. {{{1
+# ###########################################################################
+
+my $innotop_license = <<"LICENSE";
+
+This is innotop version $VERSION, a MySQL and InnoDB monitor.
+
+This program is copyright (c) 2006 Baron Schwartz.
+Feedback and improvements are welcome.
+
+THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
+systems, you can issue `man perlgpl' or `man perlartistic' to read these
+licenses.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA.
+LICENSE
+
+# Configuration information and global setup {{{1
+# ###########################################################################
+
+# Really, really, super-global variables.
+my @config_versions = (
+ "000-000-000", "001-003-000", # config file was one big name-value hash.
+ "001-003-000", "001-004-002", # config file contained non-user-defined stuff.
+);
+
+my $clear_screen_sub;
+my $dsn_parser = new DSNParser();
+
+# This defines expected properties and defaults for the column definitions that
+# eventually end up in tbl_meta.
+my %col_props = (
+ hdr => '',
+ just => '-',
+ dec => 0, # Whether to align the column on the decimal point
+ num => 0,
+ label => '',
+ user => 0,
+ src => '',
+ tbl => '', # Helps when writing/reading custom columns in config files
+ minw => 0,
+ maxw => 0,
+ trans => [],
+ agg => 'first', # Aggregate function
+ aggonly => 0, # Whether to show only when tbl_meta->{aggregate} is true
+ agghide => 0, # Whether NOT to show when tbl_meta->{aggregate} is true
+);
+
+# Actual DBI connections to MySQL servers.
+my %dbhs;
+
+# Command-line parameters {{{2
+# ###########################################################################
+
+my @opt_spec = (
+ { s => 'help', d => 'Show this help message' },
+ { s => 'color|C!', d => 'Use terminal coloring (default)', c => 'color' },
+ { s => 'config|c=s', d => 'Config file to read' },
+ { s => 'nonint|n', d => 'Non-interactive, output tab-separated fields' },
+ { s => 'count=i', d => 'Number of updates before exiting' },
+ { s => 'delay|d=f', d => 'Delay between updates in seconds', c => 'interval' },
+ { s => 'mode|m=s', d => 'Operating mode to start in', c => 'mode' },
+ { s => 'inc|i!', d => 'Measure incremental differences', c => 'status_inc' },
+ { s => 'spark=i', d => 'Length of status sparkline (default 10)', c=> 'spark' },
+ { s => 'write|w', d => 'Write running configuration into home directory if no config files were loaded' },
+ { s => 'skipcentral|s', d => 'Skip reading the central configuration file' },
+ { s => 'version', d => 'Output version information and exit' },
+ { s => 'user|u=s', d => 'User for login if not current user' },
+ { s => 'password|p=s', d => 'Password to use for connection' },
+ { s => 'askpass', d => 'Prompt for a password when connecting to MySQL'},
+ { s => 'host|h=s', d => 'Connect to host' },
+ { s => 'port|P=i', d => 'Port number to use for connection' },
+ { s => 'socket|S=s', d => 'MySQL socket to use for connection' },
+ { s => 'timestamp|t+', d => 'Print timestamp in -n mode (1: per iter; 2: per line)' },
+);
+
+# This is the container for the command-line options' values to be stored in
+# after processing. Initial values are defaults.
+my %opts = (
+ n => !( -t STDIN && -t STDOUT ), # If in/out aren't to terminals, we're interactive
+);
+# Post-process...
+my %opt_seen;
+foreach my $spec ( @opt_spec ) {
+ my ( $long, $short ) = $spec->{s} =~ m/^(\w+)(?:\|([^!+=:]*))?/;
+ $spec->{k} = $short || $long;
+ $spec->{l} = $long;
+ $spec->{t} = $short;
+ $spec->{n} = $spec->{s} =~ m/!/;
+ $opts{$spec->{k}} = undef unless defined $opts{$spec->{k}};
+ die "Duplicate option $spec->{k}" if $opt_seen{$spec->{k}}++;
+}
+
+Getopt::Long::Configure('no_ignore_case', 'bundling');
+GetOptions( map { $_->{s} => \$opts{$_->{k}} } @opt_spec) or $opts{help} = 1;
+
+if ( $opts{version} ) {
+ print "innotop Ver $VERSION\n";
+ exit(0);
+}
+
+if ( $opts{c} and ! -f $opts{c} ) {
+ print $opts{c} . " doesn't exist. Exiting.\n";
+ exit(1);
+}
+
+if ( $opts{'askpass'} ) {
+ $opts{'p'} = noecho_password("Enter password ");
+}
+
+if ( $opts{'help'} ) {
+ print "Usage: innotop <options> <innodb-status-file>\n\n";
+ my $maxw = max(map { length($_->{l}) + ($_->{n} ? 4 : 0)} @opt_spec);
+ foreach my $spec ( sort { $a->{l} cmp $b->{l} } @opt_spec ) {
+ my $long = $spec->{n} ? "[no]$spec->{l}" : $spec->{l};
+ my $short = $spec->{t} ? "-$spec->{t}" : '';
+ printf(" --%-${maxw}s %-4s %s\n", $long, $short, $spec->{d});
+ }
+ print <<USAGE;
+
+innotop is a MySQL and InnoDB transaction/status monitor, like 'top' for
+MySQL. It displays queries, InnoDB transactions, lock waits, deadlocks,
+foreign key errors, open tables, replication status, buffer information,
+row operations, logs, I/O operations, load graph, and more. You can
+monitor many servers at once with innotop.
+
+USAGE
+ exit(1);
+}
+
+if ( defined($opts{p}) && length($opts{p}) == 0 ) {
+ print "Enter password: ";
+ ReadMode('noecho');
+ $opts{p} = <STDIN>;
+ chomp($opts{p});
+ ReadMode('normal');
+}
+
+# Meta-data (table definitions etc) {{{2
+# ###########################################################################
+
+# Expressions {{{3
+# Convenience so I can copy/paste these in several places...
+# ###########################################################################
+my %exprs = (
+ Host => q{my $host = host || hostname || ''; ($host) = $host =~ m/^((?:[\d.]+(?=:|$))|(?:[a-z0-9-]+))/i; return $host || ''},
+ Port => q{my ($p) = host =~ m/:(.*)$/; return $p || 0},
+ OldVersions => q{dulint_to_int(IB_tx_trx_id_counter) - dulint_to_int(IB_tx_purge_done_for)},
+ MaxTxnTime => q/max(map{ $_->{active_secs} } @{ IB_tx_transactions }) || 0/,
+ NumTxns => q{scalar @{ IB_tx_transactions } },
+ DirtyBufs => q{ $cur->{IB_bp_pages_modified} / ($cur->{IB_bp_buf_pool_size} || 1) },
+ BufPoolFill => q{ $cur->{IB_bp_pages_total} / ($cur->{IB_bp_buf_pool_size} || 1) },
+ ServerLoad => q{ $cur->{Threads_connected}/(Questions||1)/Uptime_hires },
+ Connection => q{ max_connections || $cur->{Threads_connected} },
+ chcxn_2_cxn => q{ if ( defined($cur->{cxn}) ) { return $cur->{cxn}; } else { my ($cha, $conn) = split ("=",$cur->{chcxn}) ; return $conn; } },
+ chcxn_2_ch => q{ if ( defined($cur->{channel_name}) ) { return $cur->{channel_name}; } else { my ($cha, $conn) = split ("=",$cur->{chcxn}) ; $cha = '' if ($cha = /no_channels/); return $cha || 'failed'; } },
+ TxnTimeRemain => q{ defined undo_log_entries && defined $pre->{undo_log_entries} && undo_log_entries < $pre->{undo_log_entries} ? undo_log_entries / (($pre->{undo_log_entries} - undo_log_entries)/((active_secs-$pre->{active_secs})||1))||1 : 0},
+ SlaveCatchupRate => ' defined $cur->{seconds_behind_master} && defined $pre->{seconds_behind_master} && $cur->{seconds_behind_master} < $pre->{seconds_behind_master} ? ($pre->{seconds_behind_master}-$cur->{seconds_behind_master})/($cur->{Uptime_hires}-$pre->{Uptime_hires}) : 0',
+ QcacheHitRatio => q{(Qcache_hits||0)/(((Com_select||0)+(Qcache_hits||0))||1)},
+ QueryDetail => q{sprintf("%2d/%2d/%2d/%2d",
+ ((Com_select||0)+(Qcache_hits||0))/(Questions||1)*100,
+ ((Com_insert||0)+(Com_replace||0))/(Questions||1)*100,
+ (Com_update||0)/(Questions||1)*100,
+ (Com_delete||0)/(Questions||1)*100,
+)},
+);
+
+# ###########################################################################
+# Column definitions {{{3
+# Defines every column in every table. A named column has the following
+# properties:
+# * hdr Column header/title
+# * label Documentation for humans.
+# * num Whether it's numeric (for sorting).
+# * just Alignment; generated from num, user-overridable in tbl_meta
+# * minw, maxw Auto-generated, user-overridable.
+# Values from this hash are just copied to tbl_meta, which is where everything
+# else in the program should read from.
+# ###########################################################################
+
+my %columns = (
+ active_secs => { hdr => 'SecsActive', num => 1, label => 'Seconds transaction has been active', },
+ add_pool_alloc => { hdr => 'Add\'l Pool', num => 1, label => 'Additonal pool allocated' },
+ attempted_op => { hdr => 'Action', num => 0, label => 'The action that caused the error' },
+ awe_mem_alloc => { hdr => 'AWE Memory', num => 1, label => '[Windows] AWE memory allocated' },
+ binlog_cache_overflow => { hdr => 'Binlog Cache', num => 1, label => 'Transactions too big for binlog cache that went to disk' },
+ binlog_do_db => { hdr => 'Binlog Do DB', num => 0, label => 'binlog-do-db setting' },
+ binlog_ignore_db => { hdr => 'Binlog Ignore DB', num => 0, label => 'binlog-ignore-db setting' },
+ blocking_thread => { hdr => 'BThread', num => 1, label => 'Blocking thread' },
+ blocking_query => { hdr => 'Blocking Query', num => 0, label => 'Blocking query' },
+ blocking_rows_modified => { hdr => 'BRowsMod', num => 1, label => 'Blocking number rows modified' },
+ blocking_age => { hdr => 'BAge', num => 1, label => 'Blocking age' },
+ blocking_wait_secs => { hdr => 'BWait', num => 1, label => 'Blocking wait time' },
+ blocking_user => { hdr => 'BUser', num => 0, label => 'Blocking user' },
+ blocking_host => { hdr => 'BHost', num => 0, label => 'Blocking host' },
+ blocking_db => { hdr => 'BDB', num => 0, label => 'Blocking database' },
+ blocking_status => { hdr => 'BStatus', num => 0, label => 'Blocking thread status' },
+ bps_in => { hdr => 'BpsIn', num => 1, label => 'Bytes per second received by the server', },
+ bps_out => { hdr => 'BpsOut', num => 1, label => 'Bytes per second sent by the server', },
+ buf_free => { hdr => 'Free Bufs', num => 1, label => 'Buffers free in the buffer pool' },
+ buf_pool_hit_rate => { hdr => 'Hit Rate', num => 0, label => 'Buffer pool hit rate' },
+ buf_pool_hits => { hdr => 'Hits', num => 1, label => 'Buffer pool hits' },
+ buf_pool_reads => { hdr => 'Reads', num => 1, label => 'Buffer pool reads' },
+ buf_pool_size => { hdr => 'Size', num => 1, label => 'Buffer pool size' },
+ bufs_in_node_heap => { hdr => 'Node Heap Bufs', num => 1, label => 'Buffers in buffer pool node heap' },
+ bytes_behind_master => { hdr => 'ByteLag', num => 1, label => 'Bytes the slave lags the master in binlog' },
+ cell_event_set => { hdr => 'Ending?', num => 1, label => 'Whether the cell event is set' },
+ cell_waiting => { hdr => 'Waiting?', num => 1, label => 'Whether the cell is waiting' },
+ channel_name => { hdr => 'Channel', num => 0, label => 'The name of the replication channel' },
+ child_db => { hdr => 'Child DB', num => 0, label => 'The database of the child table' },
+ child_index => { hdr => 'Child Index', num => 0, label => 'The index in the child table' },
+ child_table => { hdr => 'Child Table', num => 0, label => 'The child table' },
+ cmd => { hdr => 'Cmd', num => 0, label => 'Type of command being executed', },
+ cnt => { hdr => 'Cnt', num => 0, label => 'Count', agg => 'count', aggonly => 1 },
+ connections => { hdr => 'Cxns', num => 1, label => 'Connections' },
+ connect_retry => { hdr => 'Connect Retry', num => 1, label => 'Slave connect-retry timeout' },
+ cxn => { hdr => 'CXN', num => 0, label => 'Connection from which the data came', },
+ db => { hdr => 'DB', num => 0, label => 'Current database', },
+ dict_mem_alloc => { hdr => 'Dict Mem', num => 1, label => 'Dictionary memory allocated' },
+ dirty_bufs => { hdr => 'Dirty Buf', num => 1, label => 'Dirty buffer pool pages' },
+ dl_txn_num => { hdr => 'Num', num => 0, label => 'Deadlocked transaction number', },
+ event_set => { hdr => 'Evt Set?', num => 1, label => '[Win32] if a wait event is set', },
+ exec_master_log_pos => { hdr => 'Exec Master Log Pos', num => 1, label => 'Exec Master Log Position' },
+ executed_gtid_set => { hdr => 'Executed GTID Set', num => 0, label => 'Executed GTID Set', },
+ fk_name => { hdr => 'Constraint', num => 0, label => 'The name of the FK constraint' },
+ free_list_len => { hdr => 'Free List Len', num => 1, label => 'Length of the free list' },
+ has_read_view => { hdr => 'Rd View', num => 1, label => 'Whether the transaction has a read view' },
+ hash_searches_s => { hdr => 'Hash/Sec', num => 1, label => 'Number of hash searches/sec' },
+ hash_table_size => { hdr => 'Size', num => 1, label => 'Number of non-hash searches/sec' },
+ heap_no => { hdr => 'Heap', num => 1, label => 'Heap number' },
+ heap_size => { hdr => 'Heap', num => 1, label => 'Heap size' },
+ history_list_len => { hdr => 'History', num => 1, label => 'History list length' },
+ host_and_domain => { hdr => 'Host', num => 0, label => 'Hostname/IP and domain' },
+ host_and_port => { hdr => 'Host/IP', num => 0, label => 'Hostname or IP address, and port number', },
+ hostname => { hdr => 'Host', num => 0, label => 'Hostname' },
+ index => { hdr => 'Index', num => 0, label => 'The index involved', agghide => 1 },
+ index_ref => { hdr => 'Index Ref', num => 0, label => 'Index referenced' },
+ info => { hdr => 'Query', num => 0, label => 'Info or the current query', },
+ insert_intention => { hdr => 'Ins Intent', num => 1, label => 'Whether the thread was trying to insert' },
+ inserts => { hdr => 'Inserts', num => 1, label => 'Inserts' },
+ io_bytes_s => { hdr => 'Bytes/Sec', num => 1, label => 'Average I/O bytes/sec' },
+ io_flush_type => { hdr => 'Flush Type', num => 0, label => 'I/O Flush Type' },
+ io_fsyncs_s => { hdr => 'fsyncs/sec', num => 1, label => 'I/O fsyncs/sec' },
+ io_reads_s => { hdr => 'Reads/Sec', num => 1, label => 'Average I/O reads/sec' },
+ io_writes_s => { hdr => 'Writes/Sec', num => 1, label => 'Average I/O writes/sec' },
+ ip => { hdr => 'IP', num => 0, label => 'IP address' },
+ is_name_locked => { hdr => 'Locked', num => 1, label => 'Whether table is name locked', },
+ key_buffer_hit => { hdr => 'KCacheHit', num => 1, label => 'Key cache hit ratio', },
+ key_len => { hdr => 'Key Length', num => 1, label => 'Number of bytes used in the key' },
+ last_chkp => { hdr => 'Last Checkpoint', num => 0, label => 'Last log checkpoint' },
+ last_errno => { hdr => 'Last Errno', num => 1, label => 'Last error number' },
+ last_error => { hdr => 'Last Error', num => 0, label => 'Last error' },
+ last_s_file_name => { hdr => 'S-File', num => 0, label => 'Filename where last read locked' },
+ last_s_line => { hdr => 'S-Line', num => 1, label => 'Line where last read locked' },
+ last_x_file_name => { hdr => 'X-File', num => 0, label => 'Filename where last write locked' },
+ last_x_line => { hdr => 'X-Line', num => 1, label => 'Line where last write locked' },
+ last_pct => { hdr => 'Pct', num => 1, label => 'Last Percentage' },
+ last_total => { hdr => 'Last Total', num => 1, label => 'Last Total' },
+ last_value => { hdr => 'Last Incr', num => 1, label => 'Last Value' },
+ load => { hdr => 'Load', num => 1, label => 'Server load' },
+ locked_count => { hdr => 'Lock', num => 1, label => 'Number of locked threads' },
+ lock_cfile_name => { hdr => 'Crtd File', num => 0, label => 'Filename where lock created' },
+ lock_cline => { hdr => 'Crtd Line', num => 1, label => 'Line where lock created' },
+ lock_info => { hdr => 'Lock Info', num => 0, label => 'Lock information' },
+ lock_mem_addr => { hdr => 'Addr', num => 0, label => 'The lock memory address' },
+ lock_mode => { hdr => 'Mode', num => 0, label => 'The lock mode' },
+ lock_structs => { hdr => 'LStrcts', num => 1, label => 'Number of lock structs' },
+ lock_type => { hdr => 'Type', num => 0, label => 'The lock type' },
+ lock_var => { hdr => 'Lck Var', num => 1, label => 'The lock variable' },
+ lock_wait_time => { hdr => 'Wait', num => 1, label => 'How long txn has waited for a lock' },
+ log_flushed_to => { hdr => 'Flushed To', num => 0, label => 'Log position flushed to' },
+ log_ios_done => { hdr => 'IO Done', num => 1, label => 'Log I/Os done' },
+ log_ios_s => { hdr => 'IO/Sec', num => 1, label => 'Average log I/Os per sec' },
+ log_seq_no => { hdr => 'Sequence No.', num => 0, label => 'Log sequence number' },
+ longest_sql => { hdr => 'SQL', num => 0, label => 'Longest-running SQL statement' },
+ main_thread_id => { hdr => 'Main Thread ID', num => 1, label => 'Main thread ID' },
+ main_thread_proc_no => { hdr => 'Main Thread Proc', num => 1, label => 'Main thread process number' },
+ main_thread_state => { hdr => 'Main Thread State', num => 0, label => 'Main thread state' },
+ master_file => { hdr => 'File', num => 0, label => 'Master file' },
+ master_host => { hdr => 'Master', num => 0, label => 'Master server hostname' },
+ master_log_file => { hdr => 'Master Log File', num => 0, label => 'Master log file' },
+ master_port => { hdr => 'Master Port', num => 1, label => 'Master port' },
+ master_pos => { hdr => 'Position', num => 1, label => 'Master position' },
+ master_ssl_allowed => { hdr => 'Master SSL Allowed', num => 0, label => 'Master SSL Allowed' },
+ master_ssl_ca_file => { hdr => 'Master SSL CA File', num => 0, label => 'Master SSL Cert Auth File' },
+ master_ssl_ca_path => { hdr => 'Master SSL CA Path', num => 0, label => 'Master SSL Cert Auth Path' },
+ master_ssl_cert => { hdr => 'Master SSL Cert', num => 0, label => 'Master SSL Cert' },
+ master_ssl_cipher => { hdr => 'Master SSL Cipher', num => 0, label => 'Master SSL Cipher' },
+ master_ssl_key => { hdr => 'Master SSL Key', num => 0, label => 'Master SSL Key' },
+ master_user => { hdr => 'Master User', num => 0, label => 'Master username' },
+ master_uuid => { hdr => 'Master UUID', num => 0, label => 'Master UUID', },
+ max_txn => { hdr => 'MaxTxnTime', num => 1, label => 'MaxTxn' },
+ max_query_time => { hdr => 'MaxSQL', num => 1, label => 'Longest running SQL' },
+ merged_recs => { hdr => 'Merged Recs', num => 1, label => 'Merged records' },
+ merges => { hdr => 'Merges', num => 1, label => 'Merges' },
+ miss_rate => { hdr => 'Miss', num => 1, label => 'InnoDB buffer pool miss rate' },
+ mutex_os_waits => { hdr => 'Waits', num => 1, label => 'Mutex OS Waits' },
+ mutex_spin_rounds => { hdr => 'Rounds', num => 1, label => 'Mutex Spin Rounds' },
+ mutex_spin_waits => { hdr => 'Spins', num => 1, label => 'Mutex Spin Waits' },
+ mysql_thread_id => { hdr => 'ID', num => 1, label => 'MySQL connection (thread) ID', },
+ name => { hdr => 'Name', num => 0, label => 'Variable Name' },
+ n_bits => { hdr => '# Bits', num => 1, label => 'Number of bits' },
+ non_hash_searches_s => { hdr => 'Non-Hash/Sec', num => 1, label => 'Non-hash searches/sec' },
+ num_deletes => { hdr => 'Del', num => 1, label => 'Number of deletes' },
+ num_deletes_sec => { hdr => 'Del/Sec', num => 1, label => 'Number of deletes' },
+ num_inserts => { hdr => 'Ins', num => 1, label => 'Number of inserts' },
+ num_inserts_sec => { hdr => 'Ins/Sec', num => 1, label => 'Number of inserts' },
+ num_readers => { hdr => 'Readers', num => 1, label => 'Number of readers' },
+ num_reads => { hdr => 'Read', num => 1, label => 'Number of reads' },
+ num_reads_sec => { hdr => 'Read/Sec', num => 1, label => 'Number of reads' },
+ num_res_ext => { hdr => 'BTree Extents', num => 1, label => 'Number of extents reserved for B-Tree' },
+ num_rows => { hdr => 'Row Count', num => 1, label => 'Number of rows estimated to examine' },
+ num_times_open => { hdr => 'In Use', num => 1, label => '# times table is opened', },
+ num_txns => { hdr => 'Txns', num => 1, label => 'Number of transactions' },
+ num_updates => { hdr => 'Upd', num => 1, label => 'Number of updates' },
+ num_updates_sec => { hdr => 'Upd/Sec', num => 1, label => 'Number of updates' },
+ 'open' => { hdr => 'Tbls', num => 1, label => 'Number of open tables' },
+ os_file_reads => { hdr => 'OS Reads', num => 1, label => 'OS file reads' },
+ os_file_writes => { hdr => 'OS Writes', num => 1, label => 'OS file writes' },
+ os_fsyncs => { hdr => 'OS fsyncs', num => 1, label => 'OS fsyncs' },
+ os_thread_id => { hdr => 'OS Thread', num => 1, label => 'The operating system thread ID' },
+ p_aio_writes => { hdr => 'Async Wrt', num => 1, label => 'Pending asynchronous I/O writes' },
+ p_buf_pool_flushes => { hdr => 'Buffer Pool Flushes', num => 1, label => 'Pending buffer pool flushes' },
+ p_ibuf_aio_reads => { hdr => 'IBuf Async Rds', num => 1, label => 'Pending insert buffer asynch I/O reads' },
+ p_log_flushes => { hdr => 'Log Flushes', num => 1, label => 'Pending log flushes' },
+ p_log_ios => { hdr => 'Log I/Os', num => 1, label => 'Pending log I/O operations' },
+ p_normal_aio_reads => { hdr => 'Async Rds', num => 1, label => 'Pending asynchronous I/O reads' },
+ p_preads => { hdr => 'preads', num => 1, label => 'Pending p-reads' },
+ p_pwrites => { hdr => 'pwrites', num => 1, label => 'Pending p-writes' },
+ p_sync_ios => { hdr => 'Sync I/Os', num => 1, label => 'Pending synchronous I/O operations' },
+ page_creates_sec => { hdr => 'Creates/Sec', num => 1, label => 'Page creates/sec' },
+ page_no => { hdr => 'Page', num => 1, label => 'Page number' },
+ page_reads_sec => { hdr => 'Reads/Sec', num => 1, label => 'Page reads per second' },
+ page_writes_sec => { hdr => 'Writes/Sec', num => 1, label => 'Page writes per second' },
+ pages_created => { hdr => 'Created', num => 1, label => 'Pages created' },
+ pages_modified => { hdr => 'Dirty Pages', num => 1, label => 'Pages modified (dirty)' },
+ pages_read => { hdr => 'Reads', num => 1, label => 'Pages read' },
+ pages_total => { hdr => 'Pages', num => 1, label => 'Pages total' },
+ pages_written => { hdr => 'Writes', num => 1, label => 'Pages written' },
+ parent_col => { hdr => 'Parent Column', num => 0, label => 'The referred column in the parent table', },
+ parent_db => { hdr => 'Parent DB', num => 0, label => 'The database of the parent table' },
+ parent_index => { hdr => 'Parent Index', num => 0, label => 'The referred index in the parent table' },
+ parent_table => { hdr => 'Parent Table', num => 0, label => 'The parent table' },
+ part_id => { hdr => 'Part ID', num => 1, label => 'Sub-part ID of the query' },
+ partitions => { hdr => 'Partitions', num => 0, label => 'Query partitions used' },
+ pct => { hdr => 'Pct', num => 1, label => 'Percentage' },
+ pending_chkp_writes => { hdr => 'Chkpt Writes', num => 1, label => 'Pending log checkpoint writes' },
+ pending_log_writes => { hdr => 'Log Writes', num => 1, label => 'Pending log writes' },
+ port => { hdr => 'Port', num => 1, label => 'Client port number', },
+ possible_keys => { hdr => 'Poss. Keys', num => 0, label => 'Possible keys' },
+ proc_no => { hdr => 'Proc', num => 1, label => 'Process number' },
+ q_detail => { hdr => 'Se/In/Up/De%', num => 0, label => 'Detailed Query', },
+ q_cache_hit => { hdr => 'QCacheHit', num => 1, label => 'Query cache hit ratio', },
+ qps => { hdr => 'QPS', num => 1, label => 'How many queries/sec', },
+ queries_in_queue => { hdr => 'Queries Queued', num => 1, label => 'Queries in queue' },
+ queries_inside => { hdr => 'Queries Inside', num => 1, label => 'Queries inside InnoDB' },
+ query_id => { hdr => 'Query ID', num => 1, label => 'Query ID' },
+ query_status => { hdr => 'Query Status', num => 0, label => 'The query status' },
+ query_text => { hdr => 'Query Text', num => 0, label => 'The query text' },
+ questions => { hdr => 'Questions', num => 1, label => 'How many queries the server has gotten', },
+ read_master_log_pos => { hdr => 'Read Master Pos', num => 1, label => 'Read master log position' },
+ read_views_open => { hdr => 'Rd Views', num => 1, label => 'Number of read views open' },
+ reads_pending => { hdr => 'Pending Reads', num => 1, label => 'Reads pending' },
+ relay_log_file => { hdr => 'Relay File', num => 0, label => 'Relay log file' },
+ relay_log_pos => { hdr => 'Relay Pos', num => 1, label => 'Relay log position' },
+ relay_log_size => { hdr => 'Relay Size', num => 1, label => 'Relay log size' },
+ relay_master_log_file => { hdr => 'Relay Master File', num => 0, label => 'Relay master log file' },
+ replicate_do_db => { hdr => 'Do DB', num => 0, label => 'Replicate-do-db setting' },
+ replicate_do_table => { hdr => 'Do Table', num => 0, label => 'Replicate-do-table setting' },
+ replicate_ignore_db => { hdr => 'Ignore DB', num => 0, label => 'Replicate-ignore-db setting' },
+ replicate_ignore_table => { hdr => 'Ignore Table', num => 0, label => 'Replicate-do-table setting' },
+ replicate_wild_do_table => { hdr => 'Wild Do Table', num => 0, label => 'Replicate-wild-do-table setting' },
+ replicate_wild_ignore_table => { hdr => 'Wild Ignore Table', num => 0, label => 'Replicate-wild-ignore-table setting' },
+ request_type => { hdr => 'Type', num => 0, label => 'Type of lock the thread waits for' },
+ reservation_count => { hdr => 'ResCnt', num => 1, label => 'Reservation Count' },
+ retrieved_gtid_set => { hdr => 'Retrieved GTID Set', num => 0, label => 'Retrieved GTID Set', },
+ row_locks => { hdr => 'RLocks', num => 1, label => 'Number of row locks' },
+ rows_changed => { hdr => 'Changed', num => 1, label => 'Number of rows changed' },
+ rows_changed_x_indexes => { hdr => 'Chg X Idx', num => 1, label => 'Number of rows changed X indexes' },
+ rows_read => { hdr => 'Reads', num => 1, label => 'Number of rows read' },
+ rows_read_from_indexes => { hdr => 'Reads Via Idx', num => 1, label => 'Number of rows read from indexes' },
+ run => { hdr => 'Run', num => 1, label => 'Threads_running' },
+ rw_excl_os_waits => { hdr => 'RW Waits', num => 1, label => 'R/W Excl. OS Waits' },
+ rw_excl_spins => { hdr => 'RW Spins', num => 1, label => 'R/W Excl. Spins' },
+ rw_shared_os_waits => { hdr => 'Sh Waits', num => 1, label => 'R/W Shared OS Waits' },
+ rw_shared_spins => { hdr => 'Sh Spins', num => 1, label => 'R/W Shared Spins' },
+ spark_qps => { hdr => 'QPS', num => 0, label => 'QPS Sparkline' },
+ spark_run => { hdr => 'Run', num => 0, label => 'Threads_running Sparkline' },
+ scan_type => { hdr => 'Type', num => 0, label => 'Scan type in chosen' },
+ seg_size => { hdr => 'Seg. Size', num => 1, label => 'Segment size' },
+ select_type => { hdr => 'Select Type', num => 0, label => 'Type of select used' },
+ server_uuid => { hdr => 'Server UUID', num => 0, label => 'Server UUID', },
+ signal_count => { hdr => 'Signals', num => 1, label => 'Signal Count' },
+ size => { hdr => 'Size', num => 1, label => 'Size of the tablespace' },
+ skip_counter => { hdr => 'Skip Counter', num => 1, label => 'Skip counter' },
+ slave_catchup_rate => { hdr => 'Catchup', num => 1, label => 'How fast the slave is catching up in the binlog' },
+ slave_io_running => { hdr => 'Slave-IO', num => 0, label => 'Whether the slave I/O thread is running' },
+ slave_io_state => { hdr => 'Slave IO State', num => 0, label => 'Slave I/O thread state' },
+ slave_open_temp_tables => { hdr => 'Temp', num => 1, label => 'Slave open temp tables' },
+ slave_running => { hdr => 'Repl', num => 0, label => 'Slave running' },
+ slave_sql_running => { hdr => 'Slave-SQL', num => 0, label => 'Whether the slave SQL thread is running' },
+ sort_time => { hdr => 'SortTimeLag', num => 1, label => 'Time slave lags master sort' },
+ slow => { hdr => 'Slow', num => 1, label => 'How many slow queries', },
+ space_id => { hdr => 'Space', num => 1, label => 'Tablespace ID' },
+ special => { hdr => 'Special', num => 0, label => 'Special/Other info' },
+ state => { hdr => 'State', num => 0, label => 'Connection state', maxw => 18, },
+ tables_in_use => { hdr => 'Tbl Used', num => 1, label => 'Number of tables in use' },
+ tables_locked => { hdr => 'Tbl Lck', num => 1, label => 'Number of tables locked' },
+ tbl => { hdr => 'Table', num => 0, label => 'Table', },
+ thread => { hdr => 'Thread', num => 1, label => 'Thread number' },
+ thread_decl_inside => { hdr => 'Thread Inside', num => 0, label => 'What the thread is declared inside' },
+ thread_purpose => { hdr => 'Purpose', num => 0, label => "The thread's purpose" },
+ thread_status => { hdr => 'Thread Status', num => 0, label => 'The thread status' },
+ time => { hdr => 'Time', num => 1, label => 'Time since the last event', },
+ time_behind_master => { hdr => 'TimeLag', num => 1, label => 'Time slave lags master' },
+ timestring => { hdr => 'Timestring', num => 0, label => 'Time the event occurred' },
+ total => { hdr => 'Total', num => 1, label => 'Total' },
+ total_mem_alloc => { hdr => 'Memory', num => 1, label => 'Total memory allocated' },
+ truncates => { hdr => 'Trunc', num => 0, label => 'Whether the deadlock is truncating InnoDB status' },
+ txn_doesnt_see_ge => { hdr => "Txn Won't See", num => 0, label => 'Where txn read view is limited' },
+ txn_id => { hdr => 'ID', num => 0, label => 'Transaction ID' },
+ txn_sees_lt => { hdr => 'Txn Sees', num => 1, label => 'Where txn read view is limited' },
+ txn_status => { hdr => 'Txn Status', num => 0, label => 'Transaction status' },
+ txn_time_remain => { hdr => 'Remaining', num => 1, label => 'Time until txn rollback/commit completes' },
+ undo_log_entries => { hdr => 'Undo', num => 1, label => 'Number of undo log entries' },
+ undo_for => { hdr => 'Undo', num => 0, label => 'Undo for' },
+ until_condition => { hdr => 'Until Condition', num => 0, label => 'Slave until condition' },
+ until_log_file => { hdr => 'Until Log File', num => 0, label => 'Slave until log file' },
+ uptime => { hdr => 'Uptime', num => 1, label => 'Uptime' },
+ until_log_pos => { hdr => 'Until Log Pos', num => 1, label => 'Slave until log position' },
+ used_cells => { hdr => 'Cells Used', num => 1, label => 'Number of cells used' },
+ used_bufs => { hdr => 'Used Bufs', num => 1, label => 'Number of buffer pool pages used' },
+ user => { hdr => 'User', num => 0, label => 'Database username', },
+ value => { hdr => 'Value', num => 1, label => 'Value' },
+ versions => { hdr => 'Versions', num => 1, label => 'Number of InnoDB MVCC versions unpurged' },
+ victim => { hdr => 'Victim', num => 0, label => 'Whether this txn was the deadlock victim' },
+ wait_array_size => { hdr => 'Wait Array Size', num => 1, label => 'Wait Array Size' },
+ wait_status => { hdr => 'Lock Status', num => 0, label => 'Status of txn locks' },
+ waited_at_filename => { hdr => 'File', num => 0, label => 'Filename at which thread waits' },
+ waited_at_line => { hdr => 'Line', num => 1, label => 'Line at which thread waits' },
+ waiters_flag => { hdr => 'Waiters', num => 1, label => 'Waiters Flag' },
+ waiting => { hdr => 'Waiting', num => 1, label => 'Whether lock is being waited for' },
+ waiting_thread => { hdr => 'WThread', num => 1, label => 'Waiting thread' },
+ waiting_query => { hdr => 'Waiting Query', num => 0, label => 'Waiting query' },
+ waiting_rows_modified => { hdr => 'WRowsMod', num => 1, label => 'Waiting number rows modified' },
+ waiting_age => { hdr => 'WAge', num => 1, label => 'Waiting age' },
+ waiting_wait_secs => { hdr => 'WWait', num => 1, label => 'Waiting wait time' },
+ waiting_user => { hdr => 'WUser', num => 0, label => 'Waiting user' },
+ waiting_host => { hdr => 'WHost', num => 0, label => 'Waiting host' },
+ waiting_db => { hdr => 'WDB', num => 0, label => 'Waiting database' },
+ when => { hdr => 'When', num => 0, label => 'Time scale' },
+ writer_lock_mode => { hdr => 'Wrtr Lck Mode', num => 0, label => 'Writer lock mode' },
+ writer_thread => { hdr => 'Wrtr Thread', num => 1, label => 'Writer thread ID' },
+ writes_pending => { hdr => 'Writes', num => 1, label => 'Number of writes pending' },
+ writes_pending_flush_list => { hdr => 'Flush List Writes', num => 1, label => 'Number of flush list writes pending' },
+ writes_pending_lru => { hdr => 'LRU Writes', num => 1, label => 'Number of LRU writes pending' },
+ writes_pending_single_page => { hdr => '1-Page Writes', num => 1, label => 'Number of 1-page writes pending' },
+);
+
+# Apply a default property or three. By default, columns are not width-constrained,
+# aligned left, and sorted alphabetically, not numerically.
+foreach my $col ( values %columns ) {
+ map { $col->{$_} ||= 0 } qw(num minw maxw);
+ $col->{just} = $col->{num} ? '' : '-';
+}
+
+# Filters {{{3
+# This hash defines every filter that can be applied to a table. These
+# become part of tbl_meta as well. Each filter is just an expression that
+# returns true or false.
+# Properties of each entry:
+# * func: the subroutine
+# * name: the name, repeated
+# * user: whether it's a user-defined filter (saved in config)
+# * text: text of the subroutine
+# * note: explanation
+my %filters = ();
+
+# These are pre-processed to live in %filters above, by compiling them.
+my %builtin_filters = (
+ hide_self => {
+ text => <<' END',
+ return ( ($set->{info} || '') !~ m#/\*innotop\*/# );
+ END
+ note => 'Removes the innotop processes from the list',
+ tbls => [qw(innodb_transactions processlist)],
+ },
+ hide_inactive => {
+ text => <<' END',
+ return ( !defined($set->{txn_status}) || $set->{txn_status} ne 'not started' )
+ && ( !defined($set->{cmd}) || $set->{cmd} !~ m/Sleep|Binlog Dump/ )
+ && ( !defined($set->{state}) || $set->{state} !~ m/^handlersocket/ )
+ && ( !defined($set->{info}) || $set->{info} =~ m/\S/ );
+ END
+ note => 'Removes processes which are not doing anything',
+ tbls => [qw(innodb_transactions processlist)],
+ },
+ hide_connect => {
+ text => <<' END',
+ return ( !defined($set->{cmd}) || $set->{cmd} !~ m/Connect/ );
+ END
+ note => 'Removes the slave processes from the list',
+ tbls => [qw(processlist)],
+ },
+ hide_slave_io => {
+ text => <<' END',
+ return !$set->{state} || $set->{state} !~ m/^(?:Waiting for master|read all relay)/;
+ END
+ note => 'Removes slave I/O threads from the list',
+ tbls => [qw(processlist slave_io_status)],
+ },
+ hide_event => {
+ text => <<' END',
+ return (($set->{state} || '') !~ m/^Daemon/) || (($set->{info} || '') !~ m/\S/);
+ END
+ note => 'Removes idle event threads from the list',
+ tbls => [qw(processlist)],
+ },
+ table_is_open => {
+ text => <<' END',
+ return $set->{num_times_open} + $set->{is_name_locked};
+ END
+ note => 'Removes tables that are not in use or locked',
+ tbls => [qw(open_tables)],
+ },
+ cxn_is_master => {
+ text => <<' END',
+ return $set->{master_file} ? 1 : 0;
+ END
+ note => 'Removes servers that are not masters',
+ tbls => [qw(master_status)],
+ },
+ cxn_is_slave => {
+ text => <<' END',
+ return $set->{master_host} ? 1 : 0;
+ END
+ note => 'Removes servers that are not slaves',
+ tbls => [qw(slave_io_status slave_sql_status)],
+ },
+ thd_is_not_waiting => {
+ text => <<' END',
+ return $set->{thread_status} !~ m#waiting for i/o request#;
+ END
+ note => 'Removes idle I/O threads',
+ tbls => [qw(io_threads)],
+ },
+);
+foreach my $key ( keys %builtin_filters ) {
+ my ( $sub, $err ) = compile_filter($builtin_filters{$key}->{text});
+ $filters{$key} = {
+ func => $sub,
+ text => $builtin_filters{$key}->{text},
+ user => 0,
+ name => $key, # useful for later
+ note => $builtin_filters{$key}->{note},
+ tbls => $builtin_filters{$key}->{tbls},
+ }
+}
+
+# Variable sets {{{3
+# Sets (arrayrefs) of variables that are used in S mode. They are read/written to
+# the config file.
+my %var_sets = (
+ general => {
+ text => join(
+ ', ',
+ 'set_precision(Questions/Uptime_hires) as QPS',
+ 'set_precision(Com_commit/Uptime_hires) as Commit_PS',
+ 'set_precision((Com_rollback||0)/(Com_commit||1)) as Rollback_Commit',
+ 'set_precision(('
+ . join('+', map { "($_||0)" }
+ qw(Com_delete Com_delete_multi Com_insert Com_insert_select Com_replace
+ Com_replace_select Com_select Com_update Com_update_multi))
+ . ')/(Com_commit||1)) as Write_Commit',
+ 'set_precision((Com_select+(Qcache_hits||0))/(('
+ . join('+', map { "($_||0)" }
+ qw(Com_delete Com_delete_multi Com_insert Com_insert_select Com_replace
+ Com_replace_select Com_select Com_update Com_update_multi))
+ . ')||1)) as R_W_Ratio',
+ 'set_precision(Opened_tables/Uptime_hires) as Opens_PS',
+ 'percent($cur->{Open_tables}/($cur->{table_cache})) as Table_Cache_Used',
+ 'set_precision(Threads_created/Uptime_hires) as Threads_PS',
+ 'percent($cur->{Threads_cached}/($cur->{thread_cache_size}||1)) as Thread_Cache_Used',
+ 'percent($cur->{Max_used_connections}/($cur->{max_connections}||1)) as CXN_Used_Ever',
+ 'percent($cur->{Threads_connected}/($cur->{max_connections}||1)) as CXN_Used_Now',
+ ),
+ },
+ commands => {
+ text => join(
+ ', ',
+ qw(Uptime Questions Com_delete Com_delete_multi Com_insert
+ Com_insert_select Com_replace Com_replace_select Com_select Com_update
+ Com_update_multi)
+ ),
+ },
+ query_status => {
+ text => join(
+ ',',
+ qw( Uptime Select_full_join Select_full_range_join Select_range
+ Select_range_check Select_scan Slow_queries Sort_merge_passes
+ Sort_range Sort_rows Sort_scan)
+ ),
+ },
+ innodb => {
+ text => join(
+ ',',
+ qw( Uptime Innodb_row_lock_current_waits Innodb_row_lock_time
+ Innodb_row_lock_time_avg Innodb_row_lock_time_max Innodb_row_lock_waits
+ Innodb_rows_deleted Innodb_rows_inserted Innodb_rows_read
+ Innodb_rows_updated)
+ ),
+ },
+ txn => {
+ text => join(
+ ',',
+ qw( Uptime Com_begin Com_commit Com_rollback Com_savepoint
+ Com_xa_commit Com_xa_end Com_xa_prepare Com_xa_recover Com_xa_rollback
+ Com_xa_start)
+ ),
+ },
+ key_cache => {
+ text => join(
+ ',',
+ qw( Uptime Key_blocks_not_flushed Key_blocks_unused Key_blocks_used
+ Key_read_requests Key_reads Key_write_requests Key_writes )
+ ),
+ },
+ query_cache => {
+ text => join(
+ ',',
+ "percent($exprs{QcacheHitRatio}) as Hit_Pct",
+ 'set_precision((Qcache_hits||0)/(Qcache_inserts||1)) as Hit_Ins',
+ 'set_precision((Qcache_lowmem_prunes||0)/Uptime_hires) as Lowmem_Prunes_sec',
+ 'percent(1-((Qcache_free_blocks||0)/(Qcache_total_blocks||1))) as Blocks_used',
+ qw( Qcache_free_blocks Qcache_free_memory Qcache_not_cached Qcache_queries_in_cache)
+ ),
+ },
+ handler => {
+ text => join(
+ ',',
+ qw( Uptime Handler_read_key Handler_read_first Handler_read_next
+ Handler_read_prev Handler_read_rnd Handler_read_rnd_next Handler_delete
+ Handler_update Handler_write)
+ ),
+ },
+ cxns_files_threads => {
+ text => join(
+ ',',
+ qw( Uptime Aborted_clients Aborted_connects Bytes_received Bytes_sent
+ Compression Connections Created_tmp_disk_tables Created_tmp_files
+ Created_tmp_tables Max_used_connections Open_files Open_streams
+ Open_tables Opened_tables Table_locks_immediate Table_locks_waited
+ Threads_cached Threads_connected Threads_created Threads_running)
+ ),
+ },
+ prep_stmt => {
+ text => join(
+ ',',
+ qw( Uptime Com_dealloc_sql Com_execute_sql Com_prepare_sql Com_reset
+ Com_stmt_close Com_stmt_execute Com_stmt_fetch Com_stmt_prepare
+ Com_stmt_reset Com_stmt_send_long_data )
+ ),
+ },
+ innodb_health => {
+ text => join(
+ ',',
+ "$exprs{OldVersions} as OldVersions",
+ qw(IB_sm_mutex_spin_waits IB_sm_mutex_spin_rounds IB_sm_mutex_os_waits),
+ "$exprs{NumTxns} as NumTxns",
+ "$exprs{MaxTxnTime} as MaxTxnTime",
+ qw(IB_ro_queries_inside IB_ro_queries_in_queue),
+ "set_precision($exprs{DirtyBufs} * 100) as dirty_bufs",
+ "set_precision($exprs{BufPoolFill} * 100) as buf_fill",
+ qw(IB_bp_pages_total IB_bp_pages_read IB_bp_pages_written IB_bp_pages_created)
+ ),
+ },
+ innodb_health2 => {
+ text => join(
+ ', ',
+ 'percent(1-((Innodb_buffer_pool_pages_free||0)/($cur->{Innodb_buffer_pool_pages_total}||1))) as BP_page_cache_usage',
+ 'percent(1-((Innodb_buffer_pool_reads||0)/(Innodb_buffer_pool_read_requests||1))) as BP_cache_hit_ratio',
+ 'Innodb_buffer_pool_wait_free',
+ 'Innodb_log_waits',
+ ),
+ },
+ slow_queries => {
+ text => join(
+ ', ',
+ 'set_precision(Slow_queries/Uptime_hires) as Slow_PS',
+ 'set_precision(Select_full_join/Uptime_hires) as Full_Join_PS',
+ 'percent(Select_full_join/(Com_select||1)) as Full_Join_Ratio',
+ ),
+ },
+);
+
+# Server sets {{{3
+# Defines sets of servers between which the user can quickly switch.
+my %server_groups;
+
+# Connections {{{3
+# This hash defines server connections. Each connection is a string that can be passed to
+# the DBI connection. These are saved in the connections section in the config file.
+my %connections;
+# Defines the parts of connections.
+my @conn_parts = qw(user have_user pass have_pass dsn savepass dl_table);
+
+# Graph widths {{{3
+# This hash defines the max values seen for various status/variable values, for graphing.
+# These are stored in their own section in the config file. These are just initial values:
+my %mvs = (
+ Com_select => 50,
+ Com_insert => 50,
+ Com_update => 50,
+ Com_delete => 50,
+ Questions => 100,
+);
+
+# ###########################################################################
+# Valid Term::ANSIColor color strings.
+# ###########################################################################
+my %ansicolors = map { $_ => 1 }
+ qw( black blink blue bold clear concealed cyan dark green magenta on_black
+ on_blue on_cyan on_green on_magenta on_red on_white on_yellow red reset
+ reverse underline underscore white yellow);
+
+# ###########################################################################
+# Valid comparison operators for color rules
+# ###########################################################################
+my %comp_ops = (
+ '==' => 'Numeric equality',
+ '>' => 'Numeric greater-than',
+ '<' => 'Numeric less-than',
+ '>=' => 'Numeric greater-than/equal',
+ '<=' => 'Numeric less-than/equal',
+ '!=' => 'Numeric not-equal',
+ 'eq' => 'String equality',
+ 'gt' => 'String greater-than',
+ 'lt' => 'String less-than',
+ 'ge' => 'String greater-than/equal',
+ 'le' => 'String less-than/equal',
+ 'ne' => 'String not-equal',
+ '=~' => 'Pattern match',
+ '!~' => 'Negated pattern match',
+);
+
+# ###########################################################################
+# Valid aggregate functions.
+# ###########################################################################
+my %agg_funcs = (
+ first => sub {
+ return $_[0]
+ },
+ count => sub {
+ return 0 + @_;
+ },
+ avg => sub {
+ my @args = grep { defined $_ } @_;
+ return (sum(map { m/([\d\.-]+)/g } @args) || 0) / (scalar(@args) || 1);
+ },
+ sum => sub {
+ my @args = grep { defined $_ } @_;
+ return sum(@args);
+ }
+);
+
+# ###########################################################################
+# Valid functions for transformations.
+# ###########################################################################
+my %trans_funcs = (
+ shorten => \&shorten,
+ secs_to_time => \&secs_to_time,
+ distill => \&distill,
+ no_ctrl_char => \&no_ctrl_char,
+ percent => \&percent,
+ commify => \&commify,
+ dulint_to_int => \&dulint_to_int,
+ set_precision => \&set_precision,
+ fuzzy_time => \&fuzzy_time,
+);
+
+# Table definitions {{{3
+# This hash defines every table that can get displayed in every mode. Each
+# table specifies columns and column data sources. The column is
+# defined by the %columns hash.
+#
+# Example: foo => { src => 'bar' } means the foo column (look at
+# $columns{foo} for its definition) gets its data from the 'bar' element of
+# the current data set, whatever that is.
+#
+# These columns are post-processed after being defined, because they get stuff
+# from %columns. After all the config is loaded for columns, there's more
+# post-processing too; the subroutines compiled from src get added to
+# the hash elements for extract_values to use.
+# ###########################################################################
+
+my %tbl_meta = (
+ adaptive_hash_index => {
+ capt => 'Adaptive Hash Index',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ hash_table_size => { src => 'IB_ib_hash_table_size', trans => [qw(shorten)], },
+ used_cells => { src => 'IB_ib_used_cells' },
+ bufs_in_node_heap => { src => 'IB_ib_bufs_in_node_heap' },
+ hash_searches_s => { src => 'IB_ib_hash_searches_s' },
+ non_hash_searches_s => { src => 'IB_ib_non_hash_searches_s' },
+ },
+ visible => [ qw(cxn hash_table_size used_cells bufs_in_node_heap hash_searches_s non_hash_searches_s) ],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'ib',
+ group_by => [],
+ aggregate => 0,
+ },
+ buffer_pool => {
+ capt => 'Buffer Pool',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ total_mem_alloc => { src => 'IB_bp_total_mem_alloc', trans => [qw(shorten)], },
+ awe_mem_alloc => { src => 'IB_bp_awe_mem_alloc', trans => [qw(shorten)], },
+ add_pool_alloc => { src => 'IB_bp_add_pool_alloc', trans => [qw(shorten)], },
+ buf_pool_size => { src => 'IB_bp_buf_pool_size', trans => [qw(shorten)], },
+ buf_free => { src => 'IB_bp_buf_free' },
+ buf_pool_hit_rate => { src => 'IB_bp_buf_pool_hit_rate' },
+ buf_pool_reads => { src => 'IB_bp_buf_pool_reads' },
+ buf_pool_hits => { src => 'IB_bp_buf_pool_hits' },
+ dict_mem_alloc => { src => 'IB_bp_dict_mem_alloc' },
+ pages_total => { src => 'IB_bp_pages_total' },
+ pages_modified => { src => 'IB_bp_pages_modified' },
+ reads_pending => { src => 'IB_bp_reads_pending' },
+ writes_pending => { src => 'IB_bp_writes_pending' },
+ writes_pending_lru => { src => 'IB_bp_writes_pending_lru' },
+ writes_pending_flush_list => { src => 'IB_bp_writes_pending_flush_list' },
+ writes_pending_single_page => { src => 'IB_bp_writes_pending_single_page' },
+ page_creates_sec => { src => 'IB_bp_page_creates_sec' },
+ page_reads_sec => { src => 'IB_bp_page_reads_sec' },
+ page_writes_sec => { src => 'IB_bp_page_writes_sec' },
+ pages_created => { src => 'IB_bp_pages_created' },
+ pages_read => { src => 'IB_bp_pages_read' },
+ pages_written => { src => 'IB_bp_pages_written' },
+ },
+ visible => [ qw(cxn buf_pool_size buf_free pages_total pages_modified buf_pool_hit_rate total_mem_alloc add_pool_alloc)],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'bp',
+ group_by => [],
+ aggregate => 0,
+ },
+ # TODO: a new step in set_to_tbl: join result to itself, grouped?
+ # TODO: this would also enable pulling Q and T data together.
+ # TODO: using a SQL-ish language would also allow pivots to be easier -- treat the pivoted data as a view and SELECT from it.
+ cmd_summary => {
+ capt => 'Command Summary',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ name => { src => 'name' },
+ total => { src => 'total' },
+ value => { src => 'value', agg => 'sum'},
+ pct => { src => 'value/total', trans => [qw(percent)] },
+ last_total => { src => 'last_total' },
+ last_value => { src => 'last_value', agg => 'sum'},
+ last_pct => { src => 'last_value/last_total', trans => [qw(percent)] },
+ },
+ visible => [qw(cxn name value pct last_value last_pct)],
+ filters => [qw()],
+ sort_cols => '-value',
+ sort_dir => '1',
+ innodb => '',
+ group_by => [qw(name)],
+ aggregate => 1,
+ },
+ deadlock_locks => {
+ capt => 'Deadlock Locks',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ mysql_thread_id => { src => 'mysql_thread_id' },
+ dl_txn_num => { src => 'dl_txn_num' },
+ lock_type => { src => 'lock_type' },
+ space_id => { src => 'space_id' },
+ page_no => { src => 'page_no' },
+ heap_no => { src => 'heap_no' },
+ n_bits => { src => 'n_bits' },
+ index => { src => 'index' },
+ db => { src => 'db' },
+ tbl => { src => 'table' },
+ lock_mode => { src => 'lock_mode' },
+ special => { src => 'special' },
+ insert_intention => { src => 'insert_intention' },
+ waiting => { src => 'waiting' },
+ },
+ visible => [ qw(cxn mysql_thread_id waiting lock_mode db tbl index special insert_intention)],
+ filters => [],
+ sort_cols => 'cxn mysql_thread_id',
+ sort_dir => '1',
+ innodb => 'dl',
+ group_by => [],
+ aggregate => 0,
+ },
+ deadlock_transactions => {
+ capt => 'Deadlock Transactions',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ active_secs => { src => 'active_secs' },
+ dl_txn_num => { src => 'dl_txn_num' },
+ has_read_view => { src => 'has_read_view' },
+ heap_size => { src => 'heap_size' },
+ host_and_domain => { src => 'hostname' },
+ hostname => { src => $exprs{Host} },
+ ip => { src => 'ip' },
+ lock_structs => { src => 'lock_structs' },
+ lock_wait_time => { src => 'lock_wait_time', trans => [ qw(secs_to_time) ] },
+ mysql_thread_id => { src => 'mysql_thread_id' },
+ os_thread_id => { src => 'os_thread_id' },
+ proc_no => { src => 'proc_no' },
+ query_id => { src => 'query_id' },
+ query_status => { src => 'query_status' },
+ query_text => { src => 'query_text', trans => [ qw(no_ctrl_char) ] },
+ row_locks => { src => 'row_locks' },
+ tables_in_use => { src => 'tables_in_use' },
+ tables_locked => { src => 'tables_locked' },
+ thread_decl_inside => { src => 'thread_decl_inside' },
+ thread_status => { src => 'thread_status' },
+ 'time' => { src => 'active_secs', trans => [ qw(secs_to_time) ] },
+ timestring => { src => 'timestring' },
+ txn_doesnt_see_ge => { src => 'txn_doesnt_see_ge' },
+ txn_id => { src => 'txn_id' },
+ txn_sees_lt => { src => 'txn_sees_lt' },
+ txn_status => { src => 'txn_status' },
+ truncates => { src => 'truncates' },
+ undo_log_entries => { src => 'undo_log_entries' },
+ user => { src => 'user' },
+ victim => { src => 'victim' },
+ wait_status => { src => 'lock_wait_status' },
+ },
+ visible => [ qw(cxn mysql_thread_id timestring user hostname victim time undo_log_entries lock_structs query_text)],
+ filters => [],
+ sort_cols => 'cxn mysql_thread_id',
+ sort_dir => '1',
+ innodb => 'dl',
+ group_by => [],
+ aggregate => 0,
+ },
+ explain => {
+ capt => 'EXPLAIN Results',
+ cust => {},
+ cols => {
+ part_id => { src => 'id' },
+ select_type => { src => 'select_type' },
+ tbl => { src => 'table' },
+ partitions => { src => 'partitions' },
+ scan_type => { src => 'type' },
+ possible_keys => { src => 'possible_keys' },
+ index => { src => 'key' },
+ key_len => { src => 'key_len' },
+ index_ref => { src => 'ref' },
+ num_rows => { src => 'rows' },
+ special => { src => 'extra' },
+ },
+ visible => [ qw(select_type tbl partitions scan_type possible_keys index key_len index_ref num_rows special)],
+ filters => [],
+ sort_cols => '',
+ sort_dir => '1',
+ innodb => '',
+ group_by => [],
+ aggregate => 0,
+ },
+ file_io_misc => {
+ capt => 'File I/O Misc',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ io_bytes_s => { src => 'IB_io_avg_bytes_s' },
+ io_flush_type => { src => 'IB_io_flush_type' },
+ io_fsyncs_s => { src => 'IB_io_fsyncs_s' },
+ io_reads_s => { src => 'IB_io_reads_s' },
+ io_writes_s => { src => 'IB_io_writes_s' },
+ os_file_reads => { src => 'IB_io_os_file_reads' },
+ os_file_writes => { src => 'IB_io_os_file_writes' },
+ os_fsyncs => { src => 'IB_io_os_fsyncs' },
+ },
+ visible => [ qw(cxn os_file_reads os_file_writes os_fsyncs io_reads_s io_writes_s io_bytes_s)],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'io',
+ group_by => [],
+ aggregate => 0,
+ },
+ fk_error => {
+ capt => 'Foreign Key Error Info',
+ cust => {},
+ cols => {
+ timestring => { src => 'IB_fk_timestring' },
+ child_db => { src => 'IB_fk_child_db' },
+ child_table => { src => 'IB_fk_child_table' },
+ child_index => { src => 'IB_fk_child_index' },
+ fk_name => { src => 'IB_fk_fk_name' },
+ parent_db => { src => 'IB_fk_parent_db' },
+ parent_table => { src => 'IB_fk_parent_table' },
+ parent_col => { src => 'IB_fk_parent_col' },
+ parent_index => { src => 'IB_fk_parent_index' },
+ attempted_op => { src => 'IB_fk_attempted_op' },
+ },
+ visible => [ qw(timestring child_db child_table child_index parent_db parent_table parent_col parent_index fk_name attempted_op)],
+ filters => [],
+ sort_cols => '',
+ sort_dir => '1',
+ innodb => 'fk',
+ group_by => [],
+ aggregate => 0,
+ },
+ index_statistics => {
+ capt => 'Data from INDEX_STATISTICS',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn', minw => 6, maxw => 10 },
+ db => { src => 'table_schema' },
+ tbl => { src => 'table_name' },
+ index => { src => 'index_name' },
+ rows_read => { src => 'rows_read', agg => 'sum' },
+ },
+ visible => [ qw(cxn db tbl index rows_read) ],
+ filters => [ ],
+ sort_cols => 'rows_read',
+ sort_dir => '-1',
+ innodb => '',
+ colors => [],
+ hide_caption => 1,
+ group_by => [qw(cxn db tbl)],
+ aggregate => 0,
+ },
+ index_table_statistics => {
+ capt => 'Data from {TABLE,INDEX}_STATISTICS',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn', minw => 6, maxw => 10 },
+ db => { src => 'table_schema' },
+ tbl => { src => 'table_name' },
+ index => { src => 'index_name' },
+ rows_read => { src => 'rows_read' },
+ rows_read_from_indexes => { src => 'rows_read_from_indexes' },
+ rows_changed => { src => 'rows_changed' },
+ rows_changed_x_indexes => { src => 'rows_changed_x_indexes' },
+ },
+ visible => [ qw(cxn db tbl rows_read rows_read_from_indexes rows_changed rows_changed_x_indexes) ],
+ filters => [ ],
+ sort_cols => 'rows_read',
+ sort_dir => '-1',
+ innodb => '',
+ colors => [],
+ hide_caption => 1,
+ group_by => [qw(cxn db tbl)],
+ aggregate => 0,
+ },
+ insert_buffers => {
+ capt => 'Insert Buffers',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ inserts => { src => 'IB_ib_inserts' },
+ merged_recs => { src => 'IB_ib_merged_recs' },
+ merges => { src => 'IB_ib_merges' },
+ size => { src => 'IB_ib_size' },
+ free_list_len => { src => 'IB_ib_free_list_len' },
+ seg_size => { src => 'IB_ib_seg_size' },
+ },
+ visible => [ qw(cxn inserts merged_recs merges size free_list_len seg_size)],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'ib',
+ group_by => [],
+ aggregate => 0,
+ },
+ innodb_blocked_blocker => {
+ capt => 'InnoDB Blocked/Blocking',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ waiting_thread => { src => 'waiting_thread' },
+ waiting_query => { src => 'waiting_query', trans => [qw(distill)] },
+ waiting_rows_modified => { src => 'waiting_rows_modified' },
+ waiting_age => { src => 'waiting_age', trans => [qw(fuzzy_time)] },
+ waiting_wait_secs => { src => 'waiting_wait_secs', trans => [qw(fuzzy_time)] },
+ waiting_user => { src => 'waiting_user' },
+ waiting_host => { src => 'waiting_host' },
+ waiting_db => { src => 'waiting_db' },
+ blocking_thread => { src => 'blocking_thread' },
+ blocking_query => { src => 'blocking_query', trans => [qw(distill)] },
+ blocking_rows_modified => { src => 'blocking_rows_modified' },
+ blocking_age => { src => 'blocking_age', trans => [qw(fuzzy_time)] },
+ blocking_wait_secs => { src => 'blocking_wait_secs', trans => [qw(fuzzy_time)] },
+ blocking_user => { src => 'blocking_user' },
+ blocking_host => { src => 'blocking_host' },
+ blocking_db => { src => 'blocking_db' },
+ blocking_status => { src => 'blocking_status' },
+ lock_info => { src => 'lock_info' },
+ },
+ visible => [ qw(cxn waiting_thread waiting_query waiting_wait_secs
+ blocking_thread blocking_rows_modified blocking_age blocking_wait_secs
+ blocking_status blocking_query)],
+ filters => [],
+ sort_cols => 'cxn -waiting_wait_secs',
+ sort_dir => '1',
+ innodb => 'tx',
+ colors => [
+ ],
+ group_by => [],
+ aggregate => 0,
+ hide_caption => 1,
+ },
+ innodb_locks => {
+ capt => 'InnoDB Locks',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ db => { src => 'db' },
+ index => { src => 'index' },
+ insert_intention => { src => 'insert_intention' },
+ lock_mode => { src => 'lock_mode' },
+ lock_type => { src => 'lock_type' },
+ lock_wait_time => { src => 'lock_wait_time', trans => [ qw(secs_to_time) ] },
+ mysql_thread_id => { src => 'mysql_thread_id' },
+ n_bits => { src => 'n_bits' },
+ page_no => { src => 'page_no' },
+ space_id => { src => 'space_id' },
+ special => { src => 'special' },
+ tbl => { src => 'table' },
+ 'time' => { src => 'active_secs', hdr => 'Active', trans => [ qw(secs_to_time) ] },
+ txn_id => { src => 'txn_id' },
+ waiting => { src => 'waiting' },
+ },
+ visible => [ qw(cxn mysql_thread_id lock_type waiting lock_wait_time time lock_mode db tbl index insert_intention special)],
+ filters => [],
+ sort_cols => 'cxn -lock_wait_time',
+ sort_dir => '1',
+ innodb => 'tx',
+ colors => [
+ { col => 'lock_wait_time', op => '>', arg => 60, color => 'red' },
+ { col => 'lock_wait_time', op => '>', arg => 30, color => 'yellow' },
+ { col => 'lock_wait_time', op => '>', arg => 10, color => 'green' },
+ ],
+ group_by => [],
+ aggregate => 0,
+ },
+ innodb_transactions => {
+ capt => 'InnoDB Transactions',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ active_secs => { src => 'active_secs' },
+ has_read_view => { src => 'has_read_view' },
+ heap_size => { src => 'heap_size' },
+ hostname => { src => $exprs{Host} },
+ ip => { src => 'ip' },
+ wait_status => { src => 'lock_wait_status' },
+ lock_wait_time => { src => 'lock_wait_time', trans => [ qw(secs_to_time) ] },
+ lock_structs => { src => 'lock_structs' },
+ mysql_thread_id => { src => 'mysql_thread_id' },
+ os_thread_id => { src => 'os_thread_id' },
+ proc_no => { src => 'proc_no' },
+ query_id => { src => 'query_id' },
+ query_status => { src => 'query_status' },
+ query_text => { src => 'query_text', trans => [ qw(no_ctrl_char) ] },
+ txn_time_remain => { src => $exprs{TxnTimeRemain}, trans => [ qw(secs_to_time) ] },
+ row_locks => { src => 'row_locks' },
+ tables_in_use => { src => 'tables_in_use' },
+ tables_locked => { src => 'tables_locked' },
+ thread_decl_inside => { src => 'thread_decl_inside' },
+ thread_status => { src => 'thread_status' },
+ 'time' => { src => 'active_secs', trans => [ qw(secs_to_time) ], agg => 'sum' },
+ txn_doesnt_see_ge => { src => 'txn_doesnt_see_ge' },
+ txn_id => { src => 'txn_id' },
+ txn_sees_lt => { src => 'txn_sees_lt' },
+ txn_status => { src => 'txn_status', minw => 10, maxw => 10 },
+ undo_log_entries => { src => 'undo_log_entries' },
+ user => { src => 'user', maxw => 10 },
+ cnt => { src => 'mysql_thread_id', minw => 0 },
+ },
+ visible => [ qw(cxn cnt mysql_thread_id user hostname txn_status time undo_log_entries query_text)],
+ filters => [ qw( hide_self hide_inactive ) ],
+ sort_cols => '-active_secs txn_status cxn mysql_thread_id',
+ sort_dir => '1',
+ innodb => 'tx',
+ hide_caption => 1,
+ colors => [
+ { col => 'wait_status', op => 'eq', arg => 'LOCK WAIT', color => 'black on_red' },
+ { col => 'time', op => '>', arg => 600, color => 'red' },
+ { col => 'time', op => '>', arg => 300, color => 'yellow' },
+ { col => 'time', op => '>', arg => 60, color => 'green' },
+ { col => 'time', op => '>', arg => 30, color => 'cyan' },
+ { col => 'txn_status', op => 'eq', arg => 'not started', color => 'white' },
+ ],
+ group_by => [ qw(cxn txn_status) ],
+ aggregate => 0,
+ },
+ io_threads => {
+ capt => 'I/O Threads',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ thread => { src => 'thread' },
+ thread_purpose => { src => 'purpose' },
+ event_set => { src => 'event_set' },
+ thread_status => { src => 'state' },
+ },
+ visible => [ qw(cxn thread thread_purpose thread_status)],
+ filters => [ qw() ],
+ sort_cols => 'cxn thread',
+ sort_dir => '1',
+ innodb => 'io',
+ group_by => [],
+ aggregate => 0,
+ },
+ log_statistics => {
+ capt => 'Log Statistics',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ last_chkp => { src => 'IB_lg_last_chkp' },
+ log_flushed_to => { src => 'IB_lg_log_flushed_to' },
+ log_ios_done => { src => 'IB_lg_log_ios_done' },
+ log_ios_s => { src => 'IB_lg_log_ios_s' },
+ log_seq_no => { src => 'IB_lg_log_seq_no' },
+ pending_chkp_writes => { src => 'IB_lg_pending_chkp_writes' },
+ pending_log_writes => { src => 'IB_lg_pending_log_writes' },
+ },
+ visible => [ qw(cxn log_seq_no log_flushed_to last_chkp log_ios_done log_ios_s)],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'lg',
+ group_by => [],
+ aggregate => 0,
+ },
+ master_status => {
+ capt => 'Master Status',
+ cust => {},
+ cols => {
+ cxn => { src => $exprs{chcxn_2_cxn}, hdr => 'CXN' },
+ binlog_do_db => { src => 'binlog_do_db' },
+ binlog_ignore_db => { src => 'binlog_ignore_db' },
+ master_file => { src => 'file' },
+ master_pos => { src => 'position' },
+ binlog_cache_overflow => { src => '(Binlog_cache_disk_use||0)/(Binlog_cache_use||1)', trans => [ qw(percent) ] },
+ executed_gtid_set => { src => '(executed_gtid_set||"N/A")' },
+ server_uuid => { src => '(server_uuid||"N/A")' },
+ channel_name => { src => $exprs{chcxn_2_ch}, hdr => 'Channel'},
+ },
+ visible => [ qw(cxn channel_name master_file master_pos binlog_cache_overflow executed_gtid_set server_uuid)],
+ filters => [ qw(cxn_is_master) ],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => '',
+ group_by => [qw(channel_name)],
+ aggregate => 0,
+ },
+ pending_io => {
+ capt => 'Pending I/O',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ p_normal_aio_reads => { src => 'IB_io_pending_normal_aio_reads' },
+ p_aio_writes => { src => 'IB_io_pending_aio_writes' },
+ p_ibuf_aio_reads => { src => 'IB_io_pending_ibuf_aio_reads' },
+ p_sync_ios => { src => 'IB_io_pending_sync_ios' },
+ p_buf_pool_flushes => { src => 'IB_io_pending_buffer_pool_flushes' },
+ p_log_flushes => { src => 'IB_io_pending_log_flushes' },
+ p_log_ios => { src => 'IB_io_pending_log_ios' },
+ p_preads => { src => 'IB_io_pending_preads' },
+ p_pwrites => { src => 'IB_io_pending_pwrites' },
+ },
+ visible => [ qw(cxn p_normal_aio_reads p_aio_writes p_ibuf_aio_reads p_sync_ios p_log_flushes p_log_ios)],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'io',
+ group_by => [],
+ aggregate => 0,
+ },
+ open_tables => {
+ capt => 'Open Tables',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ db => { src => 'database' },
+ tbl => { src => 'table' },
+ num_times_open => { src => 'in_use' },
+ is_name_locked => { src => 'name_locked' },
+ },
+ visible => [ qw(cxn db tbl num_times_open is_name_locked)],
+ filters => [ qw(table_is_open) ],
+ sort_cols => '-num_times_open cxn db tbl',
+ sort_dir => '1',
+ innodb => '',
+ group_by => [],
+ aggregate => 0,
+ },
+ page_statistics => {
+ capt => 'Page Statistics',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ pages_read => { src => 'IB_bp_pages_read' },
+ pages_written => { src => 'IB_bp_pages_written' },
+ pages_created => { src => 'IB_bp_pages_created' },
+ page_reads_sec => { src => 'IB_bp_page_reads_sec' },
+ page_writes_sec => { src => 'IB_bp_page_writes_sec' },
+ page_creates_sec => { src => 'IB_bp_page_creates_sec' },
+ },
+ visible => [ qw(cxn pages_read pages_written pages_created page_reads_sec page_writes_sec page_creates_sec)],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'bp',
+ group_by => [],
+ aggregate => 0,
+ },
+ processlist => {
+ capt => 'MySQL Process List',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn', minw => 6, maxw => 10 },
+ mysql_thread_id => { src => 'id', minw => 6, maxw => 0 },
+ user => { src => 'user', minw => 5, maxw => 8 },
+ hostname => { src => $exprs{Host}, minw => 7, maxw => 15, },
+ port => { src => $exprs{Port}, minw => 0, maxw => 0, },
+ host_and_port => { src => 'host', minw => 0, maxw => 0 },
+ db => { src => 'db', minw => 6, maxw => 12 },
+ cmd => { src => 'command', minw => 5, maxw => 0 },
+ time => { src => 'time', minw => 5, maxw => 0, trans => [ qw(secs_to_time) ], agg => 'sum' },
+ state => { src => 'state', minw => 0, maxw => 0 },
+ info => { src => 'info', minw => 0, maxw => 0, trans => [ qw(no_ctrl_char) ] },
+ cnt => { src => 'id', minw => 0, maxw => 0 },
+ },
+ visible => [ qw(cxn cmd cnt mysql_thread_id state user hostname db time info)],
+ filters => [ qw(hide_self hide_inactive hide_slave_io hide_event hide_connect) ],
+ sort_cols => '-time cxn hostname mysql_thread_id',
+ sort_dir => '1',
+ innodb => '',
+ hide_caption => 1,
+ colors => [
+ { col => 'state', op => 'eq', arg => 'Locked', color => 'black on_red' },
+ { col => 'cmd', op => 'eq', arg => 'Sleep', color => 'white' },
+ { col => 'user', op => 'eq', arg => 'system user', color => 'white' },
+ { col => 'cmd', op => 'eq', arg => 'Connect', color => 'white' },
+ { col => 'cmd', op => 'eq', arg => 'Binlog Dump', color => 'white' },
+ { col => 'time', op => '>', arg => 600, color => 'red' },
+ { col => 'time', op => '>', arg => 120, color => 'yellow' },
+ { col => 'time', op => '>', arg => 60, color => 'green' },
+ { col => 'time', op => '>', arg => 30, color => 'cyan' },
+ ],
+ group_by => [qw(cxn cmd)],
+ aggregate => 0,
+ },
+
+ # TODO: some more columns:
+ # kb_used=hdr='BufUsed' minw='0' num='0' src='percent(1 - ((Key_blocks_unused * key_cache_block_size) / (key_buffer_size||1)))' dec='0' trans='' tbl='q_header' just='-' user='1' maxw='0' label='User-defined'
+ # retries=hdr='Retries' minw='0' num='0' src='Slave_retried_transactions' dec='0' trans='' tbl='slave_sql_status' just='-' user='1' maxw='0' label='User-defined'
+ # thd=hdr='Thd' minw='0' num='0' src='Threads_connected' dec='0' trans='' tbl='slave_sql_status' just='-' user='1' maxw='0' label='User-defined'
+
+ q_header => {
+ capt => 'Q-mode Header',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ questions => { src => 'Questions' },
+ qps => { src => 'Questions/Uptime_hires', dec => 1, trans => [qw(shorten)] },
+ load => { src => $exprs{ServerLoad}, dec => 1, trans => [qw(shorten)] },
+ connections => { src => $exprs{Connection}, dec => 1, trans => [qw(shorten)] },
+ slow => { src => 'Slow_queries', dec => 1, trans => [qw(shorten)] },
+ q_cache_hit => { src => $exprs{QcacheHitRatio}, dec => 1, trans => [qw(percent)] },
+ key_buffer_hit => { src => '1-(Key_reads/(Key_read_requests||1))', dec => 1, trans => [qw(percent)] },
+ bps_in => { src => 'Bytes_received/Uptime_hires', dec => 1, trans => [qw(shorten)] },
+ bps_out => { src => 'Bytes_sent/Uptime_hires', dec => 1, trans => [qw(shorten)] },
+ when => { src => 'when' },
+ q_detail => { src => $exprs{QueryDetail} },
+ },
+ visible => [ qw(cxn when load connections qps slow q_detail q_cache_hit key_buffer_hit bps_in bps_out)],
+ filters => [],
+ sort_cols => 'when cxn',
+ sort_dir => '1',
+ innodb => '',
+ hide_caption => 1,
+ group_by => [],
+ aggregate => 0,
+ },
+ row_operations => {
+ capt => 'InnoDB Row Operations',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ num_inserts => { src => 'IB_ro_num_rows_ins' },
+ num_updates => { src => 'IB_ro_num_rows_upd' },
+ num_reads => { src => 'IB_ro_num_rows_read' },
+ num_deletes => { src => 'IB_ro_num_rows_del' },
+ num_inserts_sec => { src => 'IB_ro_ins_sec' },
+ num_updates_sec => { src => 'IB_ro_upd_sec' },
+ num_reads_sec => { src => 'IB_ro_read_sec' },
+ num_deletes_sec => { src => 'IB_ro_del_sec' },
+ },
+ visible => [ qw(cxn num_inserts num_updates num_reads num_deletes num_inserts_sec
+ num_updates_sec num_reads_sec num_deletes_sec)],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'ro',
+ group_by => [],
+ aggregate => 0,
+ },
+ row_operation_misc => {
+ capt => 'Row Operation Misc',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ queries_in_queue => { src => 'IB_ro_queries_in_queue' },
+ queries_inside => { src => 'IB_ro_queries_inside' },
+ read_views_open => { src => 'IB_ro_read_views_open' },
+ main_thread_id => { src => 'IB_ro_main_thread_id' },
+ main_thread_proc_no => { src => 'IB_ro_main_thread_proc_no' },
+ main_thread_state => { src => 'IB_ro_main_thread_state' },
+ num_res_ext => { src => 'IB_ro_n_reserved_extents' },
+ },
+ visible => [ qw(cxn queries_in_queue queries_inside read_views_open main_thread_state)],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'ro',
+ group_by => [],
+ aggregate => 0,
+ },
+ semaphores => {
+ capt => 'InnoDB Semaphores',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ mutex_os_waits => { src => 'IB_sm_mutex_os_waits' },
+ mutex_spin_rounds => { src => 'IB_sm_mutex_spin_rounds' },
+ mutex_spin_waits => { src => 'IB_sm_mutex_spin_waits' },
+ reservation_count => { src => 'IB_sm_reservation_count' },
+ rw_excl_os_waits => { src => 'IB_sm_rw_excl_os_waits' },
+ rw_excl_spins => { src => 'IB_sm_rw_excl_spins' },
+ rw_shared_os_waits => { src => 'IB_sm_rw_shared_os_waits' },
+ rw_shared_spins => { src => 'IB_sm_rw_shared_spins' },
+ signal_count => { src => 'IB_sm_signal_count' },
+ wait_array_size => { src => 'IB_sm_wait_array_size' },
+ },
+ visible => [ qw(cxn mutex_os_waits mutex_spin_waits mutex_spin_rounds
+ rw_excl_os_waits rw_excl_spins rw_shared_os_waits rw_shared_spins
+ signal_count reservation_count )],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => 'sm',
+ group_by => [],
+ aggregate => 0,
+ },
+ slave_io_status => {
+ capt => 'Slave I/O Status',
+ cust => {},
+ cols => {
+ cxn => { src => $exprs{chcxn_2_cxn}, hdr => 'CXN' },
+ connect_retry => { src => 'connect_retry' },
+ master_host => { src => 'master_host', hdr => 'Master'},
+ master_uuid => { src => '(master_uuid||"N/A")' },
+ master_log_file => { src => 'master_log_file', hdr => 'File' },
+ master_port => { src => 'master_port' },
+ master_ssl_allowed => { src => 'master_ssl_allowed' },
+ master_ssl_ca_file => { src => 'master_ssl_ca_file' },
+ master_ssl_ca_path => { src => 'master_ssl_ca_path' },
+ master_ssl_cert => { src => 'master_ssl_cert' },
+ master_ssl_cipher => { src => 'master_ssl_cipher' },
+ master_ssl_key => { src => 'master_ssl_key' },
+ master_user => { src => 'master_user' },
+ read_master_log_pos => { src => 'read_master_log_pos', hdr => 'Pos' },
+ relay_log_size => { src => 'relay_log_space', trans => [qw(shorten)] },
+ slave_io_running => { src => 'slave_io_running', hdr => 'On?' },
+ slave_io_state => { src => 'slave_io_state', hdr => 'State' },
+ channel_name => { src => $exprs{chcxn_2_ch}, hdr => 'Channel'},
+ },
+ visible => [ qw(cxn channel_name master_host master_uuid slave_io_running master_log_file relay_log_size read_master_log_pos slave_io_state)],
+ filters => [ qw( cxn_is_slave ) ],
+ sort_cols => 'slave_io_running channel_name cxn',
+ colors => [
+ { col => 'slave_io_running', op => 'ne', arg => 'Yes', color => 'black on_red' },
+ ],
+ sort_dir => '1',
+ innodb => '',
+ group_by => [qw(channel_name)],
+ aggregate => 0,
+ },
+ slave_sql_status => {
+ capt => 'Slave SQL Status',
+ cust => {},
+ cols => {
+ cxn => { src => $exprs{chcxn_2_cxn}, hdr => 'CXN' },
+ exec_master_log_pos => { src => 'exec_master_log_pos', hdr => 'Master Pos' },
+ last_errno => { src => 'last_errno' },
+ last_error => { src => 'last_error' },
+ master_host => { src => 'master_host', hdr => 'Master' },
+ master_uuid => { src => '(master_uuid||"N/A")' },
+ relay_log_file => { src => 'relay_log_file' },
+ relay_log_pos => { src => 'relay_log_pos' },
+ relay_log_size => { src => 'relay_log_space', trans => [qw(shorten)] },
+ relay_master_log_file => { src => 'relay_master_log_file', hdr => 'Master File' },
+ replicate_do_db => { src => 'replicate_do_db' },
+ replicate_do_table => { src => 'replicate_do_table' },
+ replicate_ignore_db => { src => 'replicate_ignore_db' },
+ replicate_ignore_table => { src => 'replicate_ignore_table' },
+ replicate_wild_do_table => { src => 'replicate_wild_do_table' },
+ replicate_wild_ignore_table => { src => 'replicate_wild_ignore_table' },
+ skip_counter => { src => 'skip_counter' },
+ slave_sql_running => { src => 'slave_sql_running', hdr => 'On?' },
+ sort_time => { src => 'int(seconds_behind_master/60)' },
+ until_condition => { src => 'until_condition' },
+ until_log_file => { src => 'until_log_file' },
+ until_log_pos => { src => 'until_log_pos' },
+ time_behind_master => { src => 'seconds_behind_master', trans => [ qw(secs_to_time) ] },
+ bytes_behind_master => { src => 'master_log_file && master_log_file eq relay_master_log_file ? read_master_log_pos - exec_master_log_pos : 0', trans => [qw(shorten)] },
+ slave_catchup_rate => { src => $exprs{SlaveCatchupRate}, trans => [ qw(set_precision) ] },
+ slave_open_temp_tables => { src => 'Slave_open_temp_tables' },
+ retrieved_gtid_set => { src => '(retrieved_gtid_set||"N/A")' },
+ executed_gtid_set => { src => '(executed_gtid_set||"N/A")' },
+ channel_name => { src => $exprs{chcxn_2_ch}, hdr => 'Channel'},
+ },
+ visible => [ qw(cxn channel_name master_host master_uuid slave_sql_running time_behind_master slave_catchup_rate slave_open_temp_tables relay_log_pos last_error retrieved_gtid_set executed_gtid_set)],
+ filters => [ qw( cxn_is_slave ) ],
+ sort_cols => 'slave_sql_running -sort_time channel_name cxn',
+ sort_dir => '1',
+ innodb => '',
+ colors => [
+ { col => 'slave_sql_running', op => 'ne', arg => 'Yes', color => 'black on_red' },
+ { col => 'time_behind_master', op => '>', arg => 600, color => 'red' },
+ { col => 'time_behind_master', op => '>', arg => 60, color => 'yellow' },
+ { col => 'time_behind_master', op => '==', arg => 0, color => 'white' },
+ ],
+ group_by => [qw(channel_name)],
+ aggregate => 0,
+ },
+ table_statistics => {
+ capt => 'Data from TABLE_STATISTICS',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn', minw => 6, maxw => 10 },
+ db => { src => 'table_schema' },
+ tbl => { src => 'table_name' },
+ rows_read => { src => 'rows_read' },
+ rows_changed => { src => 'rows_changed' },
+ rows_changed_x_indexes => { src => 'rows_changed_x_indexes' },
+ },
+ visible => [ qw(cxn db tbl rows_read rows_changed rows_changed_x_indexes) ],
+ filters => [ ],
+ sort_cols => 'rows_read',
+ sort_dir => '-1',
+ innodb => '',
+ colors => [],
+ hide_caption => 1,
+ group_by => [],
+ aggregate => 0,
+ },
+ t_header => {
+ capt => 'T-Mode Header',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ dirty_bufs => { src => $exprs{DirtyBufs}, trans => [qw(percent)] },
+ history_list_len => { src => 'IB_tx_history_list_len' },
+ lock_structs => { src => 'IB_tx_num_lock_structs' },
+ num_txns => { src => $exprs{NumTxns} },
+ max_txn => { src => $exprs{MaxTxnTime}, trans => [qw(secs_to_time)] },
+ undo_for => { src => 'IB_tx_purge_undo_for' },
+ used_bufs => { src => $exprs{BufPoolFill}, trans => [qw(percent)]},
+ versions => { src => $exprs{OldVersions} },
+ },
+ visible => [ qw(cxn history_list_len versions undo_for dirty_bufs used_bufs num_txns max_txn lock_structs)],
+ filters => [ ],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => '',
+ colors => [],
+ hide_caption => 1,
+ group_by => [],
+ aggregate => 0,
+ },
+ var_status => {
+ capt => 'Variables & Status',
+ cust => {},
+ cols => {}, # Generated from current varset
+ visible => [], # Generated from current varset
+ filters => [],
+ sort_cols => '',
+ sort_dir => 1,
+ innodb => '',
+ temp => 1, # Do not persist to config file.
+ hide_caption => 1,
+ pivot => 0,
+ group_by => [],
+ aggregate => 0,
+ },
+ wait_array => {
+ capt => 'InnoDB Wait Array',
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ thread => { src => 'thread' },
+ waited_at_filename => { src => 'waited_at_filename' },
+ waited_at_line => { src => 'waited_at_line' },
+ 'time' => { src => 'waited_secs', trans => [ qw(secs_to_time) ] },
+ request_type => { src => 'request_type' },
+ lock_mem_addr => { src => 'lock_mem_addr' },
+ lock_cfile_name => { src => 'lock_cfile_name' },
+ lock_cline => { src => 'lock_cline' },
+ writer_thread => { src => 'writer_thread' },
+ writer_lock_mode => { src => 'writer_lock_mode' },
+ num_readers => { src => 'num_readers' },
+ lock_var => { src => 'lock_var' },
+ waiters_flag => { src => 'waiters_flag' },
+ last_s_file_name => { src => 'last_s_file_name' },
+ last_s_line => { src => 'last_s_line' },
+ last_x_file_name => { src => 'last_x_file_name' },
+ last_x_line => { src => 'last_x_line' },
+ cell_waiting => { src => 'cell_waiting' },
+ cell_event_set => { src => 'cell_event_set' },
+ },
+ visible => [ qw(cxn thread time waited_at_filename waited_at_line request_type num_readers lock_var waiters_flag cell_waiting cell_event_set)],
+ filters => [],
+ sort_cols => 'cxn -time',
+ sort_dir => '1',
+ innodb => 'sm',
+ group_by => [],
+ aggregate => 0,
+ },
+ health_dashboard => {
+ capt => 'Health Dashboard',
+ hide_caption => 1,
+ cust => {},
+ cols => {
+ cxn => { src => 'cxn' },
+ uptime => { src => 'Uptime', trans => [qw(fuzzy_time)] },
+ qps => { src => 'Questions/Uptime_hires', dec => 1, trans => [qw(shorten)] },
+ spark_qps => { src => 'SPARK_qps' },
+ run => { src => 'User_threads_running' },
+ spark_run => { src => 'SPARK_run' },
+ max_query_time => { src => 'Max_query_time', trans => [qw(fuzzy_time)] },
+ connections => { src => 'Threads_connected' },
+ miss_rate => { src => 'Innodb_buffer_pool_reads/Uptime_hires', trans => [qw(set_precision)] },
+ locked_count => { src => 'Locked_count' },
+ 'open' => { src => 'Open_tables' },
+ slave_running => { src => 'Slave_ok . " " . (Slaves || "")' },
+ time_behind_master => { src => 'seconds_behind_master', hdr => 'ReplLag' , trans => [qw(fuzzy_time)] },
+ longest_sql => { src => 'Longest_sql', trans => [qw(distill)] },
+ },
+ visible => [qw(
+ cxn uptime max_query_time time_behind_master qps connections run
+ miss_rate locked_count open slave_running longest_sql
+ )],
+ filters => [],
+ sort_cols => 'cxn',
+ sort_dir => '1',
+ innodb => '',
+ colors => [
+ { col => 'slave_running', op => '=~', arg => 'No', color => 'black on_red' },
+ { col => 'max_query_time', op => '>', arg => 30 * 60, color => 'red' },
+ { col => 'max_query_time', op => '>', arg => 600, color => 'yellow' },
+ { col => 'time_behind_master', op => '>', arg => 3600, color => 'cyan' },
+ ],
+ group_by => [],
+ aggregate => 0,
+ },
+);
+
+# Initialize %tbl_meta from %columns and do some checks.
+foreach my $table_name ( keys %tbl_meta ) {
+ my $table = $tbl_meta{$table_name};
+ my $cols = $table->{cols};
+
+ foreach my $col_name ( keys %$cols ) {
+ my $col_def = $table->{cols}->{$col_name};
+ die "I can't find a column named '$col_name' for '$table_name'" unless $columns{$col_name};
+ $columns{$col_name}->{referenced} = 1;
+
+ foreach my $prop ( keys %col_props ) {
+ # Each column gets non-existing values set from %columns or defaults from %col_props.
+ if ( !$col_def->{$prop} ) {
+ $col_def->{$prop}
+ = defined($columns{$col_name}->{$prop})
+ ? $columns{$col_name}->{$prop}
+ : $col_props{$prop};
+ }
+ }
+
+ # Ensure transformations and aggregate functions are valid
+ die "Unknown aggregate function '$col_def->{agg}' "
+ . "for column '$col_name' in table '$table_name'"
+ unless exists $agg_funcs{$col_def->{agg}};
+ foreach my $trans ( @{$col_def->{trans}} ) {
+ die "Unknown transformation '$trans' "
+ . "for column '$col_name' in table '$table_name'"
+ unless exists $trans_funcs{$trans};
+ }
+ }
+
+ # Ensure each column in visible and group_by exists in cols
+ foreach my $place ( qw(visible group_by) ) {
+ foreach my $col_name ( @{$table->{$place}} ) {
+ if ( !exists $cols->{$col_name} ) {
+ die "Column '$col_name' is listed in '$place' for '$table_name', but doesn't exist";
+ }
+ }
+ }
+
+ # Compile sort and color subroutines
+ $table->{sort_func} = make_sort_func($table);
+ $table->{color_func} = make_color_func($table);
+}
+
+# This is for code cleanup:
+{
+ my @unused_cols = grep { !$columns{$_}->{referenced} } sort keys %columns;
+ if ( @unused_cols ) {
+ die "The following columns are not used: "
+ . join(' ', @unused_cols);
+ }
+}
+
+# ###########################################################################
+# Operating modes {{{3
+# ###########################################################################
+my %modes = (
+ A => {
+ hdr => 'Dashboard',
+ cust => {},
+ note => 'Shows health/status dashboard',
+ action_for => {
+ k => {
+ action => sub { kill_query('CONNECTION') },
+ label => "Kill a query's connection",
+ },
+ x => {
+ action => sub { kill_query('QUERY') },
+ label => "Kill a query",
+ },
+ r => {
+ action => sub { reverse_sort('health_dashboard'); },
+ label => 'Reverse sort order',
+ },
+ s => {
+ action => sub { choose_sort_cols('health_dashboard'); },
+ label => "Choose sort column",
+ },
+ },
+ display_sub => \&display_A,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(health_dashboard)],
+ visible_tables => [qw(health_dashboard)],
+ },
+ B => {
+ hdr => 'InnoDB Buffers',
+ cust => {},
+ note => 'Shows buffer info from InnoDB',
+ action_for => {
+ i => {
+ action => sub { toggle_config('status_inc') },
+ label => 'Toggle incremental status display',
+ },
+ },
+ display_sub => \&display_B,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(buffer_pool page_statistics insert_buffers adaptive_hash_index)],
+ visible_tables => [qw(buffer_pool page_statistics insert_buffers adaptive_hash_index)],
+ },
+ C => {
+ hdr => 'Command Summary',
+ cust => {},
+ note => 'Shows relative magnitude of variables',
+ action_for => {
+ s => {
+ action => sub { get_config_interactive('cmd_filter') },
+ label => 'Choose variable prefix',
+ },
+ },
+ display_sub => \&display_C,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(cmd_summary)],
+ visible_tables => [qw(cmd_summary)],
+ },
+ D => {
+ hdr => 'InnoDB Deadlocks',
+ cust => {},
+ note => 'View InnoDB deadlock information',
+ action_for => {
+ c => {
+ action => sub { edit_table('deadlock_transactions') },
+ label => 'Choose visible columns',
+ },
+ w => {
+ action => \&create_deadlock,
+ label => 'Wipe deadlock status info by creating a deadlock',
+ },
+ },
+ display_sub => \&display_D,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(deadlock_transactions deadlock_locks)],
+ visible_tables => [qw(deadlock_transactions deadlock_locks)],
+ },
+ F => {
+ hdr => 'InnoDB FK Err',
+ cust => {},
+ note => 'View the latest InnoDB foreign key error',
+ action_for => {},
+ display_sub => \&display_F,
+ connections => [],
+ server_group => '',
+ one_connection => 1,
+ tables => [qw(fk_error)],
+ visible_tables => [qw(fk_error)],
+ },
+ I => {
+ hdr => 'InnoDB I/O Info',
+ cust => {},
+ note => 'Shows I/O info (i/o, log...) from InnoDB',
+ action_for => {
+ i => {
+ action => sub { toggle_config('status_inc') },
+ label => 'Toggle incremental status display',
+ },
+ },
+ display_sub => \&display_I,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(io_threads pending_io file_io_misc log_statistics)],
+ visible_tables => [qw(io_threads pending_io file_io_misc log_statistics)],
+ },
+ K => {
+ hdr => 'InnoDB Lock Waits',
+ cust => {},
+ note => 'Shows blocked and blocking transactions',
+ action_for => {
+ k => {
+ action => sub { kill_query('CONNECTION') },
+ label => "Kill a query's connection",
+ },
+ },
+ display_sub => \&display_K,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(innodb_blocked_blocker)],
+ visible_tables => [qw(innodb_blocked_blocker)],
+ },
+ L => {
+ hdr => 'Locks',
+ cust => {},
+ note => 'Shows transaction locks',
+ action_for => {
+ a => {
+ action => sub { send_cmd_to_servers('CREATE TABLE IF NOT EXISTS test.innodb_lock_monitor(a int) ENGINE=InnoDB', 0, '', []); },
+ label => 'Start the InnoDB Lock Monitor',
+ },
+ o => {
+ action => sub { send_cmd_to_servers('DROP TABLE IF EXISTS test.innodb_lock_monitor', 0, '', []); },
+ label => 'Stop the InnoDB Lock Monitor',
+ },
+ },
+ display_sub => \&display_L,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(innodb_locks)],
+ visible_tables => [qw(innodb_locks)],
+ },
+ M => {
+ hdr => 'Replication Status',
+ cust => {},
+ note => 'Shows replication (master and slave) status',
+ action_for => {
+ a => {
+ action => sub { send_cmd_to_servers('START SLAVE', 0, 'START SLAVE SQL_THREAD UNTIL MASTER_LOG_FILE = ?, MASTER_LOG_POS = ?', []); },
+ label => 'Start slave(s)',
+ },
+ i => {
+ action => sub { toggle_config('status_inc') },
+ label => 'Toggle incremental status display',
+ },
+ o => {
+ action => sub { send_cmd_to_servers('STOP SLAVE', 0, '', []); },
+ label => 'Stop slave(s)',
+ },
+ b => {
+ action => sub { purge_master_logs() },
+ label => 'Purge unused master logs',
+ },
+ },
+ display_sub => \&display_M,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(slave_sql_status slave_io_status master_status)],
+ visible_tables => [qw(slave_sql_status slave_io_status master_status)],
+ },
+ O => {
+ hdr => 'Open Tables',
+ cust => {},
+ note => 'Shows open tables in MySQL',
+ action_for => {
+ r => {
+ action => sub { reverse_sort('open_tables'); },
+ label => 'Reverse sort order',
+ },
+ s => {
+ action => sub { choose_sort_cols('open_tables'); },
+ label => "Choose sort column",
+ },
+ },
+ display_sub => \&display_O,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(open_tables)],
+ visible_tables => [qw(open_tables)],
+ },
+ U => {
+ hdr => 'User Statistics',
+ cust => {},
+ note => 'Displays Percona/MariaDB enhancements such as table statistics',
+ action_for => {
+ i => {
+ action => sub { set_visible_table('index_statistics') },
+ label => 'Switch to INDEX_STATISTICS',
+ },
+ s => {
+ action => sub { $clear_screen_sub->(); send_cmd_to_servers('SET @@global.userstat_running := 1 - @@global.userstat_running', 1, undef, []); },
+ label => "Change the display's sort column",
+ },
+ t => {
+ action => sub { set_visible_table('table_statistics') },
+ label => 'Switch to TABLE_STATISTICS',
+ },
+ x => {
+ action => sub { set_visible_table('index_table_statistics') },
+ label => 'Switch to {INDEX,TABLE}_STATISTICS',
+ },
+ },
+ display_sub => \&display_P,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(table_statistics index_statistics index_table_statistics)],
+ visible_tables => [qw(index_table_statistics)],
+ },
+ Q => {
+ hdr => 'Query List',
+ cust => {},
+ note => 'Shows queries from SHOW FULL PROCESSLIST',
+ action_for => {
+ a => {
+ action => sub { toggle_filter('processlist', 'hide_self') },
+ label => 'Toggle the innotop process',
+ },
+ c => {
+ action => sub { edit_table('processlist') },
+ label => 'Choose visible columns',
+ },
+ e => {
+ action => sub { analyze_query('e'); },
+ label => "Explain a thread's query",
+ },
+ f => {
+ action => sub { analyze_query('f'); },
+ label => "Show a thread's full query",
+ },
+ h => {
+ action => sub { toggle_visible_table('Q', 'q_header') },
+ label => 'Toggle the header on and off',
+ },
+ i => {
+ action => sub { toggle_filter('processlist', 'hide_inactive') },
+ label => 'Toggle idle processes',
+ },
+ k => {
+ action => sub { kill_query('CONNECTION') },
+ label => "Kill a query's connection",
+ },
+ r => {
+ action => sub { reverse_sort('processlist'); },
+ label => 'Reverse sort order',
+ },
+ s => {
+ action => sub { choose_sort_cols('processlist'); },
+ label => "Change the display's sort column",
+ },
+ t => {
+ action => sub { toggle_filter('processlist', 'hide_connect') },
+ label => 'Toggle slave processes',
+ },
+ x => {
+ action => sub { kill_query('QUERY') },
+ label => "Kill a query",
+ },
+ },
+ display_sub => \&display_Q,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(q_header processlist)],
+ visible_tables => [qw(q_header processlist)],
+ },
+ R => {
+ hdr => 'InnoDB Row Ops',
+ cust => {},
+ note => 'Shows InnoDB row operation and semaphore info',
+ action_for => {
+ i => {
+ action => sub { toggle_config('status_inc') },
+ label => 'Toggle incremental status display',
+ },
+ },
+ display_sub => \&display_R,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(row_operations row_operation_misc semaphores wait_array)],
+ visible_tables => [qw(row_operations row_operation_misc semaphores wait_array)],
+ },
+ S => {
+ hdr => 'Variables & Status',
+ cust => {},
+ note => 'Shows query load statistics a la vmstat',
+ action_for => {
+ '>' => {
+ action => sub { switch_var_set('S_set', 1) },
+ label => 'Switch to next variable set',
+ },
+ '<' => {
+ action => sub { switch_var_set('S_set', -1) },
+ label => 'Switch to prev variable set',
+ },
+ c => {
+ action => sub {
+ choose_var_set('S_set');
+ start_S_mode();
+ },
+ label => "Choose which set to display",
+ },
+ e => {
+ action => \&edit_current_var_set,
+ label => 'Edit the current set of variables',
+ },
+ i => {
+ action => sub { $clear_screen_sub->(); toggle_config('status_inc') },
+ label => 'Toggle incremental status display',
+ },
+ '-' => {
+ action => sub { set_display_precision(-1) },
+ label => 'Decrease fractional display precision',
+ },
+ '+' => {
+ action => sub { set_display_precision(1) },
+ label => 'Increase fractional display precision',
+ },
+ g => {
+ action => sub { set_s_mode('g') },
+ label => 'Switch to graph (tload) view',
+ },
+ s => {
+ action => sub { set_s_mode('s') },
+ label => 'Switch to standard (vmstat) view',
+ },
+ v => {
+ action => sub { set_s_mode('v') },
+ label => 'Switch to pivoted view',
+ },
+ },
+ display_sub => \&display_S,
+ no_clear_screen => 1,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(var_status)],
+ visible_tables => [qw(var_status)],
+ },
+ T => {
+ hdr => 'InnoDB Txns',
+ cust => {},
+ note => 'Shows InnoDB transactions in top-like format',
+ action_for => {
+ a => {
+ action => sub { toggle_filter('innodb_transactions', 'hide_self') },
+ label => 'Toggle the innotop process',
+ },
+ c => {
+ action => sub { edit_table('innodb_transactions') },
+ label => 'Choose visible columns',
+ },
+ e => {
+ action => sub { analyze_query('e'); },
+ label => "Explain a thread's query",
+ },
+ f => {
+ action => sub { analyze_query('f'); },
+ label => "Show a thread's full query",
+ },
+ h => {
+ action => sub { toggle_visible_table('T', 't_header') },
+ label => 'Toggle the header on and off',
+ },
+ i => {
+ action => sub { toggle_filter('innodb_transactions', 'hide_inactive') },
+ label => 'Toggle inactive transactions',
+ },
+ k => {
+ action => sub { kill_query('CONNECTION') },
+ label => "Kill a transaction's connection",
+ },
+ r => {
+ action => sub { reverse_sort('innodb_transactions'); },
+ label => 'Reverse sort order',
+ },
+ s => {
+ action => sub { choose_sort_cols('innodb_transactions'); },
+ label => "Change the display's sort column",
+ },
+ x => {
+ action => sub { kill_query('QUERY') },
+ label => "Kill a query",
+ },
+ },
+ display_sub => \&display_T,
+ connections => [],
+ server_group => '',
+ one_connection => 0,
+ tables => [qw(t_header innodb_transactions)],
+ visible_tables => [qw(t_header innodb_transactions)],
+ },
+);
+
+# ###########################################################################
+# Global key mappings {{{3
+# Keyed on a single character, which is read from the keyboard. Uppercase
+# letters switch modes. Lowercase letters access commands when in a mode.
+# These can be overridden by action_for in %modes.
+# ###########################################################################
+my %action_for = (
+ '$' => {
+ action => \&edit_configuration,
+ label => 'Edit configuration settings',
+ },
+ '?' => {
+ action => \&display_help,
+ label => 'Show help',
+ },
+ '!' => {
+ action => \&display_license,
+ label => 'Show license and warranty',
+ },
+ '^' => {
+ action => \&edit_table,
+ label => "Edit the displayed table(s)",
+ },
+ '#' => {
+ action => \&choose_server_groups,
+ label => 'Select/create server groups',
+ },
+ '@' => {
+ action => \&choose_servers,
+ label => 'Select/create server connections',
+ },
+ '/' => {
+ action => \&add_quick_filter,
+ label => 'Quickly filter what you see',
+ },
+ '\\' => {
+ action => \&clear_quick_filters,
+ label => 'Clear quick-filters',
+ },
+ '%' => {
+ action => \&choose_filters,
+ label => 'Choose and edit table filters',
+ },
+ "\t" => {
+ action => \&next_server_group,
+ label => 'Switch to the next server group',
+ key => 'TAB',
+ },
+ '=' => {
+ action => \&toggle_aggregate,
+ label => 'Toggle aggregation',
+ },
+ # TODO: can these be auto-generated from %modes?
+ A => {
+ action => sub { switch_mode('A') },
+ label => '',
+ },
+ B => {
+ action => sub { switch_mode('B') },
+ label => '',
+ },
+ C => {
+ action => sub { switch_mode('C') },
+ label => '',
+ },
+ D => {
+ action => sub { switch_mode('D') },
+ label => '',
+ },
+ F => {
+ action => sub { switch_mode('F') },
+ label => '',
+ },
+ I => {
+ action => sub { switch_mode('I') },
+ label => '',
+ },
+ K => {
+ action => sub { switch_mode('K') },
+ label => '',
+ },
+ L => {
+ action => sub { switch_mode('L') },
+ label => '',
+ },
+ M => {
+ action => sub { switch_mode('M') },
+ label => '',
+ },
+ O => {
+ action => sub { switch_mode('O') },
+ label => '',
+ },
+ Q => {
+ action => sub { switch_mode('Q') },
+ label => '',
+ },
+ R => {
+ action => sub { switch_mode('R') },
+ label => '',
+ },
+ S => {
+ action => \&start_S_mode,
+ label => '',
+ },
+ T => {
+ action => sub { switch_mode('T') },
+ label => '',
+ },
+ U => {
+ action => sub { switch_mode('U') },
+ label => '',
+ },
+ d => {
+ action => sub { get_config_interactive('interval') },
+ label => 'Change refresh interval',
+ },
+ n => { action => \&next_server, label => 'Switch to the next connection' },
+ p => { action => \&pause, label => 'Pause innotop', },
+ q => { action => \&finish, label => 'Quit innotop', },
+);
+
+# ###########################################################################
+# Sleep times after certain statements {{{3
+# ###########################################################################
+my %stmt_sleep_time_for = ();
+
+# ###########################################################################
+# Config editor key mappings {{{3
+# ###########################################################################
+my %cfg_editor_action = (
+ c => {
+ note => 'Edit columns, etc in the displayed table(s)',
+ func => \&edit_table,
+ },
+ g => {
+ note => 'Edit general configuration',
+ func => \&edit_configuration_variables,
+ },
+ k => {
+ note => 'Edit row-coloring rules',
+ func => \&edit_color_rules,
+ },
+ p => {
+ note => 'Manage plugins',
+ func => \&edit_plugins,
+ },
+ s => {
+ note => 'Edit server groups',
+ func => \&edit_server_groups,
+ },
+ S => {
+ note => 'Edit SQL statement sleep delays',
+ func => \&edit_stmt_sleep_times,
+ },
+ t => {
+ note => 'Choose which table(s) to display in this mode',
+ func => \&choose_mode_tables,
+ },
+);
+
+# ###########################################################################
+# Color editor key mappings {{{3
+# ###########################################################################
+my %color_editor_action = (
+ n => {
+ note => 'Create a new color rule',
+ func => sub {
+ my ( $tbl, $idx ) = @_;
+ my $meta = $tbl_meta{$tbl};
+
+ $clear_screen_sub->();
+ my $col;
+ do {
+ $col = prompt_list(
+ 'Choose the target column for the rule',
+ '',
+ sub { return keys %{$meta->{cols}} },
+ { map { $_ => $meta->{cols}->{$_}->{label} } keys %{$meta->{cols}} });
+ } while ( !$col );
+ ( $col ) = grep { $_ } split(/\W+/, $col);
+ return $idx unless $col && exists $meta->{cols}->{$col};
+
+ $clear_screen_sub->();
+ my $op;
+ do {
+ $op = prompt_list(
+ 'Choose the comparison operator for the rule',
+ '',
+ sub { return keys %comp_ops },
+ { map { $_ => $comp_ops{$_} } keys %comp_ops } );
+ } until ( $op );
+ $op =~ s/\s+//g;
+ return $idx unless $op && exists $comp_ops{$op};
+
+ my $arg;
+ do {
+ $arg = prompt('Specify an argument for the comparison');
+ } until defined $arg;
+
+ my $color;
+ do {
+ $color = prompt_list(
+ 'Choose the color(s) the row should be when the rule matches',
+ '',
+ sub { return keys %ansicolors },
+ { map { $_ => $_ } keys %ansicolors } );
+ } until defined $color;
+ $color = join(' ', unique(grep { exists $ansicolors{$_} } split(/\W+/, $color)));
+ return $idx unless $color;
+
+ push @{$tbl_meta{$tbl}->{colors}}, {
+ col => $col,
+ op => $op,
+ arg => $arg,
+ color => $color
+ };
+ $tbl_meta{$tbl}->{cust}->{colors} = 1;
+
+ return $idx;
+ },
+ },
+ d => {
+ note => 'Remove the selected rule',
+ func => sub {
+ my ( $tbl, $idx ) = @_;
+ my @rules = @{ $tbl_meta{$tbl}->{colors} };
+ return 0 unless @rules > 0 && $idx < @rules && $idx >= 0;
+ splice(@{$tbl_meta{$tbl}->{colors}}, $idx, 1);
+ $tbl_meta{$tbl}->{cust}->{colors} = 1;
+ return $idx == @rules ? $#rules : $idx;
+ },
+ },
+ j => {
+ note => 'Move highlight down one',
+ func => sub {
+ my ( $tbl, $idx ) = @_;
+ my $num_rules = scalar @{$tbl_meta{$tbl}->{colors}};
+ return ($idx + 1) % $num_rules;
+ },
+ },
+ k => {
+ note => 'Move highlight up one',
+ func => sub {
+ my ( $tbl, $idx ) = @_;
+ my $num_rules = scalar @{$tbl_meta{$tbl}->{colors}};
+ return ($idx - 1) % $num_rules;
+ },
+ },
+ '+' => {
+ note => 'Move selected rule up one',
+ func => sub {
+ my ( $tbl, $idx ) = @_;
+ my $meta = $tbl_meta{$tbl};
+ my $dest = $idx == 0 ? scalar(@{$meta->{colors}} - 1) : $idx - 1;
+ my $temp = $meta->{colors}->[$idx];
+ $meta->{colors}->[$idx] = $meta->{colors}->[$dest];
+ $meta->{colors}->[$dest] = $temp;
+ $meta->{cust}->{colors} = 1;
+ return $dest;
+ },
+ },
+ '-' => {
+ note => 'Move selected rule down one',
+ func => sub {
+ my ( $tbl, $idx ) = @_;
+ my $meta = $tbl_meta{$tbl};
+ my $dest = $idx == scalar(@{$meta->{colors}} - 1) ? 0 : $idx + 1;
+ my $temp = $meta->{colors}->[$idx];
+ $meta->{colors}->[$idx] = $meta->{colors}->[$dest];
+ $meta->{colors}->[$dest] = $temp;
+ $meta->{cust}->{colors} = 1;
+ return $dest;
+ },
+ },
+);
+
+# ###########################################################################
+# Plugin editor key mappings {{{3
+# ###########################################################################
+my %plugin_editor_action = (
+ '*' => {
+ note => 'Toggle selected plugin active/inactive',
+ func => sub {
+ my ( $plugins, $idx ) = @_;
+ my $plugin = $plugins->[$idx];
+ $plugin->{active} = $plugin->{active} ? 0 : 1;
+ return $idx;
+ },
+ },
+ j => {
+ note => 'Move highlight down one',
+ func => sub {
+ my ( $plugins, $idx ) = @_;
+ return ($idx + 1) % scalar(@$plugins);
+ },
+ },
+ k => {
+ note => 'Move highlight up one',
+ func => sub {
+ my ( $plugins, $idx ) = @_;
+ return $idx == 0 ? @$plugins - 1 : $idx - 1;
+ },
+ },
+);
+
+# ###########################################################################
+# Table editor key mappings {{{3
+# ###########################################################################
+my %tbl_editor_action = (
+ a => {
+ note => 'Add a column to the table',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ my @visible_cols = @{ $tbl_meta{$tbl}->{visible} };
+ my %all_cols = %{ $tbl_meta{$tbl}->{cols} };
+ delete @all_cols{@visible_cols};
+ my $choice = prompt_list(
+ 'Choose a column',
+ '',
+ sub { return keys %all_cols; },
+ { map { $_ => $all_cols{$_}->{label} || $all_cols{$_}->{hdr} } keys %all_cols });
+ if ( $all_cols{$choice} ) {
+ push @{$tbl_meta{$tbl}->{visible}}, $choice;
+ $tbl_meta{$tbl}->{cust}->{visible} = 1;
+ return $choice;
+ }
+ return $col;
+ },
+ },
+ n => {
+ note => 'Create a new column and add it to the table',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+
+ $clear_screen_sub->();
+ print word_wrap("Choose a name for the column. This name is not displayed, and is used only "
+ . "for internal reference. It can contain only lowercase letters, numbers, "
+ . "and underscores.");
+ print "\n\n";
+ do {
+ $col = prompt("Enter column name");
+ $col = '' if $col =~ m/[^a-z0-9_]/;
+ } while ( !$col );
+
+ $clear_screen_sub->();
+ my $hdr;
+ do {
+ $hdr = prompt("Enter column header");
+ } while ( !$hdr );
+
+ $clear_screen_sub->();
+ print "Choose a source for the column's data\n\n";
+ my ( $src, $sub, $err );
+ do {
+ if ( $err ) {
+ print "Error: $err\n\n";
+ }
+ $src = prompt("Enter column source");
+ if ( $src ) {
+ ( $sub, $err ) = compile_expr($src);
+ }
+ } until ( !$err);
+
+ # TODO: this duplicates %col_props.
+ $tbl_meta{$tbl}->{cols}->{$col} = {
+ hdr => $hdr,
+ src => $src,
+ just => '-',
+ num => 0,
+ label => 'User-defined',
+ user => 1,
+ tbl => $tbl,
+ minw => 0,
+ maxw => 0,
+ trans => [],
+ func => $sub,
+ dec => 0,
+ agg => 0,
+ aggonly => 0,
+ agghide => 0,
+ };
+
+ $tbl_meta{$tbl}->{visible} = [ unique(@{$tbl_meta{$tbl}->{visible}}, $col) ];
+ $tbl_meta{$tbl}->{cust}->{visible} = 1;
+ return $col;
+ },
+ },
+ d => {
+ note => 'Remove selected column',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ my @visible_cols = @{ $tbl_meta{$tbl}->{visible} };
+ my $idx = 0;
+ return $col unless @visible_cols > 1;
+ while ( $visible_cols[$idx] ne $col ) {
+ $idx++;
+ }
+ $tbl_meta{$tbl}->{visible} = [ grep { $_ ne $col } @visible_cols ];
+ $tbl_meta{$tbl}->{cust}->{visible} = 1;
+ return $idx == $#visible_cols ? $visible_cols[$idx - 1] : $visible_cols[$idx + 1];
+ },
+ },
+ e => {
+ note => 'Edit selected column',
+ func => sub {
+ # TODO: make this editor hotkey-driven and give readline support.
+ my ( $tbl, $col ) = @_;
+ $clear_screen_sub->();
+ my $meta = $tbl_meta{$tbl}->{cols}->{$col};
+ my @prop = qw(hdr label src just num minw maxw trans agg); # TODO redundant
+
+ my $answer;
+ do {
+ # Do what the user asked...
+ if ( $answer && grep { $_ eq $answer } @prop ) {
+ # Some properties are arrays, others scalars.
+ my $ini = ref $col_props{$answer} ? join(' ', @{$meta->{$answer}}) : $meta->{$answer};
+ my $val = prompt("New value for $answer", undef, $ini);
+ $val = [ split(' ', $val) ] if ref($col_props{$answer});
+ if ( $answer eq 'trans' ) {
+ $val = [ unique(grep{ exists $trans_funcs{$_} } @$val) ];
+ }
+ @{$meta}{$answer, 'user', 'tbl' } = ( $val, 1, $tbl );
+ }
+
+ my @display_lines = (
+ '',
+ "You are editing column $tbl.$col.\n",
+ );
+
+ push @display_lines, create_table2(
+ \@prop,
+ { map { $_ => $_ } @prop },
+ { map { $_ => ref $meta->{$_} eq 'ARRAY' ? join(' ', @{$meta->{$_}})
+ : ref $meta->{$_} ? '[expression code]'
+ : $meta->{$_}
+ } @prop
+ },
+ { sep => ' ' });
+ draw_screen(\@display_lines, { raw => 1 });
+ print "\n\n"; # One to add space, one to clear readline artifacts
+ $answer = prompt('Edit what? (q to quit)');
+ } while ( $answer ne 'q' );
+
+ return $col;
+ },
+ },
+ j => {
+ note => 'Move highlight down one',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ my @visible_cols = @{ $tbl_meta{$tbl}->{visible} };
+ my $idx = 0;
+ while ( $visible_cols[$idx] ne $col ) {
+ $idx++;
+ }
+ return $visible_cols[ ($idx + 1) % @visible_cols ];
+ },
+ },
+ k => {
+ note => 'Move highlight up one',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ my @visible_cols = @{ $tbl_meta{$tbl}->{visible} };
+ my $idx = 0;
+ while ( $visible_cols[$idx] ne $col ) {
+ $idx++;
+ }
+ return $visible_cols[ $idx - 1 ];
+ },
+ },
+ '+' => {
+ note => 'Move selected column up one',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ my $meta = $tbl_meta{$tbl};
+ my @visible_cols = @{$meta->{visible}};
+ my $idx = 0;
+ while ( $visible_cols[$idx] ne $col ) {
+ $idx++;
+ }
+ if ( $idx ) {
+ $visible_cols[$idx] = $visible_cols[$idx - 1];
+ $visible_cols[$idx - 1] = $col;
+ $meta->{visible} = \@visible_cols;
+ }
+ else {
+ shift @{$meta->{visible}};
+ push @{$meta->{visible}}, $col;
+ }
+ $meta->{cust}->{visible} = 1;
+ return $col;
+ },
+ },
+ '-' => {
+ note => 'Move selected column down one',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ my $meta = $tbl_meta{$tbl};
+ my @visible_cols = @{$meta->{visible}};
+ my $idx = 0;
+ while ( $visible_cols[$idx] ne $col ) {
+ $idx++;
+ }
+ if ( $idx == $#visible_cols ) {
+ unshift @{$meta->{visible}}, $col;
+ pop @{$meta->{visible}};
+ }
+ else {
+ $visible_cols[$idx] = $visible_cols[$idx + 1];
+ $visible_cols[$idx + 1] = $col;
+ $meta->{visible} = \@visible_cols;
+ }
+ $meta->{cust}->{visible} = 1;
+ return $col;
+ },
+ },
+ f => {
+ note => 'Choose filters',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ choose_filters($tbl);
+ return $col;
+ },
+ },
+ o => {
+ note => 'Edit color rules',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ edit_color_rules($tbl);
+ return $col;
+ },
+ },
+ s => {
+ note => 'Choose sort columns',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ choose_sort_cols($tbl);
+ return $col;
+ },
+ },
+ g => {
+ note => 'Choose group-by (aggregate) columns',
+ func => sub {
+ my ( $tbl, $col ) = @_;
+ choose_group_cols($tbl);
+ return $col;
+ },
+ },
+);
+
+# ###########################################################################
+# Global variables and environment {{{2
+# ###########################################################################
+
+my @this_term_size; # w_chars, h_chars, w_pix, h_pix
+my @last_term_size; # w_chars, h_chars, w_pix, h_pix
+my $char;
+my $windows = $OSNAME =~ m/MSWin/;
+my $have_color = 0;
+my $MAX_ULONG = 4294967295; # 2^32-1
+my $num_regex = qr/^[+-]?(?=\d|\.)\d*(?:\.\d+)?(?:E[+-]?\d+|)$/i;
+my $int_regex = qr/^\d+$/;
+my $bool_regex = qr/^[01]$/;
+my $term = undef;
+my $file = undef; # File to watch for InnoDB monitor output
+my $file_mtime = undef; # Status of watched file
+my $file_data = undef; # Last chunk of text read from file
+my $innodb_parser = InnoDBParser->new;
+
+my $nonfatal_errs = join('|',
+ 'Access denied for user',
+ 'Unknown MySQL server host',
+ 'Unknown database',
+ 'Can\'t connect to local MySQL server through socket',
+ 'Can\'t connect to MySQL server on',
+ 'MySQL server has gone away',
+ 'Cannot call SHOW INNODB STATUS',
+ 'Access denied',
+ 'AutoCommit',
+ 'Lost connection to MySQL server',
+ 'Too many connections',
+);
+
+if ( !$opts{n} ) {
+ require Term::ReadLine;
+ $term = Term::ReadLine->new('innotop');
+}
+
+# Stores status, variables, innodb status, master/slave status etc.
+# Keyed on connection name. Each entry is a hashref of current and past data sets,
+# keyed on clock tick.
+my %vars;
+my %info_gotten = (); # Which things have been retrieved for the current clock tick.
+my %show_variables; # Stores SHOW VARIABLES for each cxn so we don't re-fetch.
+
+# Stores info on currently displayed queries: cxn, connection ID, query text,
+# user, and host.
+my @current_queries;
+
+my $lines_printed = 0;
+my $clock = 0; # Incremented with every wake-sleep cycle
+my $clearing_deadlocks = 0;
+
+# If terminal coloring is available, use it. The only function I want from
+# the module is the colored() function.
+eval {
+ if ( !$opts{n} ) {
+ if ( $windows ) {
+ require Win32::Console::ANSI;
+ }
+ require Term::ANSIColor;
+ import Term::ANSIColor qw(colored);
+ $have_color = 1;
+ }
+};
+if ( $EVAL_ERROR || $opts{n} ) {
+ # If there was an error, manufacture my own colored() function that does no
+ # coloring.
+ *colored = sub { pop @_; @_; };
+}
+
+if ( $opts{n} ) {
+ $clear_screen_sub = sub {};
+}
+elsif ( $windows ) {
+ $clear_screen_sub = sub { $lines_printed = 0; system("cls") };
+}
+else {
+ my $clear = `clear`;
+ $clear_screen_sub = sub { $lines_printed = 0; print $clear };
+}
+
+# ###########################################################################
+# Config storage. {{{2
+# ###########################################################################
+my %config = (
+ color => {
+ val => $have_color,
+ note => 'Whether to use terminal coloring',
+ conf => 'ALL',
+ pat => $bool_regex,
+ },
+ cmd_filter => {
+ val => 'Com_',
+ note => 'Prefix for values in C mode',
+ conf => [qw(C)],
+ },
+ plugin_dir => {
+ val => "$homepath/.innotop/plugins",
+ note => 'Directory where plugins can be found',
+ conf => 'ALL',
+ },
+ show_percent => {
+ val => 1,
+ note => 'Show the % symbol after percentages',
+ conf => 'ALL',
+ pat => $bool_regex,
+ },
+ skip_innodb => {
+ val => 0,
+ note => 'Disable SHOW INNODB STATUS',
+ conf => 'ALL',
+ pat => $bool_regex,
+ },
+ S_func => {
+ val => 's',
+ note => 'What to display in S mode: graph, status, pivoted status',
+ conf => [qw(S)],
+ pat => qr/^[gsv]$/,
+ },
+ cxn_timeout => {
+ val => 28800,
+ note => 'Connection timeout for keeping unused connections alive',
+ conf => 'ALL',
+ pat => $int_regex,
+ },
+ graph_char => {
+ val => '*',
+ note => 'Character for drawing graphs',
+ conf => [ qw(S) ],
+ pat => qr/^.$/,
+ },
+ show_cxn_errors_in_tbl => {
+ val => 1,
+ note => 'Whether to display connection errors as rows in the table',
+ conf => 'ALL',
+ pat => $bool_regex,
+ },
+ hide_hdr => {
+ val => 0,
+ note => 'Whether to show column headers',
+ conf => 'ALL',
+ pat => $bool_regex,
+ },
+ show_cxn_errors => {
+ val => 1,
+ note => 'Whether to print connection errors to STDOUT',
+ conf => 'ALL',
+ pat => $bool_regex,
+ },
+ readonly => {
+ val => 1,
+ note => 'Whether the config file is read-only',
+ conf => [ qw() ],
+ pat => $bool_regex,
+ },
+ global => {
+ val => 1,
+ note => 'Whether to show GLOBAL variables and status',
+ conf => 'ALL',
+ pat => $bool_regex,
+ },
+ header_highlight => {
+ val => 'bold',
+ note => 'How to highlight table column headers',
+ conf => 'ALL',
+ pat => qr/^(?:bold|underline)$/,
+ },
+ display_table_captions => {
+ val => 1,
+ note => 'Whether to put captions on tables',
+ conf => 'ALL',
+ pat => $bool_regex,
+ },
+ charset => {
+ val => 'ascii',
+ note => 'What type of characters should be displayed in queries (ascii, unicode, none)',
+ conf => 'ALL',
+ pat => qr/^(?:ascii|unicode|none)$/,
+ },
+ auto_wipe_dl => {
+ val => 0,
+ note => 'Whether to auto-wipe InnoDB deadlocks',
+ conf => 'ALL',
+ pat => $bool_regex,
+ },
+ max_height => {
+ val => 30,
+ note => '[Win32] Max window height',
+ conf => 'ALL',
+ },
+ debug => {
+ val => 0,
+ pat => $bool_regex,
+ note => 'Debug mode (more verbose errors, uses more memory)',
+ conf => 'ALL',
+ },
+ num_digits => {
+ val => 2,
+ pat => $int_regex,
+ note => 'How many digits to show in fractional numbers and percents',
+ conf => 'ALL',
+ },
+ debugfile => {
+ val => "$homepath/.innotop/core_dump",
+ note => 'A debug file in case you are interested in error output',
+ },
+ show_statusbar => {
+ val => 1,
+ pat => $bool_regex,
+ note => 'Whether to show the status bar in the display',
+ conf => 'ALL',
+ },
+ mode => {
+ val => "A",
+ note => "Which mode to start in",
+ cmdline => 1,
+ },
+ status_inc => {
+ val => 0,
+ note => 'Whether to show raw or incremental values for status variables',
+ pat => $bool_regex,
+ },
+ interval => {
+ val => 10,
+ pat => qr/^(?:(?:\d*?[1-9]\d*(?:\.\d*)?)|(?:\d*\.\d*?[1-9]\d*))$/,
+ note => "The interval at which the display will be refreshed. Fractional values allowed.",
+ },
+ num_status_sets => {
+ val => 9,
+ pat => $int_regex,
+ note => 'How many sets of STATUS and VARIABLES values to show',
+ conf => [ qw(S) ],
+ },
+ S_set => {
+ val => 'general',
+ pat => qr/^\w+$/,
+ note => 'Which set of variables to display in S (Variables & Status) mode',
+ conf => [ qw(S) ],
+ },
+ timeformat => {
+ val => '%Y-%m-%dT%H:%M:%S',
+ pat => qr//,
+ note => 'The strftime() timestamp format to write in -n mode',
+ },
+ spark => {
+ val => 10,
+ note => 'How long to make status variable sparklines',
+ conf => 'ALL',
+ pat => $int_regex,
+ },
+);
+
+# ###########################################################################
+# Config file sections {{{2
+# The configuration file is broken up into sections like a .ini file. This
+# variable defines those sections and the subroutines responsible for reading
+# and writing them.
+# ###########################################################################
+my %config_file_sections = (
+ plugins => {
+ reader => \&load_config_plugins,
+ writer => \&save_config_plugins,
+ },
+ group_by => {
+ reader => \&load_config_group_by,
+ writer => \&save_config_group_by,
+ },
+ filters => {
+ reader => \&load_config_filters,
+ writer => \&save_config_filters,
+ },
+ active_filters => {
+ reader => \&load_config_active_filters,
+ writer => \&save_config_active_filters,
+ },
+ visible_tables => {
+ reader => \&load_config_visible_tables,
+ writer => \&save_config_visible_tables,
+ },
+ sort_cols => {
+ reader => \&load_config_sort_cols,
+ writer => \&save_config_sort_cols,
+ },
+ active_columns => {
+ reader => \&load_config_active_columns,
+ writer => \&save_config_active_columns,
+ },
+ tbl_meta => {
+ reader => \&load_config_tbl_meta,
+ writer => \&save_config_tbl_meta,
+ },
+ general => {
+ reader => \&load_config_config,
+ writer => \&save_config_config,
+ },
+ connections => {
+ reader => \&load_config_connections,
+ writer => \&save_config_connections,
+ },
+ active_connections => {
+ reader => \&load_config_active_connections,
+ writer => \&save_config_active_connections,
+ },
+ server_groups => {
+ reader => \&load_config_server_groups,
+ writer => \&save_config_server_groups,
+ },
+ active_server_groups => {
+ reader => \&load_config_active_server_groups,
+ writer => \&save_config_active_server_groups,
+ },
+ max_values_seen => {
+ reader => \&load_config_mvs,
+ writer => \&save_config_mvs,
+ },
+ varsets => {
+ reader => \&load_config_varsets,
+ writer => \&save_config_varsets,
+ },
+ colors => {
+ reader => \&load_config_colors,
+ writer => \&save_config_colors,
+ },
+ stmt_sleep_times => {
+ reader => \&load_config_stmt_sleep_times,
+ writer => \&save_config_stmt_sleep_times,
+ },
+);
+
+# Config file sections have some dependencies, so they have to be read/written in order.
+my @ordered_config_file_sections = qw(general plugins filters active_filters tbl_meta
+ connections active_connections server_groups active_server_groups max_values_seen
+ active_columns sort_cols visible_tables varsets colors stmt_sleep_times
+ group_by);
+
+# All events for which plugins may register themselves. Entries are arrayrefs.
+my %event_listener_for = map { $_ => [] }
+ qw(
+ extract_values
+ set_to_tbl_pre_filter set_to_tbl_pre_sort set_to_tbl_pre_group
+ set_to_tbl_pre_colorize set_to_tbl_pre_transform set_to_tbl_pre_pivot
+ set_to_tbl_pre_create set_to_tbl_post_create
+ draw_screen
+ );
+
+# All variables to which plugins have access.
+my %pluggable_vars = (
+ action_for => \%action_for,
+ agg_funcs => \%agg_funcs,
+ config => \%config,
+ connections => \%connections,
+ dbhs => \%dbhs,
+ filters => \%filters,
+ modes => \%modes,
+ server_groups => \%server_groups,
+ tbl_meta => \%tbl_meta,
+ trans_funcs => \%trans_funcs,
+ var_sets => \%var_sets,
+);
+
+# ###########################################################################
+# Contains logic to generate prepared statements for a given function for a
+# given DB connection. Returns a $sth.
+# ###########################################################################
+my %stmt_maker_for = (
+ INDEX_STATISTICS => sub {
+ my ( $dbh ) = @_;
+ # Detect whether there's a Percona Server with INFORMATION_SCHEMA.INDEX_STATISTICS
+ # and if not, just select nothing.
+ my $sth;
+ eval { # This can fail if the table doesn't exist, INFORMATION_SCHEMA doesn't exist, etc.
+ my $cols = $dbh->selectall_arrayref(q{SHOW /*innotop*/ COLUMNS FROM INFORMATION_SCHEMA.INDEX_STATISTICS});
+ if ( @$cols ) {
+ $sth = $dbh->prepare(q{SELECT /*innotop*/ * FROM INFORMATION_SCHEMA.INDEX_STATISTICS});
+ }
+ };
+ $sth ||= $dbh->prepare(q{SELECT /*innotop*/ '' FROM DUAL WHERE 1 = 0});
+ return $sth;
+ },
+ INDEX_TABLE_STATISTICS => sub {
+ my ( $dbh ) = @_;
+ # Detect whether there's a Percona Server with INFORMATION_SCHEMA.INDEX_STATISTICS
+ # and if not, just select nothing.
+ my $sth;
+ eval { # This can fail if the table doesn't exist, INFORMATION_SCHEMA doesn't exist, etc.
+ my $cols = $dbh->selectall_arrayref(q{SHOW /*innotop*/ COLUMNS FROM INFORMATION_SCHEMA.INDEX_STATISTICS});
+ if ( @$cols ) {
+ $sth = $dbh->prepare(q{SELECT /*innotop*/ L.TABLE_SCHEMA, L.TABLE_NAME, }
+ . q{SUM(L.ROWS_READ) AS ROWS_READ, SUM(R.ROWS_READ) AS ROWS_READ_FROM_INDEXES, }
+ . q{SUM(L.ROWS_CHANGED) AS ROWS_CHANGED, }
+ . q{SUM(L.ROWS_CHANGED_X_INDEXES) AS ROWS_CHANGED_X_INDEXES }
+ . q{FROM INFORMATION_SCHEMA.TABLE_STATISTICS AS L LEFT JOIN INFORMATION_SCHEMA.INDEX_STATISTICS AS R }
+ . q{USING(TABLE_SCHEMA, TABLE_NAME) GROUP BY L.TABLE_SCHEMA, L.TABLE_NAME});
+ }
+ };
+ $sth ||= $dbh->prepare(q{SELECT /*innotop*/ '' FROM DUAL WHERE 1 = 0});
+ return $sth;
+ },
+ INNODB_BLOCKED_BLOCKER => sub {
+ my ( $dbh ) = @_;
+ # Detect whether the server supports the I_S tables and if not, just select nothing.
+ my $sth;
+ eval { # This can fail if the table doesn't exist, INFORMATION_SCHEMA doesn't exist, etc.
+ my $cols = $dbh->selectall_arrayref(q{SHOW /*innotop*/ COLUMNS FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS});
+ if ( @$cols ) {
+ if ($dbh->{mysql_serverinfo} =~ /^5.1/) {
+ $sth = $dbh->prepare(q{
+ SELECT /*innotop*/
+ r.trx_mysql_thread_id AS waiting_thread,
+ r.trx_query AS waiting_query,
+ "n/a" AS waiting_rows_modified,
+ TIMESTAMPDIFF(SECOND, r.trx_started, NOW()) AS waiting_age,
+ TIMESTAMPDIFF(SECOND, r.trx_wait_started, NOW()) AS waiting_wait_secs,
+ rp.user AS waiting_user,
+ rp.host AS waiting_host,
+ rp.db AS waiting_db,
+ b.trx_mysql_thread_id AS blocking_thread,
+ b.trx_query AS blocking_query,
+ "n/a" AS blocking_rows_modified,
+ TIMESTAMPDIFF(SECOND, b.trx_started, NOW()) AS blocking_age,
+ TIMESTAMPDIFF(SECOND, b.trx_wait_started, NOW()) AS blocking_wait_secs,
+ bp.user AS blocking_user,
+ bp.host AS blocking_host,
+ bp.db AS blocking_db,
+ CONCAT(bp.command, IF(bp.command = 'Sleep', CONCAT(' ', bp.time), '')) AS blocking_status,
+ CONCAT(lock_mode, ' ', lock_type, ' ', lock_table, '(', lock_index, ')') AS lock_info
+ FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS w
+ JOIN INFORMATION_SCHEMA.INNODB_TRX b ON b.trx_id = w.blocking_trx_id
+ JOIN INFORMATION_SCHEMA.INNODB_TRX r ON r.trx_id = w.requesting_trx_id
+ JOIN INFORMATION_SCHEMA.INNODB_LOCKS l ON l.lock_id = w.requested_lock_id
+ LEFT JOIN INFORMATION_SCHEMA.PROCESSLIST bp ON bp.id = b.trx_mysql_thread_id
+ LEFT JOIN INFORMATION_SCHEMA.PROCESSLIST rp ON rp.id = r.trx_mysql_thread_id
+ });
+ } else {
+ $sth = $dbh->prepare(q{
+ SELECT /*innotop*/
+ r.trx_mysql_thread_id AS waiting_thread,
+ r.trx_query AS waiting_query,
+ r.trx_rows_modified AS waiting_rows_modified,
+ TIMESTAMPDIFF(SECOND, r.trx_started, NOW()) AS waiting_age,
+ TIMESTAMPDIFF(SECOND, r.trx_wait_started, NOW()) AS waiting_wait_secs,
+ rp.user AS waiting_user,
+ rp.host AS waiting_host,
+ rp.db AS waiting_db,
+ b.trx_mysql_thread_id AS blocking_thread,
+ b.trx_query AS blocking_query,
+ b.trx_rows_modified AS blocking_rows_modified,
+ TIMESTAMPDIFF(SECOND, b.trx_started, NOW()) AS blocking_age,
+ TIMESTAMPDIFF(SECOND, b.trx_wait_started, NOW()) AS blocking_wait_secs,
+ bp.user AS blocking_user,
+ bp.host AS blocking_host,
+ bp.db AS blocking_db,
+ CONCAT(bp.command, IF(bp.command = 'Sleep', CONCAT(' ', bp.time), '')) AS blocking_status,
+ CONCAT(lock_mode, ' ', lock_type, ' ', lock_table, '(', lock_index, ')') AS lock_info
+ FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS w
+ JOIN INFORMATION_SCHEMA.INNODB_TRX b ON b.trx_id = w.blocking_trx_id
+ JOIN INFORMATION_SCHEMA.INNODB_TRX r ON r.trx_id = w.requesting_trx_id
+ JOIN INFORMATION_SCHEMA.INNODB_LOCKS l ON l.lock_id = w.requested_lock_id
+ LEFT JOIN INFORMATION_SCHEMA.PROCESSLIST bp ON bp.id = b.trx_mysql_thread_id
+ LEFT JOIN INFORMATION_SCHEMA.PROCESSLIST rp ON rp.id = r.trx_mysql_thread_id
+ });
+ }
+ }
+ };
+ $sth ||= $dbh->prepare(q{SELECT /*innotop*/ '' FROM DUAL WHERE 1 = 0});
+ return $sth;
+ },
+ INNODB_STATUS => sub {
+ my ( $dbh ) = @_;
+ return $dbh->prepare(version_ge( $dbh, '5.0.0' )
+ ? 'SHOW /*innotop*/ ENGINE INNODB STATUS'
+ : 'SHOW /*innotop*/ INNODB STATUS');
+ },
+ SHOW_VARIABLES => sub {
+ my ( $dbh ) = @_;
+ return $dbh->prepare($config{global}->{val} && version_ge( $dbh, '4.0.3' )
+ ? 'SHOW /*innotop*/ GLOBAL VARIABLES'
+ : 'SHOW /*innotop*/ VARIABLES');
+ },
+ SHOW_STATUS => sub {
+ my ( $dbh ) = @_;
+ return $dbh->prepare($config{global}->{val} && version_ge( $dbh, '5.0.2' )
+ ? 'SHOW /*innotop*/ GLOBAL STATUS'
+ : 'SHOW /*innotop*/ STATUS');
+ },
+ KILL_QUERY => sub {
+ my ( $dbh ) = @_;
+ return $dbh->prepare(version_ge( $dbh, '5.0.0' )
+ ? 'KILL /*innotop*/ QUERY ?'
+ : 'KILL /*innotop*/ ?');
+ },
+ SHOW_MASTER_LOGS => sub {
+ my ( $dbh ) = @_;
+ return $dbh->prepare('SHOW /*innotop*/ MASTER LOGS');
+ },
+ SHOW_MASTER_STATUS => sub {
+ my ( $dbh ) = @_;
+ return $dbh->prepare('SHOW /*innotop*/ MASTER STATUS');
+ },
+ SHOW_SLAVE_STATUS => sub {
+ my ( $dbh ) = @_;
+ return $dbh->prepare('SHOW /*innotop*/ SLAVE STATUS');
+ },
+ GET_CHANNELS => sub {
+ my ( $dbh ) = @_;
+ return $dbh->prepare(version_ge( $dbh, '5.7.0' )
+ ? 'select CHANNEL_NAME from performance_schema.replication_applier_status where CHANNEL_NAME regexp "^[a-zA-Z].*";'
+ : 'select "no_channels"');
+ },
+ KILL_CONNECTION => sub {
+ my ( $dbh ) = @_;
+ return $dbh->prepare(version_ge( $dbh, '5.0.0' )
+ ? 'KILL /*innotop*/ CONNECTION ?'
+ : 'KILL /*innotop*/ ?');
+ },
+ OPEN_TABLES => sub {
+ my ( $dbh ) = @_;
+ return version_ge($dbh, '4.0.0')
+ ? $dbh->prepare('SHOW /*innotop*/ OPEN TABLES')
+ : undef;
+ },
+ PROCESSLIST => sub {
+ my ( $dbh ) = @_;
+ # In newer versions of the server, use INFORMATION_SCHEMA table if it exists,
+ # and use the TIME_MS column (in Percona Server) if that exists.
+ my $sth;
+ eval { # This can fail if the table doesn't exist, INFORMATION_SCHEMA doesn't exist, etc.
+ my $cols = $dbh->selectall_arrayref(q{SHOW /*innotop*/ COLUMNS FROM INFORMATION_SCHEMA.PROCESSLIST LIKE 'TIME_MS'});
+ if ( @$cols ) { # The TIME_MS colum exists
+ $sth = $dbh->prepare(q{SELECT /*innotop*/ ID, USER, HOST, DB, COMMAND, CASE WHEN TIME_MS/1000 > 365*86400 THEN TIME ELSE TIME_MS/1000 END AS TIME, STATE, INFO FROM INFORMATION_SCHEMA.PROCESSLIST});
+ }
+ };
+ $sth ||= $dbh->prepare('SHOW /*innotop*/ FULL PROCESSLIST');
+ return $sth;
+ },
+ PROCESSLIST_NO_IS => sub {
+ my ( $dbh ) = @_;
+ # We do not use INFORMATION_SCHEMA table because it doesn't show slave
+ # SQL statements. http://bugs.mysql.com/66401
+ my $sth = $dbh->prepare('SHOW /*innotop*/ FULL PROCESSLIST');
+ return $sth;
+ },
+ TABLE_STATISTICS => sub {
+ my ( $dbh ) = @_;
+ # Detect whether there's a Percona Server with INFORMATION_SCHEMA.TABLE_STATISTICS
+ # and if not, just select nothing.
+ my $sth;
+ eval { # This can fail if the table doesn't exist, INFORMATION_SCHEMA doesn't exist, etc.
+ my $cols = $dbh->selectall_arrayref(q{SHOW /*innotop*/ COLUMNS FROM INFORMATION_SCHEMA.TABLE_STATISTICS});
+ if ( @$cols ) {
+ $sth = $dbh->prepare(q{SELECT /*innotop*/ * FROM INFORMATION_SCHEMA.TABLE_STATISTICS});
+ }
+ };
+ $sth ||= $dbh->prepare(q{SELECT /*innotop*/ '' FROM DUAL WHERE 1 = 0});
+ return $sth;
+ },
+);
+
+# Plugins!
+my %plugins = (
+);
+
+# ###########################################################################
+# Run the program {{{1
+# ###########################################################################
+sub main {
+ # This config variable is only useful for MS Windows because its terminal
+ # can't tell how tall it is.
+ if ( !$windows ) {
+ delete $config{max_height};
+ }
+
+ # Try to lower my priority.
+ eval { setpriority(0, 0, getpriority(0, 0) + 10); };
+
+ # Print stuff to the screen immediately, don't wait for a newline.
+ $OUTPUT_AUTOFLUSH = 1;
+
+ # Clear the screen and load the configuration.
+ $clear_screen_sub->();
+ load_config();
+
+ # Override config variables with command-line options
+ my %cmdline =
+ map { $_->{c} => $opts{$_->{k}} }
+ grep { exists $_->{c} && exists $opts{$_->{k}} }
+ @opt_spec;
+
+ foreach my $name (keys %cmdline) {
+ next if not defined $cmdline{$name};
+ my $val = $cmdline{$name};
+ if ( exists($config{$name}) and (!$config{$name}->{pat} or $val =~ m/$config{$name}->{pat}/ )) {
+ $config{$name}->{val} = $val;
+ }
+ }
+
+ post_process_tbl_meta();
+
+ # Make sure no changes are written to config file in non-interactive mode.
+ if ( $opts{n} ) {
+ $config{readonly}->{val} = 1;
+ }
+
+ eval {
+
+ # Open the file for InnoDB status
+ if ( @ARGV ) {
+ my $filename = shift @ARGV;
+ open $file, "<", $filename
+ or die "Cannot open '$filename': $OS_ERROR";
+ }
+
+ # In certain modes we might have to collect data for two cycles
+ # before printing anything out, so we need to bump up the count one.
+ if ( $opts{n} && $opts{count} && $config{status_inc}->{val}
+ && $config{mode}->{val} =~ m/[S]/ )
+ {
+ $opts{count}++;
+ }
+
+ while (++$clock) {
+
+ my $mode = $config{mode}->{val} || 'Q';
+ if ( !$modes{$mode} ) {
+ die "Mode '$mode' doesn't exist; try one of these:\n"
+ . join("\n", map { " $_ $modes{$_}->{hdr}" } sort keys %modes)
+ . "\n";
+ }
+
+ if ( !$opts{n} ) {
+ @last_term_size = @this_term_size;
+ @this_term_size = Term::ReadKey::GetTerminalSize(\*STDOUT);
+ if ( $windows ) {
+ $this_term_size[0]--;
+ $this_term_size[1]
+ = min($this_term_size[1], $config{max_height}->{val});
+ }
+ die("Can't read terminal size") unless @this_term_size;
+ }
+
+ # If there's no connection to a database server, we need to fix that...
+ if ( !%connections ) {
+ print "You have not defined any database connections.\n\n";
+ add_new_dsn();
+ }
+
+ # See whether there are any connections defined for this mode. If there's only one
+ # connection total, assume the user wants to just use innotop for a single server
+ # and don't ask which server to connect to. Also, if we're monitoring from a file,
+ # we just use the first connection.
+ if ( !get_connections() ) {
+ if ( $file || 1 == scalar keys %connections ) {
+ $modes{$config{mode}->{val}}->{connections} = [ keys %connections ];
+ }
+ else {
+ choose_connections();
+ }
+ }
+
+ # Term::ReadLine might have re-set $OUTPUT_AUTOFLUSH.
+ $OUTPUT_AUTOFLUSH = 1;
+
+ # Prune old data
+ my $sets = $config{num_status_sets}->{val};
+ foreach my $store ( values %vars ) {
+ delete @{$store}{ grep { $_ < $clock - $sets } keys %$store };
+ }
+ %info_gotten = ();
+
+ # Call the subroutine to display this mode.
+ $modes{$mode}->{display_sub}->();
+
+ # It may be time to quit now.
+ if ( $opts{count} && $clock >= $opts{count} ) {
+ finish();
+ }
+
+ # RECON: Try to reconnect failed connections, while the user sees no lag.
+ foreach my $cxn ( grep { $dbhs{$_}->{failed} } keys %dbhs ) {
+ eval { connect_to_db($cxn); }; # Ignore errors entirely here.
+ }
+
+ # Wait for a bit.
+ if ( $opts{n} ) {
+ sleep($config{interval}->{val});
+ }
+ else {
+ ReadMode('cbreak');
+ $char = ReadKey($config{interval}->{val});
+ ReadMode('normal');
+ }
+
+ # Handle whatever action the key indicates.
+ do_key_action();
+
+ }
+ };
+ if ( $EVAL_ERROR ) {
+ core_dump( $EVAL_ERROR );
+ }
+ finish();
+}
+main() unless caller(); # make me testable!
+
+# Subroutines {{{1
+# Mode functions{{{2
+# switch_mode {{{3
+sub switch_mode {
+ my $mode = shift;
+ $config{mode}->{val} = $mode;
+}
+
+# Prompting functions {{{2
+# prompt_list {{{3
+# Prompts the user for a value, given a question, initial value,
+# a completion function and a hashref of hints.
+sub prompt_list {
+ die "Can't call in non-interactive mode" if $opts{n};
+ my ( $question, $init, $completion, $hints ) = @_;
+ if ( $hints ) {
+ # Figure out how wide the table will be
+ my $max_name = max(map { length($_) } keys %$hints );
+ $max_name ||= 0;
+ $max_name += 3;
+ my @meta_rows = create_table2(
+ [ sort keys %$hints ],
+ { map { $_ => $_ } keys %$hints },
+ { map { $_ => trunc($hints->{$_}, $this_term_size[0] - $max_name) } keys %$hints },
+ { sep => ' ' });
+ if (@meta_rows > 10) {
+ # Try to split and stack the meta rows next to each other
+ my $split = int(@meta_rows / 2);
+ @meta_rows = stack_next(
+ [@meta_rows[0..$split - 1]],
+ [@meta_rows[$split..$#meta_rows]],
+ { pad => ' | '},
+ );
+ }
+ print join( "\n",
+ '',
+ map { ref $_ ? colored(@$_) : $_ } create_caption('Choose from', @meta_rows), ''),
+ "\n";
+ }
+ $term->Attribs->{completion_function} = $completion;
+ my $answer = $term->readline("$question: ", $init);
+ $OUTPUT_AUTOFLUSH = 1;
+ $answer = '' if !defined($answer);
+ $answer =~ s/\s+$//;
+ return $answer;
+}
+
+# prompt {{{3
+# Prints out a prompt and reads from the keyboard, then validates with the
+# validation regex until the input is correct.
+sub prompt {
+ die "Can't call in non-interactive mode" if $opts{n};
+ my ( $prompt, $regex, $init, $completion ) = @_;
+ my $response;
+ my $success = 0;
+ do {
+ if ( $completion ) {
+ $term->Attribs->{completion_function} = $completion;
+ }
+ $response = $term->readline("$prompt: ", $init);
+ if ( $regex && $response !~ m/$regex/ ) {
+ print "Invalid response.\n\n";
+ }
+ else {
+ $success = 1;
+ }
+ } while ( !$success );
+ $OUTPUT_AUTOFLUSH = 1;
+ $response =~ s/\s+$//;
+ return $response;
+}
+
+# prompt_noecho {{{3
+# Unfortunately, suppressing echo with Term::ReadLine isn't reliable; the user might not
+# have that library, or it might not support that feature.
+sub prompt_noecho {
+ my ( $prompt ) = @_;
+ print colored("$prompt: ", 'underline');
+ my $response;
+ ReadMode('noecho');
+ $response = <STDIN>;
+ chomp($response);
+ ReadMode('normal');
+ return $response;
+}
+
+# noecho_password {{{3
+# read password for command line parameters with noecho
+sub noecho_password {
+ my $prompt = shift @_;
+ local $OUTPUT_AUTOFLUSH = 1;
+ my $response;
+ eval {
+ if ( $windows ) {
+ require Win32::Console::ANSI;
+ }
+ require Term::ANSIColor;
+ import Term::ANSIColor qw(colored);
+ $response = prompt_noecho($prompt);
+ print "\n" or die
+ "Cannot print: $OS_ERROR";
+ };
+
+ if ( $EVAL_ERROR ) {
+ die "Cannot read respose; is Term::ReadKey installed? $EVAL_ERROR";
+ }
+ return $response;
+}
+
+# do_key_action {{{3
+# Depending on whether a key was read, do something. Keys have certain
+# actions defined in lookup tables. Each mode may have its own lookup table,
+# which trumps the global table -- so keys can be context-sensitive. The key
+# may be read and written in a subroutine, so it's a global.
+sub do_key_action {
+ if ( defined $char ) {
+ my $mode = $config{mode}->{val};
+ my $action
+ = defined($modes{$mode}->{action_for}->{$char}) ? $modes{$mode}->{action_for}->{$char}->{action}
+ : defined($action_for{$char}) ? $action_for{$char}->{action}
+ : sub{};
+ $action->();
+ }
+}
+
+# pause {{{3
+sub pause {
+ die "Can't call in non-interactive mode" if $opts{n};
+ my $msg = shift;
+ print defined($msg) ? "\n$msg" : "\nPress any key to continue";
+ ReadMode('cbreak');
+ my $char = ReadKey(0);
+ ReadMode('normal');
+ return $char;
+}
+
+# reverse_sort {{{3
+sub reverse_sort {
+ my $tbl = shift;
+ $tbl_meta{$tbl}->{sort_dir} *= -1;
+}
+
+# select_cxn {{{3
+# Selects connection(s). If the mode (or argument list) has only one, returns
+# it without prompt.
+sub select_cxn {
+ my ( $prompt, @cxns ) = @_;
+ if ( !@cxns ) {
+ @cxns = get_connections();
+ }
+ if ( @cxns == 1 ) {
+ return $cxns[0];
+ }
+ my $choices = prompt_list(
+ $prompt,
+ $cxns[0],
+ sub{ return @cxns },
+ { map { $_ => $connections{$_}->{dsn} } @cxns });
+ my @result = unique(grep { my $a = $_; grep { $_ eq $a } @cxns } split(/\s+/, $choices));
+ return @result;
+}
+
+# kill_query {{{3
+# Kills a connection, or on new versions, optionally a query but not connection.
+sub kill_query {
+ my ( $q_or_c ) = @_;
+
+ my $info = choose_thread(
+ sub { 1 },
+ 'Select a thread to kill the ' . $q_or_c,
+ );
+ return unless $info;
+ my $distill = distill($info->{query} || '');
+ $distill = " running '$distill'" if $distill;
+ return unless pause("Kill $info->{id} ("
+ . ($info->{user} || '')
+ . '@'
+ . ($info->{host} || '')
+ . ")$distill ? ") =~ m/y/i;
+
+ eval {
+ do_stmt($info->{cxn}, $q_or_c eq 'QUERY' ? 'KILL_QUERY' : 'KILL_CONNECTION', $info->{id} );
+ };
+
+ if ( $EVAL_ERROR ) {
+ print "\nError: $EVAL_ERROR";
+ pause();
+ }
+}
+
+# set_display_precision {{{3
+sub set_display_precision {
+ my $dir = shift;
+ $config{num_digits}->{val} = min(9, max(0, $config{num_digits}->{val} + $dir));
+}
+
+sub toggle_visible_table {
+ my ( $mode, $table ) = @_;
+ my $visible = $modes{$mode}->{visible_tables};
+ if ( grep { $_ eq $table } @$visible ) {
+ $modes{$mode}->{visible_tables} = [ grep { $_ ne $table } @$visible ];
+ }
+ else {
+ unshift @$visible, $table;
+ }
+ $modes{$mode}->{cust}->{visible_tables} = 1;
+}
+
+# toggle_filter{{{3
+sub toggle_filter {
+ my ( $tbl, $filter ) = @_;
+ my $filters = $tbl_meta{$tbl}->{filters};
+ if ( grep { $_ eq $filter } @$filters ) {
+ $tbl_meta{$tbl}->{filters} = [ grep { $_ ne $filter } @$filters ];
+ }
+ else {
+ push @$filters, $filter;
+ }
+ $tbl_meta{$tbl}->{cust}->{filters} = 1;
+}
+
+# toggle_config {{{3
+sub toggle_config {
+ my ( $key ) = @_;
+ $config{$key}->{val} ^= 1;
+}
+
+# create_deadlock {{{3
+sub create_deadlock {
+ $clear_screen_sub->();
+
+ print "This function will deliberately cause a small deadlock, "
+ . "clearing deadlock information from the InnoDB monitor.\n\n";
+
+ my $answer = prompt("Are you sure you want to proceed? Say 'y' if you do");
+ return 0 unless $answer eq 'y';
+
+ my ( $cxn ) = select_cxn('Clear on which server? ');
+ return unless $cxn && exists($connections{$cxn});
+
+ clear_deadlock($cxn);
+}
+
+# deadlock_thread {{{3
+sub deadlock_thread {
+ my ( $id, $tbl, $cxn ) = @_;
+
+ eval {
+ my $dbh = get_new_db_connection($cxn, 1);
+
+ # disable binary logging for this session
+ $dbh->do("set SQL_LOG_BIN=0");
+
+ my @stmts = (
+ "set transaction isolation level serializable",
+ (version_ge($dbh, '4.0.11') ? "start transaction" : 'begin'),
+ "select * from $tbl where a = $id",
+ "update $tbl set a = $id where a <> $id",
+ );
+
+ foreach my $stmt (@stmts[0..2]) {
+ $dbh->do($stmt);
+ }
+ sleep(1 + $id);
+ $dbh->do($stmts[-1]);
+ };
+ if ( $EVAL_ERROR ) {
+ if ( $EVAL_ERROR !~ m/Deadlock found/ ) {
+ die $EVAL_ERROR;
+ }
+ }
+ exit(0);
+}
+
+# Purges unused binlogs on the master, up to but not including the latest log.
+# TODO: guess which connections are slaves of a given master.
+sub purge_master_logs {
+ my @cxns = get_connections();
+
+ get_master_slave_status(@cxns);
+
+ # Toss out the rows that don't have master/slave status...
+ my @vars =
+ grep { $_ && ($_->{file} || $_->{master_host}) }
+ map { $vars{$_}->{$clock} } @cxns;
+ @cxns = map { $_->{cxn} } @vars;
+
+ # Figure out which master to purge ons.
+ my @masters = map { $_->{cxn} } grep { $_->{file} } @vars;
+ my ( $master ) = select_cxn('Which master?', @masters );
+ return unless $master;
+ my ($master_status) = grep { $_->{cxn} eq $master } @vars;
+
+ # Figure out the result order (not lexical order) of master logs.
+ my @master_logs = get_master_logs($master);
+ my $i = 0;
+ my %master_logs = map { $_->{log_name} => $i++ } @master_logs;
+
+ # Ask which slave(s) are reading from this master.
+ my @slave_status = grep { $_->{master_host} } @vars;
+ my @slaves = map { $_->{cxn} } @slave_status;
+ @slaves = select_cxn("Which slaves are reading from $master?", @slaves);
+ @slave_status = grep { my $item = $_; grep { $item->{cxn} eq $_ } @slaves } @slave_status;
+ return unless @slave_status;
+
+ # Find the minimum binary log in use.
+ my $min_log = min(map { $master_logs{$_->{master_log_file}} } @slave_status);
+ my $log_name = $master_logs[$min_log]->{log_name};
+
+ my $stmt = "PURGE MASTER LOGS TO '$log_name'";
+ send_cmd_to_servers($stmt, 0, 'PURGE {MASTER | BINARY} LOGS {TO "log_name" | BEFORE "date"}', [$master]);
+}
+
+sub send_cmd_to_servers {
+ my ( $cmd, $all, $hint, $cxns ) = @_;
+ if ( $all ) {
+ @$cxns = get_connections();
+ }
+ elsif ( !@$cxns ) {
+ @$cxns = select_cxn('Which servers?', @$cxns);
+ }
+ if ( $hint ) {
+ print "\nHint: $hint\n";
+ }
+ $cmd = prompt('Command to send', undef, $cmd);
+ foreach my $cxn ( @$cxns ) {
+ eval {
+ my $sth = do_query($cxn, $cmd);
+ };
+ if ( $EVAL_ERROR ) {
+ print "Error from $cxn: $EVAL_ERROR\n";
+ }
+ else {
+ print "Success on $cxn\n";
+ }
+ }
+ pause();
+}
+
+# Display functions {{{2
+
+sub set_s_mode {
+ my ( $func ) = @_;
+ $clear_screen_sub->();
+ $config{S_func}->{val} = $func;
+}
+
+# start_S_mode {{{3
+sub start_S_mode {
+ $clear_screen_sub->();
+ switch_mode('S');
+}
+
+# display_A {{{3
+sub display_A {
+ my @display_lines;
+ my @cxns = get_connections();
+ get_processlist_stats(@cxns);
+ get_status_info(@cxns);
+ get_master_slave_status(@cxns);
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+ my @health_dashboard;
+ my %rows_for = (
+ health_dashboard => \@health_dashboard,
+ );
+
+ foreach my $cxn ( @cxns ) {
+ # Get the status variables
+ my $set = $vars{$cxn}->{$clock};
+ my $pre = $vars{$cxn}->{$clock-1} || $set;
+ my $hash = extract_values($set, $set, $pre, 'health_dashboard');
+ # Make QPS and Miss show now, not overall.
+ if ( exists $vars{$cxn}->{$clock - 1} ) {
+ my $inc = inc(0, $cxn);
+ my $hash2 = extract_values($inc, $set, $pre, 'health_dashboard');
+ map { $hash->{$_} = $hash2->{$_} } qw(qps miss_rate);
+ }
+ push @health_dashboard, $hash;
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ draw_screen(\@display_lines);
+}
+
+# display_B {{{3
+sub display_B {
+ my @display_lines;
+ my @cxns = get_connections();
+ get_status_info(@cxns);
+ get_innodb_status(\@cxns);
+
+ my @buffer_pool;
+ my @page_statistics;
+ my @insert_buffers;
+ my @adaptive_hash_index;
+ my %rows_for = (
+ buffer_pool => \@buffer_pool,
+ page_statistics => \@page_statistics,
+ insert_buffers => \@insert_buffers,
+ adaptive_hash_index => \@adaptive_hash_index,
+ );
+
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ foreach my $cxn ( @cxns ) {
+ my $set = $vars{$cxn}->{$clock};
+ my $pre = $vars{$cxn}->{$clock-1} || $set;
+
+ if ( $set->{IB_bp_complete} ) {
+ if ( $wanted{buffer_pool} ) {
+ push @buffer_pool, extract_values($set, $set, $pre, 'buffer_pool');
+ }
+ if ( $wanted{page_statistics} ) {
+ push @page_statistics, extract_values($set, $set, $pre, 'page_statistics');
+ }
+ }
+ if ( $set->{IB_ib_complete} ) {
+ if ( $wanted{insert_buffers} ) {
+ push @insert_buffers, extract_values(
+ $config{status_inc}->{val} ? inc(0, $cxn) : $set, $set, $pre,
+ 'insert_buffers');
+ }
+ if ( $wanted{adaptive_hash_index} ) {
+ push @adaptive_hash_index, extract_values($set, $set, $pre, 'adaptive_hash_index');
+ }
+ }
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ draw_screen(\@display_lines);
+}
+
+# display_C {{{3
+sub display_C {
+ my @display_lines;
+ my @cxns = get_connections();
+ get_status_info(@cxns);
+
+ my @cmd_summary;
+ my %rows_for = (
+ cmd_summary => \@cmd_summary,
+ );
+
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ # For now, I'm manually pulling these variables out and pivoting. Eventually a SQL-ish
+ # dialect should let me join a table to a grouped and pivoted table and do this more easily.
+ # TODO: make it so.
+ my $prefix = qr/^$config{cmd_filter}->{val}/; # TODO: this is a total hack
+ my @values;
+ my ($total, $last_total) = (0, 0);
+ foreach my $cxn ( @cxns ) {
+ my $set = $vars{$cxn}->{$clock};
+ my $pre = $vars{$cxn}->{$clock-1} || $set;
+ foreach my $key ( keys %$set ) {
+ next unless $key =~ m/$prefix/i;
+ my $val = $set->{$key};
+ next unless defined $val && $val =~ m/^\d+$/;
+ my $last_val = $val - ($pre->{$key} || 0);
+ $total += $val;
+ $last_total += $last_val;
+ push @values, {
+ name => $key,
+ value => $val,
+ last_value => $last_val,
+ };
+ }
+ }
+
+ # Add aggregation and turn into a real set TODO: total hack
+ if ( $wanted{cmd_summary} ) {
+ foreach my $value ( @values ) {
+ @{$value}{qw(total last_total)} = ($total, $last_total);
+ push @cmd_summary, extract_values($value, $value, $value, 'cmd_summary');
+ }
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ draw_screen(\@display_lines);
+}
+
+# display_D {{{3
+sub display_D {
+ my @display_lines;
+ my @cxns = get_connections();
+ get_status_info(@cxns);
+ get_innodb_status(\@cxns);
+
+ my @deadlock_transactions;
+ my @deadlock_locks;
+ my %rows_for = (
+ deadlock_transactions => \@deadlock_transactions,
+ deadlock_locks => \@deadlock_locks,
+ );
+
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ foreach my $cxn ( @cxns ) {
+ my $innodb_status = $vars{$cxn}->{$clock};
+ my $prev_status = $vars{$cxn}->{$clock-1} || $innodb_status;
+
+ if ( $innodb_status->{IB_dl_timestring} ) {
+
+ my $victim = $innodb_status->{IB_dl_rolled_back} || 0;
+
+ if ( %wanted ) {
+ foreach my $txn_id ( keys %{$innodb_status->{IB_dl_txns}} ) {
+ my $txn = $innodb_status->{IB_dl_txns}->{$txn_id};
+ my $pre = $prev_status->{IB_dl_txns}->{$txn_id} || $txn;
+
+ if ( $wanted{deadlock_transactions} ) {
+ my $hash = extract_values($txn->{tx}, $txn->{tx}, $pre->{tx}, 'deadlock_transactions');
+ $hash->{cxn} = $cxn;
+ $hash->{dl_txn_num} = $txn_id;
+ $hash->{victim} = $txn_id == $victim ? 'Yes' : 'No';
+ $hash->{timestring} = $innodb_status->{IB_dl_timestring};
+ $hash->{truncates} = $innodb_status->{IB_dl_complete} ? 'No' : 'Yes';
+ push @deadlock_transactions, $hash;
+ }
+
+ if ( $wanted{deadlock_locks} ) {
+ foreach my $lock ( @{$txn->{locks}} ) {
+ my $hash = extract_values($lock, $lock, $lock, 'deadlock_locks');
+ $hash->{dl_txn_num} = $txn_id;
+ $hash->{cxn} = $cxn;
+ $hash->{mysql_thread_id} = $txn->{tx}->{mysql_thread_id};
+ push @deadlock_locks, $hash;
+ }
+ }
+
+ }
+ }
+ }
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ draw_screen(\@display_lines);
+}
+
+# display_F {{{3
+sub display_F {
+ my @display_lines;
+ my ( $cxn ) = get_connections();
+ get_status_info($cxn);
+ get_innodb_status([$cxn]);
+ my $innodb_status = $vars{$cxn}->{$clock};
+
+ if ( $innodb_status->{IB_fk_timestring} ) {
+
+ push @display_lines, 'Reason: ' . ($innodb_status->{IB_fk_reason} || 'unknown');
+
+ # Display FK errors caused by invalid DML.
+ if ( $innodb_status->{IB_fk_txn} ) {
+ my $txn = $innodb_status->{IB_fk_txn};
+ push @display_lines,
+ '',
+ "User $txn->{user} from $txn->{hostname}, thread $txn->{mysql_thread_id} was executing:",
+ '', no_ctrl_char($txn->{query_text});
+ }
+
+ my @fk_table = create_table2(
+ $tbl_meta{fk_error}->{visible},
+ meta_to_hdr('fk_error'),
+ extract_values($innodb_status, $innodb_status, $innodb_status, 'fk_error'),
+ { just => '-', sep => ' '});
+ push @display_lines, '', @fk_table;
+
+ }
+ else {
+ push @display_lines, '', 'No foreign key error data.';
+ }
+ draw_screen(\@display_lines, { raw => 1 } );
+}
+
+# display_I {{{3
+sub display_I {
+ my @display_lines;
+ my @cxns = get_connections();
+ get_status_info(@cxns);
+ get_innodb_status(\@cxns);
+
+ my @io_threads;
+ my @pending_io;
+ my @file_io_misc;
+ my @log_statistics;
+ my %rows_for = (
+ io_threads => \@io_threads,
+ pending_io => \@pending_io,
+ file_io_misc => \@file_io_misc,
+ log_statistics => \@log_statistics,
+ );
+
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ foreach my $cxn ( @cxns ) {
+ my $set = $vars{$cxn}->{$clock};
+ my $pre = $vars{$cxn}->{$clock-1} || $set;
+
+ if ( $set->{IB_io_complete} ) {
+ if ( $wanted{io_threads} ) {
+ my $cur_threads = $set->{IB_io_threads};
+ my $pre_threads = $pre->{IB_io_threads} || $cur_threads;
+ foreach my $key ( sort keys %$cur_threads ) {
+ my $cur_thd = $cur_threads->{$key};
+ my $pre_thd = $pre_threads->{$key} || $cur_thd;
+ my $hash = extract_values($cur_thd, $cur_thd, $pre_thd, 'io_threads');
+ $hash->{cxn} = $cxn;
+ push @io_threads, $hash;
+ }
+ }
+ if ( $wanted{pending_io} ) {
+ push @pending_io, extract_values($set, $set, $pre, 'pending_io');
+ }
+ if ( $wanted{file_io_misc} ) {
+ push @file_io_misc, extract_values(
+ $config{status_inc}->{val} ? inc(0, $cxn) : $set,
+ $set, $pre, 'file_io_misc');
+ }
+ }
+ if ( $set->{IB_lg_complete} && $wanted{log_statistics} ) {
+ push @log_statistics, extract_values($set, $set, $pre, 'log_statistics');
+ }
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ draw_screen(\@display_lines);
+}
+
+# display_K {{{3
+sub display_K {
+ my @display_lines;
+ my @cxns = get_connections();
+
+ my %rows_for = (
+ innodb_blocked_blocker => [],
+ );
+
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ # Get info on locks
+ if ( $wanted{innodb_blocked_blocker} ) {
+ my @rows = get_innodb_blocked_blocker(@cxns);
+ push @{$rows_for{innodb_blocked_blocker}}, map { extract_values($_, $_, $_, 'innodb_blocked_blocker') } @rows;
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ # Save queries in global variable for analysis. The rows in %rows_for have been
+ # filtered, etc as a side effect of set_to_tbl(), so they are the same as the rows
+ # that get pushed to the screen.
+ @current_queries = map {
+ my %hash;
+ @hash{ qw(cxn id user host db query time) }
+ = @{$_}{ qw(cxn blocking_thread blocking_user blocking_host blocking_db blocking_query blocking_age) };
+ # time is in fuzzy-time format; convert into something ascii-sortable.
+ $hash{time} = sprintf('%012s', fuzzy_to_secs($hash{time}));
+ $hash{host} =~ s/:.*$// if $hash{host};
+ \%hash;
+ } @{$rows_for{innodb_blocked_blocker}};
+
+ draw_screen(\@display_lines);
+}
+
+# display_L {{{3
+sub display_L {
+ my @display_lines;
+ my @cxns = get_connections();
+ get_status_info(@cxns);
+ get_innodb_status(\@cxns);
+
+ my @innodb_locks;
+ my %rows_for = (
+ innodb_locks => \@innodb_locks,
+ );
+
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ # Get info on locks
+ foreach my $cxn ( @cxns ) {
+ my $set = $vars{$cxn}->{$clock} or next;
+ my $pre = $vars{$cxn}->{$clock-1} || $set;
+
+ if ( $wanted{innodb_locks} && defined $set->{IB_tx_transactions} && @{$set->{IB_tx_transactions}} ) {
+
+ my $cur_txns = $set->{IB_tx_transactions};
+ my $pre_txns = $pre->{IB_tx_transactions} || $cur_txns;
+ my %cur_txns = map { $_->{mysql_thread_id} => $_ } grep { defined $_->{mysql_thread_id} } @$cur_txns;
+ my %pre_txns = map { $_->{mysql_thread_id} => $_ } grep { defined $_->{mysql_thread_id} } @$pre_txns;
+ foreach my $txn ( @$cur_txns ) {
+ foreach my $lock ( @{$txn->{locks}} ) {
+ my %hash = map { $_ => $txn->{$_} } qw(txn_id mysql_thread_id lock_wait_time active_secs);
+ map { $hash{$_} = $lock->{$_} } qw(lock_type space_id page_no n_bits index db table txn_id lock_mode special insert_intention waiting);
+ $hash{cxn} = $cxn;
+ push @innodb_locks, extract_values(\%hash, \%hash, \%hash, 'innodb_locks');
+ }
+ }
+ }
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ draw_screen(\@display_lines);
+}
+
+# display_M {{{3
+sub display_M {
+ my @display_lines;
+ my @cxns = get_connections();
+ get_master_slave_status(@cxns);
+ get_status_info(@cxns);
+
+ my @slave_sql_status;
+ my @slave_io_status;
+ my @master_status;
+ my %rows_for = (
+ slave_sql_status => \@slave_sql_status,
+ slave_io_status => \@slave_io_status,
+ master_status => \@master_status,
+ );
+
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ foreach my $cxn ( @cxns ) {
+ my $linecount=0;
+ my $sth = do_stmt($cxn, 'GET_CHANNELS');
+ my ( $channel );
+ $sth->execute();
+ $sth->bind_columns( \$channel );
+ while ( $sth->fetch() ) {
+ $linecount=$linecount+1;
+ if ( length $channel < 1 ) {
+ $channel = 'no_channels';
+ }
+ my $chcxn = $channel . '=' . $cxn;
+ get_slave_status($cxn,$channel);
+ my $set = $config{status_inc}->{val} ? inc(0, $chcxn) : $vars{$chcxn}->{$clock};
+ my $pre = $vars{$chcxn}->{$clock - 1} || $set;
+ if ( $wanted{slave_sql_status} ) {
+ push @slave_sql_status, extract_values($set, $set, $pre, 'slave_sql_status');
+ }
+ if ( $wanted{slave_io_status} ) {
+ push @slave_io_status, extract_values($set, $set, $pre, 'slave_io_status');
+ }
+ }
+ if ( $linecount < 1 ) {
+ $channel = 'no_channels';
+ my $chcxn = $channel . '=' . $cxn;
+ get_slave_status($cxn,$channel);
+ my $set = $config{status_inc}->{val} ? inc(0, $chcxn) : $vars{$chcxn}->{$clock};
+ my $pre = $vars{$chcxn}->{$clock - 1} || $set;
+ if ( $wanted{slave_sql_status} ) {
+ push @slave_sql_status, extract_values($set, $set, $pre, 'slave_sql_status');
+ }
+ if ( $wanted{slave_io_status} ) {
+ push @slave_io_status, extract_values($set, $set, $pre, 'slave_io_status');
+ }
+ }
+ my $set = $config{status_inc}->{val} ? inc(0, $cxn) : $vars{$cxn}->{$clock};
+ my $pre = $vars{$cxn}->{$clock - 1} || $set;
+ if ( $wanted{master_status} ) {
+ push @master_status, extract_values($set, $set, $pre, 'master_status');
+ }
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ draw_screen(\@display_lines);
+}
+
+# display_O {{{3
+sub display_O {
+ my @display_lines = ('');
+ my @cxns = get_connections();
+ my @open_tables = get_open_tables(@cxns);
+ my @tables = map { extract_values($_, $_, $_, 'open_tables') } @open_tables;
+ push @display_lines, set_to_tbl(\@tables, 'open_tables'), get_cxn_errors(@cxns);
+ draw_screen(\@display_lines);
+}
+
+# display_P {{{3
+sub display_P {
+ my @display_lines;
+
+ my @table_statistics;
+ my @index_statistics;
+ my @index_table_statistics;
+ my %rows_for = (
+ table_statistics => \@table_statistics,
+ index_statistics => \@index_statistics,
+ index_table_statistics => \@index_table_statistics,
+ );
+
+ my @visible = $opts{n} ? 'index_table_statistics' : get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ # Get the data
+ my @cxns = get_connections();
+
+ if ( $wanted{table_statistics} ) {
+ my @rows = get_table_statistics(@cxns);
+ push @table_statistics, map { extract_values($_, $_, $_, 'table_statistics') } @rows;
+ }
+ elsif ( $wanted{index_statistics} ) {
+ my @rows = get_index_statistics(@cxns);
+ push @index_statistics, map { extract_values($_, $_, $_, 'index_statistics') } @rows;
+ }
+ elsif ( $wanted{index_table_statistics} ) {
+ my @rows = get_index_table_statistics(@cxns);
+ push @index_table_statistics, map { extract_values($_, $_, $_, 'index_table_statistics') } @rows;
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ next unless $wanted{$tbl};
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ draw_screen(\@display_lines);
+}
+
+# display_Q {{{3
+sub display_Q {
+ my @display_lines;
+
+ my @q_header;
+ my @processlist;
+ my %rows_for = (
+ q_header => \@q_header,
+ processlist => \@processlist,
+ );
+
+ my @visible = $opts{n} ? 'processlist' : get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ # Get the data
+ my @cxns = get_connections();
+ my @full_processlist = get_full_processlist(@cxns);
+
+ # Create header
+ if ( $wanted{q_header} ) {
+ get_status_info(@cxns);
+ foreach my $cxn ( @cxns ) {
+ my $set = $vars{$cxn}->{$clock};
+ my $pre = $vars{$cxn}->{$clock-1} || $set;
+ my $hash = extract_values($set, $set, $pre, 'q_header');
+ $hash->{cxn} = $cxn;
+ $hash->{when} = 'Total';
+ push @q_header, $hash;
+
+ if ( exists $vars{$cxn}->{$clock - 1} ) {
+ my $inc = inc(0, $cxn);
+ my $hash = extract_values($inc, $set, $pre, 'q_header');
+ $hash->{cxn} = $cxn;
+ $hash->{when} = 'Now';
+ push @q_header, $hash;
+ }
+ }
+ }
+
+ if ( $wanted{processlist} ) {
+ # TODO: save prev values
+ push @processlist, map { extract_values($_, $_, $_, 'processlist') } @full_processlist;
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ next unless $wanted{$tbl};
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ # Save queries in global variable for analysis. The rows in %rows_for have been
+ # filtered, etc as a side effect of set_to_tbl(), so they are the same as the rows
+ # that get pushed to the screen.
+ @current_queries = map {
+ my %hash;
+ @hash{ qw(cxn id db query time user host) }
+ = @{$_}{ qw(cxn mysql_thread_id db info time user hostname) };
+ # time is in seconds-to-time format; convert into something
+ # ascii-sortable.
+ $hash{time} = sprintf('%012s', $hash{time} =~ m/^([^.]*)/);
+ \%hash;
+ } @{$rows_for{processlist}};
+
+ draw_screen(\@display_lines);
+}
+
+# display_R {{{3
+sub display_R {
+ my @display_lines;
+ my @cxns = get_connections();
+ get_status_info(@cxns);
+ get_innodb_status(\@cxns);
+
+ my @row_operations;
+ my @row_operation_misc;
+ my @semaphores;
+ my @wait_array;
+ my %rows_for = (
+ row_operations => \@row_operations,
+ row_operation_misc => \@row_operation_misc,
+ semaphores => \@semaphores,
+ wait_array => \@wait_array,
+ );
+
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+ my $incvar = $config{status_inc}->{val};
+
+ foreach my $cxn ( @cxns ) {
+ my $set = $vars{$cxn}->{$clock};
+ my $pre = $vars{$cxn}->{$clock-1} || $set;
+ my $inc; # Only assigned to if wanted
+
+ if ( $set->{IB_ro_complete} ) {
+ if ( $wanted{row_operations} ) {
+ $inc ||= $incvar ? inc(0, $cxn) : $set;
+ push @row_operations, extract_values($inc, $set, $pre, 'row_operations');
+ }
+ if ( $wanted{row_operation_misc} ) {
+ push @row_operation_misc, extract_values($set, $set, $pre, 'row_operation_misc'),
+ }
+ }
+
+ if ( $set->{IB_sm_complete} && $wanted{semaphores} ) {
+ $inc ||= $incvar ? inc(0, $cxn) : $set;
+ push @semaphores, extract_values($inc, $set, $pre, 'semaphores');
+ }
+
+ if ( $set->{IB_sm_wait_array_size} && $wanted{wait_array} ) {
+ foreach my $wait ( @{$set->{IB_sm_waits}} ) {
+ my $hash = extract_values($wait, $wait, $wait, 'wait_array');
+ $hash->{cxn} = $cxn;
+ push @wait_array, $hash;
+ }
+ }
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ draw_screen(\@display_lines);
+}
+
+# display_T {{{3
+sub display_T {
+ my @display_lines;
+
+ my @t_header;
+ my @innodb_transactions;
+ my %rows_for = (
+ t_header => \@t_header,
+ innodb_transactions => \@innodb_transactions,
+ );
+
+ my @visible = $opts{n} ? 'innodb_transactions' : get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+
+ my @cxns = get_connections();
+
+ get_status_info(@cxns);
+
+ # If the header is to be shown, buffer pool data is required.
+ get_innodb_status( \@cxns, [ $wanted{t_header} ? qw(bp) : () ] );
+
+ foreach my $cxn ( get_connections() ) {
+ my $set = $vars{$cxn}->{$clock};
+ my $pre = $vars{$cxn}->{$clock-1} || $set;
+
+ next unless $set->{IB_tx_transactions};
+
+ if ( $wanted{t_header} ) {
+ my $hash = extract_values($set, $set, $pre, 't_header');
+ push @t_header, $hash;
+ }
+
+ if ( $wanted{innodb_transactions} ) {
+ my $cur_txns = $set->{IB_tx_transactions};
+ my $pre_txns = $pre->{IB_tx_transactions} || $cur_txns;
+ my %cur_txns = map { $_->{mysql_thread_id} => $_ } grep { defined $_->{mysql_thread_id} } @$cur_txns;
+ my %pre_txns = map { $_->{mysql_thread_id} => $_ } grep { defined $_->{mysql_thread_id} } @$pre_txns;
+ foreach my $thd_id ( sort keys %cur_txns ) {
+ my $cur_txn = $cur_txns{$thd_id};
+ my $pre_txn = $pre_txns{$thd_id} || $cur_txn;
+ my $hash = extract_values($cur_txn, $cur_txn, $pre_txn, 'innodb_transactions');
+ $hash->{cxn} = $cxn;
+ push @innodb_transactions, $hash;
+ }
+ }
+
+ }
+
+ my $first_table = 0;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+
+ # Save queries in global variable for analysis. The rows in %rows_for have been
+ # filtered, etc as a side effect of set_to_tbl(), so they are the same as the rows
+ # that get pushed to the screen.
+ @current_queries = map {
+ my %hash;
+ @hash{ qw(cxn id db query time user host) }
+ = @{$_}{ qw(cxn mysql_thread_id db query_text active_secs user hostname) };
+ \%hash;
+ } @{$rows_for{innodb_transactions}};
+
+ draw_screen(\@display_lines);
+}
+
+# display_S {{{3
+sub display_S {
+ my $fmt = get_var_set('S_set');
+ my $func = $config{S_func}->{val};
+ my $inc = $func eq 'g' || $config{status_inc}->{val};
+
+ # The table's meta-data is generated from the compiled var_set.
+ my ( $cols, $visible );
+ if ( $tbl_meta{var_status}->{fmt} && $fmt eq $tbl_meta{var_status}->{fmt} ) {
+ ( $cols, $visible ) = @{$tbl_meta{var_status}}{qw(cols visible)};
+ }
+ else {
+ ( $cols, $visible ) = compile_select_stmt($fmt);
+
+ # Apply missing values to columns. Always apply averages across all connections.
+ map {
+ $_->{agg} = 'avg';
+ $_->{label} = $_->{hdr};
+ } values %$cols;
+
+ $tbl_meta{var_status}->{cols} = $cols;
+ $tbl_meta{var_status}->{visible} = $visible;
+ $tbl_meta{var_status}->{fmt} = $fmt;
+ map { $tbl_meta{var_status}->{cols}->{$_}->{just} = ''} @$visible;
+ }
+
+ my @var_status;
+ my %rows_for = (
+ var_status => \@var_status,
+ );
+
+ my @visible = get_visible_tables();
+ my %wanted = map { $_ => 1 } @visible;
+ my @cxns = get_connections();
+
+ get_status_info(@cxns);
+ get_innodb_status(\@cxns);
+
+ # Set up whether to pivot and how many sets to extract.
+ $tbl_meta{var_status}->{pivot} = $func eq 'v';
+
+ my $num_sets
+ = $func eq 'v'
+ ? $config{num_status_sets}->{val}
+ : 0;
+ foreach my $set ( 0 .. $num_sets ) {
+ my @rows;
+ foreach my $cxn ( @cxns ) {
+ my $vars = $inc ? inc($set, $cxn) : $vars{$cxn}->{$clock - $set};
+ my $cur = $vars{$cxn}->{$clock-$set};
+ my $pre = $vars{$cxn}->{$clock-$set-1} || $cur;
+ next unless $vars && %$vars;
+ my $hash = extract_values($vars, $cur, $pre, 'var_status');
+ push @rows, $hash;
+ }
+ @rows = apply_group_by('var_status', [], @rows);
+ push @var_status, @rows;
+ }
+
+ # Recompile the sort func. TODO: avoid recompiling at every refresh.
+ # Figure out whether the data is all numeric and decide on a sort type.
+ # my $cmp
+ # = scalar(
+ # grep { !defined $_ || $_ !~ m/^\d+$/ }
+ # map { my $col = $_; map { $_->{$col} } @var_status }
+ # $tbl_meta{var_status}->{sort_cols} =~ m/(\w+)/g)
+ # ? 'cmp'
+ # : '<=>';
+ $tbl_meta{var_status}->{sort_func} = make_sort_func($tbl_meta{var_status});
+
+ # ################################################################
+ # Now there is specific display code based on $config{S_func}
+ # ################################################################
+ if ( $func =~ m/s|g/ ) {
+ my $min_width = 4;
+
+ # Clear the screen if the display width changed.
+ if ( @last_term_size && $this_term_size[0] != $last_term_size[0] ) {
+ $lines_printed = 0;
+ $clear_screen_sub->();
+ }
+
+ if ( $func eq 's' ) {
+ # Decide how wide columns should be.
+ my $num_cols = scalar(@$visible);
+ my $width = $opts{n} ? 0 : max($min_width, int(($this_term_size[0] - $num_cols + 1) / $num_cols));
+ my $g_format = $opts{n} ? ( "%s\t" x $num_cols ) : ( "%-${width}s " x $num_cols );
+
+ # Print headers every now and then. Headers can get really long, so compact them.
+ my @hdr = @$visible;
+ if ( $opts{n} ) {
+ if ( $lines_printed == 0 ) {
+ print join("\t", @hdr), "\n";
+ $lines_printed++;
+ }
+ }
+ elsif ( $lines_printed == 0 || $lines_printed > $this_term_size[1] - 2 ) {
+ @hdr = map { donut(crunch($_, $width), $width) } @hdr;
+ print join(' ', map { sprintf( "%${width}s", donut($_, $width)) } @hdr) . "\n";
+ $lines_printed = 1;
+ }
+
+ # Design a column format for the values.
+ my $format
+ = $opts{n}
+ ? join("\t", map { '%s' } @$visible) . "\n"
+ : join(' ', map { "%${width}s" } @hdr) . "\n";
+
+ foreach my $row ( @var_status ) {
+ printf($format, map { defined $_ ? $_ : '' } @{$row}{ @$visible });
+ $lines_printed++;
+ }
+ }
+ else { # 'g' mode
+ # Design a column format for the values.
+ my $num_cols = scalar(@$visible);
+ my $width = $opts{n} ? 0 : int(($this_term_size[0] - $num_cols + 1) / $num_cols);
+ my $format = $opts{n} ? ( "%s\t" x $num_cols ) : ( "%-${width}s " x $num_cols );
+ $format =~ s/\s$/\n/;
+
+ # Print headers every now and then.
+ if ( $opts{n} ) {
+ if ( $lines_printed == 0 ) {
+ print join("\t", @$visible), "\n";
+ print join("\t", map { shorten($mvs{$_}) } @$visible), "\n";
+ }
+ }
+ elsif ( $lines_printed == 0 || $lines_printed > $this_term_size[1] - 2 ) {
+ printf($format, map { donut(crunch($_, $width), $width) } @$visible);
+ printf($format, map { shorten($mvs{$_} || 0) } @$visible);
+ $lines_printed = 2;
+ }
+
+ # Update the max ever seen, and scale by the max ever seen.
+ my $set = $var_status[0];
+ foreach my $col ( @$visible ) {
+ $set->{$col} = 1 unless defined $set->{$col} && $set->{$col} =~ m/$num_regex/;
+ $set->{$col} = ($set->{$col} || 1) / ($set->{Uptime_hires} || 1);
+ $mvs{$col} = max($mvs{$col} || 1, $set->{$col});
+ $set->{$col} /= $mvs{$col};
+ }
+ printf($format, map { ( $config{graph_char}->{val} x int( $width * $set->{$_} )) || '.' } @$visible );
+ $lines_printed++;
+
+ }
+ }
+ else { # 'v'
+ my $first_table = 0;
+ my @display_lines;
+ foreach my $tbl ( @visible ) {
+ push @display_lines, '', set_to_tbl($rows_for{$tbl}, $tbl);
+ push @display_lines, get_cxn_errors(@cxns)
+ if ( $config{debug}->{val} || !$first_table++ );
+ }
+ $clear_screen_sub->();
+ draw_screen( \@display_lines );
+ }
+}
+
+# display_explain {{{3
+sub display_explain {
+ my $info = shift;
+ my $cxn = $info->{cxn};
+ my $db = $info->{db};
+
+ my ( $mods, $query ) = rewrite_for_explain($info->{query});
+
+ my @display_lines;
+
+ if ( $query ) {
+
+ my $part = version_ge($dbhs{$cxn}->{dbh}, '5.1.5') ? 'PARTITIONS' : '';
+ $query = "EXPLAIN $part\n" . $query;
+
+ eval {
+ if ( $db ) {
+ do_query($cxn, "use $db");
+ }
+ my $sth = do_query($cxn, $query);
+
+ my $res;
+ while ( $res = $sth->fetchrow_hashref() ) {
+ map { $res->{$_} ||= '' } ( 'partitions', keys %$res);
+ my @this_table = create_caption("Sub-Part $res->{id}",
+ create_table2(
+ $tbl_meta{explain}->{visible},
+ meta_to_hdr('explain'),
+ extract_values($res, $res, $res, 'explain')));
+ @display_lines = stack_next(\@display_lines, \@this_table, { pad => ' ', vsep => 2 });
+ }
+ };
+
+ if ( $EVAL_ERROR ) {
+ push @display_lines,
+ '',
+ "The query could not be explained. Only SELECT queries can be "
+ . "explained; innotop tries to rewrite certain REPLACE and INSERT queries "
+ . "into SELECT, but this doesn't always succeed.";
+ }
+
+ }
+ else {
+ push @display_lines, '', 'The query could not be explained.';
+ }
+
+ if ( $mods ) {
+ push @display_lines, '', '[This query has been re-written to be explainable]';
+ }
+
+ unshift @display_lines, no_ctrl_char($query);
+ draw_screen(\@display_lines, { raw => 1 } );
+}
+
+# rewrite_for_explain {{{3
+sub rewrite_for_explain {
+ my $query = shift;
+
+ my $mods = 0;
+ my $orig = $query;
+ $mods += $query =~ s/^\s*(?:replace|insert).*?select/select/is;
+ $mods += $query =~ s/^
+ \s*create\s+(?:temporary\s+)?table
+ \s+(?:\S+\s+)as\s+select/select/xis;
+ $mods += $query =~ s/\s+on\s+duplicate\s+key\s+update.*$//is;
+ return ( $mods, $query );
+}
+
+# show_optimized_query {{{3
+sub show_optimized_query {
+ my $info = shift;
+ my $cxn = $info->{cxn};
+ my $db = $info->{db};
+ my $meta = $dbhs{$cxn};
+
+ my @display_lines;
+
+ my ( $mods, $query ) = rewrite_for_explain($info->{query});
+
+ if ( $mods ) {
+ push @display_lines, '[This query has been re-written to be explainable]';
+ }
+
+ if ( $query ) {
+ push @display_lines, no_ctrl_char($info->{query});
+
+ eval {
+ if ( $db ) {
+ do_query($cxn, "use $db");
+ }
+ do_query( $cxn, 'EXPLAIN EXTENDED ' . $query ) or die "Can't explain query";
+ my $sth = do_query($cxn, 'SHOW WARNINGS');
+ my $res = $sth->fetchall_arrayref({});
+
+ if ( $res ) {
+ foreach my $result ( @$res ) {
+ push @display_lines, 'Note:', no_ctrl_char($result->{message});
+ }
+ }
+ else {
+ push @display_lines, '', 'The query optimization could not be generated.';
+ }
+ };
+
+ if ( $EVAL_ERROR ) {
+ push @display_lines, '', "The optimization could not be generated: $EVAL_ERROR";
+ }
+
+ }
+ else {
+ push @display_lines, '', 'The query optimization could not be generated.';
+ }
+
+ draw_screen(\@display_lines, { raw => 1 } );
+}
+
+# display_help {{{3
+sub display_help {
+ my $mode = $config{mode}->{val};
+
+ # Get globally mapped keys, then overwrite them with mode-specific ones.
+ my %keys = map {
+ $_ => $action_for{$_}->{label}
+ } keys %action_for;
+ foreach my $key ( keys %{$modes{$mode}->{action_for}} ) {
+ $keys{$key} = $modes{$mode}->{action_for}->{$key}->{label};
+ }
+ delete $keys{'?'};
+
+ # Split them into three kinds of keys: MODE keys, action keys, and
+ # magic (special character) keys.
+ my @modes = sort grep { m/[A-Z]/ } keys %keys;
+ my @actions = sort grep { m/[a-z]/ } keys %keys;
+ my @magic = sort grep { m/[^A-Z]/i } keys %keys;
+
+ my @display_lines = ( '', 'Switch to a different mode:' );
+
+ # Mode keys
+ my @all_modes = map { "$_ $modes{$_}->{hdr}" } @modes;
+ my @col1 = splice(@all_modes, 0, ceil(@all_modes/3));
+ my @col2 = splice(@all_modes, 0, ceil(@all_modes/2));
+ my $max1 = max(map {length($_)} @col1);
+ my $max2 = max(map {length($_)} @col2);
+ while ( @col1 ) {
+ push @display_lines, sprintf(" %-${max1}s %-${max2}s %s",
+ (shift @col1 || ''),
+ (shift @col2 || ''),
+ (shift @all_modes || ''));
+ }
+
+ # Action keys
+ my @all_actions = map { "$_ $keys{$_}" } @actions;
+ @col1 = splice(@all_actions, 0, ceil(@all_actions/2));
+ $max1 = max(map {length($_)} @col1);
+ push @display_lines, '', 'Actions:';
+ while ( @col1 ) {
+ push @display_lines, sprintf(" %-${max1}s %s",
+ (shift @col1 || ''),
+ (shift @all_actions || ''));
+ }
+
+ # Magic keys
+ my @all_magic = map {
+ my $k = $action_for{$_} ? ($action_for{$_}->{key} || $_) : $_;
+ sprintf('%4s %s', $k, $keys{$_});
+ } @magic;
+ @col1 = splice(@all_magic, 0, ceil(@all_magic/2));
+ $max1 = max(map {length($_)} @col1);
+ push @display_lines, '', 'Other:';
+ while ( @col1 ) {
+ push @display_lines, sprintf("%-${max1}s%s",
+ (shift @col1 || ''),
+ (shift @all_magic || ''));
+ }
+
+ $clear_screen_sub->();
+ draw_screen(\@display_lines, { show_all => 1 } );
+ pause();
+ $clear_screen_sub->();
+}
+
+# show_full_query {{{3
+sub show_full_query {
+ my $info = shift;
+ my @display_lines = no_ctrl_char($info->{query});
+ draw_screen(\@display_lines, { raw => 1 });
+}
+
+# Formatting functions {{{2
+
+# create_table2 {{{3
+# Makes a two-column table, labels on left, data on right.
+# Takes refs of @cols, %labels and %data, %user_prefs
+sub create_table2 {
+ my ( $cols, $labels, $data, $user_prefs ) = @_;
+ my @rows;
+
+ if ( @$cols && %$data ) {
+
+ # Override defaults
+ my $p = {
+ just => '',
+ sep => ':',
+ just1 => '-',
+ };
+ if ( $user_prefs ) {
+ map { $p->{$_} = $user_prefs->{$_} } keys %$user_prefs;
+ }
+
+ # Fix undef values
+ map { $data->{$_} = '' unless defined $data->{$_} } @$cols;
+
+ # Format the table
+ my $max_l = max(map{ length($labels->{$_}) } @$cols);
+ my $max_v = max(map{ length($data->{$_}) } @$cols);
+ my $format = "%$p->{just}${max_l}s$p->{sep} %$p->{just1}${max_v}s";
+ foreach my $col ( @$cols ) {
+ push @rows, sprintf($format, $labels->{$col}, $data->{$col});
+ }
+ }
+ return @rows;
+}
+
+# stack_next {{{3
+# Stacks one display section next to the other. Accepts left-hand arrayref,
+# right-hand arrayref, and options hashref. Tries to stack as high as
+# possible, so
+# aaaaaa
+# bbb
+# can stack ccc next to the bbb.
+# NOTE: this DOES modify its arguments, even though it returns a new array.
+sub stack_next {
+ my ( $left, $right, $user_prefs ) = @_;
+ my @result;
+
+ my $p = {
+ pad => ' ',
+ vsep => 0,
+ };
+ if ( $user_prefs ) {
+ map { $p->{$_} = $user_prefs->{$_} } keys %$user_prefs;
+ }
+
+ # Find out how wide the LHS can be and still let the RHS fit next to it.
+ my $pad = $p->{pad};
+ my $max_r = max( map { length($_) } @$right) || 0;
+ my $max_l = $this_term_size[0] - $max_r - length($pad);
+
+ # Find the minimum row on the LHS that the RHS will fit next to.
+ my $i = scalar(@$left) - 1;
+ while ( $i >= 0 && length($left->[$i]) <= $max_l ) {
+ $i--;
+ }
+ $i++;
+ my $offset = $i;
+
+ if ( $i < scalar(@$left) ) {
+ # Find the max width of the section of the LHS against which the RHS
+ # will sit.
+ my $max_i_in_common = min($i + scalar(@$right) - 1, scalar(@$left) - 1);
+ my $max_width = max( map { length($_) } @{$left}[$i..$max_i_in_common]);
+
+ # Append the RHS onto the LHS until one runs out.
+ while ( $i < @$left && $i - $offset < @$right ) {
+ my $format = "%-${max_width}s$pad%${max_r}s";
+ $left->[$i] = sprintf($format, $left->[$i], $right->[$i - $offset]);
+ $i++;
+ }
+ while ( $i - $offset < @$right ) {
+ # There is more RHS to push on the end of the array
+ push @$left,
+ sprintf("%${max_width}s$pad%${max_r}s", ' ', $right->[$i - $offset]);
+ $i++;
+ }
+ push @result, @$left;
+ }
+ else {
+ # There is no room to put them side by side. Add them below, with
+ # a blank line above them if specified.
+ push @result, @$left;
+ push @result, (' ' x $this_term_size[0]) if $p->{vsep} && @$left;
+ push @result, @$right;
+ }
+ return @result;
+}
+
+# create_caption {{{3
+sub create_caption {
+ my ( $caption, @rows ) = @_;
+ if ( @rows ) {
+
+ # Calculate the width of what will be displayed, so it can be centered
+ # in that space. When the thing is wider than the display, center the
+ # caption in the display.
+ my $width = min($this_term_size[0], max(map { length(ref($_) ? $_->[0] : $_) } @rows));
+
+ my $cap_len = length($caption);
+
+ # It may be narrow enough to pad the sides with underscores and save a
+ # line on the screen.
+ if ( $cap_len <= $width - 6 ) {
+ my $left = int(($width - 2 - $cap_len) / 2);
+ unshift @rows,
+ ("_" x $left) . " $caption " . ("_" x ($width - $left - $cap_len - 2));
+ }
+
+ # The caption is too wide to add underscores on each side.
+ else {
+
+ # Color is supported, so we can use terminal underlining.
+ if ( $config{color}->{val} ) {
+ my $left = int(($width - $cap_len) / 2);
+ unshift @rows, [
+ (" " x $left) . $caption . (" " x ($width - $left - $cap_len)),
+ 'underline',
+ ];
+ }
+
+ # Color is not supported, so we have to add a line underneath to separate the
+ # caption from whatever it's captioning.
+ else {
+ my $left = int(($width - $cap_len) / 2);
+ unshift @rows, ('-' x $width);
+ unshift @rows, (" " x $left) . $caption . (" " x ($width - $left - $cap_len));
+ }
+
+ # The caption is wider than the thing it labels, so we have to pad the
+ # thing it labels to a consistent width.
+ if ( $cap_len > $width ) {
+ @rows = map {
+ ref($_)
+ ? [ sprintf('%-' . $cap_len . 's', $_->[0]), $_->[1] ]
+ : sprintf('%-' . $cap_len . 's', $_);
+ } @rows;
+ }
+
+ }
+ }
+ return @rows;
+}
+
+# create_table {{{3
+# Input: an arrayref of columns, hashref of col info, and an arrayref of hashes
+# Example: [ 'a', 'b' ]
+# { a => spec, b => spec }
+# [ { a => 1, b => 2}, { a => 3, b => 4 } ]
+# The 'spec' is a hashref of hdr => label, just => ('-' or ''). It also supports min and max-widths
+# vi the minw and maxw params.
+# Output: an array of strings, one per row.
+# Example:
+# Column One Column Two
+# ---------- ----------
+# 1 2
+# 3 4
+sub create_table {
+ my ( $cols, $info, $data, $prefs ) = @_;
+ $prefs ||= {};
+ $prefs->{no_hdr} ||= ($opts{n} && $clock != 1);
+
+ # Truncate rows that will surely be off screen even if this is the only table.
+ if ( !$opts{n} && !$prefs->{raw} && !$prefs->{show_all} && $this_term_size[1] < @$data-1 ) {
+ $data = [ @$data[0..$this_term_size[1] - 1] ];
+ }
+
+ my @rows = ();
+
+ if ( @$cols && %$info ) {
+
+ # Fix undef values, collapse whitespace.
+ foreach my $row ( @$data ) {
+ map { $row->{$_} = collapse_ws($row->{$_}) } @$cols;
+ }
+
+ my $col_sep = $opts{n} ? "\t" : ' ';
+
+ # Find each column's max width.
+ my %width_for;
+ if ( !$opts{n} ) {
+ %width_for = map {
+ my $col_name = $_;
+ if ( $info->{$_}->{dec} ) {
+ # Align along the decimal point
+ my $max_rodp = max(0, map { $_->{$col_name} =~ m/([^\s\d-].*)$/ ? length($1) : 0 } @$data);
+ foreach my $row ( @$data ) {
+ my $col = $row->{$col_name};
+ my ( $l, $r ) = $col =~ m/^([\s\d]*)(.*)$/;
+ $row->{$col_name} = sprintf("%s%-${max_rodp}s", $l, $r);
+ }
+ }
+ my $max_width = max( length($info->{$_}->{hdr}), map { length($_->{$col_name}) } @$data);
+ if ( $info->{$col_name}->{maxw} ) {
+ $max_width = min( $max_width, $info->{$col_name}->{maxw} );
+ }
+ if ( $info->{$col_name}->{minw} ) {
+ $max_width = max( $max_width, $info->{$col_name}->{minw} );
+ }
+ $col_name => $max_width;
+ } @$cols;
+ }
+
+ # The table header.
+ if ( !$config{hide_hdr}->{val} && !$prefs->{no_hdr} ) {
+ push @rows, $opts{n}
+ ? join( $col_sep, @$cols )
+ : join( $col_sep, map { sprintf( "%-$width_for{$_}s", trunc($info->{$_}->{hdr}, $width_for{$_}) ) } @$cols );
+ if ( $config{color}->{val} && $config{header_highlight}->{val} ) {
+ push @rows, [ pop @rows, $config{header_highlight}->{val} ];
+ }
+ elsif ( !$opts{n} ) {
+ push @rows, join( $col_sep, map { "-" x $width_for{$_} } @$cols );
+ }
+ }
+
+ # The table data.
+ if ( $opts{n} ) {
+ foreach my $item ( @$data ) {
+ push @rows, join($col_sep, map { $item->{$_} } @$cols );
+ }
+ }
+ else {
+ my $format = join( $col_sep,
+ map { "%$info->{$_}->{just}$width_for{$_}s" } @$cols );
+ foreach my $item ( @$data ) {
+ my $row = sprintf($format, map { trunc($item->{$_}, $width_for{$_}) } @$cols );
+ if ( $config{color}->{val} && $item->{_color} ) {
+ push @rows, [ $row, $item->{_color} ];
+ }
+ else {
+ push @rows, $row;
+ }
+ }
+ }
+ }
+
+ return @rows;
+}
+
+# Aggregates a table. If $group_by is an arrayref of columns, the grouping key
+# is the specified columns; otherwise it's just the empty string (e.g.
+# everything is grouped as one group).
+sub apply_group_by {
+ my ( $tbl, $group_by, @rows ) = @_;
+ my $meta = $tbl_meta{$tbl};
+ my %is_group = map { $_ => 1 } @$group_by;
+ my @non_grp = grep { !$is_group{$_} } keys %{$meta->{cols}};
+
+ my %temp_table;
+ foreach my $row ( @rows ) {
+ my $group_key
+ = @$group_by
+ ? '{' . join('}{', map { defined $_ ? $_ : '' } @{$row}{@$group_by}) . '}'
+ : '';
+ $temp_table{$group_key} ||= [];
+ push @{$temp_table{$group_key}}, $row;
+ }
+
+ # Crush the rows together...
+ my @new_rows;
+ foreach my $key ( sort keys %temp_table ) {
+ my $group = $temp_table{$key};
+ my %new_row;
+ @new_row{@$group_by} = @{$group->[0]}{@$group_by};
+ foreach my $col ( @non_grp ) {
+ my $agg = $meta->{cols}->{$col}->{agg} || 'first';
+ $new_row{$col} = $agg_funcs{$agg}->( map { $_->{$col} } @$group );
+ }
+ push @new_rows, \%new_row;
+ }
+ return @new_rows;
+}
+
+# set_to_tbl {{{3
+# Unifies all the work of filtering, sorting etc. Alters the input.
+# TODO: pull all the little pieces out into subroutines and stick events in each of them.
+sub set_to_tbl {
+ my ( $rows, $tbl ) = @_;
+ my $meta = $tbl_meta{$tbl} or die "No such table $tbl in tbl_meta";
+
+ # don't show / hide cxn if there's only one connection being displayed
+ my (@visible, @group_by);
+ my $num_cxn = scalar get_connections();
+ if ($num_cxn <= 1) {
+ map { push @visible, $_ if $_ !~ /^cxn$/ } @{$meta->{visible}};
+ $meta->{visible} = \@visible;
+ map { push @group_by, $_ if $_ !~ /^cxn$/ } @{$meta->{group_by}};
+ $meta->{group_by} = \@group_by;
+ }
+ # if cxn is not visible and there is now more than one connection,
+ # make cxn visible again. assume it's not in group_by if it's not
+ # visible
+ else {
+ my $has_cxn = 0;
+ foreach my $column (@{$meta->{visible}}) {
+ if ($column eq "cxn") {
+ $has_cxn = 1;
+ last;
+ }
+ }
+ if (not $has_cxn) {
+ map { push @visible, $_ if $_ !~ /^cxn$/ } @{$meta->{visible}};
+ $meta->{visible} = \@visible;
+ map { push @group_by, $_ if $_ !~ /^cxn$/ } @{$meta->{group_by}};
+ $meta->{group_by} = \@group_by;
+ }
+ }
+
+ if ( !$meta->{pivot} ) {
+
+ # Hook in event listeners
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_pre_filter}} ) {
+ $listener->set_to_tbl_pre_filter($rows, $tbl);
+ }
+
+ # Apply filters. Note that if the table is pivoted, filtering and sorting
+ # are applied later.
+ foreach my $filter ( @{$meta->{filters}} ) {
+ eval {
+ @$rows = grep { $filters{$filter}->{func}->($_) } @$rows;
+ };
+ if ( $EVAL_ERROR && $config{debug}->{val} ) {
+ die $EVAL_ERROR;
+ }
+ }
+
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_pre_sort}} ) {
+ $listener->set_to_tbl_pre_sort($rows, $tbl);
+ }
+
+ # Sort. Note that if the table is pivoted, sorting might have the wrong
+ # columns and it could crash. This will only be an issue if it's possible
+ # to toggle pivoting on and off, which it's not at the moment.
+ if ( @$rows && $meta->{sort_func} && !$meta->{aggregate} ) {
+ if ( $meta->{sort_dir} > 0 ) {
+ @$rows = $meta->{sort_func}->( @$rows );
+ }
+ else {
+ @$rows = reverse $meta->{sort_func}->( @$rows );
+ }
+ }
+
+ }
+
+ # Stop altering arguments now.
+ my @rows = @$rows;
+
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_pre_group}} ) {
+ $listener->set_to_tbl_pre_group(\@rows, $tbl);
+ }
+
+ # Apply group-by.
+ if ( $meta->{aggregate} ) {
+ @rows = apply_group_by($tbl, $meta->{group_by}, @rows);
+
+ # Sort. Note that if the table is pivoted, sorting might have the wrong
+ # columns and it could crash. This will only be an issue if it's possible
+ # to toggle pivoting on and off, which it's not at the moment.
+ if ( @rows && $meta->{sort_func} ) {
+ if ( $meta->{sort_dir} > 0 ) {
+ @rows = $meta->{sort_func}->( @rows );
+ }
+ else {
+ @rows = reverse $meta->{sort_func}->( @rows );
+ }
+ }
+
+ }
+
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_pre_colorize}} ) {
+ $listener->set_to_tbl_pre_colorize(\@rows, $tbl);
+ }
+
+ if ( !$meta->{pivot} ) {
+ # Colorize. Adds a _color column to rows.
+ if ( @rows && $meta->{color_func} ) {
+ eval {
+ foreach my $row ( @rows ) {
+ $row->{_color} = $meta->{color_func}->($row);
+ }
+ };
+ if ( $EVAL_ERROR ) {
+ pause($EVAL_ERROR);
+ }
+ }
+ }
+
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_pre_transform}} ) {
+ $listener->set_to_tbl_pre_transform(\@rows, $tbl);
+ }
+
+ # Apply_transformations.
+ if ( @rows ) {
+ my $cols = $meta->{cols};
+ foreach my $col ( keys %{$rows->[0]} ) {
+ # Don't auto-vivify $tbl_meta{tbl}-{cols}->{_color}->{trans}
+ next if $col eq '_color';
+ foreach my $trans ( @{$cols->{$col}->{trans}} ) {
+ map { $_->{$col} = $trans_funcs{$trans}->($_->{$col}) } @rows;
+ }
+ }
+ }
+
+ my ($fmt_cols, $fmt_meta);
+
+ # Pivot.
+ if ( $meta->{pivot} ) {
+
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_pre_pivot}} ) {
+ $listener->set_to_tbl_pre_pivot(\@rows, $tbl);
+ }
+
+ my @vars = @{$meta->{visible}};
+ my @tmp = map { { name => $_ } } @vars;
+ my @cols = 'name';
+ foreach my $i ( 0..@$rows-1 ) {
+ my $col = "set_$i";
+ push @cols, $col;
+ foreach my $j ( 0..@vars-1 ) {
+ $tmp[$j]->{$col} = $rows[$i]->{$vars[$j]};
+ }
+ }
+ $fmt_meta = { map { $_ => { hdr => $_, just => '-' } } @cols };
+ $fmt_cols = \@cols;
+ @rows = @tmp;
+
+ # Hook in event listeners
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_pre_filter}} ) {
+ $listener->set_to_tbl_pre_filter($rows, $tbl);
+ }
+
+ # Apply filters.
+ foreach my $filter ( @{$meta->{filters}} ) {
+ eval {
+ @rows = grep { $filters{$filter}->{func}->($_) } @rows;
+ };
+ if ( $EVAL_ERROR && $config{debug}->{val} ) {
+ die $EVAL_ERROR;
+ }
+ }
+
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_pre_sort}} ) {
+ $listener->set_to_tbl_pre_sort($rows, $tbl);
+ }
+
+ # Sort.
+ if ( @rows && $meta->{sort_func} ) {
+ if ( $meta->{sort_dir} > 0 ) {
+ @rows = $meta->{sort_func}->( @rows );
+ }
+ else {
+ @rows = reverse $meta->{sort_func}->( @rows );
+ }
+ }
+
+ }
+ else {
+ # If the table isn't pivoted, just show all columns that are supposed to
+ # be shown; but eliminate aggonly columns if the table isn't aggregated.
+ my $aggregated = $meta->{aggregate};
+ $fmt_cols = [ grep { $aggregated || !$meta->{cols}->{$_}->{aggonly} } @{$meta->{visible}} ];
+ $fmt_meta = { map { $_ => $meta->{cols}->{$_} } @$fmt_cols };
+
+ # If the table is aggregated, re-order the group_by columns to the left of
+ # the display, and suppress 'agghide' columns.
+ if ( $aggregated ) {
+ my %is_group = map { $_ => 1 } @{$meta->{group_by}};
+ $fmt_cols = [ @{$meta->{group_by}}, grep { !$is_group{$_} } @$fmt_cols ];
+ $fmt_cols = [ grep { !$meta->{cols}->{$_}->{agghide} } @$fmt_cols ];
+ }
+ }
+
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_pre_create}} ) {
+ $listener->set_to_tbl_pre_create(\@rows, $tbl);
+ }
+
+ @rows = create_table( $fmt_cols, $fmt_meta, \@rows);
+ if ( !$meta->{hide_caption} && !$opts{n} && $config{display_table_captions}->{val} ) {
+ @rows = create_caption($meta->{capt}, @rows)
+ }
+
+ foreach my $listener ( @{$event_listener_for{set_to_tbl_post_create}} ) {
+ $listener->set_to_tbl_post_create(\@rows, $tbl);
+ }
+
+ return @rows;
+}
+
+# meta_to_hdr {{{3
+sub meta_to_hdr {
+ my $tbl = shift;
+ my $meta = $tbl_meta{$tbl};
+ my %labels = map { $_ => $meta->{cols}->{$_}->{hdr} } @{$meta->{visible}};
+ return \%labels;
+}
+
+# commify {{{3
+# From perlfaq5: add commas.
+sub commify {
+ my ( $num ) = @_;
+ $num = 0 unless defined $num;
+ $num =~ s/(^[-+]?\d+?(?=(?>(?:\d{3})+)(?!\d))|\G\d{3}(?=\d))/$1,/g;
+ return $num;
+}
+
+# set_precision {{{3
+# Trim to desired precision.
+sub set_precision {
+ my ( $num, $precision ) = @_;
+ $num = 0 unless defined $num;
+ $precision = $config{num_digits}->{val} if !defined $precision;
+ sprintf("%.${precision}f", $num);
+}
+
+# percent {{{3
+# Convert to percent
+sub percent {
+ my ( $num ) = @_;
+ $num = 0 unless defined $num;
+ my $digits = $config{num_digits}->{val};
+ return sprintf("%.${digits}f", $num * 100)
+ . ($config{show_percent}->{val} ? '%' : '');
+}
+
+# sparkify {{{3
+# Find the range (min to max) and divide it up. Each value then gets put into
+# a bucket and represented by one of these characters: _.-=^
+sub sparkify {
+ my @vals = @_;
+ my @chars = qw(_ . - = ^);
+ my $min = min(@vals);
+ my $max = max(@vals);
+ my $range = ($max - $min) / 4;
+ return "_" x scalar(@vals) if !$min || !$max || $max == $min || !$range;
+ my $result = "";
+ foreach my $v ( @vals ) {
+ $result .= $chars[ int(($v - $min) / $range) ];
+ }
+ return $result;
+}
+
+# shorten {{{3
+sub shorten {
+ my ( $num, $opts ) = @_;
+
+ return $num if !defined($num) || $opts{n} || $num !~ m/$num_regex/;
+
+ $opts ||= {};
+ my $pad = defined $opts->{pad} ? $opts->{pad} : '';
+ my $num_digits = defined $opts->{num_digits}
+ ? $opts->{num_digits}
+ : $config{num_digits}->{val};
+ my $force = defined $opts->{force};
+
+ my $n = 0;
+ while ( $num >= 1_024 ) {
+ $num /= 1_024;
+ ++$n;
+ }
+ return $num =~ m/\./ || $n || $force
+ ? sprintf("%.${num_digits}f%s", $num, ($pad,'k','M','G','T')[$n])
+ : $num;
+}
+
+# Utility functions {{{2
+# unique {{{3
+sub unique {
+ my %seen;
+ return grep { !$seen{$_}++ } @_;
+}
+
+# make_color_func {{{3
+sub make_color_func {
+ my ( $tbl ) = @_;
+ my @criteria;
+ foreach my $spec ( @{$tbl->{colors}} ) {
+ next unless exists $comp_ops{$spec->{op}};
+ my $val = $spec->{op} =~ m/^(?:eq|ne|le|ge|lt|gt)$/ ? "'$spec->{arg}'"
+ : $spec->{op} =~ m/^(?:=~|!~)$/ ? "m/" . quotemeta($spec->{arg}) . "/"
+ : $spec->{arg};
+ push @criteria,
+ "( defined \$set->{$spec->{col}} && \$set->{$spec->{col}} $spec->{op} $val ) { return '$spec->{color}'; }";
+ }
+ return undef unless @criteria;
+ my $sub = eval 'sub { my ( $set ) = @_; if ' . join(" elsif ", @criteria) . '}';
+ die if $EVAL_ERROR;
+ return $sub;
+}
+
+# make_sort_func {{{3
+# Gets a list of sort columns from the table, like "+cxn -time" and returns a
+# subroutine that will sort that way.
+sub make_sort_func {
+ my ( $tbl ) = @_;
+ my @criteria;
+
+ # Pivoted tables can be sorted by 'name' and set_x columns; others must be
+ # sorted by existing columns. TODO: this will crash if you toggle between
+ # pivoted and nonpivoted. I have several other 'crash' notes about this if
+ # this ever becomes possible.
+
+ if ( $tbl->{pivot} ) {
+ # Sort type is not really possible on pivoted columns, because a 'column'
+ # contains data from an entire non-pivoted row, so there could be a mix of
+ # numeric and non-numeric data. Thus everything has to be 'cmp' type.
+ foreach my $col ( split(/\s+/, $tbl->{sort_cols} ) ) {
+ next unless $col;
+ my ( $dir, $name ) = $col =~ m/([+-])?(\w+)$/;
+ next unless $name && $name =~ m/^(?:name|set_\d+)$/;
+ $dir ||= '+';
+ my $op = 'cmp';
+ my $df = "''";
+ push @criteria,
+ $dir eq '+'
+ ? "(\$a->{$name} || $df) $op (\$b->{$name} || $df)"
+ : "(\$b->{$name} || $df) $op (\$a->{$name} || $df)";
+ }
+ }
+ else {
+ foreach my $col ( split(/\s+/, $tbl->{sort_cols} ) ) {
+ next unless $col;
+ my ( $dir, $name ) = $col =~ m/([+-])?(\w+)$/;
+ next unless $name && $tbl->{cols}->{$name};
+ $dir ||= '+';
+ my $op = $tbl->{cols}->{$name}->{num} ? "<=>" : "cmp";
+ my $df = $tbl->{cols}->{$name}->{num} ? "0" : "''";
+ push @criteria,
+ $dir eq '+'
+ ? "(\$a->{$name} || $df) $op (\$b->{$name} || $df)"
+ : "(\$b->{$name} || $df) $op (\$a->{$name} || $df)";
+ }
+ }
+ return sub { return @_ } unless @criteria;
+ my $sub = eval 'sub { sort {' . join("||", @criteria) . '} @_; }';
+ die if $EVAL_ERROR;
+ return $sub;
+}
+
+# trunc {{{3
+# Shortens text to specified length.
+sub trunc {
+ my ( $text, $len ) = @_;
+ if ( length($text) <= $len ) {
+ return $text;
+ }
+ return substr($text, 0, $len);
+}
+
+# donut {{{3
+# Takes out the middle of text to shorten it.
+sub donut {
+ my ( $text, $len ) = @_;
+ return $text if length($text) <= $len;
+ my $max = length($text) - $len;
+ my $min = $max - 1;
+
+ # Try to remove a single "word" from somewhere in the center
+ if ( $text =~ s/_[^_]{$min,$max}_/_/ ) {
+ return $text;
+ }
+
+ # Prefer removing the end of a "word"
+ if ( $text =~ s/([^_]+)[^_]{$max}_/$1_/ ) {
+ return $text;
+ }
+
+ $text = substr($text, 0, int($len/2))
+ . "_"
+ . substr($text, int($len/2) + $max + 1);
+ return $text;
+}
+
+# crunch {{{3
+# Removes vowels and compacts repeated letters to shorten text.
+sub crunch {
+ my ( $text, $len ) = @_;
+ return $text if $len && length($text) <= $len;
+ $text =~ s/^IB_\w\w_//;
+ $text =~ s/(?<![_ ])[aeiou]//g;
+ $text =~ s/(.)\1+/$1/g;
+ return $text;
+}
+
+# collapse_ws {{{3
+# Collapses all whitespace to a single space.
+sub collapse_ws {
+ my ( $text ) = @_;
+ return '' unless defined $text;
+ $text =~ s/\s+/ /g;
+ return $text;
+}
+
+# Strips out non-printable characters within fields, which freak terminals out.
+sub no_ctrl_char {
+ my ( $text ) = @_;
+ return '' unless defined $text;
+ my $charset = $config{charset}->{val};
+ if ( $charset && $charset eq 'unicode' ) {
+ $text =~ s/
+ ("(?:(?!(?<!\\)").)*" # Double-quoted string
+ |'(?:(?!(?<!\\)').)*') # Or single-quoted string
+ /$1 =~ m#\p{IsC}# ? "[BINARY]" : $1/egx;
+ }
+ elsif ( $charset && $charset eq 'none' ) {
+ $text =~ s/
+ ("(?:(?!(?<!\\)").)*"
+ |'(?:(?!(?<!\\)').)*')
+ /[TEXT]/gx;
+ }
+ else { # The default is 'ascii'
+ $text =~ s/
+ ("(?:(?!(?<!\\)").)*"
+ |'(?:(?!(?<!\\)').)*')
+ /$1 =~ m#[^\040-\176]# ? "[BINARY]" : $1/egx;
+ }
+ return $text;
+}
+
+# word_wrap {{{3
+# Wraps text at word boundaries so it fits the screen.
+sub word_wrap {
+ my ( $text, $width) = @_;
+ $width ||= $this_term_size[0];
+ $text =~ s/(.{0,$width})(?:\s+|$)/$1\n/g;
+ $text =~ s/ +$//mg;
+ return $text;
+}
+
+# draw_screen {{{3
+# Prints lines to the screen. The first argument is an arrayref. Each
+# element of the array is either a string or an arrayref. If it's a string it
+# just gets printed. If it's an arrayref, the first element is the string to
+# print, and the second is args to colored().
+sub draw_screen {
+ my ( $display_lines, $prefs ) = @_;
+ if ( !$opts{n} && $config{show_statusbar}->{val} ) {
+ unshift @$display_lines, create_statusbar();
+ }
+
+ foreach my $listener ( @{$event_listener_for{draw_screen}} ) {
+ $listener->draw_screen($display_lines);
+ }
+
+ $clear_screen_sub->()
+ if $prefs->{clear} || !$modes{$config{mode}->{val}}->{no_clear_screen};
+ if ( $opts{n} || $prefs->{raw} ) {
+ my $num_lines = 0;
+ my $ts = $opts{t} ? POSIX::strftime($config{timeformat}->{val}, localtime) : '';
+ if ( $opts{t} ) {
+ if ( $opts{t} == 1 ) {
+ print "\n$ts\n\n";
+ $ts = ""; # Prevent it from being written on every line.
+ $num_lines++;
+ }
+ else {
+ $ts .= " ";
+ }
+ }
+ print join("\n",
+ map {
+ $num_lines++;
+ ref $_
+ ? colored($ts . $_->[0], $_->[1])
+ : $ts . $_;
+ }
+ grep { !$opts{n} || $_ } # Suppress empty lines
+ @$display_lines);
+ if ( $opts{n} && $num_lines ) {
+ print "\n";
+ }
+ }
+ else {
+ my $max_lines = $prefs->{show_all}
+ ? scalar(@$display_lines)- 1
+ : min(scalar(@$display_lines), $this_term_size[1]);
+ print join("\n",
+ map {
+ ref $_
+ ? colored(substr($_->[0], 0, $this_term_size[0]), $_->[1])
+ : substr($_, 0, $this_term_size[0]);
+ } @$display_lines[0..$max_lines - 1]);
+ }
+}
+
+# fuzzy_time {{{3
+sub fuzzy_time {
+ my ( $secs ) = @_;
+ return '' unless $secs;
+ return sprintf('%.2f', $secs) if $secs =~ m/^.\./;
+ $secs =~ s/\..*$//;
+ return $secs < 180 ? "${secs}s"
+ : $secs < 3600 ? sprintf("%dm", $secs / 60)
+ : $secs < 3600 * 3 ? sprintf("%dh%dm", $secs / 3600, ($secs % 3600) / 60)
+ : $secs < 86400 ? sprintf("%dh", $secs / 3600)
+ : $secs < 86400* 3 ? sprintf("%dd%dh", $secs / 86400, ($secs % 86400) / 3600)
+ : sprintf("%dd", $secs / 86400);
+}
+
+sub fuzzy_to_secs {
+ my ($t) = @_;
+ return 0 unless $t;
+ my ($num, $suffix) = $t =~ m/(\d+)([a-z])?$/;
+ return $num unless $suffix;
+ return $suffix eq 's' ? $num # Seconds
+ : $suffix eq 'm' ? $num * 60 # Minutes
+ : $suffix eq 'h' ? $num * 3600 # Hours
+ : $num * 86400; # Days
+}
+
+# distill {{{3
+sub distill {
+ my ( $query ) = @_;
+ return "" unless $query;
+ my $orig_query = $query;
+
+ $query =~ m/\A\s*call\s+(\S+)\(/i && return "CALL $1";
+ $query =~ m/\A\s*use\s+/ && return "USE";
+ $query =~ m/\A\s*UNLOCK TABLES/i && return "UNLOCK";
+ $query =~ m/\A\s*xa\s+(\S+)/i && return "XA_$1";
+
+ # Strip out comments
+ my $olc_re = qr/(?:--|#)[^'"\r\n]*(?=[\r\n]|\Z)/; # One-line comments
+ my $mlc_re = qr#/\*[^!].*?\*/#sm; # But not /*!version */
+ my $vlc_re = qr#/\*.*?[0-9+].*?\*/#sm; # For SHOW + /*!version */
+ my $vlc_rf = qr#^(SHOW).*?/\*![0-9+].*?\*/#sm; # Variation for SHOW
+ $query =~ s/$olc_re//go;
+ $query =~ s/$mlc_re//go;
+ if ( $query =~ m/$vlc_rf/i ) { # contains show + version
+ $query =~ s/$vlc_re//go;
+ }
+
+ # Handle SHOW queries
+ if ( $query =~ m/\A\s*SHOW\s+/i ) {
+ $query = uc $query;
+ $query =~ s/\s+(?:GLOBAL|SESSION|FULL|STORAGE|ENGINE)\b/ /g;
+ $query =~ s/\s+COUNT[^)]+\)//g;
+ $query =~ s/\s+(?:FOR|FROM|LIKE|WHERE|LIMIT|IN)\b.+//ms;
+ $query =~ s/\A(SHOW(?:\s+\S+){1,2}).*\Z/$1/s;
+ $query =~ s/\s+/ /g;
+ }
+
+ # Find verbs and tables.
+ my ($verbs, $table);
+
+ # Handle DDL operations (dds)
+ my $tbl_ident = qr/(?:`[^`]+`|\w+)(?:\.(?:`[^`]+`|\w+))?/;
+ my $tbl_regex = qr{
+ \b(?:FROM|JOIN|(?<!KEY\s)UPDATE|INTO(?!\s+TABLE)|INTO\s+TABLE) # Words that precede table names
+ \b\s*
+ \(? # Optional paren around tables
+ ($tbl_ident
+ (?: (?:\s+ (?:AS\s+)? \w+)?, \s*$tbl_ident )*
+ )
+ }xio;
+ my ( $ddl ) = $query =~ m/^\s*((?:CREATE|ALTER|TRUNCATE|DROP|RENAME|CHECK|REPAIR))\b/i;
+ if ( $ddl ) {
+ my ( $obj ) = $query =~ m/$ddl.+(DATABASE|EVENT|FUNCTION|INDEX|LOGFILE GROUP|PROCEDURE|SERVER|TABLE|TABLESPACE|TRIGGER|VIEW)\b/i;
+ if ( $obj ) {
+ $query =~ s/$obj\s*if\s*(?:not\s*)?exists/$obj/i;
+ $verbs = uc($ddl . ($obj ? " $obj" : ''));
+ ($table) = $query =~ m/(?:TABLE|DATABASE)\s+($tbl_ident)(\s+.*)?/i;
+ }
+ }
+ else {
+ my $verbs_pat = qr{^SHOW|^FLUSH|^COMMIT|^ROLLBACK|^BEGIN|SELECT|INSERT
+ |UPDATE|DELETE|REPLACE|^SET|UNION|^START|^LOCK|^LOAD}xi;
+ my @verbs = $query =~ m/\b($verbs_pat)\b/gio;
+ @verbs = do {
+ my $last = '';
+ grep { my $pass = $_ ne $last; $last = $_; $pass } map { uc } @verbs;
+ };
+
+ if ( ($verbs[0] || '') eq 'SELECT' && @verbs > 1 ) {
+ # False-positive verbs after SELECT
+ my $union = grep { $_ eq 'UNION' } @verbs;
+ @verbs = $union ? qw(SELECT UNION) : qw(SELECT);
+ }
+
+ my %seen;
+ $verbs = join(q{ }, grep { !$seen{$_}++ } @verbs);
+ }
+
+ if ( $verbs && $verbs =~ m/^SHOW/ ) {
+ my %alias_for = qw(
+ SCHEMA DATABASE
+ KEYS INDEX
+ INDEXES INDEX
+ );
+ map { $verbs =~ s/$_/$alias_for{$_}/ } keys %alias_for;
+ $query = $verbs;
+ }
+ else {
+ my @tables;
+ $query =~ s/ (?:LOW_PRIORITY|IGNORE|STRAIGHT_JOIN)//ig;
+ if ( $query =~ /^\s*LOCK\s+TABLES/i ) {
+ $query =~ s/^(\s*LOCK\s+TABLES\s+)//i;
+ $query =~ s/\s+(?:READ|WRITE|LOCAL)+\s*//gi;
+ $query = "FROM $query";
+ }
+ $query =~ s/\\["']//g; # quoted strings
+ $query =~ s/".*?"/?/sg; # quoted strings
+ $query =~ s/'.*?'/?/sg; # quoted strings
+
+ foreach my $tbls ( $query =~ m/$tbl_regex/gio ) {
+ next if $tbls =~ m/\ASELECT\b/i;
+ foreach my $tbl ( split(',', $tbls) ) {
+ $tbl =~ s/\s*($tbl_ident)(\s+.*)?/$1/gio;
+ if ( $tbl !~ m/[a-zA-Z]/ ) {
+ # Skip suspicious table name
+ next;
+ }
+ push @tables, $tbl;
+ }
+ }
+
+ # If we have a bunch of tables like db1.tbl1 db1.tbl2, convert to
+ # db1.tbl1 -.tbl2 etc. Also remove repeated tables, and strip `quotes`.
+ $query = $verbs;
+ my $prev = '';
+ foreach my $t ( @tables, $table ) {
+ next unless $t;
+ $t =~ s/`//g;
+ next if $t eq $prev;
+ my ($prefix, undef) = split(/\./, $prev);
+ $prev = $t;
+ if ( $prefix ) {
+ $t =~ s/^$prefix\./-./;
+ }
+ $query .= " " . $t;
+ }
+ }
+
+ # die $orig_query if $query eq 'LOCK lock';
+ return $query;
+}
+
+# secs_to_time {{{3
+sub secs_to_time {
+ my ( $secs, $fmt ) = @_;
+ $secs ||= 0;
+
+ # If the inbound value has a decimal point, then format the seconds with milliseconds.
+ my $hires = $secs =~ m/\./ ? '%06.3f' : '%02d';
+
+ if ( !$secs ) {
+ return sprintf("00:$hires", $secs);
+ }
+
+ # Decide what format to use, if not given
+ $fmt ||= $secs >= 86_400 ? 'd'
+ : $secs >= 3_600 ? 'h'
+ : 'm';
+
+ return
+ $fmt eq 'd' ? sprintf(
+ "%d+%02d:%02d:$hires",
+ int($secs / 86_400),
+ int(($secs % 86_400) / 3_600),
+ int(($secs % 3_600) / 60),
+ $secs % 60 + ($secs - int($secs)))
+ : $fmt eq 'h' ? sprintf(
+ "%02d:%02d:$hires",
+ int(($secs % 86_400) / 3_600),
+ int(($secs % 3_600) / 60),
+ $secs % 60 + ($secs - int($secs)))
+ : sprintf(
+ "%02d:$hires",
+ int(($secs % 3_600) / 60),
+ $secs % 60 + ($secs - int($secs)));
+}
+
+# dulint_to_int {{{3
+# Takes a number that InnoDB formats as two ulint integers, like transaction IDs
+# and such, and turns it into a single integer
+sub dulint_to_int {
+ my $num = shift;
+ return 0 unless $num;
+ my ( $high, $low ) = $num =~ m/^(\d+) (\d+)$/;
+ return $low unless $high;
+ return $low + ( $high * $MAX_ULONG );
+}
+
+# create_statusbar {{{3
+sub create_statusbar {
+ my $mode = $config{mode}->{val};
+ my @cxns = sort { $a cmp $b } get_connections();
+
+ my $modeline = ( $config{readonly}->{val} ? '[RO] ' : '' )
+ . $modes{$mode}->{hdr} . " (? for help)";
+ my $mode_width = length($modeline);
+ my $remaining_width = $this_term_size[0] - $mode_width - 1;
+ my $result;
+
+ # The thingie in top-right that says what we're monitoring.
+ my $cxn = '';
+
+ if ( 1 == @cxns && $dbhs{$cxns[0]} && $dbhs{$cxns[0]}->{dbh} ) {
+ $cxn = $dbhs{$cxns[0]}->{dbh}->{mysql_serverinfo} || '';
+ }
+ else {
+ if ( $modes{$mode}->{server_group} ) {
+ $cxn = "Servers: " . $modes{$mode}->{server_group};
+ my $err_count = grep { $dbhs{$_} && $dbhs{$_}->{failed} } @cxns;
+ if ( $err_count ) {
+ $cxn .= "(" . ( scalar(@cxns) - $err_count ) . "/" . scalar(@cxns) . ")";
+ }
+ }
+ else {
+ $cxn = join(' ', map { ($dbhs{$_}->{failed} ? '!' : '') . $_ }
+ grep { $dbhs{$_} } @cxns);
+ }
+ }
+
+ if ( 1 == @cxns ) {
+ get_driver_status(@cxns);
+ my $vars = $vars{$cxns[0]}->{$clock};
+ my $inc = inc(0, $cxns[0]);
+
+ # Format server uptime human-readably, calculate QPS...
+ my $uptime = fuzzy_time( $vars->{Uptime_hires} );
+ my $qps = ($inc->{Questions}||0) / ($inc->{Uptime_hires}||1);
+ my $ibinfo = '';
+
+ if ( exists $vars->{IB_last_secs} ) {
+ $ibinfo .= "InnoDB $vars->{IB_last_secs}s ";
+ if ( $vars->{IB_got_all} ) {
+ if ( ($mode eq 'T' || $mode eq 'W')
+ && $vars->{IB_tx_is_truncated} ) {
+ $ibinfo .= ':^|';
+ }
+ else {
+ $ibinfo .= ':-)';
+ }
+ }
+ else {
+ $ibinfo .= ':-(';
+ }
+ }
+ $result = sprintf(
+ "%-${mode_width}s %${remaining_width}s",
+ $modeline,
+ join(', ', grep { $_ } (
+ $cxns[0],
+ $uptime,
+ $ibinfo,
+ shorten($qps) . " QPS",
+ ($vars->{Threads} || 0) . "/" . ($vars->{Threads_running} || 0) . "/" . ($vars->{Threads_cached} || 0) . " con/run/cac thds",
+ $cxn)));
+ }
+ else {
+ $result = sprintf(
+ "%-${mode_width}s %${remaining_width}s",
+ $modeline,
+ $cxn);
+ }
+
+ return $config{color}->{val} ? [ $result, 'bold reverse' ] : $result;
+}
+
+# Database connections {{{3
+sub add_new_dsn {
+ my ( $name, $dsn, $dl_table, $have_user, $user, $have_pass, $pass, $savepass ) = @_;
+
+ if ( defined $name ) {
+ $name =~ s/[\s:;]//g;
+ }
+
+ if ( !$name ) {
+ print word_wrap("Choose a name for the connection. It cannot contain "
+ . "whitespace, colons or semicolons."), "\n\n";
+ do {
+ $name = prompt("Enter a name");
+ $name =~ s/[\s:;]//g;
+ } until ( $name );
+ }
+
+ if ( !$dsn ) {
+ do {
+ $clear_screen_sub->();
+ print "Typical DSN strings look like\n DBI:mysql:;host=hostname;port=port\n"
+ . "The db and port are optional and can usually be omitted.\n"
+ . "If you specify 'mysql_read_default_group=mysql' many options can be read\n"
+ . "from your mysql options files (~/.my.cnf, /etc/my.cnf).\n\n";
+ $dsn = prompt("Enter a DSN string", undef, "DBI:mysql:;mysql_read_default_group=mysql;host=$name");
+ } until ( $dsn );
+ }
+ if ( !$dl_table ) {
+ $clear_screen_sub->();
+ my $dl_table = prompt("Optional: enter a table (must not exist) to use when resetting InnoDB deadlock information",
+ undef, 'test.innotop_dl');
+ }
+
+ $connections{$name} = {
+ dsn => $dsn,
+ dl_table => $dl_table,
+ have_user => $have_user,
+ user => $user,
+ have_pass => $have_pass,
+ pass => $pass,
+ savepass => $savepass
+ };
+}
+
+sub add_new_server_group {
+ my ( $name ) = @_;
+
+ if ( defined $name ) {
+ $name =~ s/[\s:;]//g;
+ }
+
+ if ( !$name ) {
+ print word_wrap("Choose a name for the group. It cannot contain "
+ . "whitespace, colons or semicolons."), "\n\n";
+ do {
+ $name = prompt("Enter a name");
+ $name =~ s/[\s:;]//g;
+ } until ( $name );
+ }
+
+ my @cxns;
+ do {
+ $clear_screen_sub->();
+ @cxns = select_cxn("Choose servers for $name", keys %connections);
+ } until ( @cxns );
+
+ $server_groups{$name} = \@cxns;
+ return $name;
+}
+
+sub get_var_set {
+ my ( $name ) = @_;
+ while ( !$name || !exists($var_sets{$config{$name}->{val}}) ) {
+ $name = choose_var_set($name);
+ }
+ return $var_sets{$config{$name}->{val}}->{text};
+}
+
+sub add_new_var_set {
+ my ( $name ) = @_;
+
+ if ( defined $name ) {
+ $name =~ s/\W//g;
+ }
+
+ if ( !$name ) {
+ do {
+ $name = prompt("Enter a name");
+ $name =~ s/\W//g;
+ } until ( $name );
+ }
+
+ my $variables;
+ do {
+ $clear_screen_sub->();
+ $variables = prompt("Enter variables for $name", undef );
+ } until ( $variables );
+
+ $var_sets{$name} = { text => $variables, user => 1 };
+}
+
+sub next_server {
+ my $mode = $config{mode}->{val};
+ my @cxns = sort keys %connections;
+ my ($cur) = get_connections($mode);
+ $cur ||= $cxns[0];
+ my $pos = grep { $_ lt $cur } @cxns;
+ my $newpos = ($pos + 1) % @cxns;
+ $modes{$mode}->{server_group} = '';
+ $modes{$mode}->{connections} = [ $cxns[$newpos] ];
+ $clear_screen_sub->();
+}
+
+sub next_server_group {
+ my $mode = shift || $config{mode}->{val};
+ my @grps = sort keys %server_groups;
+ my $curr = $modes{$mode}->{server_group};
+
+ return unless @grps;
+
+ if ( $curr ) {
+ # Find the current group's position.
+ my $pos = 0;
+ while ( $curr ne $grps[$pos] ) {
+ $pos++;
+ }
+ $modes{$mode}->{server_group} = $grps[ ($pos + 1) % @grps ];
+ }
+ else {
+ $modes{$mode}->{server_group} = $grps[0];
+ }
+}
+
+# Get a list of connection names used in this mode.
+sub get_connections {
+ if ( $file ) {
+ return qw(file);
+ }
+ my $mode = shift || $config{mode}->{val};
+ my @connections = $modes{$mode}->{server_group}
+ ? @{$server_groups{$modes{$mode}->{server_group}}}
+ : @{$modes{$mode}->{connections}};
+ if ( $modes{$mode}->{one_connection} ) {
+ @connections = @connections ? $connections[0] : ();
+ }
+ # If the connections are the same as a server group, we set the mode's
+ # group to that group.
+ if ( ! $modes{$mode}->{server_group} ) {
+ my $maybe_group = join(',', sort @connections);
+ foreach my $g ( keys %server_groups ) {
+ my $group_conns = join(',', sort @{$server_groups{$g}});
+ if ( $maybe_group eq $group_conns ) {
+ $modes{$mode}->{server_group} = $g;
+ last;
+ }
+ }
+ }
+ return unique(@connections);
+}
+
+# Get a list of tables used in this mode. If innotop is running non-interactively, just use the first.
+sub get_visible_tables {
+ my $mode = shift || $config{mode}->{val};
+ my @tbls = @{$modes{$mode}->{visible_tables}};
+ if ( $opts{n} ) {
+ return $tbls[0];
+ }
+ else {
+ return @tbls;
+ }
+}
+
+# Choose from among available connections or server groups.
+# If the mode has a server set in use, prefers that instead.
+sub choose_connections {
+ $clear_screen_sub->();
+ my $mode = $config{mode}->{val};
+ my $meta = { map { $_ => $connections{$_}->{dsn} } keys %connections };
+ foreach my $group ( keys %server_groups ) {
+ $meta->{"#$group"} = join(' ', @{$server_groups{$group}});
+ }
+
+ my $choices = prompt_list("Choose connections or a group for $mode mode",
+ undef, sub { return keys %$meta }, $meta);
+
+ my @choices = unique(grep { $_ } $choices =~ m/(\S+)/g);
+ if ( @choices ) {
+ if ( $choices[0] =~ s/^#// && exists $server_groups{$choices[0]} ) {
+ $modes{$mode}->{server_group} = $choices[0];
+ }
+ else {
+ $modes{$mode}->{connections} = [ grep { exists $connections{$_} } @choices ];
+ }
+ }
+}
+
+# Accepts a DB connection name and the name of a prepared query (e.g. status, kill).
+# Also a list of params for the prepared query. This allows not storing prepared
+# statements globally. Returns a $sth that's been executed.
+# ERROR-HANDLING SEMANTICS: if the statement throws an error, propagate, but if the
+# connection has gone away or can't connect, DO NOT. Just return undef.
+sub do_stmt {
+ my ( $cxn, $stmt_name, @args ) = @_;
+
+ return undef if $file;
+
+ # Test if the cxn should not even be tried
+ return undef if $dbhs{$cxn}
+ && $dbhs{$cxn}->{failed}
+ && ( !$dbhs{$cxn}->{dbh} || !$dbhs{$cxn}->{dbh}->{Active} || $dbhs{$cxn}->{mode} eq $config{mode}->{val} );
+
+ my $sth;
+ my $retries = 1;
+ my $success = 0;
+ TRY:
+ while ( $retries-- >= 0 && !$success ) {
+
+ eval {
+ my $dbh = connect_to_db($cxn);
+
+ # If the prepared query doesn't exist, make it.
+ if ( !exists $dbhs{$cxn}->{stmts}->{$stmt_name} ) {
+ $dbhs{$cxn}->{stmts}->{$stmt_name} = $stmt_maker_for{$stmt_name}->($dbh);
+ }
+
+ $sth = $dbhs{$cxn}->{stmts}->{$stmt_name};
+ if ( $sth ) {
+ $sth->execute(@args);
+ }
+ $success = 1;
+ };
+ if ( $EVAL_ERROR ) {
+ if ( $EVAL_ERROR =~ m/$nonfatal_errs/ ) {
+ handle_cxn_error($cxn, $EVAL_ERROR);
+ }
+ else {
+ die "$cxn $stmt_name: $EVAL_ERROR";
+ }
+ if ( $retries < 0 ) {
+ $sth = undef;
+ }
+ }
+ }
+
+ if ( $sth && $sth->{NUM_OF_FIELDS} ) {
+ sleep($stmt_sleep_time_for{$stmt_name}) if $stmt_sleep_time_for{$stmt_name};
+ return $sth;
+ }
+}
+
+# Marks a connection as failed. When we sleep between redraws, we try to
+# reopen.
+sub handle_cxn_error {
+ my ( $cxn, $err ) = @_;
+ my $meta = $dbhs{$cxn};
+ $meta->{failed} = 1;
+
+ # This is used so errors that have to do with permissions needed by the current
+ # mode will get displayed as long as we're in this mode, but get ignored if the
+ # mode changes.
+ $meta->{mode} = $config{mode}->{val};
+
+ # Strip garbage from the error text if possible.
+ $err =~ s/\s+/ /g;
+ if ( $err =~ m/failed: (.*?) at \S*innotop line/ ) {
+ $err = $1;
+ }
+
+ $meta->{last_err} = $err;
+ if ( $config{show_cxn_errors}->{val} ) {
+ print STDERR "DB error: $cxn $err" if $config{debug}->{val};
+ }
+}
+
+# Accepts a DB connection name and a (string) query. Returns a $sth that's been
+# executed.
+sub do_query {
+ my ( $cxn, $query ) = @_;
+
+ return undef if $file;
+
+ # Test if the cxn should not even be tried
+ return undef if $dbhs{$cxn}
+ && $dbhs{$cxn}->{failed}
+ && ( !$dbhs{$cxn}->{dbh} || !$dbhs{$cxn}->{dbh}->{Active} || $dbhs{$cxn}->{mode} eq $config{mode}->{val} );
+
+ my $sth;
+ my $retries = 1;
+ my $success = 0;
+ TRY:
+ while ( $retries-- >= 0 && !$success ) {
+
+ eval {
+ my $dbh = connect_to_db($cxn);
+
+ $sth = $dbh->prepare($query);
+ $sth->execute();
+ $success = 1;
+ };
+ if ( $EVAL_ERROR ) {
+ if ( $EVAL_ERROR =~ m/$nonfatal_errs/ ) {
+ handle_cxn_error($cxn, $EVAL_ERROR);
+ }
+ else {
+ die $EVAL_ERROR;
+ }
+ if ( $retries < 0 ) {
+ $sth = undef;
+ }
+ }
+ }
+
+ return $sth;
+}
+
+sub get_uptime {
+ my ( $cxn ) = @_;
+ $dbhs{$cxn}->{start_time} ||= time();
+ # Avoid dividing by zero
+ return (time() - $dbhs{$cxn}->{start_time}) || .001;
+}
+
+sub connect_to_db {
+ my ( $cxn ) = @_;
+
+ $dbhs{$cxn} ||= {
+ stmts => {}, # bucket for prepared statements.
+ start_time => 0,
+ dbh => undef,
+ };
+ my $href = $dbhs{$cxn};
+
+ if ( !$href->{dbh} || ref($href->{dbh}) !~ m/DBI/ || !$href->{dbh}->ping ) {
+ my $dbh = get_new_db_connection($cxn);
+ @{$href}{qw(dbh failed start_time stmts)} = ($dbh, 0, 0, {});
+
+ # Derive and store the server's start time in hi-res
+ my $uptime = $dbh->selectrow_hashref("show status like 'Uptime'")->{value};
+ $href->{start_time} = time() - $uptime;
+
+ # Set timeouts so an unused connection stays alive.
+ # For example, a connection might be used in Q mode but idle in T mode.
+ if ( version_ge($dbh, '4.0.3')) {
+ my $timeout = $config{cxn_timeout}->{val};
+ $dbh->do("set session wait_timeout=$timeout, interactive_timeout=$timeout");
+ }
+ }
+ return $href->{dbh};
+}
+
+# Compares versions like 5.0.27 and 4.1.15-standard-log
+sub version_ge {
+ my ( $dbh, $target ) = @_;
+ my $version = sprintf('%03d%03d%03d', $dbh->{mysql_serverinfo} =~ m/^(\d+).(\d+).(\d+)/g);
+ return $version ge sprintf('%03d%03d%03d', $target =~ m/(\d+)/g);
+}
+
+# Extracts status values that can be gleaned from the DBD driver without doing a whole query.
+sub get_driver_status {
+ my @cxns = @_;
+ if ( !$info_gotten{driver_status}++ ) {
+ foreach my $cxn ( @cxns ) {
+ next unless $dbhs{$cxn} && $dbhs{$cxn}->{dbh} && $dbhs{$cxn}->{dbh}->{Active};
+ $vars{$cxn}->{$clock} ||= {};
+ my $vars = $vars{$cxn}->{$clock};
+ my %res = map { $_ =~ s/ +/_/g; $_ } $dbhs{$cxn}->{dbh}->{mysql_stat} =~ m/(\w[^:]+): ([\d\.]+)/g;
+ map { $vars->{$_} ||= $res{$_} } keys %res;
+ $vars->{Uptime_hires} ||= get_uptime($cxn);
+ $vars->{cxn} = $cxn;
+ }
+ }
+}
+
+sub get_new_db_connection {
+ my ( $connection, $destroy ) = @_;
+ if ( $file ) {
+ die "You can't connect to a MySQL server while monitoring a file. This is probably a bug.";
+ }
+
+ my $dsn = $connections{$connection}
+ or die "No connection named '$connection' is defined in your configuration";
+
+ # don't ask for a username if mysql_read_default_group=client is in the DSN
+ if ( !defined $dsn->{have_user} and $dsn->{dsn} !~ /mysql_read_default_group=client/ ) {
+ my $answer = prompt("Do you want to specify a username for $connection?", undef, 'n');
+ $dsn->{have_user} = $answer && $answer =~ m/1|y/i;
+ }
+
+ # don't ask for a password if mysql_read_default_group=client is in the DSN
+ if ( !defined $dsn->{have_pass} and $dsn->{dsn} !~ /mysql_read_default_group=client/ ) {
+ my $answer = prompt("Do you want to specify a password for $connection?", undef, 'n');
+ $dsn->{have_pass} = $answer && $answer =~ m/1|y/i;
+ }
+
+ if ( !$dsn->{user} && $dsn->{have_user} ) {
+ my $user = $ENV{USERNAME} || $ENV{USER} || getlogin() || getpwuid($REAL_USER_ID) || undef;
+ $dsn->{user} = prompt("Enter username for $connection", undef, $user);
+ }
+
+ if ( !defined $dsn->{user} ) {
+ $dsn->{user} = '';
+ }
+
+ if ( !$dsn->{pass} && !$dsn->{savepass} && $dsn->{have_pass} ) {
+ $dsn->{pass} = prompt_noecho("Enter password for '$dsn->{user}' on $connection");
+ print "\n";
+ if ( !defined($dsn->{savepass}) ) {
+ my $answer = prompt("Save password in plain text in the config file?", undef, 'y');
+ $dsn->{savepass} = $answer && $answer =~ m/1|y/i;
+ }
+ }
+
+ my $dbh = DBI->connect(
+ $dsn->{dsn}, $dsn->{user}, $dsn->{pass},
+ { RaiseError => 1, PrintError => 0, AutoCommit => 1 });
+ $dbh->{InactiveDestroy} = 1 unless $destroy; # Can't be set in $db_options
+ $dbh->{FetchHashKeyName} = 'NAME_lc'; # Lowercases all column names for fetchrow_hashref
+ return $dbh;
+}
+
+sub get_cxn_errors {
+ my @cxns = @_;
+ return () unless $config{show_cxn_errors_in_tbl}->{val};
+ return
+ map { [ $_ . ': ' . $dbhs{$_}->{last_err}, 'red' ] }
+ grep { $dbhs{$_} && $dbhs{$_}->{failed} && $dbhs{$_}->{mode} eq $config{mode}->{val} }
+ @cxns;
+}
+
+# Setup and tear-down functions {{{2
+
+# Takes a string and turns it into a hashref you can apply to %tbl_meta tables. The string
+# can be in the form 'foo, bar, foo/bar, foo as bar' much like a SQL SELECT statement.
+sub compile_select_stmt {
+ my ($str) = @_;
+ my @exps = $str =~ m/\s*([^,]+(?i:\s+as\s+[^,\s]+)?)\s*(?=,|$)/g;
+ my %cols;
+ my @visible;
+ foreach my $exp ( @exps ) {
+ my ( $text, $colname );
+ if ( $exp =~ m/as\s+(\w+)\s*/ ) {
+ $colname = $1;
+ $exp =~ s/as\s+(\w+)\s*//;
+ $text = $exp;
+ }
+ else {
+ $text = $colname = $exp;
+ }
+ my ($func, $err) = compile_expr($text);
+ $cols{$colname} = {
+ src => $text,
+ hdr => $colname,
+ num => 0,
+ func => $func,
+ };
+ push @visible, $colname;
+ }
+ return (\%cols, \@visible);
+}
+
+# compile_filter {{{3
+sub compile_filter {
+ my ( $text ) = @_;
+ my ( $sub, $err );
+ eval "\$sub = sub { my \$set = shift; $text }";
+ if ( $EVAL_ERROR ) {
+ $EVAL_ERROR =~ s/at \(eval.*$//;
+ $sub = sub { return $EVAL_ERROR };
+ $err = $EVAL_ERROR;
+ }
+ return ( $sub, $err );
+}
+
+# compile_expr {{{3
+sub compile_expr {
+ my ( $expr ) = @_;
+ # Leave built-in functions alone so they get called as Perl functions, unless
+ # they are the only word in $expr, in which case treat them as hash keys.
+ if ( $expr =~ m/\W/ ) {
+ $expr =~ s/(?<!\{|\$)\b([A-Za-z]\w{2,})\b/is_func($1) ? $1 : "\$set->{$1}"/eg;
+ }
+ else {
+ $expr = "\$set->{$expr}";
+ }
+ my ( $sub, $err );
+ my $quoted = quotemeta($expr);
+ eval qq{
+ \$sub = sub {
+ my (\$set, \$cur, \$pre) = \@_;
+ my \$val = eval { $expr };
+ if ( \$EVAL_ERROR && \$config{debug}->{val} ) {
+ \$EVAL_ERROR =~ s/ at \\(eval.*//s;
+ die "\$EVAL_ERROR in expression $quoted";
+ }
+ return \$val;
+ }
+ };
+ if ( $EVAL_ERROR ) {
+ if ( $config{debug}->{val} ) {
+ die $EVAL_ERROR;
+ }
+ $EVAL_ERROR =~ s/ at \(eval.*$//;
+ $sub = sub { return $EVAL_ERROR };
+ $err = $EVAL_ERROR;
+ }
+ return ( $sub, $err );
+}
+
+# finish {{{3
+# This is a subroutine because it's called from a key to quit the program.
+sub finish {
+ save_config();
+ foreach my $cxn ( values %dbhs ) {
+ eval {
+ foreach my $sth ( values %{$cxn->{stmts}} ) {
+ $sth->finish;
+ }
+ $cxn->{dbh}->disconnect;
+ };
+ # Ignore eval errors, we just don't care
+ }
+ ReadMode('normal') unless $opts{n};
+ print "\n";
+ exit(0);
+}
+
+# core_dump {{{3
+sub core_dump {
+ my $msg = shift;
+ if ($config{debugfile}->{val} && $config{debug}->{val}) {
+ eval {
+ open my $file, '>>', $config{debugfile}->{val};
+ if ( %vars ) {
+ print $file "Current variables:\n" . Dumper(\%vars);
+ }
+ close $file;
+ };
+ }
+ print $msg;
+}
+
+# migrate_config {{{3
+sub migrate_config {
+
+ my ($old_filename, $new_filename) = @_;
+
+ # don't proceed if old file doesn't exist
+ if ( ! -f $old_filename ) {
+ die "Error migrating '$old_filename': file doesn't exist.\n";
+ }
+ # don't migrate files if new file exists
+ elsif ( -f $new_filename ) {
+ die "Error migrating '$old_filename' to '$new_filename': new file already exists.\n";
+ }
+ # if migrating from one file to another in the same directory, just rename them
+ if (dirname($old_filename) eq dirname($new_filename)) {
+ rename($old_filename, $new_filename)
+ or die "Can't rename '$old_filename' to '$new_filename': $OS_ERROR";
+ }
+ # otherwise, move the existing conf file to a temp file, make the necessary directory structure,
+ # and move the temp conf file to its new home
+ else {
+ my $tmp = File::Temp->new( TEMPLATE => 'innotopXXXXX', DIR => $homepath, SUFFIX => '.conf');
+ my $tmp_filename = $tmp->filename;
+ my $dirname = dirname($new_filename);
+ rename($old_filename, $tmp_filename)
+ or die "Can't rename '$old_filename' to '$tmp_filename': $OS_ERROR";
+ mkdir($dirname) or die "Can't create directory '$dirname': $OS_ERROR";
+ mkdir("$dirname/plugins") or die "Can't create directory '$dirname/plugins': $OS_ERROR";
+ rename($tmp_filename, $new_filename)
+ or die "Can't rename '$tmp_filename' to '$new_filename': $OS_ERROR";
+ }
+}
+
+# load_config {{{3
+sub load_config {
+
+ my ($old_filename, $answer);
+
+ if ( $opts{u} or $opts{p} or $opts{h} or $opts{P} or $opts{S} ) {
+ my @params = $dsn_parser->get_cxn_params(\%opts); # dsn=$params[0]
+ add_new_dsn($opts{h} || 'localhost', $params[0], 'test.innotop_dl',
+ $opts{u} ? 1 : 0, $opts{u}, $opts{p} ? 1 : 0, $opts{p});
+ }
+ if ($opts{c}) {
+ $conf_file = $opts{c};
+ }
+ # If we don't have a new config file but we do have an old one,
+ # innotop got upgraded and this is an old config file. Convert it, but
+ # don't overwrite something existing.
+ elsif ( ! -f $default_home_conf && ( -f "$homepath/.innotop" or -f "$homepath/.innotop/innotop.ini" ) ) {
+ $conf_file = $default_home_conf;
+ if ( -f "$homepath/.innotop") {
+ $old_filename = "$homepath/.innotop";
+ }
+ elsif ( -f "$homepath/.innotop/innotop.ini" ) {
+ $old_filename = "$homepath/.innotop/innotop.ini";
+ }
+ $answer = pause("Innotop's default config location has moved to '$conf_file'. Move old config file '$old_filename' there now? y/n");
+ if ( lc $answer eq 'y' ) {
+ migrate_config($old_filename, $conf_file);
+ }
+ else {
+ print "\nInnotop will now exit so you can fix the config file.\n";
+ exit(0);
+ }
+ }
+ elsif ( -f $default_home_conf ) {
+ $conf_file = $default_home_conf;
+ }
+ elsif ( -f $default_central_conf and not $opts{s} ) {
+ $conf_file = $default_central_conf;
+ }
+ else {
+ # If no config file was loaded, set readonly to 0 if the user wants to
+ # write a config
+ $config{readonly}->{val} = 0 if $opts{w};
+ # If no connections have been defined, connect to a MySQL database
+ # on localhost using mysql_read_default_group=client
+ if (!%connections) {
+ add_new_dsn('localhost',
+ 'DBI:mysql:;host=localhost;mysql_read_default_group=client',
+ 'test.innotop_dl');
+ }
+ }
+
+ if ( -f "$conf_file" ) {
+ open my $file, "<", $conf_file or die("Can't open '$conf_file': $OS_ERROR");
+
+ # Check config file version. Just ignore if either innotop or the file has
+ # garbage in the version number.
+ if ( defined(my $line = <$file>) && $VERSION =~ m/\d/ ) {
+ chomp $line;
+ if ( my ($maj, $min, $rev) = $line =~ m/^version=(\d+)\.(\d+)(?:\.(\d+))?$/ ) {
+ $rev ||= 0;
+ my $cfg_ver = sprintf('%03d-%03d-%03d', $maj, $min, $rev);
+ ( $maj, $min, $rev ) = $VERSION =~ m/^(\d+)\.(\d+)(?:\.(\d+))?$/;
+ $rev ||= 0;
+ my $innotop_ver = sprintf('%03d-%03d-%03d', $maj, $min, $rev);
+
+ if ( $cfg_ver gt $innotop_ver ) {
+ pause("The config file is for a newer version of innotop and may not be read correctly.");
+ }
+ else {
+ my @ver_history = @config_versions;
+ while ( my ($start, $end) = splice(@ver_history, 0, 2) ) {
+ # If the config file is between the endpoints and innotop is greater than
+ # the endpoint, innotop has a newer config file format than the file.
+ if ( $cfg_ver ge $start && $cfg_ver lt $end && $innotop_ver ge $end ) {
+ my $msg = "innotop's config file format has changed. Overwrite $conf_file? y or n";
+ if ( pause($msg) eq 'n' ) {
+ $config{readonly}->{val} = 1;
+ print "\ninnotop will not save any configuration changes you make.";
+ pause();
+ print "\n";
+ }
+ close $file;
+ return;
+ }
+ }
+ }
+ }
+ }
+
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next unless $line =~ m/^\[([a-z_]+)\]$/;
+ if ( exists $config_file_sections{$1} ) {
+ $config_file_sections{$1}->{reader}->($file);
+ }
+ else {
+ warn "Unknown config file section '$1'";
+ }
+ }
+ close $file or die("Can't close $conf_file: $OS_ERROR");
+ }
+
+}
+
+# Do some post-processing on %tbl_meta: compile src properties into func etc.
+sub post_process_tbl_meta {
+ foreach my $table ( values %tbl_meta ) {
+ foreach my $col_name ( keys %{$table->{cols}} ) {
+ my $col_def = $table->{cols}->{$col_name};
+ my ( $sub, $err ) = compile_expr($col_def->{src});
+ $col_def->{func} = $sub;
+ }
+ }
+}
+
+# load_config_plugins {{{3
+sub load_config_plugins {
+ my ( $file ) = @_;
+
+ # First, find a list of all plugins that exist on disk, and get information about them.
+ my $dir = $config{plugin_dir}->{val};
+ foreach my $p_file ( <$dir/*.pm> ) {
+ my ($package, $desc);
+ eval {
+ open my $p_in, "<", $p_file or die $OS_ERROR;
+ while ( my $line = <$p_in> ) {
+ chomp $line;
+ if ( $line =~ m/^package\s+(.*?);/ ) {
+ $package = $1;
+ }
+ elsif ( $line =~ m/^# description: (.*)/ ) {
+ $desc = $1;
+ }
+ last if $package && $desc;
+ }
+ close $p_in;
+ };
+ if ( $package ) {
+ $plugins{$package} = {
+ file => $p_file,
+ desc => $desc,
+ class => $package,
+ active => 0,
+ };
+ if ( $config{debug}->{val} && $EVAL_ERROR ) {
+ die $EVAL_ERROR;
+ }
+ }
+ }
+
+ # Now read which ones the user has activated. Each line simply represents an active plugin.
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+ next unless $line && $plugins{$line};
+
+ my $obj;
+ eval {
+ require $plugins{$line}->{file};
+ $obj = $line->new(%pluggable_vars);
+ foreach my $event ( $obj->register_for_events() ) {
+ my $queue = $event_listener_for{$event};
+ if ( $queue ) {
+ push @$queue, $obj;
+ }
+ }
+ };
+ if ( $config{debug}->{val} && $EVAL_ERROR ) {
+ die $EVAL_ERROR;
+ }
+ if ( $obj ) {
+ $plugins{$line}->{active} = 1;
+ $plugins{$line}->{object} = $obj;
+ }
+ }
+}
+
+# save_config_plugins {{{3
+sub save_config_plugins {
+ my $file = shift;
+ foreach my $class ( sort keys %plugins ) {
+ next unless $plugins{$class}->{active};
+ print $file "$class\n";
+ }
+}
+
+# load_config_active_server_groups {{{3
+sub load_config_active_server_groups {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $mode, $group ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $mode && $group
+ && exists $modes{$mode} && exists $server_groups{$group};
+ $modes{$mode}->{server_group} = $group;
+ }
+}
+
+# save_config_active_server_groups {{{3
+sub save_config_active_server_groups {
+ my $file = shift;
+ foreach my $mode ( sort keys %modes ) {
+ print $file "$mode=$modes{$mode}->{server_group}\n";
+ }
+}
+
+# load_config_server_groups {{{3
+sub load_config_server_groups {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $name, $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $name && $rest;
+ my @vars = unique(grep { $_ && exists $connections{$_} } split(/\s+/, $rest));
+ next unless @vars;
+ $server_groups{$name} = \@vars;
+ }
+}
+
+# save_config_server_groups {{{3
+sub save_config_server_groups {
+ my $file = shift;
+ foreach my $set ( sort keys %server_groups ) {
+ print $file "$set=", join(' ', @{$server_groups{$set}}), "\n";
+ }
+}
+
+# load_config_varsets {{{3
+sub load_config_varsets {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $name, $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $name && $rest;
+ $var_sets{$name} = {
+ text => $rest,
+ user => 1,
+ };
+ }
+}
+
+# save_config_varsets {{{3
+sub save_config_varsets {
+ my $file = shift;
+ foreach my $varset ( sort keys %var_sets ) {
+ next unless $var_sets{$varset}->{user};
+ print $file "$varset=$var_sets{$varset}->{text}\n";
+ }
+}
+
+# load_config_group_by {{{3
+sub load_config_group_by {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $tbl , $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $tbl && exists $tbl_meta{$tbl};
+ my @parts = unique(grep { exists($tbl_meta{$tbl}->{cols}->{$_}) } split(/\s+/, $rest));
+ $tbl_meta{$tbl}->{group_by} = [ @parts ];
+ $tbl_meta{$tbl}->{cust}->{group_by} = 1;
+ }
+}
+
+# save_config_group_by {{{3
+sub save_config_group_by {
+ my $file = shift;
+ foreach my $tbl ( sort keys %tbl_meta ) {
+ next if $tbl_meta{$tbl}->{temp};
+ next unless $tbl_meta{$tbl}->{cust}->{group_by};
+ my $aref = $tbl_meta{$tbl}->{group_by};
+ print $file "$tbl=", join(' ', @$aref), "\n";
+ }
+}
+
+# load_config_filters {{{3
+sub load_config_filters {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $key, $rest ) = $line =~ m/^(.+?)=(.*)$/;
+ next unless $key && $rest;
+
+ my %parts = $rest =~ m/(\w+)='((?:(?!(?<!\\)').)*)'/g; # Properties are single-quoted
+ next unless $parts{text} && $parts{tbls};
+
+ foreach my $prop ( keys %parts ) {
+ # Un-escape escaping
+ $parts{$prop} =~ s/\\\\/\\/g;
+ $parts{$prop} =~ s/\\'/'/g;
+ }
+
+ my ( $sub, $err ) = compile_filter($parts{text});
+ my @tbls = unique(split(/\s+/, $parts{tbls}));
+ @tbls = grep { exists $tbl_meta{$_} } @tbls;
+ $filters{$key} = {
+ func => $sub,
+ text => $parts{text},
+ user => 1,
+ name => $key,
+ note => 'User-defined filter',
+ tbls => \@tbls,
+ }
+ }
+}
+
+# save_config_filters {{{3
+sub save_config_filters {
+ my $file = shift;
+ foreach my $key ( sort keys %filters ) {
+ next if !$filters{$key}->{user} || $filters{$key}->{quick};
+ my $text = $filters{$key}->{text};
+ $text =~ s/([\\'])/\\$1/g;
+ my $tbls = join(" ", @{$filters{$key}->{tbls}});
+ print $file "$key=text='$text' tbls='$tbls'\n";
+ }
+}
+
+# load_config_visible_tables {{{3
+sub load_config_visible_tables {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $mode, $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $mode && exists $modes{$mode};
+ $modes{$mode}->{visible_tables} =
+ [ unique(grep { $_ && exists $tbl_meta{$_} } split(/\s+/, $rest)) ];
+ $modes{$mode}->{cust}->{visible_tables} = 1;
+ }
+}
+
+# save_config_visible_tables {{{3
+sub save_config_visible_tables {
+ my $file = shift;
+ foreach my $mode ( sort keys %modes ) {
+ next unless $modes{$mode}->{cust}->{visible_tables};
+ my $tables = $modes{$mode}->{visible_tables};
+ print $file "$mode=", join(' ', @$tables), "\n";
+ }
+}
+
+# load_config_sort_cols {{{3
+sub load_config_sort_cols {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $key , $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $key && exists $tbl_meta{$key};
+ $tbl_meta{$key}->{sort_cols} = $rest;
+ $tbl_meta{$key}->{cust}->{sort_cols} = 1;
+ $tbl_meta{$key}->{sort_func} = make_sort_func($tbl_meta{$key});
+ }
+}
+
+# save_config_sort_cols {{{3
+sub save_config_sort_cols {
+ my $file = shift;
+ foreach my $tbl ( sort keys %tbl_meta ) {
+ next unless $tbl_meta{$tbl}->{cust}->{sort_cols};
+ my $col = $tbl_meta{$tbl}->{sort_cols};
+ print $file "$tbl=$col\n";
+ }
+}
+
+# load_config_active_filters {{{3
+sub load_config_active_filters {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $tbl , $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $tbl && exists $tbl_meta{$tbl};
+ my @parts = unique(grep { exists($filters{$_}) } split(/\s+/, $rest));
+ @parts = grep { grep { $tbl eq $_ } @{$filters{$_}->{tbls}} } @parts;
+ $tbl_meta{$tbl}->{filters} = [ @parts ];
+ $tbl_meta{$tbl}->{cust}->{filters} = 1;
+ }
+}
+
+# save_config_active_filters {{{3
+sub save_config_active_filters {
+ my $file = shift;
+ foreach my $tbl ( sort keys %tbl_meta ) {
+ next if $tbl_meta{$tbl}->{temp};
+ next unless $tbl_meta{$tbl}->{cust}->{filters};
+ my $aref = $tbl_meta{$tbl}->{filters};
+ print $file "$tbl=", join(' ', @$aref), "\n";
+ }
+}
+
+# load_config_active_columns {{{3
+sub load_config_active_columns {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $key , $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $key && exists $tbl_meta{$key};
+ my @parts = grep { exists($tbl_meta{$key}->{cols}->{$_}) } unique split(/ /, $rest);
+ $tbl_meta{$key}->{visible} = [ @parts ];
+ $tbl_meta{$key}->{cust}->{visible} = 1;
+ }
+}
+
+# save_config_active_columns {{{3
+sub save_config_active_columns {
+ my $file = shift;
+ foreach my $tbl ( sort keys %tbl_meta ) {
+ next unless $tbl_meta{$tbl}->{cust}->{visible};
+ my $aref = $tbl_meta{$tbl}->{visible};
+ print $file "$tbl=", join(' ', @$aref), "\n";
+ }
+}
+
+# save_config_tbl_meta {{{3
+sub save_config_tbl_meta {
+ my $file = shift;
+ foreach my $tbl ( sort keys %tbl_meta ) {
+ foreach my $col ( keys %{$tbl_meta{$tbl}->{cols}} ) {
+ my $meta = $tbl_meta{$tbl}->{cols}->{$col};
+ next unless $meta->{user};
+ print $file "$col=", join(
+ " ",
+ map {
+ # Some properties (trans) are arrays, others scalars
+ my $val = ref($meta->{$_}) ? join(',', @{$meta->{$_}}) : $meta->{$_};
+ $val =~ s/([\\'])/\\$1/g; # Escape backslashes and single quotes
+ "$_='$val'"; # Enclose in single quotes
+ }
+ grep { $_ ne 'func' }
+ keys %$meta
+ ), "\n";
+ }
+ }
+}
+
+# save_config_config {{{3
+sub save_config_config {
+ my $file = shift;
+ foreach my $key ( sort keys %config ) {
+ eval {
+ if ( $key ne 'password' || $config{savepass}->{val} ) {
+ print $file "# $config{$key}->{note}\n"
+ or die "Cannot print to file: $OS_ERROR";
+ my $val = $config{$key}->{val};
+ $val = '' unless defined($val);
+ if ( ref( $val ) eq 'ARRAY' ) {
+ print $file "$key="
+ . join( " ", @$val ) . "\n"
+ or die "Cannot print to file: $OS_ERROR";
+ }
+ elsif ( ref( $val ) eq 'HASH' ) {
+ print $file "$key="
+ . join( " ",
+ map { "$_:$val->{$_}" } keys %$val
+ ) . "\n";
+ }
+ else {
+ print $file "$key=$val\n";
+ }
+ }
+ };
+ if ( $EVAL_ERROR ) { print "$EVAL_ERROR in $key"; };
+ }
+
+}
+
+# load_config_config {{{3
+sub load_config_config {
+ my ( $file ) = @_;
+
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $name, $val ) = $line =~ m/^(.+?)=(.*)$/;
+ next unless defined $name && defined $val;
+
+ # Validate the incoming values...
+ if ( $name && exists( $config{$name} ) ) {
+ if ( !$config{$name}->{pat} || $val =~ m/$config{$name}->{pat}/ ) {
+ $config{$name}->{val} = $val;
+ $config{$name}->{read} = 1;
+ }
+ }
+ }
+}
+
+# load_config_tbl_meta {{{3
+sub load_config_tbl_meta {
+ my ( $file ) = @_;
+
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ # Each tbl_meta section has all the properties defined in %col_props.
+ my ( $col , $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $col;
+ my %parts = $rest =~ m/(\w+)='((?:(?!(?<!\\)').)*)'/g; # Properties are single-quoted
+
+ # Each section read from the config file has one extra property: which table it
+ # goes in.
+ my $tbl = $parts{tbl} or die "There's no table for tbl_meta $col";
+ my $meta = $tbl_meta{$tbl} or die "There's no table in tbl_meta named $tbl";
+
+ # The section is user-defined by definition (if that makes sense).
+ $parts{user} = 1;
+
+ # The column may already exist in the table, in which case this is just a
+ # customization.
+ $meta->{cols}->{$col} ||= {};
+
+ foreach my $prop ( keys %col_props ) {
+ if ( !defined($parts{$prop}) ) {
+ # Make it default to whatever's in col_props.
+ $parts{$prop} = $col_props{$prop};
+ }
+
+ # Un-escape escaping
+ $parts{$prop} =~ s/\\\\/\\/g;
+ $parts{$prop} =~ s/\\'/'/g;
+
+ if ( ref $col_props{$prop} ) {
+ if ( $prop eq 'trans' ) {
+ $meta->{cols}->{$col}->{trans}
+ = [ unique(grep { exists $trans_funcs{$_} } split(',', $parts{$prop})) ];
+ }
+ else {
+ $meta->{cols}->{$col}->{$prop} = [ split(',', $parts{$prop}) ];
+ }
+ }
+ else {
+ $meta->{cols}->{$col}->{$prop} = $parts{$prop};
+ }
+ }
+
+ }
+}
+
+# save_config {{{3
+sub save_config {
+ print "\n";
+ return if $config{readonly}->{val};
+ # return if no config file was loaded and -w wasn't specified
+ if (not $conf_file) {
+ if (not $opts{w}) {
+ return;
+ }
+ else {
+ # if no config was loaded but -w was specified,
+ # write to $default_home_conf
+ $conf_file = $default_home_conf;
+ }
+ }
+ elsif ($conf_file and $opts{w}) {
+ print "Loaded config file on start-up, so ignoring -w (see --help)\n"
+ }
+
+ my $dirname = dirname($conf_file);
+
+ # if directories don't exist, create them. This could cause errors
+ # or warnings if a central config doesn't have readonly=1, but being
+ # flexible requires giving the user enough rope to hang themselves with.
+ if ( ! -d $dirname ) {
+ mkdir $dirname
+ or die "Can't create directory '$dirname': $OS_ERROR";
+ }
+ if ( ! -d "$dirname/plugins" ) {
+ mkdir "$dirname/plugins"
+ or warn "Can't create directory '$dirname/plugins': $OS_ERROR\n";
+ }
+
+ # Save to a temp file first, so a crash doesn't destroy the main config file
+ my $tmpfile = File::Temp->new( TEMPLATE => 'innotopXXXXX', DIR => $dirname, SUFFIX => '.conf.tmp');
+ open my $file, "+>", $tmpfile
+ or die("Can't write to $tmpfile: $OS_ERROR");
+ print $file "version=$VERSION\n";
+
+ foreach my $section ( @ordered_config_file_sections ) {
+ die "No such config file section $section" unless $config_file_sections{$section};
+ print $file "\n[$section]\n\n";
+ $config_file_sections{$section}->{writer}->($file);
+ print $file "\n[/$section]\n";
+ }
+
+ # Now clobber the main config file with the temp.
+ close $file or die("Can't close $tmpfile: $OS_ERROR");
+ rename($tmpfile, $conf_file) or die("Can't rename $tmpfile to $conf_file: $OS_ERROR");
+}
+
+# load_config_connections {{{3
+sub load_config_connections {
+ return if $opts{u} or $opts{p} or $opts{h} or $opts{P}; # don't load connections if DSN or user/pass options used
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $key , $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $key;
+ my %parts = $rest =~ m/(\S+?)=(\S*)/g;
+ my %conn = map { $_ => $parts{$_} || '' } @conn_parts;
+ $connections{$key} = \%conn;
+ }
+}
+
+# save_config_connections {{{3
+sub save_config_connections {
+ my $file = shift;
+ foreach my $conn ( sort keys %connections ) {
+ my $href = $connections{$conn};
+ my @keys = $href->{savepass} ? @conn_parts : grep { $_ ne 'pass' } @conn_parts;
+ print $file "$conn=", join(' ', map { "$_=$href->{$_}" } grep { defined $href->{$_} } @keys), "\n";
+ }
+}
+
+sub load_config_colors {
+ my ( $file ) = @_;
+ my %rule_set_for;
+
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $tbl, $rule ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $tbl && $rule;
+ next unless exists $tbl_meta{$tbl};
+ my %parts = $rule =~ m/(\w+)='((?:(?!(?<!\\)').)*)'/g; # Properties are single-quoted
+ next unless $parts{col} && exists $tbl_meta{$tbl}->{cols}->{$parts{col}};
+ next unless $parts{op} && exists $comp_ops{$parts{op}};
+ next unless defined $parts{arg};
+ next unless defined $parts{color};
+ my @colors = unique(grep { exists $ansicolors{$_} } split(/\W+/, $parts{color}));
+ next unless @colors;
+
+ # Finally! Enough validation...
+ $rule_set_for{$tbl} ||= [];
+ push @{$rule_set_for{$tbl}}, \%parts;
+ }
+
+ foreach my $tbl ( keys %rule_set_for ) {
+ $tbl_meta{$tbl}->{colors} = $rule_set_for{$tbl};
+ $tbl_meta{$tbl}->{color_func} = make_color_func($tbl_meta{$tbl});
+ $tbl_meta{$tbl}->{cust}->{colors} = 1;
+ }
+}
+
+# save_config_colors {{{3
+sub save_config_colors {
+ my $file = shift;
+ foreach my $tbl ( sort keys %tbl_meta ) {
+ my $meta = $tbl_meta{$tbl};
+ next unless $meta->{cust}->{colors};
+ foreach my $rule ( @{$meta->{colors}} ) {
+ print $file "$tbl=", join(
+ ' ',
+ map {
+ my $val = $rule->{$_};
+ $val =~ s/([\\'])/\\$1/g; # Escape backslashes and single quotes
+ "$_='$val'"; # Enclose in single quotes
+ }
+ qw(col op arg color)
+ ), "\n";
+ }
+ }
+}
+
+# load_config_active_connections {{{3
+sub load_config_active_connections {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $key , $rest ) = $line =~ m/^(.*?)=(.*)$/;
+ next unless $key && exists $modes{$key};
+ my @parts = grep { exists $connections{$_} } split(/ /, $rest);
+ $modes{$key}->{connections} = [ @parts ] if exists $modes{$key};
+ }
+}
+
+# save_config_active_connections {{{3
+sub save_config_active_connections {
+ my $file = shift;
+ foreach my $mode ( sort keys %modes ) {
+ my @connections = get_connections($mode);
+ print $file "$mode=", join(' ', @connections), "\n";
+ }
+}
+
+# load_config_stmt_sleep_times {{{3
+sub load_config_stmt_sleep_times {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $key , $val ) = split('=', $line);
+ next unless $key && defined $val && $val =~ m/$num_regex/;
+ $stmt_sleep_time_for{$key} = $val;
+ }
+}
+
+# save_config_stmt_sleep_times {{{3
+sub save_config_stmt_sleep_times {
+ my $file = shift;
+ foreach my $key ( sort keys %stmt_sleep_time_for ) {
+ print $file "$key=$stmt_sleep_time_for{$key}\n";
+ }
+}
+
+# load_config_mvs {{{3
+sub load_config_mvs {
+ my ( $file ) = @_;
+ while ( my $line = <$file> ) {
+ chomp $line;
+ next if $line =~ m/^#/;
+ last if $line =~ m/^\[/;
+
+ my ( $key , $val ) = split('=', $line);
+ next unless $key && defined $val && $val =~ m/$num_regex/;
+ $mvs{$key} = $val;
+ }
+}
+
+# save_config_mvs {{{3
+sub save_config_mvs {
+ my $file = shift;
+ foreach my $key ( sort keys %mvs ) {
+ print $file "$key=$mvs{$key}\n";
+ }
+}
+
+# edit_configuration {{{3
+sub edit_configuration {
+ my $key = '';
+ while ( $key ne 'q' ) {
+ $clear_screen_sub->();
+ my @display_lines = '';
+
+ if ( $key && $cfg_editor_action{$key} ) {
+ $cfg_editor_action{$key}->{func}->();
+ }
+
+ # Show help
+ push @display_lines, create_caption('What configuration do you want to edit?',
+ create_table2(
+ [ sort keys %cfg_editor_action ],
+ { map { $_ => $_ } keys %cfg_editor_action },
+ { map { $_ => $cfg_editor_action{$_}->{note} } keys %cfg_editor_action },
+ { sep => ' ' }));
+
+ draw_screen(\@display_lines);
+ $key = pause('');
+ }
+}
+
+# edit_configuration_variables {{{3
+sub edit_configuration_variables {
+ $clear_screen_sub->();
+ my $mode = $config{mode}->{val};
+
+ my %config_choices
+ = map { $_ => $config{$_}->{note} || '' }
+ # Only config values that are marked as applying to this mode.
+ grep {
+ my $key = $_;
+ $config{$key}->{conf} &&
+ ( $config{$key}->{conf} eq 'ALL'
+ || grep { $mode eq $_ } @{$config{$key}->{conf}} )
+ } keys %config;
+
+ my $key = prompt_list(
+ "Enter the name of the variable you wish to configure",
+ '',
+ sub{ return keys %config_choices },
+ \%config_choices);
+
+ if ( exists($config_choices{$key}) ) {
+ get_config_interactive($key);
+ }
+}
+
+# edit_color_rules {{{3
+sub edit_color_rules {
+ my ( $tbl ) = @_;
+ $clear_screen_sub->();
+ $tbl ||= choose_visible_table();
+ if ( $tbl && exists($tbl_meta{$tbl}) ) {
+ my $meta = $tbl_meta{$tbl};
+ my @cols = ('', qw(col op arg color));
+ my $info = { map { $_ => { hdr => $_, just => '-', } } @cols };
+ $info->{label}->{maxw} = 30;
+ my $key;
+ my $selected_rule;
+
+ # This loop builds a tabular view of the rules.
+ do {
+
+ # Show help
+ if ( $key && $key eq '?' ) {
+ my @display_lines = '';
+ push @display_lines, create_caption('Editor key mappings',
+ create_table2(
+ [ sort keys %color_editor_action ],
+ { map { $_ => $_ } keys %color_editor_action },
+ { map { $_ => $color_editor_action{$_}->{note} } keys %color_editor_action },
+ { sep => ' ' }));
+ draw_screen(\@display_lines);
+ pause();
+ $key = '';
+ }
+ else {
+
+ # Do the action specified
+ $selected_rule ||= 0;
+ if ( $key && $color_editor_action{$key} ) {
+ $selected_rule = $color_editor_action{$key}->{func}->($tbl, $selected_rule);
+ $selected_rule ||= 0;
+ }
+
+ # Build the table of rules. If the terminal has color, the selected rule
+ # will be highlighted; otherwise a > at the left will indicate.
+ my $data = $meta->{colors} || [];
+ foreach my $i ( 0..@$data - 1 ) {
+ $data->[$i]->{''} = $i == $selected_rule ? '>' : '';
+ }
+ my @display_lines = create_table(\@cols, $info, $data);
+
+ # Highlight selected entry
+ for my $i ( 0 .. $#display_lines ) {
+ if ( $display_lines[$i] =~ m/^>/ ) {
+ $display_lines[$i] = [ $display_lines[$i], 'reverse' ];
+ }
+ }
+
+ # Draw the screen and wait for a command.
+ unshift @display_lines, '',
+ "Editing color rules for $meta->{capt}. Press ? for help, q to "
+ . "quit.", '';
+ draw_screen(\@display_lines);
+ print "\n\n", word_wrap('Rules are applied in order from top to '
+ . 'bottom. The first matching rule wins and prevents the '
+ . 'rest of the rules from being applied.');
+ $key = pause('');
+ }
+ } while ( $key ne 'q' );
+ $meta->{color_func} = make_color_func($meta);
+ }
+}
+
+# add_quick_filter {{{3
+sub add_quick_filter {
+ my $tbl = choose_visible_table();
+ if ( $tbl && exists($tbl_meta{$tbl}) ) {
+ print "\n";
+ my $response = prompt_list(
+ "Enter column name and filter text",
+ '',
+ sub { return keys %{$tbl_meta{$tbl}->{cols}} },
+ ()
+ );
+ my ( $col, $text ) = split(/\s+/, $response, 2);
+
+ # You can't filter on a nonexistent column. But if you filter on a pivoted
+ # table, the columns are different, so on a pivoted table, allow filtering
+ # on the 'name' column.
+ # NOTE: if a table is pivoted and un-pivoted, this will likely cause crashes.
+ # Currently not an issue since there's no way to toggle pivot/nopivot.
+ return unless $col && $text &&
+ (exists($tbl_meta{$tbl}->{cols}->{$col})
+ || ($tbl_meta{$tbl}->{pivot} && $col eq 'name'));
+
+ my ( $sub, $err ) = compile_filter( "defined \$set->{$col} && \$set->{$col} =~ m/$text/" );
+ return if !$sub || $err;
+ my $name = "quick_$tbl.$col";
+ $filters{$name} = {
+ func => $sub,
+ text => $text,
+ user => 1,
+ quick => 1,
+ name => $name,
+ note => 'Quick-filter',
+ tbls => [$tbl],
+ };
+ push @{$tbl_meta{$tbl}->{filters}}, $name;
+ }
+}
+
+# clear_quick_filters {{{3
+sub clear_quick_filters {
+ my $tbl = choose_visible_table(
+ # Only tables that have quick-filters
+ sub {
+ my ( $tbl ) = @_;
+ return scalar grep { $filters{$_}->{quick} } @{ $tbl_meta{$tbl}->{filters} };
+ }
+ );
+ if ( $tbl && exists($tbl_meta{$tbl}) ) {
+ my @current = @{$tbl_meta{$tbl}->{filters}};
+ @current = grep { !$filters{$_}->{quick} } @current;
+ $tbl_meta{$tbl}->{filters} = \@current;
+ }
+}
+
+sub edit_plugins {
+ $clear_screen_sub->();
+
+ my @cols = ('', qw(class desc active));
+ my $info = { map { $_ => { hdr => $_, just => '-', } } @cols };
+ my @rows = map { $plugins{$_} } sort keys %plugins;
+ my $key;
+ my $selected;
+
+ # This loop builds a tabular view of the plugins.
+ do {
+
+ # Show help
+ if ( $key && $key eq '?' ) {
+ my @display_lines = '';
+ push @display_lines, create_caption('Editor key mappings',
+ create_table2(
+ [ sort keys %plugin_editor_action ],
+ { map { $_ => $_ } keys %plugin_editor_action },
+ { map { $_ => $plugin_editor_action{$_}->{note} } keys %plugin_editor_action },
+ { sep => ' ' }));
+ draw_screen(\@display_lines);
+ pause();
+ $key = '';
+ }
+
+ # Do the action specified
+ else {
+ $selected ||= 0;
+ if ( $key && $plugin_editor_action{$key} ) {
+ $selected = $plugin_editor_action{$key}->{func}->(\@rows, $selected);
+ $selected ||= 0;
+ }
+
+ # Build the table of plugins.
+ foreach my $row ( 0.. $#rows ) {
+ $rows[$row]->{''} = $row eq $selected ? '>' : ' ';
+ }
+ my @display_lines = create_table(\@cols, $info, \@rows);
+
+ # Highlight selected entry
+ for my $i ( 0 .. $#display_lines ) {
+ if ( $display_lines[$i] =~ m/^>/ ) {
+ $display_lines[$i] = [ $display_lines[$i], 'reverse' ];
+ }
+ }
+
+ # Draw the screen and wait for a command.
+ unshift @display_lines, '',
+ "Plugin Management. Press ? for help, q to quit.", '';
+ draw_screen(\@display_lines);
+ $key = pause('');
+ }
+ } while ( $key ne 'q' );
+}
+
+# edit_table {{{3
+sub edit_table {
+ $clear_screen_sub->();
+ my ( $tbl ) = @_;
+ $tbl ||= choose_visible_table();
+ if ( $tbl && exists($tbl_meta{$tbl}) ) {
+ my $meta = $tbl_meta{$tbl};
+ my @cols = ('', qw(name hdr label src));
+ my $info = { map { $_ => { hdr => $_, just => '-', } } @cols };
+ $info->{label}->{maxw} = 30;
+ my $key;
+ my $selected_column;
+
+ # This loop builds a tabular view of the tbl_meta's structure, showing each column
+ # in the entry as a row.
+ do {
+
+ # Show help
+ if ( $key && $key eq '?' ) {
+ my @display_lines = '';
+ push @display_lines, create_caption('Editor key mappings',
+ create_table2(
+ [ sort keys %tbl_editor_action ],
+ { map { $_ => $_ } keys %tbl_editor_action },
+ { map { $_ => $tbl_editor_action{$_}->{note} } keys %tbl_editor_action },
+ { sep => ' ' }));
+ draw_screen(\@display_lines);
+ pause();
+ $key = '';
+ }
+ else {
+
+ # Do the action specified
+ $selected_column ||= $meta->{visible}->[0];
+ if ( $key && $tbl_editor_action{$key} ) {
+ $selected_column = $tbl_editor_action{$key}->{func}->($tbl, $selected_column);
+ $selected_column ||= $meta->{visible}->[0];
+ }
+
+ # Build the pivoted view of the table's meta-data. If the terminal has color,
+ # The selected row will be highlighted; otherwise a > at the left will indicate.
+ my $data = [];
+ foreach my $row ( @{$meta->{visible}} ) {
+ my %hash;
+ @hash{ @cols } = @{$meta->{cols}->{$row}}{@cols};
+ $hash{src} = '' if ref $hash{src};
+ $hash{name} = $row;
+ $hash{''} = $row eq $selected_column ? '>' : ' ';
+ push @$data, \%hash;
+ }
+ my @display_lines = create_table(\@cols, $info, $data);
+
+ # Highlight selected entry
+ for my $i ( 0 .. $#display_lines ) {
+ if ( $display_lines[$i] =~ m/^>/ ) {
+ $display_lines[$i] = [ $display_lines[$i], 'reverse' ];
+ }
+ }
+
+ # Draw the screen and wait for a command.
+ unshift @display_lines, '',
+ "Editing table definition for $meta->{capt}. Press ? for help, q to quit.", '';
+ draw_screen(\@display_lines, { clear => 1 });
+ $key = pause('');
+ }
+ } while ( $key ne 'q' );
+ }
+}
+
+# choose_mode_tables {{{3
+# Choose which table(s), and in what order, to display in a given mode.
+sub choose_mode_tables {
+ my $mode = $config{mode}->{val};
+ my @tbls = @{$modes{$mode}->{visible_tables}};
+ my $new = prompt_list(
+ "Choose tables to display",
+ join(' ', @tbls),
+ sub { return @{$modes{$mode}->{tables}} },
+ { map { $_ => $tbl_meta{$_}->{capt} } @{$modes{$mode}->{tables}} }
+ );
+ $modes{$mode}->{visible_tables} =
+ [ unique(grep { $_ && exists $tbl_meta{$_} } split(/\s+/, $new)) ];
+ $modes{$mode}->{cust}->{visible_tables} = 1;
+}
+
+# set_visible_table {{{3
+sub set_visible_table {
+ my ( $tbl ) = @_;
+ my $mode = $config{mode}->{val};
+ my @tbls = grep { $_ eq $tbl } @{$modes{$mode}->{tables}};
+ if ( @tbls == 1 ) {
+ $modes{$mode}->{visible_tables} = [ $tbl ];
+ $modes{$mode}->{cust}->{visible_tables} = 1;
+ }
+}
+
+# choose_visible_table {{{3
+sub choose_visible_table {
+ my ( $grep_cond ) = @_;
+ my $mode = $config{mode}->{val};
+ my @tbls
+ = grep { $grep_cond ? $grep_cond->($_) : 1 }
+ @{$modes{$mode}->{visible_tables}};
+ my $tbl = $tbls[0];
+ if ( @tbls > 1 ) {
+ $tbl = prompt_list(
+ "Choose a table",
+ '',
+ sub { return @tbls },
+ { map { $_ => $tbl_meta{$_}->{capt} } @tbls }
+ );
+ }
+ return $tbl;
+}
+
+sub toggle_aggregate {
+ my ( $tbl ) = @_;
+ $tbl ||= choose_visible_table();
+ return unless $tbl && exists $tbl_meta{$tbl};
+ my $meta = $tbl_meta{$tbl};
+ $meta->{aggregate} ^= 1;
+}
+
+sub choose_filters {
+ my ( $tbl ) = @_;
+ $tbl ||= choose_visible_table();
+ return unless $tbl && exists $tbl_meta{$tbl};
+ my $meta = $tbl_meta{$tbl};
+ $clear_screen_sub->();
+
+ print "Choose filters for $meta->{capt}:\n";
+
+ my $ini = join(' ', @{$meta->{filters}});
+ my $val = prompt_list(
+ 'Choose filters',
+ $ini,
+ sub { return keys %filters },
+ {
+ map { $_ => $filters{$_}->{note} }
+ grep { grep { $tbl eq $_ } @{$filters{$_}->{tbls}} }
+ keys %filters
+ }
+ );
+
+ my @choices = unique($val =~ m/(\S+)/g);
+ foreach my $new ( grep { !exists($filters{$_}) } @choices ) {
+ my $answer = prompt("There is no filter called '$new'. Create it?", undef, 'y');
+ if ( $answer eq 'y' ) {
+ create_new_filter($new, $tbl);
+ }
+ }
+ @choices = grep { exists $filters{$_} } @choices;
+ @choices = grep { grep { $tbl eq $_ } @{$filters{$_}->{tbls}} } @choices;
+ $meta->{filters} = [ @choices ];
+ $meta->{cust}->{filters} = 1;
+}
+
+sub choose_group_cols {
+ my ( $tbl ) = @_;
+ $tbl ||= choose_visible_table();
+ return unless $tbl && exists $tbl_meta{$tbl};
+ $clear_screen_sub->();
+ my $meta = $tbl_meta{$tbl};
+ my $curr = join(', ', @{$meta->{group_by}});
+ my $val = prompt_list(
+ 'Group-by columns',
+ $curr,
+ sub { return keys %{$meta->{cols}} },
+ { map { $_ => $meta->{cols}->{$_}->{label} } keys %{$meta->{cols}} });
+ if ( $curr ne $val ) {
+ $meta->{group_by} = [ grep { exists $meta->{cols}->{$_} } $val =~ m/(\w+)/g ];
+ $meta->{cust}->{group_by} = 1;
+ }
+}
+
+sub choose_sort_cols {
+ my ( $tbl ) = @_;
+ $tbl ||= choose_visible_table();
+ return unless $tbl && exists $tbl_meta{$tbl};
+ $clear_screen_sub->();
+ my $meta = $tbl_meta{$tbl};
+
+ my ( $cols, $hints );
+ if ( $meta->{pivot} ) {
+ $cols = sub { qw(name set_0) };
+ $hints = { name => 'name', set_0 => 'set_0' };
+ }
+ else {
+ $cols = sub { return keys %{$meta->{cols}} };
+ $hints = { map { $_ => $meta->{cols}->{$_}->{label} } keys %{$meta->{cols}} };
+ }
+
+ my $val = prompt_list(
+ 'Sort columns (reverse sort with -col)',
+ $meta->{sort_cols},
+ $cols,
+ $hints );
+ if ( $meta->{sort_cols} ne $val ) {
+ $meta->{sort_cols} = $val;
+ $meta->{cust}->{sort_cols} = 1;
+ $tbl_meta{$tbl}->{sort_func} = make_sort_func($tbl_meta{$tbl});
+ }
+}
+
+# create_new_filter {{{3
+sub create_new_filter {
+ my ( $filter, $tbl ) = @_;
+ $clear_screen_sub->();
+
+ if ( !$filter || $filter =~ m/\W/ ) {
+ print word_wrap("Choose a name for the filter. This name is not displayed, and is only used "
+ . "for internal reference. It can only contain lowercase letters, numbers, and underscores.");
+ print "\n\n";
+ do {
+ $filter = prompt("Enter filter name");
+ } while ( !$filter || $filter =~ m/\W/ );
+ }
+
+ my $completion = sub { keys %{$tbl_meta{$tbl}->{cols}} };
+ my ( $err, $sub, $body );
+ do {
+ $clear_screen_sub->();
+ print word_wrap("A filter is a Perl subroutine that accepts a hashref of columns "
+ . "called \$set, and returns a true value if the filter accepts the row. Example:\n"
+ . " \$set->{active_secs} > 5\n"
+ . "will only allow rows if their active_secs column is greater than 5.");
+ print "\n\n";
+ if ( $err ) {
+ print "There's an error in your filter expression: $err\n\n";
+ }
+ $body = prompt("Enter subroutine body", undef, undef, $completion);
+ ( $sub, $err ) = compile_filter($body);
+ } while ( $err );
+
+ $filters{$filter} = {
+ func => $sub,
+ text => $body,
+ user => 1,
+ name => $filter,
+ note => 'User-defined filter',
+ tbls => [$tbl],
+ };
+}
+
+# get_config_interactive {{{3
+sub get_config_interactive {
+ my $key = shift;
+ $clear_screen_sub->();
+
+ # Print help first.
+ print "Enter a new value for '$key' ($config{$key}->{note}).\n";
+
+ my $current = ref($config{$key}->{val}) ? join(" ", @{$config{$key}->{val}}) : $config{$key}->{val};
+
+ my $new_value = prompt('Enter a value', $config{$key}->{pat}, $current);
+ $config{$key}->{val} = $new_value;
+}
+
+sub edit_current_var_set {
+ my $mode = $config{mode}->{val};
+ my $name = $config{"${mode}_set"}->{val};
+ my $variables = $var_sets{$name}->{text};
+
+ my $new = $variables;
+ do {
+ $clear_screen_sub->();
+ $new = prompt("Enter variables for $name", undef, $variables);
+ } until ( $new );
+
+ if ( $new ne $variables ) {
+ @{$var_sets{$name}}{qw(text user)} = ( $new, 1);
+ }
+}
+
+
+sub choose_var_set {
+ my ( $key ) = @_;
+ $clear_screen_sub->();
+
+ my $new_value = prompt_list(
+ 'Choose a set of values to display, or enter the name of a new one',
+ $config{$key}->{val},
+ sub { return keys %var_sets },
+ { map { $_ => $var_sets{$_}->{text} } keys %var_sets });
+
+ if ( !exists $var_sets{$new_value} ) {
+ add_new_var_set($new_value);
+ }
+
+ $config{$key}->{val} = $new_value if exists $var_sets{$new_value};
+}
+
+sub switch_var_set {
+ my ( $cfg_var, $dir ) = @_;
+ my @var_sets = sort keys %var_sets;
+ my $cur = $config{$cfg_var}->{val};
+ my $pos = grep { $_ lt $cur } @var_sets;
+ my $newpos = ($pos + $dir) % @var_sets;
+ $config{$cfg_var}->{val} = $var_sets[$newpos];
+ $clear_screen_sub->();
+}
+
+# Online configuration and prompting functions {{{2
+
+# edit_stmt_sleep_times {{{3
+sub edit_stmt_sleep_times {
+ $clear_screen_sub->();
+ my $stmt = prompt_list('Specify a statement', '', sub { return sort keys %stmt_maker_for });
+ return unless $stmt && exists $stmt_maker_for{$stmt};
+ $clear_screen_sub->();
+ my $curr_val = $stmt_sleep_time_for{$stmt} || 0;
+ my $new_val = prompt('Specify a sleep delay after calling this SQL', $num_regex, $curr_val);
+ if ( $new_val ) {
+ $stmt_sleep_time_for{$stmt} = $new_val;
+ }
+ else {
+ delete $stmt_sleep_time_for{$stmt};
+ }
+}
+
+# edit_server_groups {{{3
+# Choose which server connections are in a server group. First choose a group,
+# then choose which connections are in it.
+sub edit_server_groups {
+ $clear_screen_sub->();
+ my $mode = $config{mode}->{val};
+ my $group = $modes{$mode}->{server_group};
+ my %curr = %server_groups;
+ my $new = choose_or_create_server_group($group, 'to edit');
+ $clear_screen_sub->();
+ if ( exists $curr{$new} ) {
+ # Don't do this step if the user just created a new server group,
+ # because part of that process was to choose connections.
+ my $cxns = join(' ', @{$server_groups{$new}});
+ my @conns = choose_or_create_connection($cxns, 'for this group');
+ $server_groups{$new} = \@conns;
+ }
+}
+
+# choose_server_groups {{{3
+sub choose_server_groups {
+ $clear_screen_sub->();
+ my $mode = $config{mode}->{val};
+ my $group = $modes{$mode}->{server_group};
+ my $new = choose_or_create_server_group($group, 'for this mode');
+ $modes{$mode}->{server_group} = $new if exists $server_groups{$new};
+}
+
+sub choose_or_create_server_group {
+ my ( $group, $prompt ) = @_;
+ my $new = '';
+
+ my @available = sort keys %server_groups;
+
+ if ( @available ) {
+ print "You can enter the name of a new group to create it.\n";
+
+ $new = prompt_list(
+ "Choose a server group $prompt",
+ $group,
+ sub { return @available },
+ { map { $_ => join(' ', @{$server_groups{$_}}) } @available });
+
+ $new =~ s/\s.*//;
+
+ if ( !exists $server_groups{$new} ) {
+ my $answer = prompt("There is no server group called '$new'. Create it?", undef, "y");
+ if ( $answer eq 'y' ) {
+ add_new_server_group($new);
+ }
+ }
+ }
+ else {
+ $new = add_new_server_group();
+ }
+ return $new;
+}
+
+sub choose_or_create_connection {
+ my ( $cxns, $prompt ) = @_;
+ print "You can enter the name of a new connection to create it.\n";
+
+ my @available = sort keys %connections;
+ my $new_cxns = prompt_list(
+ "Choose connections $prompt",
+ $cxns,
+ sub { return @available },
+ { map { $_ => $connections{$_}->{dsn} } @available });
+
+ my @new = unique(grep { !exists $connections{$_} } $new_cxns =~ m/(\S+)/g);
+ foreach my $new ( @new ) {
+ my $answer = prompt("There is no connection called '$new'. Create it?", undef, "y");
+ if ( $answer eq 'y' ) {
+ add_new_dsn($new);
+ }
+ }
+
+ return unique(grep { exists $connections{$_} } split(/\s+/, $new_cxns));
+}
+
+# choose_servers {{{3
+sub choose_servers {
+ $clear_screen_sub->();
+ my $mode = $config{mode}->{val};
+ my $cxns = join(' ', get_connections());
+ my @chosen = choose_or_create_connection($cxns, 'for this mode');
+ $modes{$mode}->{connections} = \@chosen;
+ $modes{$mode}->{server_group} = ''; # Clear this because it overrides {connections}
+ get_connections(); # This will set the server group if it matches connections just chosen
+}
+
+# display_license {{{3
+sub display_license {
+ $clear_screen_sub->();
+
+ print $innotop_license;
+
+ pause();
+}
+
+# Data-retrieval functions {{{2
+# get_status_info {{{3
+# Get SHOW STATUS and SHOW VARIABLES together.
+sub get_status_info {
+ my @cxns = @_;
+ if ( !$info_gotten{status}++ ) {
+ foreach my $cxn ( @cxns ) {
+ $vars{$cxn}->{$clock} ||= {};
+ my $vars = $vars{$cxn}->{$clock};
+
+ my $sth = do_stmt($cxn, 'SHOW_STATUS') or next;
+ my $res = $sth->fetchall_arrayref();
+ map { $vars->{$_->[0]} = $_->[1] || 0 } @$res;
+
+ # Calculate hi-res uptime and add cxn to the hash. This duplicates get_driver_status,
+ # but it's most important to have consistency.
+ $vars->{Uptime_hires} ||= get_uptime($cxn);
+ $vars->{cxn} = $cxn;
+
+ # Add SHOW VARIABLES to the hash. If we've gotten this info before, skip and re-use.
+ if ( $show_variables{$cxn} ) {
+ $res = $show_variables{$cxn};
+ }
+ else {
+ $sth = do_stmt($cxn, 'SHOW_VARIABLES') or next;
+ $res = $sth->fetchall_arrayref();
+ $res = {map { $_->[0] => $_->[1] || 0 } @$res};
+ $show_variables{$cxn} = $res;
+ }
+ @{$vars}{keys %$res} = values %$res;
+
+ # Create sparklines for QPS and Threads_running. As a consequence of
+ # this, we get QPS for free. TODO: remove QPS computation from
+ # elsewhere.
+ my $pre = $vars{$cxn}->{$clock - 1};
+ if ( $pre && $pre->{Uptime_hires} ) {
+ my @prev_qps = ($pre->{SPARK_store_qps} || '') =~ m/(\S+)/g;
+ my @prev_run = ($pre->{SPARK_store_run} || '') =~ m/(\S+)/g;
+
+ # Find out the values; throw away if too many; sparkify; store.
+ my $this_qps = (($vars->{Questions} || 0) - ($pre->{Questions} || 0))/
+ ($vars->{Uptime_hires} - $pre->{Uptime_hires});
+ push @prev_qps, $this_qps;
+ shift @prev_qps if @prev_qps > $config{spark}->{val};
+ my $qps_spark = sparkify(@prev_qps);
+ $vars->{SPARK_qps} = $qps_spark;
+ $vars->{SPARK_store_qps} = join(' ', @prev_qps);
+ my $this_run = $vars->{Threads_running};
+ push @prev_run, $this_run;
+ shift @prev_run if @prev_run > $config{spark}->{val};
+ my $run_spark = sparkify(@prev_run);
+ $vars->{SPARK_run} = $run_spark;
+ $vars->{SPARK_store_run} = join(' ', @prev_run);
+ }
+ }
+ }
+}
+
+# Chooses a thread for explaining, killing, etc...
+# First arg is a func that can be called in grep.
+sub choose_thread {
+ my ( $grep_cond, $prompt ) = @_;
+
+ my %thread_for = map {
+ # Eliminate innotop's own threads.
+ $_ => $dbhs{$_}->{dbh} ? $dbhs{$_}->{dbh}->{mysql_thread_id} : 0
+ } keys %connections;
+
+ my @candidates = grep {
+ $_->{id} != $thread_for{$_->{cxn}} && $grep_cond->($_)
+ } @current_queries;
+ return unless @candidates;
+
+ # Find out which server.
+ my @cxns = unique map { $_->{cxn} } @candidates;
+ my ( $cxn ) = select_cxn('On which server', @cxns);
+ return unless $cxn && exists($connections{$cxn});
+
+ # Re-filter the list of candidates to only those on this server
+ @candidates = grep { $_->{cxn} eq $cxn } @candidates;
+
+ # Find out which thread to do.
+ my $info;
+ if ( @candidates > 1 ) {
+
+ # Sort longest-active first, then longest-idle.
+ my $sort_func = sub {
+ my ( $a, $b ) = @_;
+ return $a->{query} && !$b->{query} ? 1
+ : $b->{query} && !$a->{query} ? -1
+ : ($a->{time} || 0) cmp ($b->{time} || 0);
+ };
+ my @threads = map { $_->{id} } reverse sort { $sort_func->($a, $b) } @candidates;
+
+ print "\n";
+ my $thread = prompt_list($prompt,
+ $threads[0],
+ sub { return @threads });
+ return unless $thread && $thread =~ m/$int_regex/;
+
+ # Find the info hash of that query on that server.
+ ( $info ) = grep { $thread == $_->{id} } @candidates;
+ }
+ else {
+ $info = $candidates[0];
+ }
+ return $info;
+}
+
+# analyze_query {{{3
+# Allows the user to show fulltext, explain, show optimized...
+sub analyze_query {
+ my ( $action ) = @_;
+
+ my $info = choose_thread(
+ sub { $_[0]->{query} },
+ 'Select a thread to analyze',
+ );
+ return unless $info;
+
+ my %actions = (
+ e => \&display_explain,
+ f => \&show_full_query,
+ o => \&show_optimized_query,
+ );
+ do {
+ $actions{$action}->($info);
+ print "\n";
+ $action = pause('Press e to explain, f for full query, o for optimized query');
+ } while ( exists($actions{$action}) );
+}
+
+# inc {{{3
+# Returns the difference between two sets of variables/status/innodb stuff.
+sub inc {
+ my ( $offset, $cxn ) = @_;
+ my $vars = $vars{$cxn};
+ if ( $offset < 0 ) {
+ return $vars->{$clock};
+ }
+ elsif ( exists $vars{$clock - $offset} && !exists $vars->{$clock - $offset - 1} ) {
+ return $vars->{$clock - $offset};
+ }
+ my $cur = $vars->{$clock - $offset};
+ my $pre = $vars->{$clock - $offset - 1};
+ return {
+ # Numeric variables get subtracted, non-numeric get passed straight through.
+ map {
+ $_ =>
+ ( (defined $cur->{$_} && $cur->{$_} =~ m/$num_regex/ && ($pre->{$_} || '') =~ m/$num_regex/ )
+ ? $cur->{$_} - ($pre->{$_} || 0)
+ : $cur->{$_} )
+ } keys %{$cur}
+ };
+}
+
+# extract_values {{{3
+# Arguments are a set of values (which may be incremental, derived from
+# current and previous), current, and previous values.
+# TODO: there are a few places that don't remember prev set so can't pass it.
+sub extract_values {
+ my ( $set, $cur, $pre, $tbl ) = @_;
+
+ # Hook in event listeners
+ foreach my $listener ( @{$event_listener_for{extract_values}} ) {
+ $listener->extract_values($set, $cur, $pre, $tbl);
+ }
+
+ my $result = {};
+ my $meta = $tbl_meta{$tbl};
+ my $cols = $meta->{cols};
+ foreach my $key ( keys %$cols ) {
+ my $info = $cols->{$key}
+ or die "Column '$key' doesn't exist in $tbl";
+ die "No func defined for '$key' in $tbl"
+ unless $info->{func};
+ eval {
+ $result->{$key} = $info->{func}->($set, $cur, $pre)
+ };
+ if ( $EVAL_ERROR ) {
+ if ( $config{debug}->{val} ) {
+ die $EVAL_ERROR;
+ }
+ $result->{$key} = $info->{num} ? 0 : '';
+ }
+ }
+ return $result;
+}
+
+# get_processlist_stats {{{3
+# Inserts special values as though they are SHOW STATUS counters.
+sub get_processlist_stats {
+ my @cxns = @_;
+ @current_queries = ();
+ if ( !$info_gotten{processlist_stats}++ ) {
+ foreach my $cxn ( @cxns ) {
+ my $max_query_time = 0;
+ my ($user_threads, $slaves, $longest_sql, $slave_sql, $locked);
+ $vars{$cxn}->{$clock} ||= {};
+ my $vars = $vars{$cxn}->{$clock};
+ $vars->{cxn} = $cxn;
+ my $stmt = do_stmt($cxn, 'PROCESSLIST_NO_IS') or next;
+ my $arr = $stmt->fetchall_arrayref({});
+ my $cur = undef;
+ foreach my $thread ( @$arr ) {
+ if ( ($thread->{state} || '') =~ m/lock/i ) {
+ $locked++;
+ }
+ # Ignore non-user threads, but remember the SQL in case there is
+ # no user SQL. Ignore sleeping threads and SHOW PROCESSLIST
+ # threads.
+ if ( ($thread->{user} || '') =~ m/system user/ ) {
+ if ( $thread->{info} && $thread->{time} ) {
+ $slave_sql = $thread->{info};
+ }
+ next;
+ }
+ next unless $thread->{command};
+ if ( $thread->{command} eq 'Binlog Dump' ) {
+ $slaves++;
+ next;
+ }
+ next unless $thread->{command} eq 'Query';
+ next unless $thread->{state} && $thread->{info};
+ next if $thread->{info} =~ m#/\*innotop#;
+ $user_threads++;
+ if ( $thread->{time} > $max_query_time ) {
+ $max_query_time = $thread->{time};
+ $longest_sql = $thread->{info};
+ if ( $thread->{state} eq 'Checking table' ) {
+ $longest_sql = 'CHECK TABLE ' . $thread->{info};
+ }
+ $cur = {
+ cxn => $cxn,
+ id => $thread->{id},
+ db => $thread->{db},
+ query => $thread->{info},
+ time => $thread->{time},
+ user => $thread->{user},
+ host => $thread->{host},
+ };
+ $thread->{host} =~ s/:.*$//;
+ }
+ }
+ $vars->{Max_query_time} = $max_query_time;
+ $vars->{User_threads_running} = $user_threads;
+ $vars->{Slaves} = $slaves || 0;
+ $vars->{Longest_sql} = $longest_sql || $slave_sql || '';
+ $vars->{Locked_count} = $locked || 0;
+ $vars->{Uptime_hires} ||= get_uptime($cxn);
+ push @current_queries, $cur if $cur;
+ }
+ }
+}
+
+# get_full_processlist {{{3
+sub get_full_processlist {
+ my @cxns = @_;
+ my @result;
+ foreach my $cxn ( @cxns ) {
+ my $stmt = do_stmt($cxn, 'PROCESSLIST') or next;
+ my $arr = $stmt->fetchall_arrayref({});
+ push @result, map { $_->{cxn} = $cxn; $_ } @$arr;
+ }
+ return @result;
+}
+
+# get_open_tables {{{3
+sub get_open_tables {
+ my @cxns = @_;
+ my @result;
+ foreach my $cxn ( @cxns ) {
+ my $stmt = do_stmt($cxn, 'OPEN_TABLES') or next;
+ my $arr = $stmt->fetchall_arrayref({});
+ push @result, map { $_->{cxn} = $cxn; $_ } @$arr;
+ }
+ return @result;
+}
+
+# get_index_statistics {{{3
+sub get_index_statistics {
+ my @cxns = @_;
+ my @result;
+ foreach my $cxn ( @cxns ) {
+ my $stmt = do_stmt($cxn, 'INDEX_STATISTICS') or next;
+ my $arr = $stmt->fetchall_arrayref({});
+ push @result, map { $_->{cxn} = $cxn; $_ } @$arr;
+ }
+ return @result;
+}
+
+# get_index_table_statistics {{{3
+sub get_index_table_statistics {
+ my @cxns = @_;
+ my @result;
+ foreach my $cxn ( @cxns ) {
+ my $stmt = do_stmt($cxn, 'INDEX_TABLE_STATISTICS') or next;
+ my $arr = $stmt->fetchall_arrayref({});
+ push @result, map { $_->{cxn} = $cxn; $_ } @$arr;
+ }
+ return @result;
+}
+
+# get_table_statistics {{{3
+sub get_table_statistics {
+ my @cxns = @_;
+ my @result;
+ foreach my $cxn ( @cxns ) {
+ my $stmt = do_stmt($cxn, 'TABLE_STATISTICS') or next;
+ my $arr = $stmt->fetchall_arrayref({});
+ push @result, map { $_->{cxn} = $cxn; $_ } @$arr;
+ }
+ return @result;
+}
+
+# get_innodb_blocked_blocker {{{3
+sub get_innodb_blocked_blocker {
+ my @cxns = @_;
+ my @result;
+ foreach my $cxn ( @cxns ) {
+ my $stmt = do_stmt($cxn, 'INNODB_BLOCKED_BLOCKER') or next;
+ my $arr = $stmt->fetchall_arrayref({});
+ push @result, map { $_->{cxn} = $cxn; $_ } @$arr;
+ }
+ return @result;
+}
+
+# get_innodb_status {{{3
+sub get_innodb_status {
+ my ( $cxns, $addl_sections ) = @_;
+ if ( !$config{skip_innodb}->{val} && !$info_gotten{innodb_status}++ ) {
+
+ # Determine which sections need to be parsed
+ my %sections_required =
+ map { $tbl_meta{$_}->{innodb} => 1 }
+ grep { $_ && $tbl_meta{$_}->{innodb} }
+ get_visible_tables();
+
+ # Add in any other sections the caller requested.
+ foreach my $sec ( @$addl_sections ) {
+ $sections_required{$sec} = 1;
+ }
+
+ foreach my $cxn ( @$cxns ) {
+ my $innodb_status_text;
+
+ if ( $file ) { # Try to fetch status text from the file.
+ my @stat = stat($file);
+
+ # Initialize the file.
+ if ( !$file_mtime ) {
+ # Initialize to 130k from the end of the file (because the limit
+ # on the size of innodb status is 128k even with Google's patches)
+ # and try to grab the last status from the file.
+ sysseek($file, (-128 * 1_024), 2);
+ }
+
+ # Read from the file.
+ my $buffer;
+ if ( !$file_mtime || $file_mtime != $stat[9] ) {
+ $file_data = '';
+ while ( sysread($file, $buffer, 4096) ) {
+ $file_data .= $buffer;
+ }
+ $file_mtime = $stat[9];
+ }
+
+ # Delete everything but the last InnoDB status text from the file.
+ $file_data =~ s/\A.*(?=^=====================================\n...... ........ INNODB MONITOR OUTPUT)//ms;
+ $innodb_status_text = $file_data;
+ }
+
+ else {
+ next if ($show_variables{$cxn}->{have_innodb} || 'YES') eq 'NO';
+ my $stmt = do_stmt($cxn, 'INNODB_STATUS') or next;
+ $innodb_status_text = $stmt->fetchrow_hashref()->{status};
+ }
+
+ next unless $innodb_status_text
+ && substr($innodb_status_text, 0, 100) =~ m/INNODB MONITOR OUTPUT/;
+
+ # Parse and merge into %vars storage
+ my %innodb_status = (
+ $innodb_parser->get_status_hash(
+ $innodb_status_text,
+ $config{debug}->{val},
+ \%sections_required,
+ 0, # don't parse full lock information
+ $show_variables{$cxn}->{version}
+ )
+ );
+ if ( !$innodb_status{IB_got_all} && $config{auto_wipe_dl}->{val} ) {
+ clear_deadlock($cxn);
+ }
+
+ # Merge using a hash slice, which is the fastest way
+ $vars{$cxn}->{$clock} ||= {};
+ my $hash = $vars{$cxn}->{$clock};
+ @{$hash}{ keys %innodb_status } = values %innodb_status;
+ $hash->{cxn} = $cxn;
+ $hash->{Uptime_hires} ||= get_uptime($cxn);
+ }
+ }
+}
+
+# clear_deadlock {{{3
+sub clear_deadlock {
+ my ( $cxn ) = @_;
+ return if $clearing_deadlocks++;
+ my $tbl = $connections{$cxn}->{dl_table};
+ return unless $tbl;
+
+ eval {
+ # disable binary logging for the session
+ do_query($cxn, "set SQL_LOG_BIN=0");
+
+ # Set up the table for creating a deadlock.
+ my $engine = version_ge($dbhs{$cxn}->{dbh}, '4.1.2') ? 'engine' : 'type';
+ return unless do_query($cxn, "drop table if exists $tbl");
+ return unless do_query($cxn, "create table $tbl(a int) $engine=innodb");
+ return unless do_query($cxn, "delete from $tbl");
+ return unless do_query($cxn, "insert into $tbl(a) values(0), (1)");
+ return unless do_query($cxn, "commit"); # Or the children will block against the parent
+
+ # Fork off two children to deadlock against each other.
+ my %children;
+ foreach my $child ( 0..1 ) {
+ my $pid = fork();
+ if ( defined($pid) && $pid == 0 ) { # I am a child
+ deadlock_thread( $child, $tbl, $cxn );
+ }
+ elsif ( !defined($pid) ) {
+ die("Unable to fork for clearing deadlocks!\n");
+ }
+ # I already exited if I'm a child, so I'm the parent.
+ $children{$child} = $pid;
+ }
+
+ # Wait for the children to exit.
+ foreach my $child ( keys %children ) {
+ my $pid = waitpid($children{$child}, 0);
+ }
+
+ # Clean up.
+ do_query($cxn, "drop table $tbl");
+
+ # enable binary logging for the session again
+ # the session by itself will not be used anymore, but this is clean :)
+ do_query($cxn, "set SQL_LOG_BIN=1");
+
+ };
+ if ( $EVAL_ERROR ) {
+ print $EVAL_ERROR;
+ pause();
+ }
+
+ $clearing_deadlocks = 0;
+}
+
+sub get_master_logs {
+ my @cxns = @_;
+ my @result;
+ if ( !$info_gotten{master_logs}++ ) {
+ foreach my $cxn ( @cxns ) {
+ my $stmt = do_stmt($cxn, 'SHOW_MASTER_LOGS') or next;
+ push @result, @{$stmt->fetchall_arrayref({})};
+ }
+ }
+ return @result;
+}
+
+# get_master_slave_status {{{3
+# Inserts special counters as though they are SHOW STATUS counters.
+sub get_master_slave_status {
+ my @cxns = @_;
+ if ( !$info_gotten{replication_status}++ ) {
+ foreach my $cxn ( @cxns ) {
+ $vars{$cxn}->{$clock} ||= {};
+ my $vars = $vars{$cxn}->{$clock};
+ $vars->{cxn} = $cxn;
+ $vars->{Uptime_hires} ||= get_uptime($cxn);
+
+ my $stmt = do_stmt($cxn, 'SHOW_MASTER_STATUS') or next;
+ my $res = $stmt->fetchall_arrayref({})->[0];
+ @{$vars}{ keys %$res } = values %$res;
+
+ }
+ }
+}
+
+# get_slave_status {{{3
+# Separated handling of slave status to support 5.7 and replication channels
+sub get_slave_status {
+ my ($cxn, $channel) = @_;
+ my $chcxn = $channel . '=' . $cxn;
+ $vars{$chcxn}->{$clock} ||= {};
+ my $vars = $vars{$chcxn}->{$clock};
+ $vars->{chcxn} = $chcxn;
+ $vars->{Uptime_hires} ||= get_uptime($chcxn);
+
+ if ( $channel =~ /no_channels/ ) {
+ my $stmt = do_stmt($cxn, 'SHOW_SLAVE_STATUS') or next;
+ my $res = $stmt->fetchall_arrayref({});
+ if ( $res && @$res ) {
+ $res = $res->[0];
+ @{$vars}{ keys %$res } = values %$res;
+ $vars->{Slave_ok} =
+ (($res->{slave_sql_running} || 'Yes') eq 'Yes'
+ && ($res->{slave_io_running} || 'Yes') eq 'Yes') ? 'Yes' : 'No';
+ }
+ else {
+ $vars->{Slave_ok} = 'Off';
+ }
+ } else {
+ my $dbh = connect_to_db($cxn);
+ my $sql = 'SHOW SLAVE STATUS FOR CHANNEL \'' . $channel . '\'';
+ my $stmt = $dbh->prepare($sql ) ;
+ $stmt->execute();
+ my $res = $stmt->fetchall_arrayref({});
+ if ( $res && @$res ) {
+ $res = $res->[0];
+ @{$vars}{ keys %$res } = values %$res;
+ $vars->{Slave_ok} =
+ (($res->{slave_sql_running} || 'Yes') eq 'Yes'
+ && ($res->{slave_io_running} || 'Yes') eq 'Yes') ? 'Yes' : 'No';
+ }
+ else {
+ $vars->{Slave_ok} = 'Off';
+ }
+ }
+ }
+
+
+
+
+sub is_func {
+ my ( $word ) = @_;
+ return defined(&$word)
+ || eval "my \$x= sub { $word }; 1"
+ || $EVAL_ERROR !~ m/^Bareword/;
+}
+
+# Documentation {{{1
+# ############################################################################
+# I put this last as per the Dog book.
+# ############################################################################
+=pod
+
+=head1 NAME
+
+innotop - MySQL and InnoDB transaction/status monitor.
+
+=head1 SYNOPSIS
+
+To monitor servers normally:
+
+ innotop
+
+To monitor InnoDB status information from a file:
+
+ innotop /var/log/mysql/mysqld.err
+
+To run innotop non-interactively in a pipe-and-filter configuration:
+
+ innotop --count 5 -d 1 -n
+
+To monitor a database on another system using a particular username and password:
+
+ innotop -u <username> -p <password> -h <hostname>
+
+=head1 DESCRIPTION
+
+innotop monitors MySQL servers. Each of its modes shows you a different aspect
+of what's happening in the server. For example, there's a mode for monitoring
+replication, one for queries, and one for transactions. innotop refreshes its
+data periodically, so you see an updating view.
+
+innotop has lots of features for power users, but you can start and run it with
+virtually no configuration. If you're just getting started, see
+L<"QUICK-START">. Press '?' at any time while running innotop for
+context-sensitive help.
+
+=head1 QUICK-START
+
+To start innotop, open a terminal or command prompt. If you have installed
+innotop on your system, you should be able to just type "innotop" and press
+Enter; otherwise, you will need to change to innotop's directory and type "perl
+innotop".
+
+With no options specified, innotop will attempt to connect to a MySQL server on
+localhost using mysql_read_default_group=client for other connection
+parameters. If you need to specify a different username and password, use the
+-u and -p options, respectively. To monitor a MySQL database on another
+host, use the -h option.
+
+After you've connected, innotop should show you something like the following:
+
+ [RO] Query List (? for help) localhost, 01:11:19, 449.44 QPS, 14/7/163 con/run
+
+ CXN When Load QPS Slow QCacheHit KCacheHit BpsIn BpsOut
+ localhost Total 0.00 1.07k 697 0.00% 98.17% 476.83k 242.83k
+
+ CXN Cmd ID User Host DB Time Query
+ localhost Query 766446598 test 10.0.0.1 foo 00:02 INSERT INTO table (
+
+
+(This sample is truncated at the right so it will fit on a terminal when running
+'man innotop')
+
+If your server is busy, you'll see more output. Notice the first line on the
+screen, which tells you that readonly is set to true ([RO]), what mode you're
+in and what server you're connected to. You can change to other modes with
+keystrokes; press 'T' to switch to a list of InnoDB transactions, for example.
+
+Press the '?' key to see what keys are active in the current mode. You can
+press any of these keys and innotop will either take the requested action or
+prompt you for more input. If your system has Term::ReadLine support, you can
+use TAB and other keys to auto-complete and edit input.
+
+To quit innotop, press the 'q' key.
+
+=head1 OPTIONS
+
+innotop is mostly configured via its configuration file, but some of the
+configuration options can come from the command line. You can also specify a
+file to monitor for InnoDB status output; see L<"MONITORING A FILE"> for more
+details.
+
+You can negate some options by prefixing the option name with --no. For
+example, --noinc (or --no-inc) negates L<"--inc">.
+
+=over
+
+=item --color
+
+Enable or disable terminal coloring. Corresponds to the L<"color"> config file
+setting.
+
+=item --config
+
+Specifies a configuration file to read. This option is non-sticky, that is to
+say it does not persist to the configuration file itself.
+
+=item --count
+
+Refresh only the specified number of times (ticks) before exiting. Each refresh
+is a pause for L<"interval"> seconds, followed by requesting data from MySQL
+connections and printing it to the terminal.
+
+=item --delay
+
+Specifies the amount of time to pause between ticks (refreshes). Corresponds to
+the configuration option L<"interval">.
+
+=item --help
+
+Print a summary of command-line usage and exit.
+
+=item --host
+
+Host to connect to.
+
+=item --inc
+
+Specifies whether innotop should display absolute numbers or relative numbers
+(offsets from their previous values). Corresponds to the configuration option
+L<"status_inc">.
+
+=item --mode
+
+Specifies the mode in which innotop should start. Corresponds to the
+configuration option L<"mode">.
+
+=item --nonint
+
+Enable non-interactive operation. See L<"NON-INTERACTIVE OPERATION"> for more.
+
+=item --password
+
+Password to use for connection.
+
+=item --port
+
+Port to use for connection.
+
+=item --skipcentral
+
+Don't read the central configuration file.
+
+=item --timestamp
+
+In -n mode, write a timestamp either before every screenful of output, or if
+the option is given twice, at the start of every line. The format is controlled
+by the timeformat config variable.
+
+=item --user
+
+User to use for connection.
+
+=item --version
+
+Output version information and exit.
+
+=item --write
+
+Sets the configuration option L<"readonly"> to 0, making innotop write the
+running configuration to ~/.innotop/innotop.conf on exit, if no configuration
+file was loaded at start-up.
+
+=back
+
+=head1 HOTKEYS
+
+innotop is interactive, and you control it with key-presses.
+
+=over
+
+=item *
+
+Uppercase keys switch between modes.
+
+=item *
+
+Lowercase keys initiate some action within the current mode.
+
+=item *
+
+Other keys do something special like change configuration or show the
+innotop license.
+
+=back
+
+Press '?' at any time to see the currently active keys and what they do.
+
+=head1 MODES
+
+Each of innotop's modes retrieves and displays a particular type of data from
+the servers you're monitoring. You switch between modes with uppercase keys.
+The following is a brief description of each mode, in alphabetical order. To
+switch to the mode, press the key listed in front of its heading in the
+following list:
+
+=over
+
+=item A: Health Dashboard
+
+This mode displays a single table with one row per monitored server. The
+columns show essential overview information about the server's health, and
+coloration rules show whether replication is running or if there are any very
+long-running queries or excessive replication delay.
+
+=item B: InnoDB Buffers
+
+This mode displays information about the InnoDB buffer pool, page statistics,
+insert buffer, and adaptive hash index. The data comes from SHOW INNODB STATUS.
+
+This mode contains the L<"buffer_pool">, L<"page_statistics">,
+L<"insert_buffers">, and L<"adaptive_hash_index"> tables by default.
+
+=item C: Command Summary
+
+This mode is similar to mytop's Command Summary mode. It shows the
+L<"cmd_summary"> table, which looks something like the following:
+
+ Command Summary (? for help) localhost, 25+07:16:43, 2.45 QPS, 3 thd, 5.0.40
+ _____________________ Command Summary _____________________
+ Name Value Pct Last Incr Pct
+ Select_scan 3244858 69.89% 2 100.00%
+ Select_range 1354177 29.17% 0 0.00%
+ Select_full_join 39479 0.85% 0 0.00%
+ Select_full_range_join 4097 0.09% 0 0.00%
+ Select_range_check 0 0.00% 0 0.00%
+
+The command summary table is built by extracting variables from
+L<"STATUS_VARIABLES">. The variables must be numeric and must match the prefix
+given by the L<"cmd_filter"> configuration variable. The variables are then
+sorted by value descending and compared to the last variable, as shown above.
+The percentage columns are percentage of the total of all variables in the
+table, so you can see the relative weight of the variables.
+
+The example shows what you see if the prefix is "Select_". The default
+prefix is "Com_". You can choose a prefix with the 's' key.
+
+It's rather like running SHOW VARIABLES LIKE "prefix%" with memory and
+nice formatting.
+
+Values are aggregated across all servers. The Pct columns are not correctly
+aggregated across multiple servers. This is a known limitation of the grouping
+algorithm that may be fixed in the future.
+
+=item D: InnoDB Deadlocks
+
+This mode shows the transactions involved in the last InnoDB deadlock. A second
+table shows the locks each transaction held and waited for. A deadlock is
+caused by a cycle in the waits-for graph, so there should be two locks held and
+one waited for unless the deadlock information is truncated.
+
+InnoDB puts deadlock information before some other information in the SHOW
+INNODB STATUS output. If there are a lot of locks, the deadlock information can
+grow very large, and there is a limit on the size of the SHOW INNODB
+STATUS output. A large deadlock can fill the entire output, or even be
+truncated, and prevent you from seeing other information at all. If you are
+running innotop in another mode, for example T mode, and suddenly you don't see
+anything, you might want to check and see if a deadlock has wiped out the data
+you need.
+
+If it has, you can create a small deadlock to replace the large one. Use the
+'w' key to 'wipe' the large deadlock with a small one. This will not work
+unless you have defined a deadlock table for the connection (see L<"SERVER
+CONNECTIONS">).
+
+You can also configure innotop to automatically detect when a large deadlock
+needs to be replaced with a small one (see L<"auto_wipe_dl">).
+
+This mode displays the L<"deadlock_transactions"> and L<"deadlock_locks"> tables
+by default.
+
+=item F: InnoDB Foreign Key Errors
+
+This mode shows the last InnoDB foreign key error information, such as the
+table where it happened, when and who and what query caused it, and so on.
+
+InnoDB has a huge variety of foreign key error messages, and many of them are
+just hard to parse. innotop doesn't always do the best job here, but there's
+so much code devoted to parsing this messy, unparseable output that innotop is
+likely never to be perfect in this regard. If innotop doesn't show you what
+you need to see, just look at the status text directly.
+
+This mode displays the L<"fk_error"> table by default.
+
+=item I: InnoDB I/O Info
+
+This mode shows InnoDB's I/O statistics, including the I/O threads, pending I/O,
+file I/O miscellaneous, and log statistics. It displays the L<"io_threads">,
+L<"pending_io">, L<"file_io_misc">, and L<"log_statistics"> tables by default.
+
+=item K: InnoDB Lock Waits
+
+This mode shows information from InnoDB plugin's transaction and locking tables.
+You can use it to find when a transaction is waiting for another, and kill the
+blocking transaction. It displays the L<"innodb_blocked_blocker>" table.
+
+=item L: Locks
+
+This mode shows information about current locks. At the moment only InnoDB
+locks are supported, and by default you'll only see locks for which transactions
+are waiting. This information comes from the TRANSACTIONS section of the InnoDB
+status text. If you have a very busy server, you may have frequent lock waits;
+it helps to be able to see which tables and indexes are the "hot spot" for
+locks. If your server is running pretty well, this mode should show nothing.
+
+You can configure MySQL and innotop to monitor not only locks for which a
+transaction is waiting, but those currently held, too. You can do this with the
+InnoDB Lock Monitor (L<http://dev.mysql.com/doc/en/innodb-monitor.html>). It's
+not documented in the MySQL manual, but creating the lock monitor with the
+following statement also affects the output of SHOW INNODB STATUS, which innotop
+uses:
+
+ CREATE TABLE innodb_lock_monitor(a int) ENGINE=INNODB;
+
+This causes InnoDB to print its output to the MySQL file every 16 seconds or so,
+as stated in the manual, but it also makes the normal SHOW INNODB STATUS output
+include lock information, which innotop can parse and display (that's the
+undocumented feature).
+
+This means you can do what may have seemed impossible: to a limited extent
+(InnoDB truncates some information in the output), you can see which transaction
+holds the locks something else is waiting for. You can also enable and disable
+the InnoDB Lock Monitor with the key mappings in this mode.
+
+This mode displays the L<"innodb_locks"> table by default. Here's a sample of
+the screen when one connection is waiting for locks another connection holds:
+
+ _________________________________ InnoDB Locks __________________________
+ CXN ID Type Waiting Wait Active Mode DB Table Index
+ localhost 12 RECORD 1 00:10 00:10 X test t1 PRIMARY
+ localhost 12 TABLE 0 00:10 00:10 IX test t1
+ localhost 12 RECORD 1 00:10 00:10 X test t1 PRIMARY
+ localhost 11 TABLE 0 00:00 00:25 IX test t1
+ localhost 11 RECORD 0 00:00 00:25 X test t1 PRIMARY
+
+You can see the first connection, ID 12, is waiting for a lock on the PRIMARY
+key on test.t1, and has been waiting for 10 seconds. The second connection
+isn't waiting, because the Waiting column is 0, but it holds locks on the same
+index. That tells you connection 11 is blocking connection 12.
+
+=item M: Master/Slave Replication Status
+
+This mode shows the output of SHOW SLAVE STATUS and SHOW MASTER STATUS in three
+tables. The first two divide the slave's status into SQL and I/O thread status,
+and the last shows master status. Filters are applied to eliminate non-slave
+servers from the slave tables, and non-master servers from the master table.
+
+This mode displays the L<"slave_sql_status">, L<"slave_io_status">, and
+L<"master_status"> tables by default.
+
+=item O: Open Tables
+
+This section comes from MySQL's SHOW OPEN TABLES command. By default it is
+filtered to show tables which are in use by one or more queries, so you can
+get a quick look at which tables are 'hot'. You can use this to guess which
+tables might be locked implicitly.
+
+This mode displays the L<"open_tables"> mode by default.
+
+=item U: User Statistics
+
+This mode displays data that's available in Percona's enhanced version of MySQL
+(also known as Percona Server with XtraDB). Specifically, it makes it easy to
+enable and disable the so-called "user statistics." This feature gathers stats
+on clients, threads, users, tables, and indexes and makes them available as
+INFORMATION_SCHEMA tables. These are invaluable for understanding what your
+server is doing. They are also available in MariaDB.
+
+The statistics supported so far are only from the TABLE_STATISTICS and
+INDEX_STATISTICS tables added by Percona. There are three views: one of table stats,
+one of index stats (which can be aggregated with the = key), and one of both.
+
+The server doesn't gather these stats by default. You have to set the variable
+userstat_running to turn it on. You can do this easily with innotop from U mode,
+with the 's' key.
+
+=item Q: Query List
+
+This mode displays the output from SHOW FULL PROCESSLIST, much like B<mytop>'s
+query list mode. This mode does B<not> show InnoDB-related information. This
+is probably one of the most useful modes for general usage.
+
+There is an informative header that shows general status information about
+your server. You can toggle it on and off with the 'h' key. By default,
+innotop hides inactive processes and its own process. You can toggle these on
+and off with the 'i' and 'a' keys.
+
+You can EXPLAIN a query from this mode with the 'e' key. This displays the
+query's full text, the results of EXPLAIN, and in newer MySQL versions, even
+the optimized query resulting from EXPLAIN EXTENDED. innotop also tries to
+rewrite certain queries to make them EXPLAIN-able. For example, INSERT/SELECT
+statements are rewritable.
+
+This mode displays the L<"q_header"> and L<"processlist"> tables by default.
+
+=item R: InnoDB Row Operations and Semaphores
+
+This mode shows InnoDB row operations, row operation miscellaneous, semaphores,
+and information from the wait array. It displays the L<"row_operations">,
+L<"row_operation_misc">, L<"semaphores">, and L<"wait_array"> tables by default.
+
+=item S: Variables & Status
+
+This mode calculates statistics, such as queries per second, and prints them out
+in several different styles. You can show absolute values, or incremental values
+between ticks.
+
+You can switch between the views by pressing a key. The 's' key prints a
+single line each time the screen updates, in the style of B<vmstat>. The 'g'
+key changes the view to a graph of the same numbers, sort of like B<tload>.
+The 'v' key changes the view to a pivoted table of variable names on the left,
+with successive updates scrolling across the screen from left to right. You can
+choose how many updates to put on the screen with the L<"num_status_sets">
+configuration variable.
+
+Headers may be abbreviated to fit on the screen in interactive operation. You
+choose which variables to display with the 'c' key, which selects from
+predefined sets, or lets you create your own sets. You can edit the current set
+with the 'e' key.
+
+This mode doesn't really display any tables like other modes. Instead, it uses
+a table definition to extract and format the data, but it then transforms the
+result in special ways before outputting it. It uses the L<"var_status"> table
+definition for this.
+
+=item T: InnoDB Transactions
+
+This mode shows transactions from the InnoDB monitor's output, in B<top>-like
+format. This mode is the reason I wrote innotop.
+
+You can kill queries or processes with the 'k' and 'x' keys, and EXPLAIN a query
+with the 'e' or 'f' keys. InnoDB doesn't print the full query in transactions,
+so explaining may not work right if the query is truncated.
+
+The informational header can be toggled on and off with the 'h' key. By
+default, innotop hides inactive transactions and its own transaction. You can
+toggle this on and off with the 'i' and 'a' keys.
+
+This mode displays the L<"t_header"> and L<"innodb_transactions"> tables by
+default.
+
+=back
+
+=head1 INNOTOP STATUS
+
+The first line innotop displays is a "status bar" of sorts. What it contains
+depends on the mode you're in, and what servers you're monitoring. The first
+few words are always [RO] (if readonly is set to 1), the innotop mode, such as
+"InnoDB Txns" for T mode, followed by a reminder to press '?' for help at any
+time.
+
+=head2 ONE SERVER
+
+The simplest case is when you're monitoring a single server. In this case, the
+name of the connection is next on the status line. This is the name you gave
+when you created the connection -- most likely the MySQL server's hostname.
+This is followed by the server's uptime.
+
+If you're in an InnoDB mode, such as T or B, the next word is "InnoDB" followed
+by some information about the SHOW INNODB STATUS output used to render the
+screen. The first word is the number of seconds since the last SHOW INNODB
+STATUS, which InnoDB uses to calculate some per-second statistics. The next is
+a smiley face indicating whether the InnoDB output is truncated. If the smiley
+face is a :-), all is well; there is no truncation. A :^| means the transaction
+list is so long, InnoDB has only printed out some of the transactions. Finally,
+a frown :-( means the output is incomplete, which is probably due to a deadlock
+printing too much lock information (see L<"D: InnoDB Deadlocks">).
+
+The next two words indicate the server's queries per second (QPS) and how many
+threads (connections) exist. Finally, the server's version number is the last
+thing on the line.
+
+=head2 MULTIPLE SERVERS
+
+If you are monitoring multiple servers (see L<"SERVER CONNECTIONS">), the status
+line does not show any details about individual servers. Instead, it shows the
+names of the connections that are active. Again, these are connection names you
+specified, which are likely to be the server's hostname. A connection that has
+an error is prefixed with an exclamation point.
+
+If you are monitoring a group of servers (see L<"SERVER GROUPS">), the status
+line shows the name of the group. If any connection in the group has an
+error, the group's name is followed by the fraction of the connections that
+don't have errors.
+
+See L<"ERROR HANDLING"> for more details about innotop's error handling.
+
+=head2 MONITORING A FILE
+
+If you give a filename on the command line, innotop will not connect to ANY
+servers at all. It will watch the specified file for InnoDB status output and
+use that as its data source. It will always show a single connection called
+'file'. And since it can't connect to a server, it can't determine how long the
+server it's monitoring has been up; so it calculates the server's uptime as time
+since innotop started running.
+
+=head1 SERVER ADMINISTRATION
+
+While innotop is primarily a monitor that lets you watch and analyze your
+servers, it can also send commands to servers. The most frequently useful
+commands are killing queries and stopping or starting slaves.
+
+You can kill a connection, or in newer versions of MySQL kill a query but not a
+connection, from L<"Q: Query List"> and L<"T: InnoDB Transactions"> modes.
+Press 'k' to issue a KILL command, or 'x' to issue a KILL QUERY command.
+innotop will prompt you for the server and/or connection ID to kill (innotop
+does not prompt you if there is only one possible choice for any input).
+innotop pre-selects the longest-running query, or the oldest connection.
+Confirm the command with 'y'.
+
+In L<"M: Master/Slave Replication Status"> mode, you can start and stop slaves
+with the 'a' and 'o' keys, respectively. You can send these commands to many
+slaves at once. innotop fills in a default command of START SLAVE or STOP SLAVE
+for you, but you can actually edit the command and send anything you wish, such
+as SET GLOBAL SQL_SLAVE_SKIP_COUNTER=1 to make the slave skip one binlog event
+when it starts.
+
+You can also ask innotop to calculate the earliest binlog in use by any slave
+and issue a PURGE MASTER LOGS on the master. Use the 'b' key for this. innotop
+will prompt you for a master to run the command on, then prompt you for the
+connection names of that master's slaves (there is no way for innotop to
+determine this reliably itself). innotop will find the minimum binlog in use by
+these slave connections and suggest it as the argument to PURGE MASTER LOGS.
+
+in L<"U: User Statistics"> mode, you can use the 's' key to start and stop
+the collection of the statistics data for TABLE_STATISTICS and similar.
+
+=head1 SERVER CONNECTIONS
+
+When you create a server connection using '@', innotop asks you for a series of
+inputs, as follows:
+
+=over
+
+=item DSN
+
+A DSN is a Data Source Name, which is the initial argument passed to the DBI
+module for connecting to a server. It is usually of the form
+
+ DBI:mysql:;mysql_read_default_group=mysql;host=HOSTNAME
+
+Since this DSN is passed to the DBD::mysql driver, you should read the driver's
+documentation at L<"http://search.cpan.org/dist/DBD-mysql/lib/DBD/mysql.pm"> for
+the exact details on all the options you can pass the driver in the DSN. You
+can read more about DBI at L<http://dbi.perl.org/docs/>, and especially at
+L<http://search.cpan.org/~timb/DBI/DBI.pm>.
+
+The mysql_read_default_group=mysql option lets the DBD driver read your MySQL
+options files, such as ~/.my.cnf on UNIX-ish systems. You can use this to avoid
+specifying a username or password for the connection.
+
+=item InnoDB Deadlock Table
+
+This optional item tells innotop a table name it can use to deliberately create
+a small deadlock (see L<"D: InnoDB Deadlocks">). If you specify this option,
+you just need to be sure the table doesn't exist, and that innotop can create
+and drop the table with the InnoDB storage engine. You can safely omit or just
+accept the default if you don't intend to use this.
+
+=item Username
+
+innotop will ask you if you want to specify a username. If you say 'y', it will
+then prompt you for a user name. If you have a MySQL option file that specifies
+your username, you don't have to specify a username.
+
+The username defaults to your login name on the system you're running innotop on.
+
+=item Password
+
+innotop will ask you if you want to specify a password. Like the username, the
+password is optional, but there's an additional prompt that asks if you want to
+save the password in the innotop configuration file. If you don't save it in
+the configuration file, innotop will prompt you for a password each time it
+starts. Passwords in the innotop configuration file are saved in plain text,
+not encrypted in any way.
+
+=back
+
+Once you finish answering these questions, you should be connected to a server.
+But innotop isn't limited to monitoring a single server; you can define many
+server connections and switch between them by pressing the '@' key. See
+L<"SWITCHING BETWEEN CONNECTIONS">.
+
+=head1 SERVER GROUPS
+
+If you have multiple MySQL instances, you can put them into named groups, such
+as 'all', 'masters', and 'slaves', which innotop can monitor all together.
+
+You can choose which group to monitor with the '#' key, and you can press the
+TAB key to switch to the next group. If you're not currently monitoring a
+group, pressing TAB selects the first group.
+
+To create a group, press the '#' key and type the name of your new group, then
+type the names of the connections you want the group to contain.
+
+=head1 SWITCHING BETWEEN CONNECTIONS
+
+innotop lets you quickly switch which servers you're monitoring. The most basic
+way is by pressing the '@' key and typing the name(s) of the connection(s) you
+want to use. This setting is per-mode, so you can monitor different connections
+in each mode, and innotop remembers which connections you choose.
+
+You can quickly switch to the 'next' connection in alphabetical order with the
+'n' key. If you're monitoring a server group (see L<"SERVER GROUPS">) this will
+switch to the first connection.
+
+You can also type many connection names, and innotop will fetch and display data
+from them all. Just separate the connection names with spaces, for example
+"server1 server2." Again, if you type the name of a connection that doesn't
+exist, innotop will prompt you for connection information and create the
+connection.
+
+Another way to monitor multiple connections at once is with server groups. You
+can use the TAB key to switch to the 'next' group in alphabetical order, or if
+you're not monitoring any groups, TAB will switch to the first group.
+
+innotop does not fetch data in parallel from connections, so if you are
+monitoring a large group or many connections, you may notice increased delay
+between ticks.
+
+When you monitor more than one connection, innotop's status bar changes. See
+L<"INNOTOP STATUS">.
+
+=head1 ERROR HANDLING
+
+Error handling is not that important when monitoring a single connection, but is
+crucial when you have many active connections. A crashed server or lost
+connection should not crash innotop. As a result, innotop will continue to run
+even when there is an error; it just won't display any information from the
+connection that had an error. Because of this, innotop's behavior might confuse
+you. It's a feature, not a bug!
+
+innotop does not continue to query connections that have errors, because they
+may slow innotop and make it hard to use, especially if the error is a problem
+connecting and causes a long time-out. Instead, innotop retries the connection
+occasionally to see if the error still exists. If so, it will wait until some
+point in the future. The wait time increases in ticks as the Fibonacci series,
+so it tries less frequently as time passes.
+
+Since errors might only happen in certain modes because of the SQL commands
+issued in those modes, innotop keeps track of which mode caused the error. If
+you switch to a different mode, innotop will retry the connection instead of
+waiting.
+
+By default innotop will display the problem in red text at the bottom of the
+first table on the screen. You can disable this behavior with the
+L<"show_cxn_errors_in_tbl"> configuration option, which is enabled by default.
+If the L<"debug"> option is enabled, innotop will display the error at the
+bottom of every table, not just the first. And if L<"show_cxn_errors"> is
+enabled, innotop will print the error text to STDOUT as well. Error messages
+might only display in the mode that caused the error, depending on the mode and
+whether innotop is avoiding querying that connection.
+
+=head1 NON-INTERACTIVE OPERATION
+
+You can run innotop in non-interactive mode, in which case it is entirely
+controlled from the configuration file and command-line options. To start
+innotop in non-interactive mode, give the L"<--nonint"> command-line option.
+This changes innotop's behavior in the following ways:
+
+=over
+
+=item *
+
+Certain Perl modules are not loaded. Term::Readline is not loaded, since
+innotop doesn't prompt interactively. Term::ANSIColor and Win32::Console::ANSI
+modules are not loaded. Term::ReadKey is still used, since innotop may have to
+prompt for connection passwords when starting up.
+
+=item *
+
+innotop does not clear the screen after each tick.
+
+=item *
+
+innotop does not persist any changes to the configuration file.
+
+=item *
+
+If L<"--count"> is given and innotop is in incremental mode (see L<"status_inc">
+and L<"--inc">), innotop actually refreshes one more time than specified so it
+can print incremental statistics. This suppresses output during the first
+tick, so innotop may appear to hang.
+
+=item *
+
+innotop only displays the first table in each mode. This is so the output can
+be easily processed with other command-line utilities such as awk and sed. To
+change which tables display in each mode, see L<"TABLES">. Since L<"Q: Query
+List"> mode is so important, innotop automatically disables the L<"q_header">
+table. This ensures you'll see the L<"processlist"> table, even if you have
+innotop configured to show the q_header table during interactive operation.
+Similarly, in L<"T: InnoDB Transactions"> mode, the L<"t_header"> table is
+suppressed so you see only the L<"innodb_transactions"> table.
+
+=item *
+
+All output is tab-separated instead of being column-aligned with whitespace, and
+innotop prints the full contents of each table instead of only printing one
+screenful at a time.
+
+=item *
+
+innotop only prints column headers once instead of every tick (see
+L<"hide_hdr">). innotop does not print table captions (see
+L<"display_table_captions">). innotop ensures there are no empty lines in the
+output.
+
+=item *
+
+innotop does not honor the L<"shorten"> transformation, which normally shortens
+some numbers to human-readable formats.
+
+=item *
+
+innotop does not print a status line (see L<"INNOTOP STATUS">).
+
+=back
+
+=head1 CONFIGURING
+
+Nearly everything about innotop is configurable. Most things are possible to
+change with built-in commands, but you can also edit the configuration file.
+
+While running innotop, press the '$' key to bring up the configuration editing
+dialog. Press another key to select the type of data you want to edit:
+
+=over
+
+=item S: Statement Sleep Times
+
+Edits SQL statement sleep delays, which make innotop pause for the specified
+amount of time after executing a statement. See L<"SQL STATEMENTS"> for a
+definition of each statement and what it does. By default innotop does not
+delay after any statements.
+
+This feature is included so you can customize the side-effects caused by
+monitoring your server. You may not see any effects, but some innotop users
+have noticed that certain MySQL versions under very high load with InnoDB
+enabled take longer than usual to execute SHOW GLOBAL STATUS. If innotop calls
+SHOW FULL PROCESSLIST immediately afterward, the processlist contains more
+queries than the machine actually averages at any given moment. Configuring
+innotop to pause briefly after calling SHOW GLOBAL STATUS alleviates this
+effect.
+
+Sleep times are stored in the L<"stmt_sleep_times"> section of the configuration
+file. Fractional-second sleeps are supported, subject to your hardware's
+limitations.
+
+=item c: Edit Columns
+
+Starts the table editor on one of the displayed tables. See L<"TABLE EDITOR">.
+An alternative way to start the table editor without entering the configuration
+dialog is with the '^' key.
+
+=item g: General Configuration
+
+Starts the configuration editor to edit global and mode-specific configuration
+variables (see L<"MODES">). innotop prompts you to choose a variable from among
+the global and mode-specific ones depending on the current mode.
+
+=item k: Row-Coloring Rules
+
+Starts the row-coloring rules editor on one of the displayed table(s). See
+L<"COLORS"> for details.
+
+=item p: Manage Plugins
+
+Starts the plugin configuration editor. See L<"PLUGINS"> for details.
+
+=item s: Server Groups
+
+Lets you create and edit server groups. See L<"SERVER GROUPS">.
+
+=item t: Choose Displayed Tables
+
+Lets you choose which tables to display in this mode. See L<"MODES"> and
+L<"TABLES">.
+
+=back
+
+=head1 CONFIGURATION FILE
+
+innotop's default configuration file locations are $HOME/.innotop and
+/etc/innotop/innotop.conf, and they are looked for in that order. If the first
+configuration file exists, the second will not be processed. Those can be
+overridden with the L<"--config"> command-line option. You can edit it by hand
+safely, however innotop reads the configuration file when it starts, and, if
+readonly is set to 0, writes it out again when it exits. Thus, if readonly is
+set to 0, any changes you make by hand while innotop is running will be lost.
+
+innotop doesn't store its entire configuration in the configuration file. It
+has a huge set of default configuration values that it holds only in memory,
+and the configuration file only overrides these defaults. When you customize a
+default setting, innotop notices, and then stores the customizations into the
+file. This keeps the file size down, makes it easier to edit, and makes
+upgrades easier.
+
+A configuration file is read-only be default. You can override that with
+L<"--write">. See L<"readonly">.
+
+The configuration file is arranged into sections like an INI file. Each
+section begins with [section-name] and ends with [/section-name]. Each
+section's entries have a different syntax depending on the data they need to
+store. You can put comments in the file; any line that begins with a #
+character is a comment. innotop will not read the comments, so it won't write
+them back out to the file when it exits. Comments in read-only configuration
+files are still useful, though.
+
+The first line in the file is innotop's version number. This lets innotop
+notice when the file format is not backwards-compatible, and upgrade smoothly
+without destroying your customized configuration.
+
+The following list describes each section of the configuration file and the data
+it contains:
+
+=over
+
+=item general
+
+The 'general' section contains global configuration variables and variables that
+may be mode-specific, but don't belong in any other section. The syntax is a
+simple key=value list. innotop writes a comment above each value to help you
+edit the file by hand.
+
+=over
+
+=item S_func
+
+Controls S mode presentation (see L<"S: Variables & Status">). If g, values are
+graphed; if s, values are like vmstat; if p, values are in a pivoted table.
+
+=item S_set
+
+Specifies which set of variables to display in L<"S: Variables & Status"> mode.
+See L<"VARIABLE SETS">.
+
+=item auto_wipe_dl
+
+Instructs innotop to automatically wipe large deadlocks when it notices them.
+When this happens you may notice a slight delay. At the next tick, you will
+usually see the information that was being truncated by the large deadlock.
+
+=item charset
+
+Specifies what kind of characters to allow through the L<"no_ctrl_char">
+transformation. This keeps non-printable characters from confusing a
+terminal when you monitor queries that contain binary data, such as images.
+
+The default is 'ascii', which considers anything outside normal ASCII to be a
+control character. The other allowable values are 'unicode' and 'none'. 'none'
+considers every character a control character, which can be useful for
+collapsing ALL text fields in queries.
+
+=item cmd_filter
+
+This is the prefix that filters variables in L<"C: Command Summary"> mode.
+
+=item color
+
+Whether terminal coloring is permitted.
+
+=item cxn_timeout
+
+On MySQL versions 4.0.3 and newer, this variable is used to set the connection's
+timeout, so MySQL doesn't close the connection if it is not used for a while.
+This might happen because a connection isn't monitored in a particular mode, for
+example.
+
+=item debug
+
+This option enables more verbose errors and makes innotop more strict in some
+places. It can help in debugging filters and other user-defined code. It also
+makes innotop write a lot of information to L<"debugfile"> when there is a
+crash.
+
+=item debugfile
+
+A file to which innotop will write information when there is a crash. See
+L<"FILES">.
+
+=item display_table_captions
+
+innotop displays a table caption above most tables. This variable suppresses or
+shows captions on all tables globally. Some tables are configured with the
+hide_caption property, which overrides this.
+
+=item global
+
+Whether to show GLOBAL variables and status. innotop only tries to do this on
+servers which support the GLOBAL option to SHOW VARIABLES and SHOW STATUS. In
+some MySQL versions, you need certain privileges to do this; if you don't have
+them, innotop will not be able to fetch any variable and status data. This
+configuration variable lets you run innotop and fetch what data you can even
+without the elevated privileges.
+
+I can no longer find or reproduce the situation where GLOBAL wasn't allowed, but
+I know there was one.
+
+=item graph_char
+
+Defines the character to use when drawing graphs in L<"S: Variables & Status">
+mode.
+
+=item header_highlight
+
+Defines how to highlight column headers. This only works if Term::ANSIColor is
+available. Valid values are 'bold' and 'underline'.
+
+=item hide_hdr
+
+Hides column headers globally.
+
+=item interval
+
+The interval at which innotop will refresh its data (ticks). The interval is
+implemented as a sleep time between ticks, so the true interval will vary
+depending on how long it takes innotop to fetch and render data.
+
+This variable accepts fractions of a second.
+
+=item mode
+
+The mode in which innotop should start. Allowable arguments are the same as the
+key presses that select a mode interactively. See L<"MODES">.
+
+=item num_digits
+
+How many digits to show in fractional numbers and percents. This variable's
+range is between 0 and 9 and can be set directly from L<"S: Variables & Status">
+mode with the '+' and '-' keys. It is used in the L<"set_precision">,
+L<"shorten">, and L<"percent"> transformations.
+
+=item num_status_sets
+
+Controls how many sets of status variables to display in pivoted L<"S: Variables
+& Status"> mode. It also controls the number of old sets of variables innotop
+keeps in its memory, so the larger this variable is, the more memory innotop
+uses.
+
+=item plugin_dir
+
+Specifies where plugins can be found. By default, innotop stores plugins in the
+'plugins' subdirectory of your innotop configuration directory.
+
+=item readonly
+
+Whether the configuration file is readonly. This cannot be set interactively.
+
+=item show_cxn_errors
+
+Makes innotop print connection errors to STDOUT. See L<"ERROR HANDLING">.
+
+=item show_cxn_errors_in_tbl
+
+Makes innotop display connection errors as rows in the first table on screen.
+See L<"ERROR HANDLING">.
+
+=item show_percent
+
+Adds a '%' character after the value returned by the L<"percent">
+transformation.
+
+=item show_statusbar
+
+Controls whether to show the status bar in the display. See L<"INNOTOP
+STATUS">.
+
+=item skip_innodb
+
+Disables fetching SHOW INNODB STATUS, in case your server(s) do not have InnoDB
+enabled and you don't want innotop to try to fetch it. This can also be useful
+when you don't have the SUPER privilege, required to run SHOW INNODB STATUS.
+
+=item spark
+
+Specifies how wide a spark chart is. There are two ASCII spark charts in A
+mode, showing QPS and User_threads_running.
+
+=item status_inc
+
+Whether to show absolute or incremental values for status variables.
+Incremental values are calculated as an offset from the last value innotop saw
+for that variable. This is a global setting, but will probably become
+mode-specific at some point. Right now it is honored a bit inconsistently; some
+modes don't pay attention to it.
+
+=item timeformat
+
+The C-style strftime()-compatible format for the timestamp line to be printed
+in -n mode when -t is set.
+
+=back
+
+=item plugins
+
+This section holds a list of package names of active plugins. If the plugin
+exists, innotop will activate it. See L<"PLUGINS"> for more information.
+
+=item filters
+
+This section holds user-defined filters (see L<"FILTERS">). Each line is in the
+format filter_name=text='filter text' tbls='table list'.
+
+The filter text is the text of the subroutine's code. The table list is a list
+of tables to which the filter can apply. By default, user-defined filters apply
+to the table for which they were created, but you can manually override that by
+editing the definition in the configuration file.
+
+=item active_filters
+
+This section stores which filters are active on each table. Each line is in the
+format table_name=filter_list.
+
+=item tbl_meta
+
+This section stores user-defined or user-customized columns (see L<"COLUMNS">).
+Each line is in the format col_name=properties, where the properties are a
+name=quoted-value list.
+
+=item connections
+
+This section holds the server connections you have defined. Each line is in
+the format name=properties, where the properties are a name=value list. The
+properties are self-explanatory, and the only one that is treated specially is
+'pass' which is only present if 'savepass' is set. This section of the
+configuration file will be skipped if any DSN, username, or password
+command-line options are used. See L<"SERVER CONNECTIONS">.
+
+=item active_connections
+
+This section holds a list of which connections are active in each mode. Each
+line is in the format mode_name=connection_list.
+
+=item server_groups
+
+This section holds server groups. Each line is in the format
+name=connection_list. See L<"SERVER GROUPS">.
+
+=item active_server_groups
+
+This section holds a list of which server group is active in each mode. Each
+line is in the format mode_name=server_group.
+
+=item max_values_seen
+
+This section holds the maximum values seen for variables. This is used to scale
+the graphs in L<"S: Variables & Status"> mode. Each line is in the format
+name=value.
+
+=item active_columns
+
+This section holds table column lists. Each line is in the format
+tbl_name=column_list. See L<"COLUMNS">.
+
+=item sort_cols
+
+This section holds the sort definition. Each line is in the format
+tbl_name=column_list. If a column is prefixed with '-', that column sorts
+descending. See L<"SORTING">.
+
+=item visible_tables
+
+This section defines which tables are visible in each mode. Each line is in the
+format mode_name=table_list. See L<"TABLES">.
+
+=item varsets
+
+This section defines variable sets for use in L<"S: Status & Variables"> mode.
+Each line is in the format name=variable_list. See L<"VARIABLE SETS">.
+
+=item colors
+
+This section defines colorization rules. Each line is in the format
+tbl_name=property_list. See L<"COLORS">.
+
+=item stmt_sleep_times
+
+This section contains statement sleep times. Each line is in the format
+statement_name=sleep_time. See L<"S: Statement Sleep Times">.
+
+=item group_by
+
+This section contains column lists for table group_by expressions. Each line is
+in the format tbl_name=column_list. See L<"GROUPING">.
+
+=back
+
+=head1 CUSTOMIZING
+
+You can customize innotop a great deal. For example, you can:
+
+=over
+
+=item *
+
+Choose which tables to display, and in what order.
+
+=item *
+
+Choose which columns are in those tables, and create new columns.
+
+=item *
+
+Filter which rows display with built-in filters, user-defined filters, and
+quick-filters.
+
+=item *
+
+Sort the rows to put important data first or group together related rows.
+
+=item *
+
+Highlight rows with color.
+
+=item *
+
+Customize the alignment, width, and formatting of columns, and apply
+transformations to columns to extract parts of their values or format the values
+as you wish (for example, shortening large numbers to familiar units).
+
+=item *
+
+Design your own expressions to extract and combine data as you need. This gives
+you unlimited flexibility.
+
+=back
+
+All these and more are explained in the following sections.
+
+=head2 TABLES
+
+A table is what you'd expect: a collection of columns. It also has some other
+properties, such as a caption. Filters, sorting rules, and colorization rules
+belong to tables and are covered in later sections.
+
+Internally, table meta-data is defined in a data structure called %tbl_meta.
+This hash holds all built-in table definitions, which contain a lot of default
+instructions to innotop. The meta-data includes the caption, a list of columns
+the user has customized, a list of columns, a list of visible columns, a list of
+filters, color rules, a sort-column list, sort direction, and some information
+about the table's data sources. Most of this is customizable via the table
+editor (see L<"TABLE EDITOR">).
+
+You can choose which tables to show by pressing the '$' key. See L<"MODES"> and
+L<"TABLES">.
+
+The table life-cycle is as follows:
+
+=over
+
+=item *
+
+Each table begins with a data source, which is an array of hashes. See below
+for details on data sources.
+
+=item *
+
+Each element of the data source becomes a row in the final table.
+
+=item *
+
+For each element in the data source, innotop extracts values from the source and
+creates a row. This row is another hash, which later steps will refer to as
+$set. The values innotop extracts are determined by the table's columns. Each
+column has an extraction subroutine, compiled from an expression (see
+L<"EXPRESSIONS">). The resulting row is a hash whose keys are named the same as
+the column name.
+
+=item *
+
+innotop filters the rows, removing those that don't need to be displayed. See
+L<"FILTERS">.
+
+=item *
+
+innotop sorts the rows. See L<"SORTING">.
+
+=item *
+
+innotop groups the rows together, if specified. See L<"GROUPING">.
+
+=item *
+
+innotop colorizes the rows. See L<"COLORS">.
+
+=item *
+
+innotop transforms the column values in each row. See L<"TRANSFORMATIONS">.
+
+=item *
+
+innotop optionally pivots the rows (see L<"PIVOTING">), then filters and sorts
+them.
+
+=item *
+
+innotop formats and justifies the rows as a table. During this step, innotop
+applies further formatting to the column values, including alignment, maximum
+and minimum widths. innotop also does final error checking to ensure there are
+no crashes due to undefined values. innotop then adds a caption if specified,
+and the table is ready to print.
+
+=back
+
+The lifecycle is slightly different if the table is pivoted, as noted above. To
+clarify, if the table is pivoted, the process is extract, group, transform,
+pivot, filter, sort, create. If it's not pivoted, the process is extract,
+filter, sort, group, color, transform, create. This slightly convoluted process
+doesn't map all that well to SQL, but pivoting complicates things pretty
+thoroughly. Roughly speaking, filtering and sorting happen as late as needed to
+effect the final result as you might expect, but as early as possible for
+efficiency.
+
+Each built-in table is described below:
+
+=over
+
+=item adaptive_hash_index
+
+Displays data about InnoDB's adaptive hash index. Data source:
+L<"STATUS_VARIABLES">.
+
+=item buffer_pool
+
+Displays data about InnoDB's buffer pool. Data source: L<"STATUS_VARIABLES">.
+
+=item cmd_summary
+
+Displays weighted status variables. Data source: L<"STATUS_VARIABLES">.
+
+=item deadlock_locks
+
+Shows which locks were held and waited for by the last detected deadlock. Data
+source: L<"DEADLOCK_LOCKS">.
+
+=item deadlock_transactions
+
+Shows transactions involved in the last detected deadlock. Data source:
+L<"DEADLOCK_TRANSACTIONS">.
+
+=item explain
+
+Shows the output of EXPLAIN. Data source: L<"EXPLAIN">.
+
+=item file_io_misc
+
+Displays data about InnoDB's file and I/O operations. Data source:
+L<"STATUS_VARIABLES">.
+
+=item fk_error
+
+Displays various data about InnoDB's last foreign key error. Data source:
+L<"STATUS_VARIABLES">.
+
+=item health_dashboard
+
+Displays an overall summary of servers, one server per line, for monitoring.
+Data source: L<"STATUS_VARIABLES">, L<"MASTER_SLAVE">, L<"PROCESSLIST_STATS">.
+
+=item index_statistics
+
+Displays data from the INDEX_STATISTICS table in Percona-enhanced servers.
+
+=item index_table_statistics
+
+Displays data from the INDEX_STATISTICS and TABLE_STATISTICS tables in
+Percona-enhanced servers. It joins the two together, grouped by the database
+and table name. It is the default view in L<"U: User Statistics"> mode,
+and makes it easy to see what tables are hot, how many rows are read from indexes,
+how many changes are made, and how many changes are made to indexes.
+
+=item innodb_blocked_blocker
+
+Displays InnoDB locks and lock waits. Data source: L<"INNODB_BLOCKED_BLOCKER">.
+
+=item innodb_locks
+
+Displays InnoDB locks. Data source: L<"INNODB_LOCKS">.
+
+=item innodb_transactions
+
+Displays data about InnoDB's current transactions. Data source:
+L<"INNODB_TRANSACTIONS">.
+
+=item insert_buffers
+
+Displays data about InnoDB's insert buffer. Data source: L<"STATUS_VARIABLES">.
+
+=item io_threads
+
+Displays data about InnoDB's I/O threads. Data source: L<"IO_THREADS">.
+
+=item log_statistics
+
+Displays data about InnoDB's logging system. Data source: L<"STATUS_VARIABLES">.
+
+=item master_status
+
+Displays replication master status. Data source: L<"STATUS_VARIABLES">.
+
+=item open_tables
+
+Displays open tables. Data source: L<"OPEN_TABLES">.
+
+=item page_statistics
+
+Displays InnoDB page statistics. Data source: L<"STATUS_VARIABLES">.
+
+=item pending_io
+
+Displays InnoDB pending I/O operations. Data source: L<"STATUS_VARIABLES">.
+
+=item processlist
+
+Displays current MySQL processes (threads/connections). Data source:
+L<"PROCESSLIST">.
+
+=item q_header
+
+Displays various status values. Data source: L<"STATUS_VARIABLES">.
+
+=item row_operation_misc
+
+Displays data about InnoDB's row operations. Data source:
+L<"STATUS_VARIABLES">.
+
+=item row_operations
+
+Displays data about InnoDB's row operations. Data source:
+L<"STATUS_VARIABLES">.
+
+=item semaphores
+
+Displays data about InnoDB's semaphores and mutexes. Data source:
+L<"STATUS_VARIABLES">.
+
+=item slave_io_status
+
+Displays data about the slave I/O thread. Data source:
+L<"STATUS_VARIABLES">.
+
+=item slave_sql_status
+
+Displays data about the slave SQL thread. Data source: L<"STATUS_VARIABLES">.
+
+=item table_statistics
+
+Displays data from the TABLE_STATISTICS table in Percona-enhanced servers.
+
+=item t_header
+
+Displays various InnoDB status values. Data source: L<"STATUS_VARIABLES">.
+
+=item var_status
+
+Displays user-configurable data. Data source: L<"STATUS_VARIABLES">.
+
+=item wait_array
+
+Displays data about InnoDB's OS wait array. Data source: L<"OS_WAIT_ARRAY">.
+
+=back
+
+=head2 COLUMNS
+
+Columns belong to tables. You can choose a table's columns by pressing the '^'
+key, which starts the L<"TABLE EDITOR"> and lets you choose and edit columns.
+Pressing 'e' from within the table editor lets you edit the column's properties:
+
+=over
+
+=item *
+
+hdr: a column header. This appears in the first row of the table.
+
+=item *
+
+just: justification. '-' means left-justified and '' means right-justified,
+just as with printf formatting codes (not a coincidence).
+
+=item *
+
+dec: whether to further align the column on the decimal point.
+
+=item *
+
+num: whether the column is numeric. This affects how values are sorted
+(lexically or numerically).
+
+=item *
+
+label: a small note about the column, which appears in dialogs that help the
+user choose columns.
+
+=item *
+
+src: an expression that innotop uses to extract the column's data from its
+source (see L<"DATA SOURCES">). See L<"EXPRESSIONS"> for more on expressions.
+
+=item *
+
+minw: specifies a minimum display width. This helps stabilize the display,
+which makes it easier to read if the data is changing frequently.
+
+=item *
+
+maxw: similar to minw.
+
+=item *
+
+trans: a list of column transformations. See L<"TRANSFORMATIONS">.
+
+=item *
+
+agg: an aggregate function. See L<"GROUPING">. The default is L<"first">.
+
+=item *
+
+aggonly: controls whether the column only shows when grouping is enabled on the
+table (see L<"GROUPING">). By default, this is disabled. This means columns
+will always be shown by default, whether grouping is enabled or not. If a
+column's aggonly is set true, the column will appear when you toggle grouping on
+the table. Several columns are set this way, such as the count column on
+L<"processlist"> and L<"innodb_transactions">, so you don't see a count when the
+grouping isn't enabled, but you do when it is.
+
+=item *
+
+agghide: the reverse of aggonly. The column is hidden when grouping is enabled.
+
+=back
+
+=head2 FILTERS
+
+Filters remove rows from the display. They behave much like a WHERE clause in
+SQL. innotop has several built-in filters, which remove irrelevant information
+like inactive queries, but you can define your own as well. innotop also lets
+you create quick-filters, which do not get saved to the configuration file, and
+are just an easy way to quickly view only some rows.
+
+You can enable or disable a filter on any table. Press the '%' key (mnemonic: %
+looks kind of like a line being filtered between two circles) and choose which
+table you want to filter, if asked. You'll then see a list of possible filters
+and a list of filters currently enabled for that table. Type the names of
+filters you want to apply and press Enter.
+
+=head3 USER-DEFINED FILTERS
+
+If you type a name that doesn't exist, innotop will prompt you to create the
+filter. Filters are easy to create if you know Perl, and not hard if you don't.
+What you're doing is creating a subroutine that returns true if the row should
+be displayed. The row is a hash reference passed to your subroutine as $set.
+
+For example, imagine you want to filter the processlist table so you only see
+queries that have been running more than five minutes. Type a new name for your
+filter, and when prompted for the subroutine body, press TAB to initiate your
+terminal's auto-completion. You'll see the names of the columns in the
+L<"processlist"> table (innotop generally tries to help you with auto-completion
+lists). You want to filter on the 'time' column. Type the text "$set->{time} >
+300" to return true when the query is more than five minutes old. That's all
+you need to do.
+
+In other words, the code you're typing is surrounded by an implicit context,
+which looks like this:
+
+ sub filter {
+ my ( $set ) = @_;
+ # YOUR CODE HERE
+ }
+
+If your filter doesn't work, or if something else suddenly behaves differently,
+you might have made an error in your filter, and innotop is silently catching
+the error. Try enabling L<"debug"> to make innotop throw an error instead.
+
+=head3 QUICK-FILTERS
+
+innotop's quick-filters are a shortcut to create a temporary filter that doesn't
+persist when you restart innotop. To create a quick-filter, press the '/' key.
+innotop will prompt you for the column name and filter text. Again, you can use
+auto-completion on column names. The filter text can be just the text you want
+to "search for." For example, to filter the L<"processlist"> table on queries
+that refer to the products table, type '/' and then 'info product'. Internally,
+the filter is compiled into a subroutine like this:
+
+ sub filter {
+ my ( $set ) = @_;
+ $set->{info} =~ m/product/;
+ }
+
+The filter text can actually be any Perl regular expression, but of course a
+literal string like 'product' works fine as a regular expression.
+
+What if you want the filter to discard matching rows, rather than showing
+matching rows? If you're familiar with Perl regular expressions, you might
+guess how to do this. You have to use a zero-width negative lookahead
+assertion. If you don't know what that means, don't worry. Let's filter out
+all rows where the command is Gandalf. Type the following:
+
+ 1. /
+ 2. cmd ^(?!Gandalf)
+
+Behind the scenes innotop compiles the quick-filter into a specially tagged
+filter that is otherwise like any other filter. It just isn't saved to the
+configuration file.
+
+To clear quick-filters, press the '\' key and innotop will clear them all at
+once.
+
+=head2 SORTING
+
+innotop has sensible built-in defaults to sort the most important rows to the
+top of the table. Like anything else in innotop, you can customize how any
+table is sorted.
+
+To start the sort dialog, start the L<"TABLE EDITOR"> with the '^' key, choose a
+table if necessary, and press the 's' key. You'll see a list of columns you can
+use in the sort expression and the current sort expression, if any. Enter a
+list of columns by which you want to sort and press Enter. If you want to
+reverse sort, prefix the column name with a minus sign. For example, if you
+want to sort by column a ascending, then column b descending, type 'a -b'. You
+can also explicitly add a + in front of columns you want to sort ascending, but
+it's not required.
+
+Some modes have keys mapped to open this dialog directly, and to quickly reverse
+sort direction. Press '?' as usual to see which keys are mapped in any mode.
+
+=head2 GROUPING
+
+innotop can group, or aggregate, rows together (the terms are used
+interchangeably). This is quite similar to an SQL GROUP BY clause. You can
+specify to group on certain columns, or if you don't specify any, the entire set
+of rows is treated as one group. This is quite like SQL so far, but unlike SQL,
+you can also select un-grouped columns. innotop actually aggregates every
+column. If you don't explicitly specify a grouping function, the default is
+'first'. This is basically a convenience so you don't have to specify an
+aggregate function for every column you want in the result.
+
+You can quickly toggle grouping on a table with the '=' key, which toggles its
+aggregate property. This property doesn't persist to the config file.
+
+The columns by which the table is grouped are specified in its group_by
+property. When you turn grouping on, innotop places the group_by columns at the
+far left of the table, even if they're not supposed to be visible. The rest of
+the visible columns appear in order after them.
+
+Two tables have default group_by lists and a count column built in:
+L<"processlist"> and L<"innodb_transactions">. The grouping is by connection
+and status, so you can quickly see how many queries or transactions are in a
+given status on each server you're monitoring. The time columns are aggregated
+as a sum; other columns are left at the default 'first' aggregation.
+
+By default, the table shown in L<"S: Variables & Status"> mode also uses
+grouping so you can monitor variables and status across many servers. The
+default aggregation function in this mode is 'avg'.
+
+Valid grouping functions are defined in the %agg_funcs hash. They include
+
+=over
+
+=item first
+
+Returns the first element in the group.
+
+=item count
+
+Returns the number of elements in the group, including undefined elements, much
+like SQL's COUNT(*).
+
+=item avg
+
+Returns the average of defined elements in the group.
+
+=item sum
+
+Returns the sum of elements in the group.
+
+=back
+
+Here's an example of grouping at work. Suppose you have a very busy server with
+hundreds of open connections, and you want to see how many connections are in
+what status. Using the built-in grouping rules, you can press 'Q' to enter
+L<"Q: Query List"> mode. Press '=' to toggle grouping (if necessary, select the
+L<"processlist"> table when prompted).
+
+Your display might now look like the following:
+
+ Query List (? for help) localhost, 32:33, 0.11 QPS, 1 thd, 5.0.38-log
+
+ CXN Cmd Cnt ID User Host Time Query
+ localhost Query 49 12933 webusr localhost 19:38 SELECT * FROM
+ localhost Sending Da 23 2383 webusr localhost 12:43 SELECT col1,
+ localhost Sleep 120 140 webusr localhost 5:18:12
+ localhost Statistics 12 19213 webusr localhost 01:19 SELECT * FROM
+
+That's actually quite a worrisome picture. You've got a lot of idle connections
+(Sleep), and some connections executing queries (Query and Sending Data).
+That's okay, but you also have a lot in Statistics status, collectively spending
+over a minute. That means the query optimizer is having a really hard time
+generating execution plans for your statements. Something is wrong; it should
+normally take milliseconds to plan queries. You might not have seen this pattern if you
+didn't look at your connections in aggregate. (This is a made-up example, but
+it can happen in real life).
+
+=head2 PIVOTING
+
+innotop can pivot a table for more compact display, similar to a Pivot Table in
+a spreadsheet (also known as a crosstab). Pivoting a table makes columns into
+rows. Assume you start with this table:
+
+ foo bar
+ === ===
+ 1 3
+ 2 4
+
+After pivoting, the table will look like this:
+
+ name set0 set1
+ ==== ==== ====
+ foo 1 2
+ bar 3 4
+
+To get reasonable results, you might need to group as well as pivoting.
+innotop currently does this for L<"S: Variables & Status"> mode.
+
+=head2 COLORS
+
+By default, innotop highlights rows with color so you can see at a glance which
+rows are more important. You can customize the colorization rules and add your
+own to any table. Open the table editor with the '^' key, choose a table if
+needed, and press 'o' to open the color editor dialog.
+
+The color editor dialog displays the rules applied to the table, in the order
+they are evaluated. Each row is evaluated against each rule to see if the rule
+matches the row; if it does, the row gets the specified color, and no further
+rules are evaluated. The rules look like the following:
+
+ state eq Locked black on_red
+ cmd eq Sleep white
+ user eq system user white
+ cmd eq Connect white
+ cmd eq Binlog Dump white
+ time > 600 red
+ time > 120 yellow
+ time > 60 green
+ time > 30 cyan
+
+This is the default rule set for the L<"processlist"> table. In order of
+priority, these rules make locked queries black on a red background, "gray out"
+connections from replication and sleeping queries, and make queries turn from
+cyan to red as they run longer.
+
+(For some reason, the ANSI color code "white" is actually a light gray. Your
+terminal's display may vary; experiment to find colors you like).
+
+You can use keystrokes to move the rules up and down, which re-orders their
+priority. You can also delete rules and add new ones. If you add a new rule,
+innotop prompts you for the column, an operator for the comparison, a value
+against which to compare the column, and a color to assign if the rule matches.
+There is auto-completion and prompting at each step.
+
+The value in the third step needs to be correctly quoted. innotop does not try
+to quote the value because it doesn't know whether it should treat the value as
+a string or a number. If you want to compare the column against a string, as
+for example in the first rule above, you should enter 'Locked' surrounded by
+quotes. If you get an error message about a bareword, you probably should have
+quoted something.
+
+=head2 EXPRESSIONS
+
+Expressions are at the core of how innotop works, and are what enables you to
+extend innotop as you wish. Recall the table lifecycle explained in
+L<"TABLES">. Expressions are used in the earliest step, where it extracts
+values from a data source to form rows.
+
+It does this by calling a subroutine for each column, passing it the source data
+set, a set of current values, and a set of previous values. These are all
+needed so the subroutine can calculate things like the difference between this
+tick and the previous tick.
+
+The subroutines that extract the data from the set are compiled from
+expressions. This gives significantly more power than just naming the values to
+fill the columns, because it allows the column's value to be calculated from
+whatever data is necessary, but avoids the need to write complicated and lengthy
+Perl code.
+
+innotop begins with a string of text that can look as simple as a value's name
+or as complicated as a full-fledged Perl expression. It looks at each
+'bareword' token in the string and decides whether it's supposed to be a key
+into the $set hash. A bareword is an unquoted value that isn't already
+surrounded by code-ish things like dollar signs or curly brackets. If innotop
+decides that the bareword isn't a function or other valid Perl code, it converts
+it into a hash access. After the whole string is processed, innotop compiles a
+subroutine, like this:
+
+ sub compute_column_value {
+ my ( $set, $cur, $pre ) = @_;
+ my $val = # EXPANDED STRING GOES HERE
+ return $val;
+ }
+
+Here's a concrete example, taken from the header table L<"q_header"> in L<"Q:
+Query List"> mode. This expression calculates the qps, or Queries Per Second,
+column's values, from the values returned by SHOW STATUS:
+
+ Questions/Uptime_hires
+
+innotop decides both words are barewords, and transforms this expression into
+the following Perl code:
+
+ $set->{Questions}/$set->{Uptime_hires}
+
+When surrounded by the rest of the subroutine's code, this is executable Perl
+that calculates a high-resolution queries-per-second value.
+
+The arguments to the subroutine are named $set, $cur, and $pre. In most cases,
+$set and $cur will be the same values. However, if L<"status_inc"> is set, $cur
+will not be the same as $set, because $set will already contain values that are
+the incremental difference between $cur and $pre.
+
+Every column in innotop is computed by subroutines compiled in the same fashion.
+There is no difference between innotop's built-in columns and user-defined
+columns. This keeps things consistent and predictable.
+
+=head2 TRANSFORMATIONS
+
+Transformations change how a value is rendered. For example, they can take a
+number of seconds and display it in H:M:S format. The following transformations
+are defined:
+
+=over
+
+=item commify
+
+Adds commas to large numbers every three decimal places.
+
+=item distill
+
+Distills SQL into verb-noun-noun format for quick comprehension.
+
+=item dulint_to_int
+
+Accepts two unsigned integers and converts them into a single longlong. This is
+useful for certain operations with InnoDB, which uses two integers as
+transaction identifiers, for example.
+
+=item fuzzy_time
+
+Converts a number of seconds into a friendly, readable value like "1h35m".
+
+=item no_ctrl_char
+
+Removes quoted control characters from the value. This is affected by the
+L<"charset"> configuration variable.
+
+This transformation only operates within quoted strings, for example, values to
+a SET clause in an UPDATE statement. It will not alter the UPDATE statement,
+but will collapse the quoted string to [BINARY] or [TEXT], depending on the
+charset.
+
+=item percent
+
+Converts a number to a percentage by multiplying it by two, formatting it with
+L<"num_digits"> digits after the decimal point, and optionally adding a percent
+sign (see L<"show_percent">).
+
+=item secs_to_time
+
+Formats a number of seconds as time in days+hours:minutes:seconds format.
+
+=item set_precision
+
+Formats numbers with L<"num_digits"> number of digits after the decimal point.
+
+=item shorten
+
+Formats a number as a unit of 1024 (k/M/G/T) and with L<"num_digits"> number of
+digits after the decimal point.
+
+=back
+
+=head2 TABLE EDITOR
+
+The innotop table editor lets you customize tables with keystrokes. You start
+the table editor with the '^' key. If there's more than one table on the
+screen, it will prompt you to choose one of them. Once you do, innotop will
+show you something like this:
+
+ Editing table definition for Buffer Pool. Press ? for help, q to quit.
+
+ name hdr label src
+ cxn CXN Connection from which cxn
+ buf_pool_size Size Buffer pool size IB_bp_buf_poo
+ buf_free Free Bufs Buffers free in the b IB_bp_buf_fre
+ pages_total Pages Pages total IB_bp_pages_t
+ pages_modified Dirty Pages Pages modified (dirty IB_bp_pages_m
+ buf_pool_hit_rate Hit Rate Buffer pool hit rate IB_bp_buf_poo
+ total_mem_alloc Memory Total memory allocate IB_bp_total_m
+ add_pool_alloc Add'l Pool Additonal pool alloca IB_bp_add_poo
+
+The first line shows which table you're editing, and reminds you again to press
+'?' for a list of key mappings. The rest is a tabular representation of the
+table's columns, because that's likely what you're trying to edit. However, you
+can edit more than just the table's columns; this screen can start the filter
+editor, color rule editor, and more.
+
+Each row in the display shows a single column in the table you're editing, along
+with a couple of its properties such as its header and source expression (see
+L<"EXPRESSIONS">).
+
+The key mappings are Vim-style, as in many other places. Pressing 'j' and 'k'
+moves the highlight up or down. You can then (d)elete or (e)dit the highlighted
+column. You can also (a)dd a column to the table. This actually just activates
+one of the columns already defined for the table; it prompts you to choose from
+among the columns available but not currently displayed. Finally, you can
+re-order the columns with the '+' and '-' keys.
+
+You can do more than just edit the columns with the table editor, you can also
+edit other properties, such as the table's sort expression and group-by
+expression. Press '?' to see the full list, of course.
+
+If you want to really customize and create your own column, as opposed to just
+activating a built-in one that's not currently displayed, press the (n)ew key,
+and innotop will prompt you for the information it needs:
+
+=over
+
+=item *
+
+The column name: this needs to be a word without any funny characters, e.g. just
+letters, numbers and underscores.
+
+=item *
+
+The column header: this is the label that appears at the top of the column, in
+the table header. This can have spaces and funny characters, but be careful not
+to make it too wide and waste space on-screen.
+
+=item *
+
+The column's data source: this is an expression that determines what data from
+the source (see L<"TABLES">) innotop will put into the column. This can just be
+the name of an item in the source, or it can be a more complex expression, as
+described in L<"EXPRESSIONS">.
+
+=back
+
+Once you've entered the required data, your table has a new column. There is no
+difference between this column and the built-in ones; it can have all the same
+properties and behaviors. innotop will write the column's definition to the
+configuration file, so it will persist across sessions.
+
+Here's an example: suppose you want to track how many times your slaves have
+retried transactions. According to the MySQL manual, the
+Slave_retried_transactions status variable gives you that data: "The total
+number of times since startup that the replication slave SQL thread has retried
+transactions. This variable was added in version 5.0.4." This is appropriate to
+add to the L<"slave_sql_status"> table.
+
+To add the column, switch to the replication-monitoring mode with the 'M' key,
+and press the '^' key to start the table editor. When prompted, choose
+slave_sql_status as the table, then press 'n' to create the column. Type
+'retries' as the column name, 'Retries' as the column header, and
+'Slave_retried_transactions' as the source. Now the column is created, and you
+see the table editor screen again. Press 'q' to exit the table editor, and
+you'll see your column at the end of the table.
+
+=head1 VARIABLE SETS
+
+Variable sets are used in L<"S: Variables & Status"> mode to define more easily
+what variables you want to monitor. Behind the scenes they are compiled to a
+list of expressions, and then into a column list so they can be treated just
+like columns in any other table, in terms of data extraction and
+transformations. However, you're protected from the tedious details by a syntax
+that ought to feel very natural to you: a SQL SELECT list.
+
+The data source for variable sets, and indeed the entire S mode, is the
+combination of SHOW STATUS, SHOW VARIABLES, and SHOW INNODB STATUS. Imagine
+that you had a huge table with one column per variable returned from those
+statements. That's the data source for variable sets. You can now query this
+data source just like you'd expect. For example:
+
+ Questions, Uptime, Questions/Uptime as QPS
+
+Behind the scenes innotop will split that variable set into three expressions,
+compile them and turn them into a table definition, then extract as usual. This
+becomes a "variable set," or a "list of variables you want to monitor."
+
+innotop lets you name and save your variable sets, and writes them to the
+configuration file. You can choose which variable set you want to see with the
+'c' key, or activate the next and previous sets with the '>' and '<' keys.
+There are many built-in variable sets as well, which should give you a good
+start for creating your own. Press 'e' to edit the current variable set, or
+just to see how it's defined. To create a new one, just press 'c' and type its
+name.
+
+You may want to use some of the functions listed in L<"TRANSFORMATIONS"> to help
+format the results. In particular, L<"set_precision"> is often useful to limit
+the number of digits you see. Extending the above example, here's how:
+
+ Questions, Uptime, set_precision(Questions/Uptime) as QPS
+
+Actually, this still needs a little more work. If your L<"interval"> is less
+than one second, you might be dividing by zero because Uptime is incremental in
+this mode by default. Instead, use Uptime_hires:
+
+ Questions, Uptime, set_precision(Questions/Uptime_hires) as QPS
+
+This example is simple, but it shows how easy it is to choose which variables
+you want to monitor.
+
+=head1 PLUGINS
+
+innotop has a simple but powerful plugin mechanism by which you can extend
+or modify its existing functionality, and add new functionality. innotop's
+plugin functionality is event-based: plugins register themselves to be called
+when events happen. They then have a chance to influence the event.
+
+An innotop plugin is a Perl module (.pm) file placed in innotop's L<"plugin_dir">
+directory. On UNIX systems, you can place a symbolic link to the module instead
+of putting the actual file there. innotop automatically discovers files named C<*.pm>. If
+there is a corresponding entry in the L<"plugins"> configuration file section,
+innotop loads and activates the plugin.
+
+The module must conform to innotop's plugin interface. Additionally, the source
+code of the module must be written in such a way that innotop can inspect the
+file and determine the package name and description.
+
+=head2 Package Source Convention
+
+innotop inspects the plugin module's source to determine the Perl package name.
+It looks for a line of the form "package Foo;" and if found, considers the
+plugin's package name to be Foo. Of course the package name can be a valid Perl
+package name such as Foo::Bar, with double colons (::) and so on.
+
+It also looks for a description in the source code, to make the plugin editor
+more human-friendly. The description is a comment line of the form "#
+description: Foo", where "Foo" is the text innotop will consider to be the
+plugin's description.
+
+=head2 Plugin Interface
+
+The innotop plugin interface is quite simple: innotop expects the plugin to be
+an object-oriented module it can call certain methods on. The methods are
+
+=over
+
+=item new(%variables)
+
+This is the plugin's constructor. It is passed a hash of innotop's variables,
+which it can manipulate (see L<"Plugin Variables">). It must return a reference
+to the newly created plugin object.
+
+At construction time, innotop has only loaded the general configuration and
+created the default built-in variables with their default contents (which is
+quite a lot). Therefore, the state of the program is exactly as in the innotop
+source code, plus the configuration variables from the L<"general"> section in
+the config file.
+
+If your plugin manipulates the variables, it is changing global data, which is
+shared by innotop and all plugins. Plugins are loaded in the order they're
+listed in the config file. Your plugin may load before or after another plugin,
+so there is a potential for conflict or interaction between plugins if they
+modify data other plugins use or modify.
+
+=item register_for_events()
+
+This method must return a list of events in which the plugin is interested, if
+any. See L<"Plugin Events"> for the defined events. If the plugin returns an
+event that's not defined, the event is ignored.
+
+=item event handlers
+
+The plugin must implement a method named the same as each event for which it has
+registered. In other words, if the plugin returns qw(foo bar) from
+register_for_events(), it must have foo() and bar() methods. These methods are
+callbacks for the events. See L<"Plugin Events"> for more details about each
+event.
+
+=back
+
+=head2 Plugin Variables
+
+The plugin's constructor is passed a hash of innotop's variables, which it can
+manipulate. It is probably a good idea if the plugin object saves a copy of it
+for later use. The variables are defined in the innotop variable
+%pluggable_vars, and are as follows:
+
+=over
+
+=item action_for
+
+A hashref of key mappings. These are innotop's global hot-keys.
+
+=item agg_funcs
+
+A hashref of functions that can be used for grouping. See L<"GROUPING">.
+
+=item config
+
+The global configuration hash.
+
+=item connections
+
+A hashref of connection specifications. These are just specifications of how to
+connect to a server.
+
+=item dbhs
+
+A hashref of innotop's database connections. These are actual DBI connection
+objects.
+
+=item filters
+
+A hashref of filters applied to table rows. See L<"FILTERS"> for more.
+
+=item modes
+
+A hashref of modes. See L<"MODES"> for more.
+
+=item server_groups
+
+A hashref of server groups. See L<"SERVER GROUPS">.
+
+=item tbl_meta
+
+A hashref of innotop's table meta-data, with one entry per table (see
+L<"TABLES"> for more information).
+
+=item trans_funcs
+
+A hashref of transformation functions. See L<"TRANSFORMATIONS">.
+
+=item var_sets
+
+A hashref of variable sets. See L<"VARIABLE SETS">.
+
+=back
+
+=head2 Plugin Events
+
+Each event is defined somewhere in the innotop source code. When innotop runs
+that code, it executes the callback function for each plugin that expressed its
+interest in the event. innotop passes some data for each event. The events are
+defined in the %event_listener_for variable, and are as follows:
+
+=over
+
+=item extract_values($set, $cur, $pre, $tbl)
+
+This event occurs inside the function that extracts values from a data source.
+The arguments are the set of values, the current values, the previous values,
+and the table name.
+
+=item set_to_tbl
+
+Events are defined at many places in this subroutine, which is responsible for
+turning an arrayref of hashrefs into an arrayref of lines that can be printed to
+the screen. The events all pass the same data: an arrayref of rows and the name
+of the table being created. The events are set_to_tbl_pre_filter,
+set_to_tbl_pre_sort,set_to_tbl_pre_group, set_to_tbl_pre_colorize,
+set_to_tbl_pre_transform, set_to_tbl_pre_pivot, set_to_tbl_pre_create,
+set_to_tbl_post_create.
+
+=item draw_screen($lines)
+
+This event occurs inside the subroutine that prints the lines to the screen.
+$lines is an arrayref of strings.
+
+=back
+
+=head2 Simple Plugin Example
+
+The easiest way to explain the plugin functionality is probably with a simple
+example. The following module adds a column to the beginning of every table and
+sets its value to 1. (If you copy and paste this example code, be sure to remove
+the first space from each line; lines such as '# description' must not start with
+whitespace).
+
+ use strict;
+ use warnings FATAL => 'all';
+
+ package Innotop::Plugin::Example;
+ # description: Adds an 'example' column to every table
+
+ sub new {
+ my ( $class, %vars ) = @_;
+ # Store reference to innotop's variables in $self
+ my $self = bless { %vars }, $class;
+
+ # Design the example column
+ my $col = {
+ hdr => 'Example',
+ just => '',
+ dec => 0,
+ num => 1,
+ label => 'Example',
+ src => 'example', # Get data from this column in the data source
+ tbl => '',
+ trans => [],
+ };
+
+ # Add the column to every table.
+ my $tbl_meta = $vars{tbl_meta};
+ foreach my $tbl ( values %$tbl_meta ) {
+ # Add the column to the list of defined columns
+ $tbl->{cols}->{example} = $col;
+ # Add the column to the list of visible columns
+ unshift @{$tbl->{visible}}, 'example';
+ }
+
+ # Be sure to return a reference to the object.
+ return $self;
+ }
+
+ # I'd like to be called when a data set is being rendered into a table, please.
+ sub register_for_events {
+ my ( $self ) = @_;
+ return qw(set_to_tbl_pre_filter);
+ }
+
+ # This method will be called when the event fires.
+ sub set_to_tbl_pre_filter {
+ my ( $self, $rows, $tbl ) = @_;
+ # Set the example column's data source to the value 1.
+ foreach my $row ( @$rows ) {
+ $row->{example} = 1;
+ }
+ }
+
+ 1;
+
+=head2 Plugin Editor
+
+The plugin editor lets you view the plugins innotop discovered and activate or
+deactivate them. Start the editor by pressing $ to start the configuration
+editor from any mode. Press the 'p' key to start the plugin editor. You'll see
+a list of plugins innotop discovered. You can use the 'j' and 'k' keys to move
+the highlight to the desired one, then press the * key to toggle it active or
+inactive. Exit the editor and restart innotop for the changes to take effect.
+
+=head1 SQL STATEMENTS
+
+innotop uses a limited set of SQL statements to retrieve data from MySQL for
+display. The statements are customized depending on the server version against
+which they are executed; for example, on MySQL 5 and newer, INNODB_STATUS
+executes "SHOW ENGINE INNODB STATUS", while on earlier versions it executes
+"SHOW INNODB STATUS". The statements are as follows:
+
+ Statement SQL executed
+ =================== ===============================
+ INDEX_STATISTICS SELECT * FROM INFORMATION_SCHEMA.INDEX_STATISTICS
+ INNODB_STATUS SHOW [ENGINE] INNODB STATUS
+ KILL_CONNECTION KILL
+ KILL_QUERY KILL QUERY
+ OPEN_TABLES SHOW OPEN TABLES
+ PROCESSLIST SHOW FULL PROCESSLIST
+ SHOW_MASTER_LOGS SHOW MASTER LOGS
+ SHOW_MASTER_STATUS SHOW MASTER STATUS
+ SHOW_SLAVE_STATUS SHOW SLAVE STATUS
+ SHOW_STATUS SHOW [GLOBAL] STATUS
+ SHOW_VARIABLES SHOW [GLOBAL] VARIABLES
+ TABLE_STATISTICS SELECT * FROM INFORMATION_SCHEMA.TABLE_STATISTICS
+
+=head1 DATA SOURCES
+
+Each time innotop extracts values to create a table (see L<"EXPRESSIONS"> and
+L<"TABLES">), it does so from a particular data source. Largely because of the
+complex data extracted from SHOW INNODB STATUS, this is slightly messy. SHOW
+INNODB STATUS contains a mixture of single values and repeated values that form
+nested data sets.
+
+Whenever innotop fetches data from MySQL, it adds two extra bits to each set:
+cxn and Uptime_hires. cxn is the name of the connection from which the data
+came. Uptime_hires is a high-resolution version of the server's Uptime status
+variable, which is important if your L<"interval"> setting is sub-second.
+
+Here are the kinds of data sources from which data is extracted:
+
+=over
+
+=item STATUS_VARIABLES
+
+This is the broadest category, into which the most kinds of data fall. It
+begins with the combination of SHOW STATUS and SHOW VARIABLES, but other sources
+may be included as needed, for example, SHOW MASTER STATUS and SHOW SLAVE
+STATUS, as well as many of the non-repeated values from SHOW INNODB STATUS.
+
+=item DEADLOCK_LOCKS
+
+This data is extracted from the transaction list in the LATEST DETECTED DEADLOCK
+section of SHOW INNODB STATUS. It is nested two levels deep: transactions, then
+locks.
+
+=item DEADLOCK_TRANSACTIONS
+
+This data is from the transaction list in the LATEST DETECTED DEADLOCK
+section of SHOW INNODB STATUS. It is nested one level deep.
+
+=item EXPLAIN
+
+This data is from the result set returned by EXPLAIN.
+
+=item INNODB_BLOCKED_BLOCKER
+
+This data is from the INFORMATION_SCHEMA tables related to InnoDB locks and
+the processlist.
+
+=item INNODB_TRANSACTIONS
+
+This data is from the TRANSACTIONS section of SHOW INNODB STATUS.
+
+=item IO_THREADS
+
+This data is from the list of threads in the the FILE I/O section of SHOW INNODB
+STATUS.
+
+=item INNODB_LOCKS
+
+This data is from the TRANSACTIONS section of SHOW INNODB STATUS and is nested
+two levels deep.
+
+=item MASTER_SLAVE
+
+This data is from the combination of SHOW MASTER STATUS and SHOW SLAVE STATUS.
+
+=item OPEN_TABLES
+
+This data is from SHOW OPEN TABLES.
+
+=item PROCESSLIST
+
+This data is from SHOW FULL PROCESSLIST.
+
+=item PROCESSLIST_STATS
+
+This data is from SHOW FULL PROCESSLIST and computes stats such as the maximum time
+a user query has been running, and how many user queries are running. A "user
+query" excludes replication threads.
+
+=item OS_WAIT_ARRAY
+
+This data is from the SEMAPHORES section of SHOW INNODB STATUS and is nested one
+level deep. It comes from the lines that look like this:
+
+ --Thread 1568861104 has waited at btr0cur.c line 424 ....
+
+=back
+
+=head1 MYSQL PRIVILEGES
+
+=over
+
+=item *
+
+You must connect to MySQL as a user who has the SUPER privilege for many of the
+functions.
+
+=item *
+
+If you don't have the SUPER privilege, you can still run some functions, but you
+won't necessarily see all the same data.
+
+=item *
+
+You need the PROCESS privilege to see the list of currently running queries in Q
+mode.
+
+=item *
+
+You need special privileges to start and stop slave servers.
+
+=item *
+
+You need appropriate privileges to create and drop the deadlock tables if needed
+(see L<"SERVER CONNECTIONS">).
+
+=back
+
+=head1 SYSTEM REQUIREMENTS
+
+You need Perl to run innotop, of course. You also need a few Perl modules: DBI,
+DBD::mysql, Term::ReadKey, and Time::HiRes. These should be included with most
+Perl distributions, but in case they are not, I recommend using versions
+distributed with your operating system or Perl distribution, not from CPAN.
+Term::ReadKey in particular has been known to cause problems if installed from
+CPAN.
+
+If you have Term::ANSIColor, innotop will use it to format headers more readably
+and compactly. (Under Microsoft Windows, you also need Win32::Console::ANSI for
+terminal formatting codes to be honored). If you install Term::ReadLine,
+preferably Term::ReadLine::Gnu, you'll get nice auto-completion support.
+
+I run innotop on Gentoo GNU/Linux, Debian and Ubuntu, and I've had feedback from
+people successfully running it on Red Hat, CentOS, Solaris, and Mac OSX. I
+don't see any reason why it won't work on other UNIX-ish operating systems, but
+I don't know for sure. It also runs on Windows under ActivePerl without
+problem.
+
+innotop has been used on MySQL versions 3.23.58, 4.0.27, 4.1.0, 4.1.22, 5.0.26,
+5.1.15, and 5.2.3. If it doesn't run correctly for you, that is a bug that
+should be reported.
+
+=head1 FILES
+
+$HOMEDIR/.innotop and/or /etc/innotop are used to store
+configuration information. Files include the configuration file innotop.conf,
+the core_dump file which contains verbose error messages if L<"debug"> is
+enabled, and the plugins/ subdirectory.
+
+=head1 GLOSSARY OF TERMS
+
+=over
+
+=item tick
+
+A tick is a refresh event, when innotop re-fetches data from connections and
+displays it.
+
+=back
+
+=head1 ACKNOWLEDGEMENTS
+
+The following people and organizations are acknowledged for various reasons.
+Hopefully no one has been forgotten.
+
+Aaron Racine,
+Allen K. Smith,
+Aurimas Mikalauskas,
+Bartosz Fenski,
+Brian Miezejewski,
+Christian Hammers,
+Cyril Scetbon,
+Dane Miller,
+David Multer,
+Dr. Frank Ullrich,
+Giuseppe Maxia,
+Google.com Site Reliability Engineers,
+Google Code,
+Jan Pieter Kunst,
+Jari Aalto,
+Jay Pipes,
+Jeremy Zawodny,
+Johan Idren,
+Kristian Kohntopp,
+Lenz Grimmer,
+Maciej Dobrzanski,
+Michiel Betel,
+MySQL AB,
+Paul McCullagh,
+Sebastien Estienne,
+Sourceforge.net,
+Steven Kreuzer,
+The Gentoo MySQL Team,
+Trevor Price,
+Yaar Schnitman,
+and probably more people that have not been included.
+
+(If your name has been misspelled, it's probably out of fear of putting
+international characters into this documentation; earlier versions of Perl might
+not be able to compile it then).
+
+=head1 COPYRIGHT, LICENSE AND WARRANTY
+
+This program is copyright (c) 2006 Baron Schwartz.
+Feedback and improvements are welcome.
+
+THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
+systems, you can issue `man perlgpl' or `man perlartistic' to read these
+licenses.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA.
+
+Execute innotop and press '!' to see this information at any time.
+
+=head1 AUTHOR
+
+Originally written by Baron Schwartz; currently maintained by Aaron Racine.
+
+=head1 BUGS
+
+You can report bugs, ask for improvements, and get other help and support at
+L<https://github.com/innotop/innotop>. There are mailing lists, a source code
+browser, a bug tracker, etc. Please use these instead of contacting the
+maintainer or author directly, as it makes our job easier and benefits others if the
+discussions are permanent and public. Of course, if you need to contact us in
+private, please do.
+
+=cut
diff --git a/debian/additions/innotop/innotop.1 b/debian/additions/innotop/innotop.1
new file mode 100644
index 0000000..7cd275a
--- /dev/null
+++ b/debian/additions/innotop/innotop.1
@@ -0,0 +1,2200 @@
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+.\" ========================================================================
+.\"
+.IX Title "INNOTOP 1"
+.TH INNOTOP 1 "2017-01-23" "perl v5.20.2" "User Contributed Perl Documentation"
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH "NAME"
+innotop \- MySQL and InnoDB transaction/status monitor.
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+To monitor servers normally:
+.PP
+.Vb 1
+\& innotop
+.Ve
+.PP
+To monitor InnoDB status information from a file:
+.PP
+.Vb 1
+\& innotop /var/log/mysql/mysqld.err
+.Ve
+.PP
+To run innotop non-interactively in a pipe-and-filter configuration:
+.PP
+.Vb 1
+\& innotop \-\-count 5 \-d 1 \-n
+.Ve
+.PP
+To monitor a database on another system using a particular username and password:
+.PP
+.Vb 1
+\& innotop \-u <username> \-p <password> \-h <hostname>
+.Ve
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+innotop monitors MySQL servers. Each of its modes shows you a different aspect
+of what's happening in the server. For example, there's a mode for monitoring
+replication, one for queries, and one for transactions. innotop refreshes its
+data periodically, so you see an updating view.
+.PP
+innotop has lots of features for power users, but you can start and run it with
+virtually no configuration. If you're just getting started, see
+\&\*(L"QUICK-START\*(R". Press '?' at any time while running innotop for
+context-sensitive help.
+.SH "QUICK-START"
+.IX Header "QUICK-START"
+To start innotop, open a terminal or command prompt. If you have installed
+innotop on your system, you should be able to just type \*(L"innotop\*(R" and press
+Enter; otherwise, you will need to change to innotop's directory and type \*(L"perl
+innotop\*(R".
+.PP
+With no options specified, innotop will attempt to connect to a MySQL server on
+localhost using mysql_read_default_group=client for other connection
+parameters. If you need to specify a different username and password, use the
+\&\-u and \-p options, respectively. To monitor a MySQL database on another
+host, use the \-h option.
+.PP
+After you've connected, innotop should show you something like the following:
+.PP
+.Vb 1
+\& [RO] Query List (? for help) localhost, 01:11:19, 449.44 QPS, 14/7/163 con/run
+\&
+\& CXN When Load QPS Slow QCacheHit KCacheHit BpsIn BpsOut
+\& localhost Total 0.00 1.07k 697 0.00% 98.17% 476.83k 242.83k
+\&
+\& CXN Cmd ID User Host DB Time Query
+\& localhost Query 766446598 test 10.0.0.1 foo 00:02 INSERT INTO table (
+.Ve
+.PP
+(This sample is truncated at the right so it will fit on a terminal when running
+\&'man innotop')
+.PP
+If your server is busy, you'll see more output. Notice the first line on the
+screen, which tells you that readonly is set to true ([\s-1RO\s0]), what mode you're
+in and what server you're connected to. You can change to other modes with
+keystrokes; press 'T' to switch to a list of InnoDB transactions, for example.
+.PP
+Press the '?' key to see what keys are active in the current mode. You can
+press any of these keys and innotop will either take the requested action or
+prompt you for more input. If your system has Term::ReadLine support, you can
+use \s-1TAB\s0 and other keys to auto-complete and edit input.
+.PP
+To quit innotop, press the 'q' key.
+.SH "OPTIONS"
+.IX Header "OPTIONS"
+innotop is mostly configured via its configuration file, but some of the
+configuration options can come from the command line. You can also specify a
+file to monitor for InnoDB status output; see \*(L"\s-1MONITORING A FILE\*(R"\s0 for more
+details.
+.PP
+You can negate some options by prefixing the option name with \-\-no. For
+example, \-\-noinc (or \-\-no\-inc) negates \*(L"\-\-inc\*(R".
+.IP "\-\-color" 4
+.IX Item "--color"
+Enable or disable terminal coloring. Corresponds to the \*(L"color\*(R" config file
+setting.
+.IP "\-\-config" 4
+.IX Item "--config"
+Specifies a configuration file to read. This option is non-sticky, that is to
+say it does not persist to the configuration file itself.
+.IP "\-\-count" 4
+.IX Item "--count"
+Refresh only the specified number of times (ticks) before exiting. Each refresh
+is a pause for \*(L"interval\*(R" seconds, followed by requesting data from MySQL
+connections and printing it to the terminal.
+.IP "\-\-delay" 4
+.IX Item "--delay"
+Specifies the amount of time to pause between ticks (refreshes). Corresponds to
+the configuration option \*(L"interval\*(R".
+.IP "\-\-help" 4
+.IX Item "--help"
+Print a summary of command-line usage and exit.
+.IP "\-\-host" 4
+.IX Item "--host"
+Host to connect to.
+.IP "\-\-inc" 4
+.IX Item "--inc"
+Specifies whether innotop should display absolute numbers or relative numbers
+(offsets from their previous values). Corresponds to the configuration option
+\&\*(L"status_inc\*(R".
+.IP "\-\-mode" 4
+.IX Item "--mode"
+Specifies the mode in which innotop should start. Corresponds to the
+configuration option \*(L"mode\*(R".
+.IP "\-\-nonint" 4
+.IX Item "--nonint"
+Enable non-interactive operation. See \*(L"NON-INTERACTIVE \s-1OPERATION\*(R"\s0 for more.
+.IP "\-\-password" 4
+.IX Item "--password"
+Password to use for connection.
+.IP "\-\-port" 4
+.IX Item "--port"
+Port to use for connection.
+.IP "\-\-skipcentral" 4
+.IX Item "--skipcentral"
+Don't read the central configuration file.
+.IP "\-\-timestamp" 4
+.IX Item "--timestamp"
+In \-n mode, write a timestamp either before every screenful of output, or if
+the option is given twice, at the start of every line. The format is controlled
+by the timeformat config variable.
+.IP "\-\-user" 4
+.IX Item "--user"
+User to use for connection.
+.IP "\-\-version" 4
+.IX Item "--version"
+Output version information and exit.
+.IP "\-\-write" 4
+.IX Item "--write"
+Sets the configuration option \*(L"readonly\*(R" to 0, making innotop write the
+running configuration to ~/.innotop/innotop.conf on exit, if no configuration
+file was loaded at start-up.
+.SH "HOTKEYS"
+.IX Header "HOTKEYS"
+innotop is interactive, and you control it with key-presses.
+.IP "\(bu" 4
+Uppercase keys switch between modes.
+.IP "\(bu" 4
+Lowercase keys initiate some action within the current mode.
+.IP "\(bu" 4
+Other keys do something special like change configuration or show the
+innotop license.
+.PP
+Press '?' at any time to see the currently active keys and what they do.
+.SH "MODES"
+.IX Header "MODES"
+Each of innotop's modes retrieves and displays a particular type of data from
+the servers you're monitoring. You switch between modes with uppercase keys.
+The following is a brief description of each mode, in alphabetical order. To
+switch to the mode, press the key listed in front of its heading in the
+following list:
+.IP "A: Health Dashboard" 4
+.IX Item "A: Health Dashboard"
+This mode displays a single table with one row per monitored server. The
+columns show essential overview information about the server's health, and
+coloration rules show whether replication is running or if there are any very
+long-running queries or excessive replication delay.
+.IP "B: InnoDB Buffers" 4
+.IX Item "B: InnoDB Buffers"
+This mode displays information about the InnoDB buffer pool, page statistics,
+insert buffer, and adaptive hash index. The data comes from \s-1SHOW INNODB STATUS.\s0
+.Sp
+This mode contains the \*(L"buffer_pool\*(R", \*(L"page_statistics\*(R",
+\&\*(L"insert_buffers\*(R", and \*(L"adaptive_hash_index\*(R" tables by default.
+.IP "C: Command Summary" 4
+.IX Item "C: Command Summary"
+This mode is similar to mytop's Command Summary mode. It shows the
+\&\*(L"cmd_summary\*(R" table, which looks something like the following:
+.Sp
+.Vb 8
+\& Command Summary (? for help) localhost, 25+07:16:43, 2.45 QPS, 3 thd, 5.0.40
+\& _\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_ Command Summary _\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_
+\& Name Value Pct Last Incr Pct
+\& Select_scan 3244858 69.89% 2 100.00%
+\& Select_range 1354177 29.17% 0 0.00%
+\& Select_full_join 39479 0.85% 0 0.00%
+\& Select_full_range_join 4097 0.09% 0 0.00%
+\& Select_range_check 0 0.00% 0 0.00%
+.Ve
+.Sp
+The command summary table is built by extracting variables from
+\&\*(L"\s-1STATUS_VARIABLES\*(R"\s0. The variables must be numeric and must match the prefix
+given by the \*(L"cmd_filter\*(R" configuration variable. The variables are then
+sorted by value descending and compared to the last variable, as shown above.
+The percentage columns are percentage of the total of all variables in the
+table, so you can see the relative weight of the variables.
+.Sp
+The example shows what you see if the prefix is \*(L"Select_\*(R". The default
+prefix is \*(L"Com_\*(R". You can choose a prefix with the 's' key.
+.Sp
+It's rather like running \s-1SHOW VARIABLES LIKE \s0\*(L"prefix%\*(R" with memory and
+nice formatting.
+.Sp
+Values are aggregated across all servers. The Pct columns are not correctly
+aggregated across multiple servers. This is a known limitation of the grouping
+algorithm that may be fixed in the future.
+.IP "D: InnoDB Deadlocks" 4
+.IX Item "D: InnoDB Deadlocks"
+This mode shows the transactions involved in the last InnoDB deadlock. A second
+table shows the locks each transaction held and waited for. A deadlock is
+caused by a cycle in the waits-for graph, so there should be two locks held and
+one waited for unless the deadlock information is truncated.
+.Sp
+InnoDB puts deadlock information before some other information in the \s-1SHOW
+INNODB STATUS\s0 output. If there are a lot of locks, the deadlock information can
+grow very large, and there is a limit on the size of the \s-1SHOW INNODB
+STATUS\s0 output. A large deadlock can fill the entire output, or even be
+truncated, and prevent you from seeing other information at all. If you are
+running innotop in another mode, for example T mode, and suddenly you don't see
+anything, you might want to check and see if a deadlock has wiped out the data
+you need.
+.Sp
+If it has, you can create a small deadlock to replace the large one. Use the
+\&'w' key to 'wipe' the large deadlock with a small one. This will not work
+unless you have defined a deadlock table for the connection (see \*(L"\s-1SERVER
+CONNECTIONS\*(R"\s0).
+.Sp
+You can also configure innotop to automatically detect when a large deadlock
+needs to be replaced with a small one (see \*(L"auto_wipe_dl\*(R").
+.Sp
+This mode displays the \*(L"deadlock_transactions\*(R" and \*(L"deadlock_locks\*(R" tables
+by default.
+.IP "F: InnoDB Foreign Key Errors" 4
+.IX Item "F: InnoDB Foreign Key Errors"
+This mode shows the last InnoDB foreign key error information, such as the
+table where it happened, when and who and what query caused it, and so on.
+.Sp
+InnoDB has a huge variety of foreign key error messages, and many of them are
+just hard to parse. innotop doesn't always do the best job here, but there's
+so much code devoted to parsing this messy, unparseable output that innotop is
+likely never to be perfect in this regard. If innotop doesn't show you what
+you need to see, just look at the status text directly.
+.Sp
+This mode displays the \*(L"fk_error\*(R" table by default.
+.IP "I: InnoDB I/O Info" 4
+.IX Item "I: InnoDB I/O Info"
+This mode shows InnoDB's I/O statistics, including the I/O threads, pending I/O,
+file I/O miscellaneous, and log statistics. It displays the \*(L"io_threads\*(R",
+\&\*(L"pending_io\*(R", \*(L"file_io_misc\*(R", and \*(L"log_statistics\*(R" tables by default.
+.IP "K: InnoDB Lock Waits" 4
+.IX Item "K: InnoDB Lock Waits"
+This mode shows information from InnoDB plugin's transaction and locking tables.
+You can use it to find when a transaction is waiting for another, and kill the
+blocking transaction. It displays the "innodb_blocked_blocker" table.
+.IP "L: Locks" 4
+.IX Item "L: Locks"
+This mode shows information about current locks. At the moment only InnoDB
+locks are supported, and by default you'll only see locks for which transactions
+are waiting. This information comes from the \s-1TRANSACTIONS\s0 section of the InnoDB
+status text. If you have a very busy server, you may have frequent lock waits;
+it helps to be able to see which tables and indexes are the \*(L"hot spot\*(R" for
+locks. If your server is running pretty well, this mode should show nothing.
+.Sp
+You can configure MySQL and innotop to monitor not only locks for which a
+transaction is waiting, but those currently held, too. You can do this with the
+InnoDB Lock Monitor (<http://dev.mysql.com/doc/en/innodb\-monitor.html>). It's
+not documented in the MySQL manual, but creating the lock monitor with the
+following statement also affects the output of \s-1SHOW INNODB STATUS,\s0 which innotop
+uses:
+.Sp
+.Vb 1
+\& CREATE TABLE innodb_lock_monitor(a int) ENGINE=INNODB;
+.Ve
+.Sp
+This causes InnoDB to print its output to the MySQL file every 16 seconds or so,
+as stated in the manual, but it also makes the normal \s-1SHOW INNODB STATUS\s0 output
+include lock information, which innotop can parse and display (that's the
+undocumented feature).
+.Sp
+This means you can do what may have seemed impossible: to a limited extent
+(InnoDB truncates some information in the output), you can see which transaction
+holds the locks something else is waiting for. You can also enable and disable
+the InnoDB Lock Monitor with the key mappings in this mode.
+.Sp
+This mode displays the \*(L"innodb_locks\*(R" table by default. Here's a sample of
+the screen when one connection is waiting for locks another connection holds:
+.Sp
+.Vb 7
+\& _\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_ InnoDB Locks _\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_\|_
+\& CXN ID Type Waiting Wait Active Mode DB Table Index
+\& localhost 12 RECORD 1 00:10 00:10 X test t1 PRIMARY
+\& localhost 12 TABLE 0 00:10 00:10 IX test t1
+\& localhost 12 RECORD 1 00:10 00:10 X test t1 PRIMARY
+\& localhost 11 TABLE 0 00:00 00:25 IX test t1
+\& localhost 11 RECORD 0 00:00 00:25 X test t1 PRIMARY
+.Ve
+.Sp
+You can see the first connection, \s-1ID 12,\s0 is waiting for a lock on the \s-1PRIMARY\s0
+key on test.t1, and has been waiting for 10 seconds. The second connection
+isn't waiting, because the Waiting column is 0, but it holds locks on the same
+index. That tells you connection 11 is blocking connection 12.
+.IP "M: Master/Slave Replication Status" 4
+.IX Item "M: Master/Slave Replication Status"
+This mode shows the output of \s-1SHOW SLAVE STATUS\s0 and \s-1SHOW MASTER STATUS\s0 in three
+tables. The first two divide the slave's status into \s-1SQL\s0 and I/O thread status,
+and the last shows master status. Filters are applied to eliminate non-slave
+servers from the slave tables, and non-master servers from the master table.
+.Sp
+This mode displays the \*(L"slave_sql_status\*(R", \*(L"slave_io_status\*(R", and
+\&\*(L"master_status\*(R" tables by default.
+.IP "O: Open Tables" 4
+.IX Item "O: Open Tables"
+This section comes from MySQL's \s-1SHOW OPEN TABLES\s0 command. By default it is
+filtered to show tables which are in use by one or more queries, so you can
+get a quick look at which tables are 'hot'. You can use this to guess which
+tables might be locked implicitly.
+.Sp
+This mode displays the \*(L"open_tables\*(R" mode by default.
+.IP "U: User Statistics" 4
+.IX Item "U: User Statistics"
+This mode displays data that's available in Percona's enhanced version of MySQL
+(also known as Percona Server with XtraDB). Specifically, it makes it easy to
+enable and disable the so-called \*(L"user statistics.\*(R" This feature gathers stats
+on clients, threads, users, tables, and indexes and makes them available as
+\&\s-1INFORMATION_SCHEMA\s0 tables. These are invaluable for understanding what your
+server is doing. They are also available in MariaDB.
+.Sp
+The statistics supported so far are only from the \s-1TABLE_STATISTICS\s0 and
+\&\s-1INDEX_STATISTICS\s0 tables added by Percona. There are three views: one of table stats,
+one of index stats (which can be aggregated with the = key), and one of both.
+.Sp
+The server doesn't gather these stats by default. You have to set the variable
+userstat_running to turn it on. You can do this easily with innotop from U mode,
+with the 's' key.
+.IP "Q: Query List" 4
+.IX Item "Q: Query List"
+This mode displays the output from \s-1SHOW FULL PROCESSLIST,\s0 much like \fBmytop\fR's
+query list mode. This mode does \fBnot\fR show InnoDB-related information. This
+is probably one of the most useful modes for general usage.
+.Sp
+There is an informative header that shows general status information about
+your server. You can toggle it on and off with the 'h' key. By default,
+innotop hides inactive processes and its own process. You can toggle these on
+and off with the 'i' and 'a' keys.
+.Sp
+You can \s-1EXPLAIN\s0 a query from this mode with the 'e' key. This displays the
+query's full text, the results of \s-1EXPLAIN,\s0 and in newer MySQL versions, even
+the optimized query resulting from \s-1EXPLAIN EXTENDED. \s0 innotop also tries to
+rewrite certain queries to make them EXPLAIN-able. For example, \s-1INSERT/SELECT\s0
+statements are rewritable.
+.Sp
+This mode displays the \*(L"q_header\*(R" and \*(L"processlist\*(R" tables by default.
+.IP "R: InnoDB Row Operations and Semaphores" 4
+.IX Item "R: InnoDB Row Operations and Semaphores"
+This mode shows InnoDB row operations, row operation miscellaneous, semaphores,
+and information from the wait array. It displays the \*(L"row_operations\*(R",
+\&\*(L"row_operation_misc\*(R", \*(L"semaphores\*(R", and \*(L"wait_array\*(R" tables by default.
+.IP "S: Variables & Status" 4
+.IX Item "S: Variables & Status"
+This mode calculates statistics, such as queries per second, and prints them out
+in several different styles. You can show absolute values, or incremental values
+between ticks.
+.Sp
+You can switch between the views by pressing a key. The 's' key prints a
+single line each time the screen updates, in the style of \fBvmstat\fR. The 'g'
+key changes the view to a graph of the same numbers, sort of like \fBtload\fR.
+The 'v' key changes the view to a pivoted table of variable names on the left,
+with successive updates scrolling across the screen from left to right. You can
+choose how many updates to put on the screen with the \*(L"num_status_sets\*(R"
+configuration variable.
+.Sp
+Headers may be abbreviated to fit on the screen in interactive operation. You
+choose which variables to display with the 'c' key, which selects from
+predefined sets, or lets you create your own sets. You can edit the current set
+with the 'e' key.
+.Sp
+This mode doesn't really display any tables like other modes. Instead, it uses
+a table definition to extract and format the data, but it then transforms the
+result in special ways before outputting it. It uses the \*(L"var_status\*(R" table
+definition for this.
+.IP "T: InnoDB Transactions" 4
+.IX Item "T: InnoDB Transactions"
+This mode shows transactions from the InnoDB monitor's output, in \fBtop\fR\-like
+format. This mode is the reason I wrote innotop.
+.Sp
+You can kill queries or processes with the 'k' and 'x' keys, and \s-1EXPLAIN\s0 a query
+with the 'e' or 'f' keys. InnoDB doesn't print the full query in transactions,
+so explaining may not work right if the query is truncated.
+.Sp
+The informational header can be toggled on and off with the 'h' key. By
+default, innotop hides inactive transactions and its own transaction. You can
+toggle this on and off with the 'i' and 'a' keys.
+.Sp
+This mode displays the \*(L"t_header\*(R" and \*(L"innodb_transactions\*(R" tables by
+default.
+.SH "INNOTOP STATUS"
+.IX Header "INNOTOP STATUS"
+The first line innotop displays is a \*(L"status bar\*(R" of sorts. What it contains
+depends on the mode you're in, and what servers you're monitoring. The first
+few words are always [\s-1RO\s0] (if readonly is set to 1), the innotop mode, such as
+\&\*(L"InnoDB Txns\*(R" for T mode, followed by a reminder to press '?' for help at any
+time.
+.SS "\s-1ONE SERVER\s0"
+.IX Subsection "ONE SERVER"
+The simplest case is when you're monitoring a single server. In this case, the
+name of the connection is next on the status line. This is the name you gave
+when you created the connection \*(-- most likely the MySQL server's hostname.
+This is followed by the server's uptime.
+.PP
+If you're in an InnoDB mode, such as T or B, the next word is \*(L"InnoDB\*(R" followed
+by some information about the \s-1SHOW INNODB STATUS\s0 output used to render the
+screen. The first word is the number of seconds since the last \s-1SHOW INNODB
+STATUS,\s0 which InnoDB uses to calculate some per-second statistics. The next is
+a smiley face indicating whether the InnoDB output is truncated. If the smiley
+face is a :\-), all is well; there is no truncation. A :^| means the transaction
+list is so long, InnoDB has only printed out some of the transactions. Finally,
+a frown :\-( means the output is incomplete, which is probably due to a deadlock
+printing too much lock information (see \*(L"D: InnoDB Deadlocks\*(R").
+.PP
+The next two words indicate the server's queries per second (\s-1QPS\s0) and how many
+threads (connections) exist. Finally, the server's version number is the last
+thing on the line.
+.SS "\s-1MULTIPLE SERVERS\s0"
+.IX Subsection "MULTIPLE SERVERS"
+If you are monitoring multiple servers (see \*(L"\s-1SERVER CONNECTIONS\*(R"\s0), the status
+line does not show any details about individual servers. Instead, it shows the
+names of the connections that are active. Again, these are connection names you
+specified, which are likely to be the server's hostname. A connection that has
+an error is prefixed with an exclamation point.
+.PP
+If you are monitoring a group of servers (see \*(L"\s-1SERVER GROUPS\*(R"\s0), the status
+line shows the name of the group. If any connection in the group has an
+error, the group's name is followed by the fraction of the connections that
+don't have errors.
+.PP
+See \*(L"\s-1ERROR HANDLING\*(R"\s0 for more details about innotop's error handling.
+.SS "\s-1MONITORING A FILE\s0"
+.IX Subsection "MONITORING A FILE"
+If you give a filename on the command line, innotop will not connect to \s-1ANY\s0
+servers at all. It will watch the specified file for InnoDB status output and
+use that as its data source. It will always show a single connection called
+\&'file'. And since it can't connect to a server, it can't determine how long the
+server it's monitoring has been up; so it calculates the server's uptime as time
+since innotop started running.
+.SH "SERVER ADMINISTRATION"
+.IX Header "SERVER ADMINISTRATION"
+While innotop is primarily a monitor that lets you watch and analyze your
+servers, it can also send commands to servers. The most frequently useful
+commands are killing queries and stopping or starting slaves.
+.PP
+You can kill a connection, or in newer versions of MySQL kill a query but not a
+connection, from \*(L"Q: Query List\*(R" and \*(L"T: InnoDB Transactions\*(R" modes.
+Press 'k' to issue a \s-1KILL\s0 command, or 'x' to issue a \s-1KILL QUERY\s0 command.
+innotop will prompt you for the server and/or connection \s-1ID\s0 to kill (innotop
+does not prompt you if there is only one possible choice for any input).
+innotop pre-selects the longest-running query, or the oldest connection.
+Confirm the command with 'y'.
+.PP
+In \*(L"Slave Replication Status\*(R"\*(L" in \*(R"M: Master mode, you can start and stop slaves
+with the 'a' and 'o' keys, respectively. You can send these commands to many
+slaves at once. innotop fills in a default command of \s-1START SLAVE\s0 or \s-1STOP SLAVE\s0
+for you, but you can actually edit the command and send anything you wish, such
+as \s-1SET GLOBAL\s0 SQL_SLAVE_SKIP_COUNTER=1 to make the slave skip one binlog event
+when it starts.
+.PP
+You can also ask innotop to calculate the earliest binlog in use by any slave
+and issue a \s-1PURGE MASTER LOGS\s0 on the master. Use the 'b' key for this. innotop
+will prompt you for a master to run the command on, then prompt you for the
+connection names of that master's slaves (there is no way for innotop to
+determine this reliably itself). innotop will find the minimum binlog in use by
+these slave connections and suggest it as the argument to \s-1PURGE MASTER LOGS.\s0
+.PP
+in \*(L"U: User Statistics\*(R" mode, you can use the 's' key to start and stop
+the collection of the statistics data for \s-1TABLE_STATISTICS\s0 and similar.
+.SH "SERVER CONNECTIONS"
+.IX Header "SERVER CONNECTIONS"
+When you create a server connection using '@', innotop asks you for a series of
+inputs, as follows:
+.IP "\s-1DSN\s0" 4
+.IX Item "DSN"
+A \s-1DSN\s0 is a Data Source Name, which is the initial argument passed to the \s-1DBI\s0
+module for connecting to a server. It is usually of the form
+.Sp
+.Vb 1
+\& DBI:mysql:;mysql_read_default_group=mysql;host=HOSTNAME
+.Ve
+.Sp
+Since this \s-1DSN\s0 is passed to the DBD::mysql driver, you should read the driver's
+documentation at \*(L"/search.cpan.org/dist/DBD\-mysql/lib/DBD/mysql.pm\*(R"\*(L" in \*(R"http: for
+the exact details on all the options you can pass the driver in the \s-1DSN. \s0 You
+can read more about \s-1DBI\s0 at <http://dbi.perl.org/docs/>, and especially at
+<http://search.cpan.org/~timb/DBI/DBI.pm>.
+.Sp
+The mysql_read_default_group=mysql option lets the \s-1DBD\s0 driver read your MySQL
+options files, such as ~/.my.cnf on UNIX-ish systems. You can use this to avoid
+specifying a username or password for the connection.
+.IP "InnoDB Deadlock Table" 4
+.IX Item "InnoDB Deadlock Table"
+This optional item tells innotop a table name it can use to deliberately create
+a small deadlock (see \*(L"D: InnoDB Deadlocks\*(R"). If you specify this option,
+you just need to be sure the table doesn't exist, and that innotop can create
+and drop the table with the InnoDB storage engine. You can safely omit or just
+accept the default if you don't intend to use this.
+.IP "Username" 4
+.IX Item "Username"
+innotop will ask you if you want to specify a username. If you say 'y', it will
+then prompt you for a user name. If you have a MySQL option file that specifies
+your username, you don't have to specify a username.
+.Sp
+The username defaults to your login name on the system you're running innotop on.
+.IP "Password" 4
+.IX Item "Password"
+innotop will ask you if you want to specify a password. Like the username, the
+password is optional, but there's an additional prompt that asks if you want to
+save the password in the innotop configuration file. If you don't save it in
+the configuration file, innotop will prompt you for a password each time it
+starts. Passwords in the innotop configuration file are saved in plain text,
+not encrypted in any way.
+.PP
+Once you finish answering these questions, you should be connected to a server.
+But innotop isn't limited to monitoring a single server; you can define many
+server connections and switch between them by pressing the '@' key. See
+\&\*(L"\s-1SWITCHING BETWEEN CONNECTIONS\*(R"\s0.
+.SH "SERVER GROUPS"
+.IX Header "SERVER GROUPS"
+If you have multiple MySQL instances, you can put them into named groups, such
+as 'all', 'masters', and 'slaves', which innotop can monitor all together.
+.PP
+You can choose which group to monitor with the '#' key, and you can press the
+\&\s-1TAB\s0 key to switch to the next group. If you're not currently monitoring a
+group, pressing \s-1TAB\s0 selects the first group.
+.PP
+To create a group, press the '#' key and type the name of your new group, then
+type the names of the connections you want the group to contain.
+.SH "SWITCHING BETWEEN CONNECTIONS"
+.IX Header "SWITCHING BETWEEN CONNECTIONS"
+innotop lets you quickly switch which servers you're monitoring. The most basic
+way is by pressing the '@' key and typing the name(s) of the connection(s) you
+want to use. This setting is per-mode, so you can monitor different connections
+in each mode, and innotop remembers which connections you choose.
+.PP
+You can quickly switch to the 'next' connection in alphabetical order with the
+\&'n' key. If you're monitoring a server group (see \*(L"\s-1SERVER GROUPS\*(R"\s0) this will
+switch to the first connection.
+.PP
+You can also type many connection names, and innotop will fetch and display data
+from them all. Just separate the connection names with spaces, for example
+\&\*(L"server1 server2.\*(R" Again, if you type the name of a connection that doesn't
+exist, innotop will prompt you for connection information and create the
+connection.
+.PP
+Another way to monitor multiple connections at once is with server groups. You
+can use the \s-1TAB\s0 key to switch to the 'next' group in alphabetical order, or if
+you're not monitoring any groups, \s-1TAB\s0 will switch to the first group.
+.PP
+innotop does not fetch data in parallel from connections, so if you are
+monitoring a large group or many connections, you may notice increased delay
+between ticks.
+.PP
+When you monitor more than one connection, innotop's status bar changes. See
+\&\*(L"\s-1INNOTOP STATUS\*(R"\s0.
+.SH "ERROR HANDLING"
+.IX Header "ERROR HANDLING"
+Error handling is not that important when monitoring a single connection, but is
+crucial when you have many active connections. A crashed server or lost
+connection should not crash innotop. As a result, innotop will continue to run
+even when there is an error; it just won't display any information from the
+connection that had an error. Because of this, innotop's behavior might confuse
+you. It's a feature, not a bug!
+.PP
+innotop does not continue to query connections that have errors, because they
+may slow innotop and make it hard to use, especially if the error is a problem
+connecting and causes a long time-out. Instead, innotop retries the connection
+occasionally to see if the error still exists. If so, it will wait until some
+point in the future. The wait time increases in ticks as the Fibonacci series,
+so it tries less frequently as time passes.
+.PP
+Since errors might only happen in certain modes because of the \s-1SQL\s0 commands
+issued in those modes, innotop keeps track of which mode caused the error. If
+you switch to a different mode, innotop will retry the connection instead of
+waiting.
+.PP
+By default innotop will display the problem in red text at the bottom of the
+first table on the screen. You can disable this behavior with the
+\&\*(L"show_cxn_errors_in_tbl\*(R" configuration option, which is enabled by default.
+If the \*(L"debug\*(R" option is enabled, innotop will display the error at the
+bottom of every table, not just the first. And if \*(L"show_cxn_errors\*(R" is
+enabled, innotop will print the error text to \s-1STDOUT\s0 as well. Error messages
+might only display in the mode that caused the error, depending on the mode and
+whether innotop is avoiding querying that connection.
+.SH "NON-INTERACTIVE OPERATION"
+.IX Header "NON-INTERACTIVE OPERATION"
+You can run innotop in non-interactive mode, in which case it is entirely
+controlled from the configuration file and command-line options. To start
+innotop in non-interactive mode, give the L\*(L"<\-\-nonint\*(R"> command-line option.
+This changes innotop's behavior in the following ways:
+.IP "\(bu" 4
+Certain Perl modules are not loaded. Term::Readline is not loaded, since
+innotop doesn't prompt interactively. Term::ANSIColor and Win32::Console::ANSI
+modules are not loaded. Term::ReadKey is still used, since innotop may have to
+prompt for connection passwords when starting up.
+.IP "\(bu" 4
+innotop does not clear the screen after each tick.
+.IP "\(bu" 4
+innotop does not persist any changes to the configuration file.
+.IP "\(bu" 4
+If \*(L"\-\-count\*(R" is given and innotop is in incremental mode (see \*(L"status_inc\*(R"
+and \*(L"\-\-inc\*(R"), innotop actually refreshes one more time than specified so it
+can print incremental statistics. This suppresses output during the first
+tick, so innotop may appear to hang.
+.IP "\(bu" 4
+innotop only displays the first table in each mode. This is so the output can
+be easily processed with other command-line utilities such as awk and sed. To
+change which tables display in each mode, see \*(L"\s-1TABLES\*(R"\s0. Since \*(L"Q: Query
+List\*(R" mode is so important, innotop automatically disables the \*(L"q_header\*(R"
+table. This ensures you'll see the \*(L"processlist\*(R" table, even if you have
+innotop configured to show the q_header table during interactive operation.
+Similarly, in \*(L"T: InnoDB Transactions\*(R" mode, the \*(L"t_header\*(R" table is
+suppressed so you see only the \*(L"innodb_transactions\*(R" table.
+.IP "\(bu" 4
+All output is tab-separated instead of being column-aligned with whitespace, and
+innotop prints the full contents of each table instead of only printing one
+screenful at a time.
+.IP "\(bu" 4
+innotop only prints column headers once instead of every tick (see
+\&\*(L"hide_hdr\*(R"). innotop does not print table captions (see
+\&\*(L"display_table_captions\*(R"). innotop ensures there are no empty lines in the
+output.
+.IP "\(bu" 4
+innotop does not honor the \*(L"shorten\*(R" transformation, which normally shortens
+some numbers to human-readable formats.
+.IP "\(bu" 4
+innotop does not print a status line (see \*(L"\s-1INNOTOP STATUS\*(R"\s0).
+.SH "CONFIGURING"
+.IX Header "CONFIGURING"
+Nearly everything about innotop is configurable. Most things are possible to
+change with built-in commands, but you can also edit the configuration file.
+.PP
+While running innotop, press the '$' key to bring up the configuration editing
+dialog. Press another key to select the type of data you want to edit:
+.IP "S: Statement Sleep Times" 4
+.IX Item "S: Statement Sleep Times"
+Edits \s-1SQL\s0 statement sleep delays, which make innotop pause for the specified
+amount of time after executing a statement. See \*(L"\s-1SQL STATEMENTS\*(R"\s0 for a
+definition of each statement and what it does. By default innotop does not
+delay after any statements.
+.Sp
+This feature is included so you can customize the side-effects caused by
+monitoring your server. You may not see any effects, but some innotop users
+have noticed that certain MySQL versions under very high load with InnoDB
+enabled take longer than usual to execute \s-1SHOW GLOBAL STATUS. \s0 If innotop calls
+\&\s-1SHOW FULL PROCESSLIST\s0 immediately afterward, the processlist contains more
+queries than the machine actually averages at any given moment. Configuring
+innotop to pause briefly after calling \s-1SHOW GLOBAL STATUS\s0 alleviates this
+effect.
+.Sp
+Sleep times are stored in the \*(L"stmt_sleep_times\*(R" section of the configuration
+file. Fractional-second sleeps are supported, subject to your hardware's
+limitations.
+.IP "c: Edit Columns" 4
+.IX Item "c: Edit Columns"
+Starts the table editor on one of the displayed tables. See \*(L"\s-1TABLE EDITOR\*(R"\s0.
+An alternative way to start the table editor without entering the configuration
+dialog is with the '^' key.
+.IP "g: General Configuration" 4
+.IX Item "g: General Configuration"
+Starts the configuration editor to edit global and mode-specific configuration
+variables (see \*(L"\s-1MODES\*(R"\s0). innotop prompts you to choose a variable from among
+the global and mode-specific ones depending on the current mode.
+.IP "k: Row-Coloring Rules" 4
+.IX Item "k: Row-Coloring Rules"
+Starts the row-coloring rules editor on one of the displayed table(s). See
+\&\*(L"\s-1COLORS\*(R"\s0 for details.
+.IP "p: Manage Plugins" 4
+.IX Item "p: Manage Plugins"
+Starts the plugin configuration editor. See \*(L"\s-1PLUGINS\*(R"\s0 for details.
+.IP "s: Server Groups" 4
+.IX Item "s: Server Groups"
+Lets you create and edit server groups. See \*(L"\s-1SERVER GROUPS\*(R"\s0.
+.IP "t: Choose Displayed Tables" 4
+.IX Item "t: Choose Displayed Tables"
+Lets you choose which tables to display in this mode. See \*(L"\s-1MODES\*(R"\s0 and
+\&\*(L"\s-1TABLES\*(R"\s0.
+.SH "CONFIGURATION FILE"
+.IX Header "CONFIGURATION FILE"
+innotop's default configuration file locations are \f(CW$HOME\fR/.innotop and
+/etc/innotop/innotop.conf, and they are looked for in that order. If the first
+configuration file exists, the second will not be processed. Those can be
+overridden with the \*(L"\-\-config\*(R" command-line option. You can edit it by hand
+safely, however innotop reads the configuration file when it starts, and, if
+readonly is set to 0, writes it out again when it exits. Thus, if readonly is
+set to 0, any changes you make by hand while innotop is running will be lost.
+.PP
+innotop doesn't store its entire configuration in the configuration file. It
+has a huge set of default configuration values that it holds only in memory,
+and the configuration file only overrides these defaults. When you customize a
+default setting, innotop notices, and then stores the customizations into the
+file. This keeps the file size down, makes it easier to edit, and makes
+upgrades easier.
+.PP
+A configuration file is read-only be default. You can override that with
+\&\*(L"\-\-write\*(R". See \*(L"readonly\*(R".
+.PP
+The configuration file is arranged into sections like an \s-1INI\s0 file. Each
+section begins with [section\-name] and ends with [/section\-name]. Each
+section's entries have a different syntax depending on the data they need to
+store. You can put comments in the file; any line that begins with a #
+character is a comment. innotop will not read the comments, so it won't write
+them back out to the file when it exits. Comments in read-only configuration
+files are still useful, though.
+.PP
+The first line in the file is innotop's version number. This lets innotop
+notice when the file format is not backwards-compatible, and upgrade smoothly
+without destroying your customized configuration.
+.PP
+The following list describes each section of the configuration file and the data
+it contains:
+.IP "general" 4
+.IX Item "general"
+The 'general' section contains global configuration variables and variables that
+may be mode-specific, but don't belong in any other section. The syntax is a
+simple key=value list. innotop writes a comment above each value to help you
+edit the file by hand.
+.RS 4
+.IP "S_func" 4
+.IX Item "S_func"
+Controls S mode presentation (see \*(L"S: Variables & Status\*(R"). If g, values are
+graphed; if s, values are like vmstat; if p, values are in a pivoted table.
+.IP "S_set" 4
+.IX Item "S_set"
+Specifies which set of variables to display in \*(L"S: Variables & Status\*(R" mode.
+See \*(L"\s-1VARIABLE SETS\*(R"\s0.
+.IP "auto_wipe_dl" 4
+.IX Item "auto_wipe_dl"
+Instructs innotop to automatically wipe large deadlocks when it notices them.
+When this happens you may notice a slight delay. At the next tick, you will
+usually see the information that was being truncated by the large deadlock.
+.IP "charset" 4
+.IX Item "charset"
+Specifies what kind of characters to allow through the \*(L"no_ctrl_char\*(R"
+transformation. This keeps non-printable characters from confusing a
+terminal when you monitor queries that contain binary data, such as images.
+.Sp
+The default is 'ascii', which considers anything outside normal \s-1ASCII\s0 to be a
+control character. The other allowable values are 'unicode' and 'none'. 'none'
+considers every character a control character, which can be useful for
+collapsing \s-1ALL\s0 text fields in queries.
+.IP "cmd_filter" 4
+.IX Item "cmd_filter"
+This is the prefix that filters variables in \*(L"C: Command Summary\*(R" mode.
+.IP "color" 4
+.IX Item "color"
+Whether terminal coloring is permitted.
+.IP "cxn_timeout" 4
+.IX Item "cxn_timeout"
+On MySQL versions 4.0.3 and newer, this variable is used to set the connection's
+timeout, so MySQL doesn't close the connection if it is not used for a while.
+This might happen because a connection isn't monitored in a particular mode, for
+example.
+.IP "debug" 4
+.IX Item "debug"
+This option enables more verbose errors and makes innotop more strict in some
+places. It can help in debugging filters and other user-defined code. It also
+makes innotop write a lot of information to \*(L"debugfile\*(R" when there is a
+crash.
+.IP "debugfile" 4
+.IX Item "debugfile"
+A file to which innotop will write information when there is a crash. See
+\&\*(L"\s-1FILES\*(R"\s0.
+.IP "display_table_captions" 4
+.IX Item "display_table_captions"
+innotop displays a table caption above most tables. This variable suppresses or
+shows captions on all tables globally. Some tables are configured with the
+hide_caption property, which overrides this.
+.IP "global" 4
+.IX Item "global"
+Whether to show \s-1GLOBAL\s0 variables and status. innotop only tries to do this on
+servers which support the \s-1GLOBAL\s0 option to \s-1SHOW VARIABLES\s0 and \s-1SHOW STATUS. \s0 In
+some MySQL versions, you need certain privileges to do this; if you don't have
+them, innotop will not be able to fetch any variable and status data. This
+configuration variable lets you run innotop and fetch what data you can even
+without the elevated privileges.
+.Sp
+I can no longer find or reproduce the situation where \s-1GLOBAL\s0 wasn't allowed, but
+I know there was one.
+.IP "graph_char" 4
+.IX Item "graph_char"
+Defines the character to use when drawing graphs in \*(L"S: Variables & Status\*(R"
+mode.
+.IP "header_highlight" 4
+.IX Item "header_highlight"
+Defines how to highlight column headers. This only works if Term::ANSIColor is
+available. Valid values are 'bold' and 'underline'.
+.IP "hide_hdr" 4
+.IX Item "hide_hdr"
+Hides column headers globally.
+.IP "interval" 4
+.IX Item "interval"
+The interval at which innotop will refresh its data (ticks). The interval is
+implemented as a sleep time between ticks, so the true interval will vary
+depending on how long it takes innotop to fetch and render data.
+.Sp
+This variable accepts fractions of a second.
+.IP "mode" 4
+.IX Item "mode"
+The mode in which innotop should start. Allowable arguments are the same as the
+key presses that select a mode interactively. See \*(L"\s-1MODES\*(R"\s0.
+.IP "num_digits" 4
+.IX Item "num_digits"
+How many digits to show in fractional numbers and percents. This variable's
+range is between 0 and 9 and can be set directly from \*(L"S: Variables & Status\*(R"
+mode with the '+' and '\-' keys. It is used in the \*(L"set_precision\*(R",
+\&\*(L"shorten\*(R", and \*(L"percent\*(R" transformations.
+.IP "num_status_sets" 4
+.IX Item "num_status_sets"
+Controls how many sets of status variables to display in pivoted \*(L"S: Variables
+& Status\*(R" mode. It also controls the number of old sets of variables innotop
+keeps in its memory, so the larger this variable is, the more memory innotop
+uses.
+.IP "plugin_dir" 4
+.IX Item "plugin_dir"
+Specifies where plugins can be found. By default, innotop stores plugins in the
+\&'plugins' subdirectory of your innotop configuration directory.
+.IP "readonly" 4
+.IX Item "readonly"
+Whether the configuration file is readonly. This cannot be set interactively.
+.IP "show_cxn_errors" 4
+.IX Item "show_cxn_errors"
+Makes innotop print connection errors to \s-1STDOUT. \s0 See \*(L"\s-1ERROR HANDLING\*(R"\s0.
+.IP "show_cxn_errors_in_tbl" 4
+.IX Item "show_cxn_errors_in_tbl"
+Makes innotop display connection errors as rows in the first table on screen.
+See \*(L"\s-1ERROR HANDLING\*(R"\s0.
+.IP "show_percent" 4
+.IX Item "show_percent"
+Adds a '%' character after the value returned by the \*(L"percent\*(R"
+transformation.
+.IP "show_statusbar" 4
+.IX Item "show_statusbar"
+Controls whether to show the status bar in the display. See \*(L"\s-1INNOTOP
+STATUS\*(R"\s0.
+.IP "skip_innodb" 4
+.IX Item "skip_innodb"
+Disables fetching \s-1SHOW INNODB STATUS,\s0 in case your server(s) do not have InnoDB
+enabled and you don't want innotop to try to fetch it. This can also be useful
+when you don't have the \s-1SUPER\s0 privilege, required to run \s-1SHOW INNODB STATUS.\s0
+.IP "spark" 4
+.IX Item "spark"
+Specifies how wide a spark chart is. There are two \s-1ASCII\s0 spark charts in A
+mode, showing \s-1QPS\s0 and User_threads_running.
+.IP "status_inc" 4
+.IX Item "status_inc"
+Whether to show absolute or incremental values for status variables.
+Incremental values are calculated as an offset from the last value innotop saw
+for that variable. This is a global setting, but will probably become
+mode-specific at some point. Right now it is honored a bit inconsistently; some
+modes don't pay attention to it.
+.IP "timeformat" 4
+.IX Item "timeformat"
+The C\-style \fIstrftime()\fR\-compatible format for the timestamp line to be printed
+in \-n mode when \-t is set.
+.RE
+.RS 4
+.RE
+.IP "plugins" 4
+.IX Item "plugins"
+This section holds a list of package names of active plugins. If the plugin
+exists, innotop will activate it. See \*(L"\s-1PLUGINS\*(R"\s0 for more information.
+.IP "filters" 4
+.IX Item "filters"
+This section holds user-defined filters (see \*(L"\s-1FILTERS\*(R"\s0). Each line is in the
+format filter_name=text='filter text' tbls='table list'.
+.Sp
+The filter text is the text of the subroutine's code. The table list is a list
+of tables to which the filter can apply. By default, user-defined filters apply
+to the table for which they were created, but you can manually override that by
+editing the definition in the configuration file.
+.IP "active_filters" 4
+.IX Item "active_filters"
+This section stores which filters are active on each table. Each line is in the
+format table_name=filter_list.
+.IP "tbl_meta" 4
+.IX Item "tbl_meta"
+This section stores user-defined or user-customized columns (see \*(L"\s-1COLUMNS\*(R"\s0).
+Each line is in the format col_name=properties, where the properties are a
+name=quoted\-value list.
+.IP "connections" 4
+.IX Item "connections"
+This section holds the server connections you have defined. Each line is in
+the format name=properties, where the properties are a name=value list. The
+properties are self-explanatory, and the only one that is treated specially is
+\&'pass' which is only present if 'savepass' is set. This section of the
+configuration file will be skipped if any \s-1DSN,\s0 username, or password
+command-line options are used. See \*(L"\s-1SERVER CONNECTIONS\*(R"\s0.
+.IP "active_connections" 4
+.IX Item "active_connections"
+This section holds a list of which connections are active in each mode. Each
+line is in the format mode_name=connection_list.
+.IP "server_groups" 4
+.IX Item "server_groups"
+This section holds server groups. Each line is in the format
+name=connection_list. See \*(L"\s-1SERVER GROUPS\*(R"\s0.
+.IP "active_server_groups" 4
+.IX Item "active_server_groups"
+This section holds a list of which server group is active in each mode. Each
+line is in the format mode_name=server_group.
+.IP "max_values_seen" 4
+.IX Item "max_values_seen"
+This section holds the maximum values seen for variables. This is used to scale
+the graphs in \*(L"S: Variables & Status\*(R" mode. Each line is in the format
+name=value.
+.IP "active_columns" 4
+.IX Item "active_columns"
+This section holds table column lists. Each line is in the format
+tbl_name=column_list. See \*(L"\s-1COLUMNS\*(R"\s0.
+.IP "sort_cols" 4
+.IX Item "sort_cols"
+This section holds the sort definition. Each line is in the format
+tbl_name=column_list. If a column is prefixed with '\-', that column sorts
+descending. See \*(L"\s-1SORTING\*(R"\s0.
+.IP "visible_tables" 4
+.IX Item "visible_tables"
+This section defines which tables are visible in each mode. Each line is in the
+format mode_name=table_list. See \*(L"\s-1TABLES\*(R"\s0.
+.IP "varsets" 4
+.IX Item "varsets"
+This section defines variable sets for use in \*(L"S: Status & Variables\*(R" mode.
+Each line is in the format name=variable_list. See \*(L"\s-1VARIABLE SETS\*(R"\s0.
+.IP "colors" 4
+.IX Item "colors"
+This section defines colorization rules. Each line is in the format
+tbl_name=property_list. See \*(L"\s-1COLORS\*(R"\s0.
+.IP "stmt_sleep_times" 4
+.IX Item "stmt_sleep_times"
+This section contains statement sleep times. Each line is in the format
+statement_name=sleep_time. See \*(L"S: Statement Sleep Times\*(R".
+.IP "group_by" 4
+.IX Item "group_by"
+This section contains column lists for table group_by expressions. Each line is
+in the format tbl_name=column_list. See \*(L"\s-1GROUPING\*(R"\s0.
+.SH "CUSTOMIZING"
+.IX Header "CUSTOMIZING"
+You can customize innotop a great deal. For example, you can:
+.IP "\(bu" 4
+Choose which tables to display, and in what order.
+.IP "\(bu" 4
+Choose which columns are in those tables, and create new columns.
+.IP "\(bu" 4
+Filter which rows display with built-in filters, user-defined filters, and
+quick-filters.
+.IP "\(bu" 4
+Sort the rows to put important data first or group together related rows.
+.IP "\(bu" 4
+Highlight rows with color.
+.IP "\(bu" 4
+Customize the alignment, width, and formatting of columns, and apply
+transformations to columns to extract parts of their values or format the values
+as you wish (for example, shortening large numbers to familiar units).
+.IP "\(bu" 4
+Design your own expressions to extract and combine data as you need. This gives
+you unlimited flexibility.
+.PP
+All these and more are explained in the following sections.
+.SS "\s-1TABLES\s0"
+.IX Subsection "TABLES"
+A table is what you'd expect: a collection of columns. It also has some other
+properties, such as a caption. Filters, sorting rules, and colorization rules
+belong to tables and are covered in later sections.
+.PP
+Internally, table meta-data is defined in a data structure called \f(CW%tbl_meta\fR.
+This hash holds all built-in table definitions, which contain a lot of default
+instructions to innotop. The meta-data includes the caption, a list of columns
+the user has customized, a list of columns, a list of visible columns, a list of
+filters, color rules, a sort-column list, sort direction, and some information
+about the table's data sources. Most of this is customizable via the table
+editor (see \*(L"\s-1TABLE EDITOR\*(R"\s0).
+.PP
+You can choose which tables to show by pressing the '$' key. See \*(L"\s-1MODES\*(R"\s0 and
+\&\*(L"\s-1TABLES\*(R"\s0.
+.PP
+The table life-cycle is as follows:
+.IP "\(bu" 4
+Each table begins with a data source, which is an array of hashes. See below
+for details on data sources.
+.IP "\(bu" 4
+Each element of the data source becomes a row in the final table.
+.IP "\(bu" 4
+For each element in the data source, innotop extracts values from the source and
+creates a row. This row is another hash, which later steps will refer to as
+\&\f(CW$set\fR. The values innotop extracts are determined by the table's columns. Each
+column has an extraction subroutine, compiled from an expression (see
+\&\*(L"\s-1EXPRESSIONS\*(R"\s0). The resulting row is a hash whose keys are named the same as
+the column name.
+.IP "\(bu" 4
+innotop filters the rows, removing those that don't need to be displayed. See
+\&\*(L"\s-1FILTERS\*(R"\s0.
+.IP "\(bu" 4
+innotop sorts the rows. See \*(L"\s-1SORTING\*(R"\s0.
+.IP "\(bu" 4
+innotop groups the rows together, if specified. See \*(L"\s-1GROUPING\*(R"\s0.
+.IP "\(bu" 4
+innotop colorizes the rows. See \*(L"\s-1COLORS\*(R"\s0.
+.IP "\(bu" 4
+innotop transforms the column values in each row. See \*(L"\s-1TRANSFORMATIONS\*(R"\s0.
+.IP "\(bu" 4
+innotop optionally pivots the rows (see \*(L"\s-1PIVOTING\*(R"\s0), then filters and sorts
+them.
+.IP "\(bu" 4
+innotop formats and justifies the rows as a table. During this step, innotop
+applies further formatting to the column values, including alignment, maximum
+and minimum widths. innotop also does final error checking to ensure there are
+no crashes due to undefined values. innotop then adds a caption if specified,
+and the table is ready to print.
+.PP
+The lifecycle is slightly different if the table is pivoted, as noted above. To
+clarify, if the table is pivoted, the process is extract, group, transform,
+pivot, filter, sort, create. If it's not pivoted, the process is extract,
+filter, sort, group, color, transform, create. This slightly convoluted process
+doesn't map all that well to \s-1SQL,\s0 but pivoting complicates things pretty
+thoroughly. Roughly speaking, filtering and sorting happen as late as needed to
+effect the final result as you might expect, but as early as possible for
+efficiency.
+.PP
+Each built-in table is described below:
+.IP "adaptive_hash_index" 4
+.IX Item "adaptive_hash_index"
+Displays data about InnoDB's adaptive hash index. Data source:
+\&\*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "buffer_pool" 4
+.IX Item "buffer_pool"
+Displays data about InnoDB's buffer pool. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "cmd_summary" 4
+.IX Item "cmd_summary"
+Displays weighted status variables. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "deadlock_locks" 4
+.IX Item "deadlock_locks"
+Shows which locks were held and waited for by the last detected deadlock. Data
+source: \*(L"\s-1DEADLOCK_LOCKS\*(R"\s0.
+.IP "deadlock_transactions" 4
+.IX Item "deadlock_transactions"
+Shows transactions involved in the last detected deadlock. Data source:
+\&\*(L"\s-1DEADLOCK_TRANSACTIONS\*(R"\s0.
+.IP "explain" 4
+.IX Item "explain"
+Shows the output of \s-1EXPLAIN. \s0 Data source: \*(L"\s-1EXPLAIN\*(R"\s0.
+.IP "file_io_misc" 4
+.IX Item "file_io_misc"
+Displays data about InnoDB's file and I/O operations. Data source:
+\&\*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "fk_error" 4
+.IX Item "fk_error"
+Displays various data about InnoDB's last foreign key error. Data source:
+\&\*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "health_dashboard" 4
+.IX Item "health_dashboard"
+Displays an overall summary of servers, one server per line, for monitoring.
+Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0, \*(L"\s-1MASTER_SLAVE\*(R"\s0, \*(L"\s-1PROCESSLIST_STATS\*(R"\s0.
+.IP "index_statistics" 4
+.IX Item "index_statistics"
+Displays data from the \s-1INDEX_STATISTICS\s0 table in Percona-enhanced servers.
+.IP "index_table_statistics" 4
+.IX Item "index_table_statistics"
+Displays data from the \s-1INDEX_STATISTICS\s0 and \s-1TABLE_STATISTICS\s0 tables in
+Percona-enhanced servers. It joins the two together, grouped by the database
+and table name. It is the default view in \*(L"U: User Statistics\*(R" mode,
+and makes it easy to see what tables are hot, how many rows are read from indexes,
+how many changes are made, and how many changes are made to indexes.
+.IP "innodb_blocked_blocker" 4
+.IX Item "innodb_blocked_blocker"
+Displays InnoDB locks and lock waits. Data source: \*(L"\s-1INNODB_BLOCKED_BLOCKER\*(R"\s0.
+.IP "innodb_locks" 4
+.IX Item "innodb_locks"
+Displays InnoDB locks. Data source: \*(L"\s-1INNODB_LOCKS\*(R"\s0.
+.IP "innodb_transactions" 4
+.IX Item "innodb_transactions"
+Displays data about InnoDB's current transactions. Data source:
+\&\*(L"\s-1INNODB_TRANSACTIONS\*(R"\s0.
+.IP "insert_buffers" 4
+.IX Item "insert_buffers"
+Displays data about InnoDB's insert buffer. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "io_threads" 4
+.IX Item "io_threads"
+Displays data about InnoDB's I/O threads. Data source: \*(L"\s-1IO_THREADS\*(R"\s0.
+.IP "log_statistics" 4
+.IX Item "log_statistics"
+Displays data about InnoDB's logging system. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "master_status" 4
+.IX Item "master_status"
+Displays replication master status. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "open_tables" 4
+.IX Item "open_tables"
+Displays open tables. Data source: \*(L"\s-1OPEN_TABLES\*(R"\s0.
+.IP "page_statistics" 4
+.IX Item "page_statistics"
+Displays InnoDB page statistics. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "pending_io" 4
+.IX Item "pending_io"
+Displays InnoDB pending I/O operations. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "processlist" 4
+.IX Item "processlist"
+Displays current MySQL processes (threads/connections). Data source:
+\&\*(L"\s-1PROCESSLIST\*(R"\s0.
+.IP "q_header" 4
+.IX Item "q_header"
+Displays various status values. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "row_operation_misc" 4
+.IX Item "row_operation_misc"
+Displays data about InnoDB's row operations. Data source:
+\&\*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "row_operations" 4
+.IX Item "row_operations"
+Displays data about InnoDB's row operations. Data source:
+\&\*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "semaphores" 4
+.IX Item "semaphores"
+Displays data about InnoDB's semaphores and mutexes. Data source:
+\&\*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "slave_io_status" 4
+.IX Item "slave_io_status"
+Displays data about the slave I/O thread. Data source:
+\&\*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "slave_sql_status" 4
+.IX Item "slave_sql_status"
+Displays data about the slave \s-1SQL\s0 thread. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "table_statistics" 4
+.IX Item "table_statistics"
+Displays data from the \s-1TABLE_STATISTICS\s0 table in Percona-enhanced servers.
+.IP "t_header" 4
+.IX Item "t_header"
+Displays various InnoDB status values. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "var_status" 4
+.IX Item "var_status"
+Displays user-configurable data. Data source: \*(L"\s-1STATUS_VARIABLES\*(R"\s0.
+.IP "wait_array" 4
+.IX Item "wait_array"
+Displays data about InnoDB's \s-1OS\s0 wait array. Data source: \*(L"\s-1OS_WAIT_ARRAY\*(R"\s0.
+.SS "\s-1COLUMNS\s0"
+.IX Subsection "COLUMNS"
+Columns belong to tables. You can choose a table's columns by pressing the '^'
+key, which starts the \*(L"\s-1TABLE EDITOR\*(R"\s0 and lets you choose and edit columns.
+Pressing 'e' from within the table editor lets you edit the column's properties:
+.IP "\(bu" 4
+hdr: a column header. This appears in the first row of the table.
+.IP "\(bu" 4
+just: justification. '\-' means left-justified and '' means right-justified,
+just as with printf formatting codes (not a coincidence).
+.IP "\(bu" 4
+dec: whether to further align the column on the decimal point.
+.IP "\(bu" 4
+num: whether the column is numeric. This affects how values are sorted
+(lexically or numerically).
+.IP "\(bu" 4
+label: a small note about the column, which appears in dialogs that help the
+user choose columns.
+.IP "\(bu" 4
+src: an expression that innotop uses to extract the column's data from its
+source (see \*(L"\s-1DATA SOURCES\*(R"\s0). See \*(L"\s-1EXPRESSIONS\*(R"\s0 for more on expressions.
+.IP "\(bu" 4
+minw: specifies a minimum display width. This helps stabilize the display,
+which makes it easier to read if the data is changing frequently.
+.IP "\(bu" 4
+maxw: similar to minw.
+.IP "\(bu" 4
+trans: a list of column transformations. See \*(L"\s-1TRANSFORMATIONS\*(R"\s0.
+.IP "\(bu" 4
+agg: an aggregate function. See \*(L"\s-1GROUPING\*(R"\s0. The default is \*(L"first\*(R".
+.IP "\(bu" 4
+aggonly: controls whether the column only shows when grouping is enabled on the
+table (see \*(L"\s-1GROUPING\*(R"\s0). By default, this is disabled. This means columns
+will always be shown by default, whether grouping is enabled or not. If a
+column's aggonly is set true, the column will appear when you toggle grouping on
+the table. Several columns are set this way, such as the count column on
+\&\*(L"processlist\*(R" and \*(L"innodb_transactions\*(R", so you don't see a count when the
+grouping isn't enabled, but you do when it is.
+.IP "\(bu" 4
+agghide: the reverse of aggonly. The column is hidden when grouping is enabled.
+.SS "\s-1FILTERS\s0"
+.IX Subsection "FILTERS"
+Filters remove rows from the display. They behave much like a \s-1WHERE\s0 clause in
+\&\s-1SQL. \s0 innotop has several built-in filters, which remove irrelevant information
+like inactive queries, but you can define your own as well. innotop also lets
+you create quick-filters, which do not get saved to the configuration file, and
+are just an easy way to quickly view only some rows.
+.PP
+You can enable or disable a filter on any table. Press the '%' key (mnemonic: %
+looks kind of like a line being filtered between two circles) and choose which
+table you want to filter, if asked. You'll then see a list of possible filters
+and a list of filters currently enabled for that table. Type the names of
+filters you want to apply and press Enter.
+.PP
+\fIUSER-DEFINED \s-1FILTERS\s0\fR
+.IX Subsection "USER-DEFINED FILTERS"
+.PP
+If you type a name that doesn't exist, innotop will prompt you to create the
+filter. Filters are easy to create if you know Perl, and not hard if you don't.
+What you're doing is creating a subroutine that returns true if the row should
+be displayed. The row is a hash reference passed to your subroutine as \f(CW$set\fR.
+.PP
+For example, imagine you want to filter the processlist table so you only see
+queries that have been running more than five minutes. Type a new name for your
+filter, and when prompted for the subroutine body, press \s-1TAB\s0 to initiate your
+terminal's auto-completion. You'll see the names of the columns in the
+\&\*(L"processlist\*(R" table (innotop generally tries to help you with auto-completion
+lists). You want to filter on the 'time' column. Type the text \*(L"$set\->{time} >
+300\*(R" to return true when the query is more than five minutes old. That's all
+you need to do.
+.PP
+In other words, the code you're typing is surrounded by an implicit context,
+which looks like this:
+.PP
+.Vb 4
+\& sub filter {
+\& my ( $set ) = @_;
+\& # YOUR CODE HERE
+\& }
+.Ve
+.PP
+If your filter doesn't work, or if something else suddenly behaves differently,
+you might have made an error in your filter, and innotop is silently catching
+the error. Try enabling \*(L"debug\*(R" to make innotop throw an error instead.
+.PP
+\fIQUICK-FILTERS\fR
+.IX Subsection "QUICK-FILTERS"
+.PP
+innotop's quick-filters are a shortcut to create a temporary filter that doesn't
+persist when you restart innotop. To create a quick-filter, press the '/' key.
+innotop will prompt you for the column name and filter text. Again, you can use
+auto-completion on column names. The filter text can be just the text you want
+to \*(L"search for.\*(R" For example, to filter the \*(L"processlist\*(R" table on queries
+that refer to the products table, type '/' and then 'info product'. Internally,
+the filter is compiled into a subroutine like this:
+.PP
+.Vb 4
+\& sub filter {
+\& my ( $set ) = @_;
+\& $set\->{info} =~ m/product/;
+\& }
+.Ve
+.PP
+The filter text can actually be any Perl regular expression, but of course a
+literal string like 'product' works fine as a regular expression.
+.PP
+What if you want the filter to discard matching rows, rather than showing
+matching rows? If you're familiar with Perl regular expressions, you might
+guess how to do this. You have to use a zero-width negative lookahead
+assertion. If you don't know what that means, don't worry. Let's filter out
+all rows where the command is Gandalf. Type the following:
+.PP
+.Vb 2
+\& 1. /
+\& 2. cmd ^(?!Gandalf)
+.Ve
+.PP
+Behind the scenes innotop compiles the quick-filter into a specially tagged
+filter that is otherwise like any other filter. It just isn't saved to the
+configuration file.
+.PP
+To clear quick-filters, press the '\e' key and innotop will clear them all at
+once.
+.SS "\s-1SORTING\s0"
+.IX Subsection "SORTING"
+innotop has sensible built-in defaults to sort the most important rows to the
+top of the table. Like anything else in innotop, you can customize how any
+table is sorted.
+.PP
+To start the sort dialog, start the \*(L"\s-1TABLE EDITOR\*(R"\s0 with the '^' key, choose a
+table if necessary, and press the 's' key. You'll see a list of columns you can
+use in the sort expression and the current sort expression, if any. Enter a
+list of columns by which you want to sort and press Enter. If you want to
+reverse sort, prefix the column name with a minus sign. For example, if you
+want to sort by column a ascending, then column b descending, type 'a \-b'. You
+can also explicitly add a + in front of columns you want to sort ascending, but
+it's not required.
+.PP
+Some modes have keys mapped to open this dialog directly, and to quickly reverse
+sort direction. Press '?' as usual to see which keys are mapped in any mode.
+.SS "\s-1GROUPING\s0"
+.IX Subsection "GROUPING"
+innotop can group, or aggregate, rows together (the terms are used
+interchangeably). This is quite similar to an \s-1SQL GROUP BY\s0 clause. You can
+specify to group on certain columns, or if you don't specify any, the entire set
+of rows is treated as one group. This is quite like \s-1SQL\s0 so far, but unlike \s-1SQL,\s0
+you can also select un-grouped columns. innotop actually aggregates every
+column. If you don't explicitly specify a grouping function, the default is
+\&'first'. This is basically a convenience so you don't have to specify an
+aggregate function for every column you want in the result.
+.PP
+You can quickly toggle grouping on a table with the '=' key, which toggles its
+aggregate property. This property doesn't persist to the config file.
+.PP
+The columns by which the table is grouped are specified in its group_by
+property. When you turn grouping on, innotop places the group_by columns at the
+far left of the table, even if they're not supposed to be visible. The rest of
+the visible columns appear in order after them.
+.PP
+Two tables have default group_by lists and a count column built in:
+\&\*(L"processlist\*(R" and \*(L"innodb_transactions\*(R". The grouping is by connection
+and status, so you can quickly see how many queries or transactions are in a
+given status on each server you're monitoring. The time columns are aggregated
+as a sum; other columns are left at the default 'first' aggregation.
+.PP
+By default, the table shown in \*(L"S: Variables & Status\*(R" mode also uses
+grouping so you can monitor variables and status across many servers. The
+default aggregation function in this mode is 'avg'.
+.PP
+Valid grouping functions are defined in the \f(CW%agg_funcs\fR hash. They include
+.IP "first" 4
+.IX Item "first"
+Returns the first element in the group.
+.IP "count" 4
+.IX Item "count"
+Returns the number of elements in the group, including undefined elements, much
+like \s-1SQL\s0's \s-1COUNT\s0(*).
+.IP "avg" 4
+.IX Item "avg"
+Returns the average of defined elements in the group.
+.IP "sum" 4
+.IX Item "sum"
+Returns the sum of elements in the group.
+.PP
+Here's an example of grouping at work. Suppose you have a very busy server with
+hundreds of open connections, and you want to see how many connections are in
+what status. Using the built-in grouping rules, you can press 'Q' to enter
+\&\*(L"Q: Query List\*(R" mode. Press '=' to toggle grouping (if necessary, select the
+\&\*(L"processlist\*(R" table when prompted).
+.PP
+Your display might now look like the following:
+.PP
+.Vb 1
+\& Query List (? for help) localhost, 32:33, 0.11 QPS, 1 thd, 5.0.38\-log
+\&
+\& CXN Cmd Cnt ID User Host Time Query
+\& localhost Query 49 12933 webusr localhost 19:38 SELECT * FROM
+\& localhost Sending Da 23 2383 webusr localhost 12:43 SELECT col1,
+\& localhost Sleep 120 140 webusr localhost 5:18:12
+\& localhost Statistics 12 19213 webusr localhost 01:19 SELECT * FROM
+.Ve
+.PP
+That's actually quite a worrisome picture. You've got a lot of idle connections
+(Sleep), and some connections executing queries (Query and Sending Data).
+That's okay, but you also have a lot in Statistics status, collectively spending
+over a minute. That means the query optimizer is having a really hard time
+generating execution plans for your statements. Something is wrong; it should
+normally take milliseconds to plan queries. You might not have seen this pattern if you
+didn't look at your connections in aggregate. (This is a made-up example, but
+it can happen in real life).
+.SS "\s-1PIVOTING\s0"
+.IX Subsection "PIVOTING"
+innotop can pivot a table for more compact display, similar to a Pivot Table in
+a spreadsheet (also known as a crosstab). Pivoting a table makes columns into
+rows. Assume you start with this table:
+.PP
+.Vb 4
+\& foo bar
+\& === ===
+\& 1 3
+\& 2 4
+.Ve
+.PP
+After pivoting, the table will look like this:
+.PP
+.Vb 4
+\& name set0 set1
+\& ==== ==== ====
+\& foo 1 2
+\& bar 3 4
+.Ve
+.PP
+To get reasonable results, you might need to group as well as pivoting.
+innotop currently does this for \*(L"S: Variables & Status\*(R" mode.
+.SS "\s-1COLORS\s0"
+.IX Subsection "COLORS"
+By default, innotop highlights rows with color so you can see at a glance which
+rows are more important. You can customize the colorization rules and add your
+own to any table. Open the table editor with the '^' key, choose a table if
+needed, and press 'o' to open the color editor dialog.
+.PP
+The color editor dialog displays the rules applied to the table, in the order
+they are evaluated. Each row is evaluated against each rule to see if the rule
+matches the row; if it does, the row gets the specified color, and no further
+rules are evaluated. The rules look like the following:
+.PP
+.Vb 9
+\& state eq Locked black on_red
+\& cmd eq Sleep white
+\& user eq system user white
+\& cmd eq Connect white
+\& cmd eq Binlog Dump white
+\& time > 600 red
+\& time > 120 yellow
+\& time > 60 green
+\& time > 30 cyan
+.Ve
+.PP
+This is the default rule set for the \*(L"processlist\*(R" table. In order of
+priority, these rules make locked queries black on a red background, \*(L"gray out\*(R"
+connections from replication and sleeping queries, and make queries turn from
+cyan to red as they run longer.
+.PP
+(For some reason, the \s-1ANSI\s0 color code \*(L"white\*(R" is actually a light gray. Your
+terminal's display may vary; experiment to find colors you like).
+.PP
+You can use keystrokes to move the rules up and down, which re-orders their
+priority. You can also delete rules and add new ones. If you add a new rule,
+innotop prompts you for the column, an operator for the comparison, a value
+against which to compare the column, and a color to assign if the rule matches.
+There is auto-completion and prompting at each step.
+.PP
+The value in the third step needs to be correctly quoted. innotop does not try
+to quote the value because it doesn't know whether it should treat the value as
+a string or a number. If you want to compare the column against a string, as
+for example in the first rule above, you should enter 'Locked' surrounded by
+quotes. If you get an error message about a bareword, you probably should have
+quoted something.
+.SS "\s-1EXPRESSIONS\s0"
+.IX Subsection "EXPRESSIONS"
+Expressions are at the core of how innotop works, and are what enables you to
+extend innotop as you wish. Recall the table lifecycle explained in
+\&\*(L"\s-1TABLES\*(R"\s0. Expressions are used in the earliest step, where it extracts
+values from a data source to form rows.
+.PP
+It does this by calling a subroutine for each column, passing it the source data
+set, a set of current values, and a set of previous values. These are all
+needed so the subroutine can calculate things like the difference between this
+tick and the previous tick.
+.PP
+The subroutines that extract the data from the set are compiled from
+expressions. This gives significantly more power than just naming the values to
+fill the columns, because it allows the column's value to be calculated from
+whatever data is necessary, but avoids the need to write complicated and lengthy
+Perl code.
+.PP
+innotop begins with a string of text that can look as simple as a value's name
+or as complicated as a full-fledged Perl expression. It looks at each
+\&'bareword' token in the string and decides whether it's supposed to be a key
+into the \f(CW$set\fR hash. A bareword is an unquoted value that isn't already
+surrounded by code-ish things like dollar signs or curly brackets. If innotop
+decides that the bareword isn't a function or other valid Perl code, it converts
+it into a hash access. After the whole string is processed, innotop compiles a
+subroutine, like this:
+.PP
+.Vb 5
+\& sub compute_column_value {
+\& my ( $set, $cur, $pre ) = @_;
+\& my $val = # EXPANDED STRING GOES HERE
+\& return $val;
+\& }
+.Ve
+.PP
+Here's a concrete example, taken from the header table \*(L"q_header\*(R" in \*(L"Q:
+Query List\*(R" mode. This expression calculates the qps, or Queries Per Second,
+column's values, from the values returned by \s-1SHOW STATUS:\s0
+.PP
+.Vb 1
+\& Questions/Uptime_hires
+.Ve
+.PP
+innotop decides both words are barewords, and transforms this expression into
+the following Perl code:
+.PP
+.Vb 1
+\& $set\->{Questions}/$set\->{Uptime_hires}
+.Ve
+.PP
+When surrounded by the rest of the subroutine's code, this is executable Perl
+that calculates a high-resolution queries-per-second value.
+.PP
+The arguments to the subroutine are named \f(CW$set\fR, \f(CW$cur\fR, and \f(CW$pre\fR. In most cases,
+\&\f(CW$set\fR and \f(CW$cur\fR will be the same values. However, if \*(L"status_inc\*(R" is set, \f(CW$cur\fR
+will not be the same as \f(CW$set\fR, because \f(CW$set\fR will already contain values that are
+the incremental difference between \f(CW$cur\fR and \f(CW$pre\fR.
+.PP
+Every column in innotop is computed by subroutines compiled in the same fashion.
+There is no difference between innotop's built-in columns and user-defined
+columns. This keeps things consistent and predictable.
+.SS "\s-1TRANSFORMATIONS\s0"
+.IX Subsection "TRANSFORMATIONS"
+Transformations change how a value is rendered. For example, they can take a
+number of seconds and display it in H:M:S format. The following transformations
+are defined:
+.IP "commify" 4
+.IX Item "commify"
+Adds commas to large numbers every three decimal places.
+.IP "distill" 4
+.IX Item "distill"
+Distills \s-1SQL\s0 into verb-noun-noun format for quick comprehension.
+.IP "dulint_to_int" 4
+.IX Item "dulint_to_int"
+Accepts two unsigned integers and converts them into a single longlong. This is
+useful for certain operations with InnoDB, which uses two integers as
+transaction identifiers, for example.
+.IP "fuzzy_time" 4
+.IX Item "fuzzy_time"
+Converts a number of seconds into a friendly, readable value like \*(L"1h35m\*(R".
+.IP "no_ctrl_char" 4
+.IX Item "no_ctrl_char"
+Removes quoted control characters from the value. This is affected by the
+\&\*(L"charset\*(R" configuration variable.
+.Sp
+This transformation only operates within quoted strings, for example, values to
+a \s-1SET\s0 clause in an \s-1UPDATE\s0 statement. It will not alter the \s-1UPDATE\s0 statement,
+but will collapse the quoted string to [\s-1BINARY\s0] or [\s-1TEXT\s0], depending on the
+charset.
+.IP "percent" 4
+.IX Item "percent"
+Converts a number to a percentage by multiplying it by two, formatting it with
+\&\*(L"num_digits\*(R" digits after the decimal point, and optionally adding a percent
+sign (see \*(L"show_percent\*(R").
+.IP "secs_to_time" 4
+.IX Item "secs_to_time"
+Formats a number of seconds as time in days+hours:minutes:seconds format.
+.IP "set_precision" 4
+.IX Item "set_precision"
+Formats numbers with \*(L"num_digits\*(R" number of digits after the decimal point.
+.IP "shorten" 4
+.IX Item "shorten"
+Formats a number as a unit of 1024 (k/M/G/T) and with \*(L"num_digits\*(R" number of
+digits after the decimal point.
+.SS "\s-1TABLE EDITOR\s0"
+.IX Subsection "TABLE EDITOR"
+The innotop table editor lets you customize tables with keystrokes. You start
+the table editor with the '^' key. If there's more than one table on the
+screen, it will prompt you to choose one of them. Once you do, innotop will
+show you something like this:
+.PP
+.Vb 1
+\& Editing table definition for Buffer Pool. Press ? for help, q to quit.
+\&
+\& name hdr label src
+\& cxn CXN Connection from which cxn
+\& buf_pool_size Size Buffer pool size IB_bp_buf_poo
+\& buf_free Free Bufs Buffers free in the b IB_bp_buf_fre
+\& pages_total Pages Pages total IB_bp_pages_t
+\& pages_modified Dirty Pages Pages modified (dirty IB_bp_pages_m
+\& buf_pool_hit_rate Hit Rate Buffer pool hit rate IB_bp_buf_poo
+\& total_mem_alloc Memory Total memory allocate IB_bp_total_m
+\& add_pool_alloc Add\*(Aql Pool Additonal pool alloca IB_bp_add_poo
+.Ve
+.PP
+The first line shows which table you're editing, and reminds you again to press
+\&'?' for a list of key mappings. The rest is a tabular representation of the
+table's columns, because that's likely what you're trying to edit. However, you
+can edit more than just the table's columns; this screen can start the filter
+editor, color rule editor, and more.
+.PP
+Each row in the display shows a single column in the table you're editing, along
+with a couple of its properties such as its header and source expression (see
+\&\*(L"\s-1EXPRESSIONS\*(R"\s0).
+.PP
+The key mappings are Vim-style, as in many other places. Pressing 'j' and 'k'
+moves the highlight up or down. You can then (d)elete or (e)dit the highlighted
+column. You can also (a)dd a column to the table. This actually just activates
+one of the columns already defined for the table; it prompts you to choose from
+among the columns available but not currently displayed. Finally, you can
+re-order the columns with the '+' and '\-' keys.
+.PP
+You can do more than just edit the columns with the table editor, you can also
+edit other properties, such as the table's sort expression and group-by
+expression. Press '?' to see the full list, of course.
+.PP
+If you want to really customize and create your own column, as opposed to just
+activating a built-in one that's not currently displayed, press the (n)ew key,
+and innotop will prompt you for the information it needs:
+.IP "\(bu" 4
+The column name: this needs to be a word without any funny characters, e.g. just
+letters, numbers and underscores.
+.IP "\(bu" 4
+The column header: this is the label that appears at the top of the column, in
+the table header. This can have spaces and funny characters, but be careful not
+to make it too wide and waste space on-screen.
+.IP "\(bu" 4
+The column's data source: this is an expression that determines what data from
+the source (see \*(L"\s-1TABLES\*(R"\s0) innotop will put into the column. This can just be
+the name of an item in the source, or it can be a more complex expression, as
+described in \*(L"\s-1EXPRESSIONS\*(R"\s0.
+.PP
+Once you've entered the required data, your table has a new column. There is no
+difference between this column and the built-in ones; it can have all the same
+properties and behaviors. innotop will write the column's definition to the
+configuration file, so it will persist across sessions.
+.PP
+Here's an example: suppose you want to track how many times your slaves have
+retried transactions. According to the MySQL manual, the
+Slave_retried_transactions status variable gives you that data: \*(L"The total
+number of times since startup that the replication slave \s-1SQL\s0 thread has retried
+transactions. This variable was added in version 5.0.4.\*(R" This is appropriate to
+add to the \*(L"slave_sql_status\*(R" table.
+.PP
+To add the column, switch to the replication-monitoring mode with the 'M' key,
+and press the '^' key to start the table editor. When prompted, choose
+slave_sql_status as the table, then press 'n' to create the column. Type
+\&'retries' as the column name, 'Retries' as the column header, and
+\&'Slave_retried_transactions' as the source. Now the column is created, and you
+see the table editor screen again. Press 'q' to exit the table editor, and
+you'll see your column at the end of the table.
+.SH "VARIABLE SETS"
+.IX Header "VARIABLE SETS"
+Variable sets are used in \*(L"S: Variables & Status\*(R" mode to define more easily
+what variables you want to monitor. Behind the scenes they are compiled to a
+list of expressions, and then into a column list so they can be treated just
+like columns in any other table, in terms of data extraction and
+transformations. However, you're protected from the tedious details by a syntax
+that ought to feel very natural to you: a \s-1SQL SELECT\s0 list.
+.PP
+The data source for variable sets, and indeed the entire S mode, is the
+combination of \s-1SHOW STATUS, SHOW VARIABLES,\s0 and \s-1SHOW INNODB STATUS. \s0 Imagine
+that you had a huge table with one column per variable returned from those
+statements. That's the data source for variable sets. You can now query this
+data source just like you'd expect. For example:
+.PP
+.Vb 1
+\& Questions, Uptime, Questions/Uptime as QPS
+.Ve
+.PP
+Behind the scenes innotop will split that variable set into three expressions,
+compile them and turn them into a table definition, then extract as usual. This
+becomes a \*(L"variable set,\*(R" or a \*(L"list of variables you want to monitor.\*(R"
+.PP
+innotop lets you name and save your variable sets, and writes them to the
+configuration file. You can choose which variable set you want to see with the
+\&'c' key, or activate the next and previous sets with the '>' and '<' keys.
+There are many built-in variable sets as well, which should give you a good
+start for creating your own. Press 'e' to edit the current variable set, or
+just to see how it's defined. To create a new one, just press 'c' and type its
+name.
+.PP
+You may want to use some of the functions listed in \*(L"\s-1TRANSFORMATIONS\*(R"\s0 to help
+format the results. In particular, \*(L"set_precision\*(R" is often useful to limit
+the number of digits you see. Extending the above example, here's how:
+.PP
+.Vb 1
+\& Questions, Uptime, set_precision(Questions/Uptime) as QPS
+.Ve
+.PP
+Actually, this still needs a little more work. If your \*(L"interval\*(R" is less
+than one second, you might be dividing by zero because Uptime is incremental in
+this mode by default. Instead, use Uptime_hires:
+.PP
+.Vb 1
+\& Questions, Uptime, set_precision(Questions/Uptime_hires) as QPS
+.Ve
+.PP
+This example is simple, but it shows how easy it is to choose which variables
+you want to monitor.
+.SH "PLUGINS"
+.IX Header "PLUGINS"
+innotop has a simple but powerful plugin mechanism by which you can extend
+or modify its existing functionality, and add new functionality. innotop's
+plugin functionality is event-based: plugins register themselves to be called
+when events happen. They then have a chance to influence the event.
+.PP
+An innotop plugin is a Perl module (.pm) file placed in innotop's \*(L"plugin_dir\*(R"
+directory. On \s-1UNIX\s0 systems, you can place a symbolic link to the module instead
+of putting the actual file there. innotop automatically discovers files named \f(CW\*(C`*.pm\*(C'\fR. If
+there is a corresponding entry in the \*(L"plugins\*(R" configuration file section,
+innotop loads and activates the plugin.
+.PP
+The module must conform to innotop's plugin interface. Additionally, the source
+code of the module must be written in such a way that innotop can inspect the
+file and determine the package name and description.
+.SS "Package Source Convention"
+.IX Subsection "Package Source Convention"
+innotop inspects the plugin module's source to determine the Perl package name.
+It looks for a line of the form \*(L"package Foo;\*(R" and if found, considers the
+plugin's package name to be Foo. Of course the package name can be a valid Perl
+package name such as Foo::Bar, with double colons (::) and so on.
+.PP
+It also looks for a description in the source code, to make the plugin editor
+more human-friendly. The description is a comment line of the form \*(L"#
+description: Foo\*(R", where \*(L"Foo\*(R" is the text innotop will consider to be the
+plugin's description.
+.SS "Plugin Interface"
+.IX Subsection "Plugin Interface"
+The innotop plugin interface is quite simple: innotop expects the plugin to be
+an object-oriented module it can call certain methods on. The methods are
+.IP "new(%variables)" 4
+.IX Item "new(%variables)"
+This is the plugin's constructor. It is passed a hash of innotop's variables,
+which it can manipulate (see \*(L"Plugin Variables\*(R"). It must return a reference
+to the newly created plugin object.
+.Sp
+At construction time, innotop has only loaded the general configuration and
+created the default built-in variables with their default contents (which is
+quite a lot). Therefore, the state of the program is exactly as in the innotop
+source code, plus the configuration variables from the \*(L"general\*(R" section in
+the config file.
+.Sp
+If your plugin manipulates the variables, it is changing global data, which is
+shared by innotop and all plugins. Plugins are loaded in the order they're
+listed in the config file. Your plugin may load before or after another plugin,
+so there is a potential for conflict or interaction between plugins if they
+modify data other plugins use or modify.
+.IP "\fIregister_for_events()\fR" 4
+.IX Item "register_for_events()"
+This method must return a list of events in which the plugin is interested, if
+any. See \*(L"Plugin Events\*(R" for the defined events. If the plugin returns an
+event that's not defined, the event is ignored.
+.IP "event handlers" 4
+.IX Item "event handlers"
+The plugin must implement a method named the same as each event for which it has
+registered. In other words, if the plugin returns qw(foo bar) from
+\&\fIregister_for_events()\fR, it must have \fIfoo()\fR and \fIbar()\fR methods. These methods are
+callbacks for the events. See \*(L"Plugin Events\*(R" for more details about each
+event.
+.SS "Plugin Variables"
+.IX Subsection "Plugin Variables"
+The plugin's constructor is passed a hash of innotop's variables, which it can
+manipulate. It is probably a good idea if the plugin object saves a copy of it
+for later use. The variables are defined in the innotop variable
+\&\f(CW%pluggable_vars\fR, and are as follows:
+.IP "action_for" 4
+.IX Item "action_for"
+A hashref of key mappings. These are innotop's global hot-keys.
+.IP "agg_funcs" 4
+.IX Item "agg_funcs"
+A hashref of functions that can be used for grouping. See \*(L"\s-1GROUPING\*(R"\s0.
+.IP "config" 4
+.IX Item "config"
+The global configuration hash.
+.IP "connections" 4
+.IX Item "connections"
+A hashref of connection specifications. These are just specifications of how to
+connect to a server.
+.IP "dbhs" 4
+.IX Item "dbhs"
+A hashref of innotop's database connections. These are actual \s-1DBI\s0 connection
+objects.
+.IP "filters" 4
+.IX Item "filters"
+A hashref of filters applied to table rows. See \*(L"\s-1FILTERS\*(R"\s0 for more.
+.IP "modes" 4
+.IX Item "modes"
+A hashref of modes. See \*(L"\s-1MODES\*(R"\s0 for more.
+.IP "server_groups" 4
+.IX Item "server_groups"
+A hashref of server groups. See \*(L"\s-1SERVER GROUPS\*(R"\s0.
+.IP "tbl_meta" 4
+.IX Item "tbl_meta"
+A hashref of innotop's table meta-data, with one entry per table (see
+\&\*(L"\s-1TABLES\*(R"\s0 for more information).
+.IP "trans_funcs" 4
+.IX Item "trans_funcs"
+A hashref of transformation functions. See \*(L"\s-1TRANSFORMATIONS\*(R"\s0.
+.IP "var_sets" 4
+.IX Item "var_sets"
+A hashref of variable sets. See \*(L"\s-1VARIABLE SETS\*(R"\s0.
+.SS "Plugin Events"
+.IX Subsection "Plugin Events"
+Each event is defined somewhere in the innotop source code. When innotop runs
+that code, it executes the callback function for each plugin that expressed its
+interest in the event. innotop passes some data for each event. The events are
+defined in the \f(CW%event_listener_for\fR variable, and are as follows:
+.ie n .IP "extract_values($set, $cur, $pre, $tbl)" 4
+.el .IP "extract_values($set, \f(CW$cur\fR, \f(CW$pre\fR, \f(CW$tbl\fR)" 4
+.IX Item "extract_values($set, $cur, $pre, $tbl)"
+This event occurs inside the function that extracts values from a data source.
+The arguments are the set of values, the current values, the previous values,
+and the table name.
+.IP "set_to_tbl" 4
+.IX Item "set_to_tbl"
+Events are defined at many places in this subroutine, which is responsible for
+turning an arrayref of hashrefs into an arrayref of lines that can be printed to
+the screen. The events all pass the same data: an arrayref of rows and the name
+of the table being created. The events are set_to_tbl_pre_filter,
+set_to_tbl_pre_sort,set_to_tbl_pre_group, set_to_tbl_pre_colorize,
+set_to_tbl_pre_transform, set_to_tbl_pre_pivot, set_to_tbl_pre_create,
+set_to_tbl_post_create.
+.IP "draw_screen($lines)" 4
+.IX Item "draw_screen($lines)"
+This event occurs inside the subroutine that prints the lines to the screen.
+\&\f(CW$lines\fR is an arrayref of strings.
+.SS "Simple Plugin Example"
+.IX Subsection "Simple Plugin Example"
+The easiest way to explain the plugin functionality is probably with a simple
+example. The following module adds a column to the beginning of every table and
+sets its value to 1. (If you copy and paste this example code, be sure to remove
+the first space from each line; lines such as '# description' must not start with
+whitespace).
+.PP
+.Vb 2
+\& use strict;
+\& use warnings FATAL => \*(Aqall\*(Aq;
+\&
+\& package Innotop::Plugin::Example;
+\& # description: Adds an \*(Aqexample\*(Aq column to every table
+\&
+\& sub new {
+\& my ( $class, %vars ) = @_;
+\& # Store reference to innotop\*(Aqs variables in $self
+\& my $self = bless { %vars }, $class;
+\&
+\& # Design the example column
+\& my $col = {
+\& hdr => \*(AqExample\*(Aq,
+\& just => \*(Aq\*(Aq,
+\& dec => 0,
+\& num => 1,
+\& label => \*(AqExample\*(Aq,
+\& src => \*(Aqexample\*(Aq, # Get data from this column in the data source
+\& tbl => \*(Aq\*(Aq,
+\& trans => [],
+\& };
+\&
+\& # Add the column to every table.
+\& my $tbl_meta = $vars{tbl_meta};
+\& foreach my $tbl ( values %$tbl_meta ) {
+\& # Add the column to the list of defined columns
+\& $tbl\->{cols}\->{example} = $col;
+\& # Add the column to the list of visible columns
+\& unshift @{$tbl\->{visible}}, \*(Aqexample\*(Aq;
+\& }
+\&
+\& # Be sure to return a reference to the object.
+\& return $self;
+\& }
+\&
+\& # I\*(Aqd like to be called when a data set is being rendered into a table, please.
+\& sub register_for_events {
+\& my ( $self ) = @_;
+\& return qw(set_to_tbl_pre_filter);
+\& }
+\&
+\& # This method will be called when the event fires.
+\& sub set_to_tbl_pre_filter {
+\& my ( $self, $rows, $tbl ) = @_;
+\& # Set the example column\*(Aqs data source to the value 1.
+\& foreach my $row ( @$rows ) {
+\& $row\->{example} = 1;
+\& }
+\& }
+\&
+\& 1;
+.Ve
+.SS "Plugin Editor"
+.IX Subsection "Plugin Editor"
+The plugin editor lets you view the plugins innotop discovered and activate or
+deactivate them. Start the editor by pressing $ to start the configuration
+editor from any mode. Press the 'p' key to start the plugin editor. You'll see
+a list of plugins innotop discovered. You can use the 'j' and 'k' keys to move
+the highlight to the desired one, then press the * key to toggle it active or
+inactive. Exit the editor and restart innotop for the changes to take effect.
+.SH "SQL STATEMENTS"
+.IX Header "SQL STATEMENTS"
+innotop uses a limited set of \s-1SQL\s0 statements to retrieve data from MySQL for
+display. The statements are customized depending on the server version against
+which they are executed; for example, on MySQL 5 and newer, \s-1INNODB_STATUS\s0
+executes \*(L"\s-1SHOW ENGINE INNODB STATUS\*(R",\s0 while on earlier versions it executes
+\&\*(L"\s-1SHOW INNODB STATUS\*(R". \s0 The statements are as follows:
+.PP
+.Vb 10
+\& Statement SQL executed
+\& =================== ===============================
+\& INDEX_STATISTICS SELECT * FROM INFORMATION_SCHEMA.INDEX_STATISTICS
+\& INNODB_STATUS SHOW [ENGINE] INNODB STATUS
+\& KILL_CONNECTION KILL
+\& KILL_QUERY KILL QUERY
+\& OPEN_TABLES SHOW OPEN TABLES
+\& PROCESSLIST SHOW FULL PROCESSLIST
+\& SHOW_MASTER_LOGS SHOW MASTER LOGS
+\& SHOW_MASTER_STATUS SHOW MASTER STATUS
+\& SHOW_SLAVE_STATUS SHOW SLAVE STATUS
+\& SHOW_STATUS SHOW [GLOBAL] STATUS
+\& SHOW_VARIABLES SHOW [GLOBAL] VARIABLES
+\& TABLE_STATISTICS SELECT * FROM INFORMATION_SCHEMA.TABLE_STATISTICS
+.Ve
+.SH "DATA SOURCES"
+.IX Header "DATA SOURCES"
+Each time innotop extracts values to create a table (see \*(L"\s-1EXPRESSIONS\*(R"\s0 and
+\&\*(L"\s-1TABLES\*(R"\s0), it does so from a particular data source. Largely because of the
+complex data extracted from \s-1SHOW INNODB STATUS,\s0 this is slightly messy. \s-1SHOW
+INNODB STATUS\s0 contains a mixture of single values and repeated values that form
+nested data sets.
+.PP
+Whenever innotop fetches data from MySQL, it adds two extra bits to each set:
+cxn and Uptime_hires. cxn is the name of the connection from which the data
+came. Uptime_hires is a high-resolution version of the server's Uptime status
+variable, which is important if your \*(L"interval\*(R" setting is sub-second.
+.PP
+Here are the kinds of data sources from which data is extracted:
+.IP "\s-1STATUS_VARIABLES\s0" 4
+.IX Item "STATUS_VARIABLES"
+This is the broadest category, into which the most kinds of data fall. It
+begins with the combination of \s-1SHOW STATUS\s0 and \s-1SHOW VARIABLES,\s0 but other sources
+may be included as needed, for example, \s-1SHOW MASTER STATUS\s0 and \s-1SHOW SLAVE
+STATUS,\s0 as well as many of the non-repeated values from \s-1SHOW INNODB STATUS.\s0
+.IP "\s-1DEADLOCK_LOCKS\s0" 4
+.IX Item "DEADLOCK_LOCKS"
+This data is extracted from the transaction list in the \s-1LATEST DETECTED DEADLOCK\s0
+section of \s-1SHOW INNODB STATUS. \s0 It is nested two levels deep: transactions, then
+locks.
+.IP "\s-1DEADLOCK_TRANSACTIONS\s0" 4
+.IX Item "DEADLOCK_TRANSACTIONS"
+This data is from the transaction list in the \s-1LATEST DETECTED DEADLOCK\s0
+section of \s-1SHOW INNODB STATUS. \s0 It is nested one level deep.
+.IP "\s-1EXPLAIN\s0" 4
+.IX Item "EXPLAIN"
+This data is from the result set returned by \s-1EXPLAIN.\s0
+.IP "\s-1INNODB_BLOCKED_BLOCKER\s0" 4
+.IX Item "INNODB_BLOCKED_BLOCKER"
+This data is from the \s-1INFORMATION_SCHEMA\s0 tables related to InnoDB locks and
+the processlist.
+.IP "\s-1INNODB_TRANSACTIONS\s0" 4
+.IX Item "INNODB_TRANSACTIONS"
+This data is from the \s-1TRANSACTIONS\s0 section of \s-1SHOW INNODB STATUS.\s0
+.IP "\s-1IO_THREADS\s0" 4
+.IX Item "IO_THREADS"
+This data is from the list of threads in the the \s-1FILE I/O\s0 section of \s-1SHOW INNODB
+STATUS.\s0
+.IP "\s-1INNODB_LOCKS\s0" 4
+.IX Item "INNODB_LOCKS"
+This data is from the \s-1TRANSACTIONS\s0 section of \s-1SHOW INNODB STATUS\s0 and is nested
+two levels deep.
+.IP "\s-1MASTER_SLAVE\s0" 4
+.IX Item "MASTER_SLAVE"
+This data is from the combination of \s-1SHOW MASTER STATUS\s0 and \s-1SHOW SLAVE STATUS.\s0
+.IP "\s-1OPEN_TABLES\s0" 4
+.IX Item "OPEN_TABLES"
+This data is from \s-1SHOW OPEN TABLES.\s0
+.IP "\s-1PROCESSLIST\s0" 4
+.IX Item "PROCESSLIST"
+This data is from \s-1SHOW FULL PROCESSLIST.\s0
+.IP "\s-1PROCESSLIST_STATS\s0" 4
+.IX Item "PROCESSLIST_STATS"
+This data is from \s-1SHOW FULL PROCESSLIST\s0 and computes stats such as the maximum time
+a user query has been running, and how many user queries are running. A \*(L"user
+query\*(R" excludes replication threads.
+.IP "\s-1OS_WAIT_ARRAY\s0" 4
+.IX Item "OS_WAIT_ARRAY"
+This data is from the \s-1SEMAPHORES\s0 section of \s-1SHOW INNODB STATUS\s0 and is nested one
+level deep. It comes from the lines that look like this:
+.Sp
+.Vb 1
+\& \-\-Thread 1568861104 has waited at btr0cur.c line 424 ....
+.Ve
+.SH "MYSQL PRIVILEGES"
+.IX Header "MYSQL PRIVILEGES"
+.IP "\(bu" 4
+You must connect to MySQL as a user who has the \s-1SUPER\s0 privilege for many of the
+functions.
+.IP "\(bu" 4
+If you don't have the \s-1SUPER\s0 privilege, you can still run some functions, but you
+won't necessarily see all the same data.
+.IP "\(bu" 4
+You need the \s-1PROCESS\s0 privilege to see the list of currently running queries in Q
+mode.
+.IP "\(bu" 4
+You need special privileges to start and stop slave servers.
+.IP "\(bu" 4
+You need appropriate privileges to create and drop the deadlock tables if needed
+(see \*(L"\s-1SERVER CONNECTIONS\*(R"\s0).
+.SH "SYSTEM REQUIREMENTS"
+.IX Header "SYSTEM REQUIREMENTS"
+You need Perl to run innotop, of course. You also need a few Perl modules: \s-1DBI,\s0
+DBD::mysql, Term::ReadKey, and Time::HiRes. These should be included with most
+Perl distributions, but in case they are not, I recommend using versions
+distributed with your operating system or Perl distribution, not from \s-1CPAN.\s0
+Term::ReadKey in particular has been known to cause problems if installed from
+\&\s-1CPAN.\s0
+.PP
+If you have Term::ANSIColor, innotop will use it to format headers more readably
+and compactly. (Under Microsoft Windows, you also need Win32::Console::ANSI for
+terminal formatting codes to be honored). If you install Term::ReadLine,
+preferably Term::ReadLine::Gnu, you'll get nice auto-completion support.
+.PP
+I run innotop on Gentoo GNU/Linux, Debian and Ubuntu, and I've had feedback from
+people successfully running it on Red Hat, CentOS, Solaris, and Mac \s-1OSX. I\s0
+don't see any reason why it won't work on other UNIX-ish operating systems, but
+I don't know for sure. It also runs on Windows under ActivePerl without
+problem.
+.PP
+innotop has been used on MySQL versions 3.23.58, 4.0.27, 4.1.0, 4.1.22, 5.0.26,
+5.1.15, and 5.2.3. If it doesn't run correctly for you, that is a bug that
+should be reported.
+.SH "FILES"
+.IX Header "FILES"
+\&\f(CW$HOMEDIR\fR/.innotop and/or /etc/innotop are used to store
+configuration information. Files include the configuration file innotop.conf,
+the core_dump file which contains verbose error messages if \*(L"debug\*(R" is
+enabled, and the plugins/ subdirectory.
+.SH "GLOSSARY OF TERMS"
+.IX Header "GLOSSARY OF TERMS"
+.IP "tick" 4
+.IX Item "tick"
+A tick is a refresh event, when innotop re-fetches data from connections and
+displays it.
+.SH "ACKNOWLEDGEMENTS"
+.IX Header "ACKNOWLEDGEMENTS"
+The following people and organizations are acknowledged for various reasons.
+Hopefully no one has been forgotten.
+.PP
+Aaron Racine,
+Allen K. Smith,
+Aurimas Mikalauskas,
+Bartosz Fenski,
+Brian Miezejewski,
+Christian Hammers,
+Cyril Scetbon,
+Dane Miller,
+David Multer,
+Dr. Frank Ullrich,
+Giuseppe Maxia,
+Google.com Site Reliability Engineers,
+Google Code,
+Jan Pieter Kunst,
+Jari Aalto,
+Jay Pipes,
+Jeremy Zawodny,
+Johan Idren,
+Kristian Kohntopp,
+Lenz Grimmer,
+Maciej Dobrzanski,
+Michiel Betel,
+MySQL \s-1AB,\s0
+Paul McCullagh,
+Sebastien Estienne,
+Sourceforge.net,
+Steven Kreuzer,
+The Gentoo MySQL Team,
+Trevor Price,
+Yaar Schnitman,
+and probably more people that have not been included.
+.PP
+(If your name has been misspelled, it's probably out of fear of putting
+international characters into this documentation; earlier versions of Perl might
+not be able to compile it then).
+.SH "COPYRIGHT, LICENSE AND WARRANTY"
+.IX Header "COPYRIGHT, LICENSE AND WARRANTY"
+This program is copyright (c) 2006 Baron Schwartz.
+Feedback and improvements are welcome.
+.PP
+\&\s-1THIS PROGRAM IS PROVIDED \*(L"AS IS\*(R" AND WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.\s0
+.PP
+This program is free software; you can redistribute it and/or modify it under
+the terms of the \s-1GNU\s0 General Public License as published by the Free Software
+Foundation, version 2; \s-1OR\s0 the Perl Artistic License. On \s-1UNIX\s0 and similar
+systems, you can issue `man perlgpl' or `man perlartistic' to read these
+licenses.
+.PP
+You should have received a copy of the \s-1GNU\s0 General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, \s-1MA 02111\-1307 USA.\s0
+.PP
+Execute innotop and press '!' to see this information at any time.
+.SH "AUTHOR"
+.IX Header "AUTHOR"
+Originally written by Baron Schwartz; currently maintained by Aaron Racine.
+.SH "BUGS"
+.IX Header "BUGS"
+You can report bugs, ask for improvements, and get other help and support at
+<https://github.com/innotop/innotop>. There are mailing lists, a source code
+browser, a bug tracker, etc. Please use these instead of contacting the
+maintainer or author directly, as it makes our job easier and benefits others if the
+discussions are permanent and public. Of course, if you need to contact us in
+private, please do.
diff --git a/debian/additions/mariadb.cnf b/debian/additions/mariadb.cnf
new file mode 100644
index 0000000..94d8f10
--- /dev/null
+++ b/debian/additions/mariadb.cnf
@@ -0,0 +1,23 @@
+# The MariaDB configuration file
+#
+# The MariaDB/MySQL tools read configuration files in the following order:
+# 1. "/etc/mysql/mariadb.cnf" (this file) to set global defaults,
+# 2. "/etc/mysql/conf.d/*.cnf" to set global options.
+# 3. "/etc/mysql/mariadb.conf.d/*.cnf" to set MariaDB-only options.
+# 4. "~/.my.cnf" to set user-specific options.
+#
+# If the same option is defined multiple times, the last one will apply.
+#
+# One can use all long options that the program supports.
+# Run program with --help to get a list of available options and with
+# --print-defaults to see which it would actually understand and use.
+
+#
+# This group is read both both by the client and the server
+# use it for options that affect everything
+#
+[client-server]
+
+# Import all .cnf files from configuration directory
+!includedir /etc/mysql/conf.d/
+!includedir /etc/mysql/mariadb.conf.d/
diff --git a/debian/additions/mariadb.conf.d/50-client.cnf b/debian/additions/mariadb.conf.d/50-client.cnf
new file mode 100644
index 0000000..b509f19
--- /dev/null
+++ b/debian/additions/mariadb.conf.d/50-client.cnf
@@ -0,0 +1,25 @@
+#
+# This group is read by the client library
+# Use it for options that affect all clients, but not the server
+#
+
+[client]
+# Default is Latin1, if you need UTF-8 set this (also in server section)
+default-character-set = utf8mb4
+
+# socket location
+socket = /var/run/mysqld/mysqld.sock
+
+# Example of client certificate usage
+# ssl-cert=/etc/mysql/client-cert.pem
+# ssl-key=/etc/mysql/client-key.pem
+#
+# Allow only TLS encrypted connections
+# ssl-verify-server-cert=on
+
+# This group is *never* read by mysql client library, though this
+# /etc/mysql/mariadb.cnf.d/client.cnf file is not read by Oracle MySQL
+# client anyway.
+# If you use the same .cnf file for MySQL and MariaDB,
+# use it for MariaDB-only client options
+[client-mariadb]
diff --git a/debian/additions/mariadb.conf.d/50-mysql-clients.cnf b/debian/additions/mariadb.conf.d/50-mysql-clients.cnf
new file mode 100644
index 0000000..55cfda2
--- /dev/null
+++ b/debian/additions/mariadb.conf.d/50-mysql-clients.cnf
@@ -0,0 +1,24 @@
+#
+# These groups are read by MariaDB command-line tools
+# Use it for options that affect only one utility
+#
+
+[mysql]
+# Default is Latin1, if you need UTF-8 set this (also in server section)
+default-character-set = utf8mb4
+
+[mysql_upgrade]
+
+[mysqladmin]
+
+[mysqlbinlog]
+
+[mysqlcheck]
+
+[mysqldump]
+
+[mysqlimport]
+
+[mysqlshow]
+
+[mysqlslap]
diff --git a/debian/additions/mariadb.conf.d/50-mysqld_safe.cnf b/debian/additions/mariadb.conf.d/50-mysqld_safe.cnf
new file mode 100644
index 0000000..141d51f
--- /dev/null
+++ b/debian/additions/mariadb.conf.d/50-mysqld_safe.cnf
@@ -0,0 +1,30 @@
+# NOTE: This file is read only by the traditional SysV init script, not systemd.
+# MariaDB systemd does _not_ utilize mysqld_safe nor read this file.
+#
+# For similar behaviour, systemd users should create the following file:
+# /etc/systemd/system/mariadb.service.d/migrated-from-my.cnf-settings.conf
+#
+# To achieve the same result as the default 50-mysqld_safe.cnf, please create
+# /etc/systemd/system/mariadb.service.d/migrated-from-my.cnf-settings.conf
+# with the following contents:
+#
+# [Service]
+# User=mysql
+# StandardOutput=syslog
+# StandardError=syslog
+# SyslogFacility=daemon
+# SyslogLevel=err
+# SyslogIdentifier=mysqld
+#
+# For more information, please read https://mariadb.com/kb/en/mariadb/systemd/
+#
+
+[mysqld_safe]
+# This will be passed to all mysql clients
+# It has been reported that passwords should be enclosed with ticks/quotes
+# especially if they contain "#" chars...
+# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
+socket = /var/run/mysqld/mysqld.sock
+nice = 0
+skip_log_error
+syslog
diff --git a/debian/additions/mariadb.conf.d/50-server.cnf b/debian/additions/mariadb.conf.d/50-server.cnf
new file mode 100644
index 0000000..ee30148
--- /dev/null
+++ b/debian/additions/mariadb.conf.d/50-server.cnf
@@ -0,0 +1,134 @@
+#
+# These groups are read by MariaDB server.
+# Use it for options that only the server (but not clients) should see
+#
+# See the examples of server my.cnf files in /usr/share/mysql/
+#
+
+# this is read by the standalone daemon and embedded servers
+[server]
+
+# this is only for the mysqld standalone daemon
+[mysqld]
+
+#
+# * Basic Settings
+#
+user = mysql
+pid-file = /var/run/mysqld/mysqld.pid
+socket = /var/run/mysqld/mysqld.sock
+port = 3306
+basedir = /usr
+datadir = /var/lib/mysql
+tmpdir = /tmp
+lc-messages-dir = /usr/share/mysql
+skip-external-locking
+
+# Instead of skip-networking the default is now to listen only on
+# localhost which is more compatible and is not less secure.
+bind-address = 127.0.0.1
+
+#
+# * Fine Tuning
+#
+key_buffer_size = 16M
+max_allowed_packet = 16M
+thread_stack = 192K
+thread_cache_size = 8
+# This replaces the startup script and checks MyISAM tables if needed
+# the first time they are touched
+myisam_recover_options = BACKUP
+#max_connections = 100
+#table_cache = 64
+#thread_concurrency = 10
+
+#
+# * Query Cache Configuration
+#
+query_cache_limit = 1M
+query_cache_size = 16M
+
+#
+# * Logging and Replication
+#
+# Both location gets rotated by the cronjob.
+# Be aware that this log type is a performance killer.
+# As of 5.1 you can enable the log at runtime!
+#general_log_file = /var/log/mysql/mysql.log
+#general_log = 1
+#
+# Error log - should be very few entries.
+#
+log_error = /var/log/mysql/error.log
+#
+# Enable the slow query log to see queries with especially long duration
+#slow_query_log_file = /var/log/mysql/mariadb-slow.log
+#long_query_time = 10
+#log_slow_rate_limit = 1000
+#log_slow_verbosity = query_plan
+#log-queries-not-using-indexes
+#
+# The following can be used as easy to replay backup logs or for replication.
+# note: if you are setting up a replication slave, see README.Debian about
+# other settings you may need to change.
+#server-id = 1
+#log_bin = /var/log/mysql/mysql-bin.log
+expire_logs_days = 10
+max_binlog_size = 100M
+#binlog_do_db = include_database_name
+#binlog_ignore_db = exclude_database_name
+
+#
+# * InnoDB
+#
+# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
+# Read the manual for more InnoDB related options. There are many!
+
+#
+# * Security Features
+#
+# Read the manual, too, if you want chroot!
+# chroot = /var/lib/mysql/
+#
+# For generating SSL certificates you can use for example the GUI tool "tinyca".
+#
+# ssl-ca=/etc/mysql/cacert.pem
+# ssl-cert=/etc/mysql/server-cert.pem
+# ssl-key=/etc/mysql/server-key.pem
+#
+# Accept only connections using the latest and most secure TLS protocol version.
+# ..when MariaDB is compiled with OpenSSL:
+# ssl-cipher=TLSv1.2
+# ..when MariaDB is compiled with YaSSL (default in Debian):
+# ssl=on
+
+#
+# * Character sets
+#
+# MySQL/MariaDB default is Latin1, but in Debian we rather default to the full
+# utf8 4-byte character set. See also client.cnf
+#
+character-set-server = utf8mb4
+collation-server = utf8mb4_general_ci
+
+#
+# * Unix socket authentication plugin is built-in since 10.0.22-6
+#
+# Needed so the root database user can authenticate without a password but
+# only when running as the unix root user.
+#
+# Also available for other users if required.
+# See https://mariadb.com/kb/en/unix_socket-authentication-plugin/
+
+# this is only for embedded server
+[embedded]
+
+# This group is only read by MariaDB servers, not by MySQL.
+# If you use the same .cnf file for MySQL and MariaDB,
+# you can put MariaDB-only options here
+[mariadb]
+
+# This group is only read by MariaDB-10.1 servers.
+# If you use the same .cnf file for MariaDB of different versions,
+# use this group for options that older servers don't understand
+[mariadb-10.1]
diff --git a/debian/additions/mariadb.conf.d/60-galera.cnf b/debian/additions/mariadb.conf.d/60-galera.cnf
new file mode 100644
index 0000000..7249a0f
--- /dev/null
+++ b/debian/additions/mariadb.conf.d/60-galera.cnf
@@ -0,0 +1,19 @@
+#
+# * Galera-related settings
+#
+[galera]
+# Mandatory settings
+#wsrep_on=ON
+#wsrep_provider=
+#wsrep_cluster_address=
+#binlog_format=row
+#default_storage_engine=InnoDB
+#innodb_autoinc_lock_mode=2
+#
+# Allow server to accept connections on all interfaces.
+#
+#bind-address=0.0.0.0
+#
+# Optional setting
+#wsrep_slave_threads=1
+#innodb_flush_log_at_trx_commit=0
diff --git a/debian/additions/mysqlreport b/debian/additions/mysqlreport
new file mode 100755
index 0000000..64eaf93
--- /dev/null
+++ b/debian/additions/mysqlreport
@@ -0,0 +1,1626 @@
+#!/usr/bin/perl -w
+
+# mysqlreport v4.0 Oct 23 2015
+# http://hackmysql.com/mysqlreport
+
+# mysqlreport makes an easy-to-read report of important MySQL/MariaDB status values.
+# Copyright 2006-2008 Daniel Nichter
+# Copyright 2012-2015 Jean Weisbuch
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# The GNU General Public License is available at:
+# http://www.gnu.org/copyleft/gpl.html
+
+use strict;
+use File::Temp qw(tempfile);
+use DBI;
+use Getopt::Long;
+eval { require Term::ReadKey; };
+my $RK = ($@ ? 0 : 1);
+
+sub have_op;
+
+my $WIN = ($^O eq 'MSWin32' ? 1 : 0);
+my %op;
+my %mycnf; # ~/.my.cnf
+my ($tmpfile_fh, $tmpfile);
+my ($stat_name, $stat_val, $stat_label);
+my $MySQL_version;
+my (%stats, %vars); # SHOW STATUS, SHOW VARIABLES
+my (%DMS_vals, %Com_vals, %ib_vals);
+my $dbh;
+my ($questions, $key_read_ratio, $key_write_ratio, $dms, $slow_query_t);
+my ($key_cache_block_size, $key_buffer_used, $key_buffer_usage);
+my ($qc_mem_used, $qc_hi_r, $qc_ip_r); # Query Cache
+my ($ib_bp_used, $ib_bp_total, $ib_bp_read_ratio);
+my ($relative_live, $relative_infiles);
+my $real_uptime;
+my (%stats_present, %stats_past); # For relative reports
+my ($pagecache_read_ratio, $pagecache_write_ratio, $pagecache_block_size, $pagecache_buffer_used, $pagecache_buffer_usage); # AriaDB pagecache stats
+my ($binlog_cache_ratio, $binlog_stmt_cache_ratio); # binary log cache
+my $dbms;
+my ($rows, $rows_using_indexes);
+
+GetOptions (
+ \%op,
+ "user=s",
+ "password:s",
+ "host=s",
+ "port=s",
+ "socket=s",
+ "no-mycnf",
+ "infile|in=s",
+ "outfile=s",
+ "flush-status",
+ "email=s",
+ "r|relative:i",
+ "c|report-count=i",
+ "detach",
+ "help|?",
+ "debug"
+);
+
+show_help_and_exit() if $op{'help'};
+
+get_user_mycnf() unless $op{'no-mycnf'};
+
+# Command line options override ~/.my.cnf
+$mycnf{'host'} = $op{'host'} if have_op 'host';
+$mycnf{'port'} = $op{'port'} if have_op 'port';
+$mycnf{'socket'} = $op{'socket'} if have_op 'socket';
+$mycnf{'user'} = $op{'user'} if have_op 'user';
+
+$mycnf{'user'} ||= $ENV{'USER'};
+
+if(exists $op{'password'})
+{
+ if($op{'password'} eq '') # Prompt for password
+ {
+ Term::ReadKey::ReadMode(2) if $RK;
+ print "Password for database user $mycnf{'user'}: ";
+ chomp($mycnf{'pass'} = <STDIN>);
+ Term::ReadKey::ReadMode(0), print "\n" if $RK;
+ }
+ else { $mycnf{'pass'} = $op{'password'}; } # Use password given on command line
+}
+
+$op{'com'} ||= 3;
+$op{'c'} ||= 1; # Used in collect_reports() if --r given integer value
+
+$relative_live = 0;
+$relative_infiles = 0;
+
+if(defined $op{'r'})
+{
+ if($op{r}) { $relative_live = 1; } # if -r was given an integer value
+ else { $relative_infiles = 1; }
+}
+
+# The report is written to a tmp file first.
+# Later it will be moved to $op{'outfile'} or emailed $op{'email'} if needed.
+($tmpfile_fh, $tmpfile) = tempfile() or die "Cannot open temporary file for writing: $!\n";
+
+if($op{'detach'})
+{
+ $SIG{'TERM'} = 'sig_handler';
+
+ if(fork())
+ {
+ print "mysqlreport has forked and detached.\n";
+ print "While running detached, mysqlreport writes reports to '$tmpfile'.\n";
+
+ exit;
+ }
+
+ open(STDIN, "</dev/null");
+ open(STDOUT, "> $tmpfile") or die "Cannot dup STDOUT: $!\n";
+ open(STDERR, "> $tmpfile") or die "Cannot dup STDERR: $!\n";
+}
+
+select $tmpfile_fh;
+$| = 1 if ($op{'detach'} || $relative_live);
+
+print "tmp file: $tmpfile\n" if $op{debug};
+
+# Connect to MySQL/MariaDB
+if(!$op{'infile'} && !$relative_infiles)
+{
+ connect_to_MySQL();
+}
+
+my $have_innodb_vals = 1; # This might be set to 0 later in get_MySQL_version()
+my $have_aria_vals = 0;
+my $have_subquerycache_vals = 0;
+my $have_binlog_vals = 0;
+my $have_tokudb_engine = 0;
+my $use_thread_pool = 0;
+my $use_xtradb = 0;
+
+if(defined $op{'r'})
+{
+ if($relative_live)
+ {
+ print STDERR "mysqlreport is writing relative reports to '$tmpfile'.\n" unless $op{'detach'};
+ get_MySQL_version();
+ collect_reports();
+ }
+
+ if($relative_infiles) { read_relative_infiles(); }
+}
+else
+{
+ if(!$op{'infile'})
+ {
+ get_MySQL_version();
+ get_vals();
+ get_vars();
+ }
+ else
+ {
+ read_infile($op{'infile'});
+ }
+
+ get_Com_values();
+
+ set_myisam_vals();
+ set_ib_vals() if $have_innodb_vals;
+ set_aria_vals() if $have_aria_vals;
+ set_subquerycache_vals() if $have_subquerycache_vals;
+ set_binlog_vals() if $have_binlog_vals;
+
+ write_report();
+}
+
+exit_tasks_and_cleanup();
+
+exit;
+
+#
+# Subroutines
+#
+sub show_help_and_exit
+{
+ print <<"HELP";
+mysqlreport v4.0 Oct 23 2015
+mysqlreport makes an easy-to-read report of important MySQL/MariaDB status values.
+
+Command line options (abbreviations work):
+ --user USER Connect to MySQL as USER
+ --password PASS Use PASS or prompt for MySQL user's password
+ --host ADDRESS Connect to MySQL at ADDRESS
+ --port PORT Connect to MySQL at PORT
+ --socket SOCKET Connect to MySQL at SOCKET
+ --no-mycnf Don't read ~/.my.cnf
+ --infile FILE Read status values from FILE instead of MySQL
+ --outfile FILE Write report to FILE
+ --email ADDRESS Email report to ADDRESS (doesn't work on Windows)
+ --flush-status Issue FLUSH STATUS; after getting current values
+ --relative X Generate relative reports. If X is an integer,
+ reports are live from the MySQL server X seconds apart.
+ If X is a list of infiles (file1 file2 etc.),
+ reports are generated from the infiles in the order
+ that they are given.
+ --report-count N Collect N number of live relative reports (default 1)
+ --detach Fork and detach from terminal (run in background)
+ --help Prints this
+ --debug Print debugging information
+
+Visit http://hackmysql.com/mysqlreport for more information.
+HELP
+
+ exit;
+}
+
+sub get_user_mycnf
+{
+ print "get_user_mycnf\n" if $op{debug};
+
+ return if $WIN;
+ open MYCNF, "$ENV{HOME}/.my.cnf" or return;
+ while(<MYCNF>)
+ {
+ if(/^(.+?)\s*=\s*"?(.+?)"?\s*$/)
+ {
+ $mycnf{$1} = $2;
+ print "get_user_mycnf: read '$1 = $2'\n" if $op{debug};
+ }
+ }
+ $mycnf{'pass'} ||= $mycnf{'password'} if exists $mycnf{'password'};
+ close MYCNF;
+}
+
+sub connect_to_MySQL
+{
+ print "connect_to_MySQL\n" if $op{debug};
+
+ my $dsn;
+
+ if($mycnf{'socket'} && -S $mycnf{'socket'})
+ {
+ $dsn = "DBI:mysql:mysql_socket=$mycnf{socket}";
+ }
+ elsif($mycnf{'host'})
+ {
+ $dsn = "DBI:mysql:host=$mycnf{host}" . ($mycnf{port} ? ";port=$mycnf{port}" : "");
+ }
+ else
+ {
+ $dsn = "DBI:mysql:host=localhost";
+ }
+
+ print "connect_to_MySQL: DBI DSN: $dsn\n" if $op{debug};
+
+ $dbh = DBI->connect($dsn, $mycnf{'user'}, $mycnf{'pass'}) or die;
+}
+
+sub collect_reports
+{
+ print "collect_reports\n" if $op{debug};
+
+ my $i;
+
+ get_vals();
+ get_vars();
+
+ get_Com_values();
+
+ %stats_past = %stats;
+
+ set_myisam_vals();
+ set_ib_vals() if $have_innodb_vals;
+ set_aria_vals() if $have_aria_vals;
+ set_subquerycache_vals() if $have_subquerycache_vals;
+ set_binlog_vals() if $have_binlog_vals;
+
+ print "#\n# Beginning report, 0 0:0:0\n#\n";
+
+ write_report();
+
+ for($i = 0; $i < $op{'c'}; $i++)
+ {
+ $dbh->disconnect();
+
+ sleep($op{'r'});
+
+ connect_to_MySQL();
+
+ print "\n#\n# Interval report " , $i + 1 , ", +", sec_to_dhms(($i + 1) * $op{'r'}), "\n#\n";
+
+ get_vals();
+
+ write_relative_report();
+ }
+}
+
+sub read_relative_infiles
+{
+ print "read_relative_infiles\n" if $op{debug};
+
+ my $slurp; # Used to check infiles for multiple sets of status values
+ my $n_stats; # Number of multiple sets of status values in an infile
+ my $infile;
+ my $report_n; # Report number
+
+ $report_n = 1;
+
+ foreach $infile (@ARGV)
+ {
+ # Read all of infile into $slurp
+ open INFILE, "< $infile" or warn and next;
+ $slurp = do { local $/; <INFILE> };
+ close INFILE;
+
+ $n_stats = 0;
+
+ # Count number of status value sets
+ $n_stats++ while $slurp =~ /Aborted_clients/g;
+
+ print "read_relative_infiles: found $n_stats sets of status values in file '$infile'\n"
+ if $op{debug};
+
+ if($n_stats == 1)
+ {
+ read_infile($infile);
+ relative_infile_report($report_n++);
+ }
+
+ if($n_stats > 1)
+ {
+ my @tmpfile_fh;
+ my @tmpfile_name;
+ my $i;
+ my $stat_n; # Status value set number
+
+ # Create a tmp file for each set of status values
+ for($i = 0; $i < $n_stats; $i++)
+ {
+ my ($fh, $name) = tempfile()
+ or die "read_relative_infiles: cannot open temporary file for writing: $!\n";
+
+ push(@tmpfile_fh, $fh);
+ push(@tmpfile_name, $name);
+
+ print "read_relative_infiles: created tmp file '$name' for set $i\n" if $op{debug};
+ }
+
+ $i = 0;
+ $stat_n = 0;
+
+ select $tmpfile_fh[$i];
+
+ # Read infile again and copy each set of status values to separate tmp files
+ open INFILE, "< $infile" or warn and next;
+ while(<INFILE>)
+ {
+ next if /^\+/;
+ next if /^$/;
+
+ # The infile must begin with the system variable values.
+ # Therefore, the first occurrence of Aborted_clients indicates the beginning
+ # of the first set of status values if no sets have occurred yet ($stat_n == 0).
+ # In this case, the following status values are printed to the current fh,
+ # along with the system variable values read thus far, until Aborted_clients
+ # occurs again. Then begins the second and subsequent sets of status values.
+
+ if(/Aborted_clients/)
+ {
+ print and next if $stat_n++ == 0;
+ select $tmpfile_fh[++$i];
+ }
+
+ print;
+ }
+ close INFILE;
+
+ # Re-select the main tmp file into which the reports are being written.
+ select $tmpfile_fh;
+
+ for($i = 0; $i < $n_stats; $i++)
+ {
+ close $tmpfile_fh[$i];
+
+ print "read_relative_infiles: reading set $i tmp file '$tmpfile_name[$i]'\n"
+ if $op{debug};
+
+ read_infile($tmpfile_name[$i]);
+ relative_infile_report($report_n++);
+
+ if($WIN) { `del $tmpfile_name[$i]`; }
+ else { `rm -f $tmpfile_name[$i]`; }
+
+ print "read_relative_infiles: deleted set $i tmp file '$tmpfile_name[$i]'\n"
+ if $op{debug};
+ }
+
+ } # if($n_stats > 1)
+ } # foreach $infile (@files)
+}
+
+sub relative_infile_report
+{
+ print "relative_infile_report\n" if $op{debug};
+
+ my $report_n = shift;
+
+ if($report_n == 1)
+ {
+ get_Com_values();
+
+ %stats_past = %stats;
+
+ set_myisam_vals();
+ set_ib_vals() if $have_innodb_vals;
+ set_aria_vals() if $have_aria_vals;
+ set_subquerycache_vals() if $have_subquerycache_vals;
+ set_binlog_vals() if $have_binlog_vals;
+
+ print "#\n# Beginning report, 0 0:0:0\n#\n";
+
+ write_report();
+ }
+ else
+ {
+ print "\n#\n# Interval report ", $report_n - 1, ", +",
+ sec_to_dhms($stats{Uptime} - $stats_past{Uptime}),
+ "\n#\n";
+
+ write_relative_report();
+ }
+}
+
+sub get_vals
+{
+ print "get_vals\n" if $op{debug};
+
+ my (@row, $query);
+
+ # Get status values
+ if($MySQL_version >= 50002)
+ {
+ $query = $dbh->prepare("SHOW GLOBAL STATUS;");
+ }
+ else
+ {
+ $query = $dbh->prepare("SHOW STATUS;");
+ }
+ $query->execute();
+ # To avoid problems if the variable capitalization would change (eg. TokuDB on MariaDB 5.5 => 10.0), the $stats index is forced to have its first char uppercase and the rest lowercase
+ while(@row = $query->fetchrow_array()) { $stats{ucfirst(lc($row[0]))} = $row[1]; }
+ $query->finish();
+
+ $real_uptime = $stats{'Uptime'};
+}
+
+sub get_vars
+{
+ print "get_vars\n" if $op{debug};
+
+ my (@row, $query);
+
+ # Get server system variables
+ $query = $dbh->prepare("SHOW VARIABLES;");
+ $query->execute();
+ while(@row = $query->fetchrow_array()) { $vars{$row[0]} = $row[1]; }
+ $query->finish();
+ # table_cache was renamed to table_open_cache in MySQL 5.1.3
+ if($MySQL_version >= 50103)
+ {
+ $vars{'table_cache'} = $vars{'table_open_cache'};
+ }
+ # log_slow_queries was renamed to slow_query_log in MySQL 5.1.29
+ if($MySQL_version >= 50129)
+ {
+ $vars{'log_slow_queries'} = $vars{'slow_query_log'};
+ }
+}
+
+sub read_infile
+{
+ print "read_infile\n" if $op{debug};
+
+ my $infile = shift;
+
+ # Default required system variable values if not set in INFILE.
+ # As of mysqlreport v3.5 the direct output from SHOW VARIABLES;
+ # can be put into INFILE instead. See http://hackmysql.com/mysqlreportdoc
+ # for details.
+ $vars{'version'} = "0.0.0" if !exists $vars{'version'};
+ $vars{'table_cache'} = 64 if !exists $vars{'table_cache'};
+ $vars{'max_connections'} = 100 if !exists $vars{'max_connections'};
+ $vars{'key_buffer_size'} = 8388600 if !exists $vars{'key_buffer_size'}; # 8M
+ $vars{'thread_cache_size'} = 0 if !exists $vars{'thread_cache_size'};
+ $vars{'tmp_table_size'} = 0 if !exists $vars{'tmp_table_size'};
+ $vars{'long_query_time'} = '?' if !exists $vars{'long_query_time'};
+ $vars{'log_slow_queries'} = '?' if !exists $vars{'log_slow_queries'};
+
+ # One should also add:
+ # key_cache_block_size
+ # query_cache_size
+ # to INFILE if needed.
+
+ open INFILE, "< $infile" or die "Cannot open INFILE '$infile': $!\n";
+
+ while(<INFILE>)
+ {
+ last if !defined $_;
+
+ next if /^\+/; # skip divider lines
+ next if /^$/; # skip blank lines
+
+ next until /(Aborted_clients|back_log|=)/;
+
+ if($1 eq 'Aborted_clients') # status values
+ {
+ print "read_infile: start stats\n" if $op{debug};
+
+ while($_)
+ {
+ chomp;
+ if(/([A-Za-z_]+)[\s\t|]+(\d+)/)
+ {
+ $stats{$1} = $2;
+ print "read_infile: save $1 = $2\n" if $op{debug};
+ }
+ else { print "read_infile: ignore '$_'\n" if $op{debug}; }
+
+ last if $1 eq 'Uptime'; # exit while() if end of status values
+ $_ = <INFILE>; # otherwise, read next line of status values
+ }
+ }
+ elsif($1 eq 'back_log') # system variable values
+ {
+ print "read_infile: start vars\n" if $op{debug};
+
+ while($_)
+ {
+ chomp;
+ if(/([A-Za-z_]+)[\s\t|]+([\w\.\-]+)/) # This will exclude some vars
+ { # like pid_file which we don't need
+ $vars{$1} = $2;
+ print "read_infile: save $1 = $2\n" if $op{debug};
+ }
+ else { print "read_infile: ignore '$_'\n" if $op{debug}; }
+
+ last if $1 eq 'wait_timeout'; # exit while() if end of vars
+ $_ = <INFILE>; # otherwise, read next line of vars
+ }
+ }
+ elsif($1 eq '=') # old style, manually added system variable values
+ {
+ print "read_infile: start old vars\n" if $op{debug};
+
+ while($_ && $_ =~ /=/)
+ {
+ chomp;
+ if(/^\s*(\w+)\s*=\s*([0-9.]+)(M*)\s*$/) # e.g.: key_buffer_size = 128M
+ {
+ $vars{$1} = ($3 ? $2 * 1024 * 1024 : $2);
+ print "read_infile: read '$_' as $1 = $vars{$1}\n" if $op{debug};
+ }
+ else { print "read_infile: ignore '$_'\n" if $op{debug}; }
+
+ $_ = <INFILE>; # otherwise, read next line of old vars
+ }
+
+ redo;
+ }
+ else
+ {
+ print "read_infile: unrecognized line: '$_'\n" if $op{debug};
+ }
+ }
+
+ close INFILE;
+
+ $real_uptime = $stats{'Uptime'};
+
+ $vars{'table_cache'} = $vars{'table_open_cache'} if exists $vars{'table_open_cache'};
+
+ get_MySQL_version();
+}
+
+sub get_MySQL_version
+{
+ print "get_MySQL_version\n" if $op{debug};
+
+ return if $MySQL_version;
+
+ my ($major, $minor, $patch);
+
+ if($op{'infile'} || $relative_infiles)
+ {
+ ($major, $minor, $patch) = ($vars{'version'} =~ /^(\d{1,2})\.(\d{1,2})\.(\d{1,2})/);
+ if($vars{'version'} =~ /^\d{1,2}\.\d{1,2}\.\d{1,2}-MariaDB/) {
+ print "MariaDB detected\n" if $op{debug};
+ $dbms = "MariaDB";
+ } else {
+ $dbms = "MySQL";
+ }
+ }
+ else
+ {
+ my (@row, $query);
+
+ $query = $dbh->prepare("SHOW VARIABLES LIKE 'version';");
+ $query->execute();
+ @row = $query->fetchrow_array();
+ $query->finish();
+ ($major, $minor, $patch) = ($row[1] =~ /^(\d{1,2})\.(\d{1,2})\.(\d{1,2})/);
+ if($row[1] =~ /^\d{1,2}\.\d{1,2}\.\d{1,2}-MariaDB/)
+ {
+ print "MariaDB detected\n" if $op{debug};
+ $dbms = "MariaDB";
+ }
+ else
+ {
+ $dbms = "MySQL";
+ }
+ }
+
+ # The major version number is kept as is while the minor version and the revision number are forced to 2 digits
+ # e.g.: 5.5.9 will be 50509, 10.0.5 will be 100005 and 10.1.23 will be 100123
+ $MySQL_version = sprintf("%d%02d%02d", $major, $minor, $patch);
+ print "Version $MySQL_version\n" if $op{debug};
+
+ # Innodb_ status values were added in 5.0.2
+ if($MySQL_version < 50002)
+ {
+ $have_innodb_vals = 0;
+ print "get_MySQL_version: no InnoDB reports because MySQL version is older than 5.0.2\n" if $op{debug};
+ } else {
+ $have_innodb_vals = $dbh->selectall_arrayref("SELECT SUPPORT FROM information_schema.engines WHERE ENGINE = 'InnoDB';", undef)->[0][0];
+ if(defined($have_innodb_vals) && ($have_innodb_vals eq "YES" || $have_innodb_vals eq "DEFAULT"))
+ {
+ print "InnoDB detected\n" if $op{debug};
+ $have_innodb_vals = 1;
+ } else {
+ print "InnoDB is not activated\n" if $op{debug};
+ $have_innodb_vals = 0;
+ }
+ }
+
+ if($dbms eq "MariaDB") {
+ $have_aria_vals = $dbh->selectall_arrayref("SELECT SUPPORT FROM information_schema.engines WHERE ENGINE = 'Aria';", undef)->[0][0];
+ if(defined($have_aria_vals) && $have_aria_vals eq "YES")
+ {
+ print "Aria engine detected\n" if $op{debug};
+ $have_aria_vals = 1;
+ } else {
+ $have_aria_vals = 0;
+ }
+
+ # MariaDB 5.3+, activated by default since 5.3.2
+ $have_subquerycache_vals = $dbh->selectall_arrayref("SELECT VARIABLE_VALUE REGEXP ',subquery_cache=on,|^subquery_cache=on,|,subquery_cache=on\$' AS SUBQUERY_CACHE FROM information_schema.global_variables WHERE VARIABLE_NAME = 'optimizer_switch';", undef)->[0][0];
+ if(defined($have_subquerycache_vals) && $have_subquerycache_vals eq "1")
+ {
+ print "Subquery cache is activated\n" if $op{debug};
+ $have_subquerycache_vals = 1;
+ } else {
+ $have_subquerycache_vals = 0;
+ }
+ }
+
+ if($MySQL_version >= 50000)
+ {
+ # These checks use the 'information_schema' virtual database that has been added on MySQL 5.0
+
+ # MariaDB 5.5.21+ and Percona Server 5.5.30+ use the same thread pool implementation
+ $use_thread_pool = $dbh->selectall_arrayref("SELECT VARIABLE_VALUE FROM information_schema.global_variables WHERE VARIABLE_NAME = 'thread_handling';", undef)->[0][0];
+ if(defined($use_thread_pool) && $use_thread_pool eq "pool-of-threads") {
+ print "Thread pool is used\n" if $op{debug};
+ $use_thread_pool = 1;
+ } else {
+ $use_thread_pool = 0;
+ }
+
+ $have_binlog_vals = $dbh->selectall_arrayref("SELECT VARIABLE_VALUE FROM information_schema.global_variables WHERE VARIABLE_NAME = 'log_bin';", undef)->[0][0];
+ if(defined($have_binlog_vals) && $have_binlog_vals eq "ON")
+ {
+ print "Binary log is activated\n" if $op{debug};
+ $have_binlog_vals = 1;
+ } else {
+ $have_binlog_vals = 0;
+ }
+
+ $have_tokudb_engine = $dbh->selectall_arrayref("SELECT SUPPORT FROM information_schema.engines WHERE ENGINE = 'TokuDB';", undef)->[0][0];
+ if(defined($have_tokudb_engine) && ($have_tokudb_engine eq "YES" || $have_tokudb_engine eq "DEFAULT"))
+ {
+ print "TokuDB detected\n" if $op{debug};
+ $have_tokudb_engine = 1;
+ } else {
+ $have_tokudb_engine = 0;
+ }
+
+ $use_xtradb = $dbh->selectall_arrayref("SELECT 1 FROM INFORMATION_SCHEMA.ENGINES WHERE ENGINE = 'InnoDB' AND COMMENT LIKE 'Percona-XtraDB%';", undef)->[0][0];
+ if(defined($use_xtradb) && $use_xtradb eq "1")
+ {
+ print "XtraDB detected\n" if $op{debug};
+ $use_xtradb = 1;
+ } else {
+ $use_xtradb = 0;
+ }
+ }
+}
+
+sub set_myisam_vals
+{
+ print "set_myisam_vals\n" if $op{debug};
+
+# should be moved elsewere
+ $questions = $stats{'Questions'};
+
+ $key_read_ratio = sprintf "%.2f",
+ ($stats{'Key_read_requests'} ?
+ 100 - ($stats{'Key_reads'} / $stats{'Key_read_requests'}) * 100 :
+ 0);
+
+ $key_write_ratio = sprintf "%.2f",
+ ($stats{'Key_write_requests'} ?
+ 100 - ($stats{'Key_writes'} / $stats{'Key_write_requests'}) * 100 :
+ 0);
+
+ $key_cache_block_size = (defined $vars{'key_cache_block_size'} ?
+ $vars{'key_cache_block_size'} :
+ 1024);
+
+ $key_buffer_used = $stats{'Key_blocks_used'} * $key_cache_block_size;
+
+ if(defined $stats{'Key_blocks_unused'}) # MySQL 4.1.2+
+ {
+ $key_buffer_usage = $vars{'key_buffer_size'} -
+ ($stats{'Key_blocks_unused'} * $key_cache_block_size);
+ }
+ else { $key_buffer_usage = -1; }
+
+ # Data Manipulation Statements: http://dev.mysql.com/doc/refman/5.0/en/data-manipulation.html
+ %DMS_vals =
+ (
+ SELECT => $stats{'Com_select'},
+ INSERT => $stats{'Com_insert'} + $stats{'Com_insert_select'},
+ REPLACE => $stats{'Com_replace'} + $stats{'Com_replace_select'},
+ UPDATE => $stats{'Com_update'} +
+ (exists $stats{'Com_update_multi'} ? $stats{'Com_update_multi'} : 0),
+ DELETE => $stats{'Com_delete'} +
+ (exists $stats{'Com_delete_multi'} ? $stats{'Com_delete_multi'} : 0)
+ );
+
+ $dms = $DMS_vals{SELECT} + $DMS_vals{INSERT} + $DMS_vals{REPLACE} + $DMS_vals{UPDATE} + $DMS_vals{DELETE};
+
+ $slow_query_t = format_u_time($vars{long_query_time});
+}
+
+sub set_ib_vals
+{
+ print "set_ib_vals\n" if $op{debug};
+
+ $ib_bp_used = ($stats{'Innodb_buffer_pool_pages_total'} -
+ $stats{'Innodb_buffer_pool_pages_free'}) *
+ $stats{'Innodb_page_size'};
+
+ $ib_bp_total = $stats{'Innodb_buffer_pool_pages_total'} * $stats{'Innodb_page_size'};
+
+ $ib_bp_read_ratio = sprintf "%.2f",
+ ($stats{'Innodb_buffer_pool_read_requests'} ?
+ 100 - ($stats{'Innodb_buffer_pool_reads'} /
+ $stats{'Innodb_buffer_pool_read_requests'}) * 100 :
+ 0);
+}
+
+sub set_aria_vals
+{
+ print "set_aria_vals\n" if $op{debug};
+
+ $pagecache_read_ratio = sprintf "%.2f",
+ ($stats{'Aria_pagecache_read_requests'} ?
+ 100 - ($stats{'Aria_pagecache_reads'} / $stats{'Aria_pagecache_read_requests'}) * 100 :
+ 0);
+
+ $pagecache_write_ratio = sprintf "%.2f",
+ ($stats{'Aria_pagecache_write_requests'} ?
+ 100 - ($stats{'Aria_pagecache_writes'} / $stats{'Aria_pagecache_write_requests'}) * 100 :
+ 0);
+
+ $pagecache_block_size = (defined $vars{'aria_block_size'} ?
+ $vars{'aria_block_size'} :
+ 1024);
+
+ $pagecache_buffer_used = $stats{'Aria_pagecache_blocks_used'} * $pagecache_block_size;
+
+ $pagecache_buffer_usage = $vars{'aria_pagecache_buffer_size'} -
+ ($stats{'Aria_pagecache_blocks_unused'} * $pagecache_block_size);
+}
+
+sub set_subquerycache_vals
+{
+ print "set_subquerycache_vals\n" if $op{debug};
+}
+
+sub set_binlog_vals
+{
+ print "set_binlog_vals\n" if $op{debug};
+
+ if($stats{'Binlog_cache_use'} gt 0) { $binlog_cache_ratio = $stats{'Binlog_cache_disk_use'} / $stats{'Binlog_cache_use'}; }
+ else { $binlog_cache_ratio = 0; }
+
+ if(defined($stats{'Binlog_stmt_cache_use'}) && $stats{'Binlog_stmt_cache_use'} gt 0) { $binlog_stmt_cache_ratio = $stats{'Binlog_stmt_cache_disk_use'} / $stats{'Binlog_stmt_cache_use'}; }
+ else { $binlog_stmt_cache_ratio = 0; }
+}
+
+sub write_relative_report
+{
+ print "write_relative_report\n" if $op{debug};
+
+ %stats_present = %stats;
+
+ for(keys %stats)
+ {
+ if($stats_past{$_} =~ /\d+/)
+ {
+ if($stats_present{$_} >= $stats_past{$_}) # Avoid negative values
+ {
+ $stats{$_} = $stats_present{$_} - $stats_past{$_};
+ }
+ }
+ }
+
+ # These values are either "at present" or "high water marks".
+ # Therefore, it is more logical to not relativize these values.
+ # Doing otherwise causes strange and misleading values.
+ $stats{'Key_blocks_used'} = $stats_present{'Key_blocks_used'};
+ $stats{'Open_tables'} = $stats_present{'Open_tables'};
+ $stats{'Max_used_connections'} = $stats_present{'Max_used_connections'};
+ $stats{'Threads_running'} = $stats_present{'Threads_running'};
+ $stats{'Threads_connected'} = $stats_present{'Threads_connected'};
+ $stats{'Threads_cached'} = $stats_present{'Threads_cached'};
+ $stats{'Qcache_free_blocks'} = $stats_present{'Qcache_free_blocks'};
+ $stats{'Qcache_total_blocks'} = $stats_present{'Qcache_total_blocks'};
+ $stats{'Qcache_free_memory'} = $stats_present{'Qcache_free_memory'};
+ if($have_innodb_vals)
+ {
+ $stats{'Innodb_page_size'} = $stats_present{'Innodb_page_size'};
+ $stats{'Innodb_buffer_pool_pages_data'} = $stats_present{'Innodb_buffer_pool_pages_data'};
+ $stats{'Innodb_buffer_pool_pages_dirty'} = $stats_present{'Innodb_buffer_pool_pages_dirty'};
+ $stats{'Innodb_buffer_pool_pages_free'} = $stats_present{'Innodb_buffer_pool_pages_free'};
+ $stats{'Innodb_buffer_pool_pages_latched'} = $stats_present{'Innodb_buffer_pool_pages_latched'};
+ $stats{'Innodb_buffer_pool_pages_misc'} = $stats_present{'Innodb_buffer_pool_pages_misc'};
+ $stats{'Innodb_buffer_pool_pages_total'} = $stats_present{'Innodb_buffer_pool_pages_total'};
+ $stats{'Innodb_data_pending_fsyncs'} = $stats_present{'Innodb_data_pending_fsyncs'};
+ $stats{'Innodb_data_pending_reads'} = $stats_present{'Innodb_data_pending_reads'};
+ $stats{'Innodb_data_pending_writes'} = $stats_present{'Innodb_data_pending_writes'};
+
+ # Innodb_row_lock_ values were added in MySQL 5.0.3
+ if($MySQL_version >= 50003)
+ {
+ $stats{'Innodb_row_lock_current_waits'} = $stats_present{'Innodb_row_lock_current_waits'};
+ $stats{'Innodb_row_lock_time_avg'} = $stats_present{'Innodb_row_lock_time_avg'};
+ $stats{'Innodb_row_lock_time_max'} = $stats_present{'Innodb_row_lock_time_max'};
+ }
+ }
+ if($have_aria_vals)
+ {
+ $stats{'Aria_pagecache_blocks_used'} = $stats_present{'Aria_pagecache_blocks_used'};
+ }
+
+ get_Com_values();
+
+ %stats_past = %stats_present;
+
+ set_myisam_vals();
+ set_ib_vals() if $have_innodb_vals;
+ set_aria_vals() if $have_aria_vals;
+ set_subquerycache_vals() if $have_subquerycache_vals;
+ set_binlog_vals() if $have_binlog_vals;
+
+ write_report();
+}
+
+sub write_report
+{
+ print "write_report\n" if $op{debug};
+
+ $~ = 'MYSQL_TIME', write;
+ $~ = 'KEY_BUFF_MAX', write;
+ if($key_buffer_usage != -1) { $~ = 'KEY_BUFF_USAGE', write }
+ $~ = 'KEY_RATIOS', write;
+ write_DTQ();
+ $~ = 'SLOW_DMS', write;
+ write_DMS();
+ write_Com();
+ write_Rows();
+ $~ = 'SAS', write;
+ write_qcache();
+ $~ = 'REPORT_END', write;
+ $~ = 'THREADS', write;
+ if($use_thread_pool)
+ {
+ $~ = 'THREADPOOL', write;
+ } else {
+ $~ = 'THREADPERCONNECTION', write;
+ }
+ $~ = 'TAB', write;
+
+ write_InnoDB() if $have_innodb_vals;
+ write_Aria() if $have_aria_vals;
+ write_Subquerycache() if $have_subquerycache_vals;
+ write_Binlog() if $have_binlog_vals;
+ write_TokuDB() if $have_tokudb_engine;
+}
+
+sub sec_to_dhms # Seconds to days+hours:minutes:seconds
+{
+ my $s = shift;
+ my ($d, $h, $m) = (0, 0, 0);
+
+ return '0 0:0:0' if $s <= 0;
+
+ if($s >= 86400)
+ {
+ $d = int $s / 86400;
+ $s -= $d * 86400;
+ }
+
+ if($s >= 3600)
+ {
+ $h = int $s / 3600;
+ $s -= $h * 3600;
+ }
+
+ $m = int $s / 60;
+ $s -= $m * 60;
+
+ return "$d+$h:$m:$s";
+}
+
+sub make_short
+{
+ my ($number, $kb, $d) = @_;
+ my $n = 0;
+ my $short;
+
+ $d ||= 2;
+
+ if($kb) { while ($number > 1023) { $number /= 1024; $n++; }; }
+ else { while ($number > 999) { $number /= 1000; $n++; }; }
+
+ $short = sprintf "%.${d}f%s", $number, ('','k','M','G','T')[$n];
+ if($short =~ /^(.+)\.(00)$/) { return $1; } # 12.00 -> 12 but not 12.00k -> 12k
+
+ return $short;
+}
+
+# What began as a simple but great idea has become the new standard:
+# long_query_time in microseconds. For MySQL 5.1.21+ this is now
+# standard. For 4.1 and 5.0 patches, the architects of this idea
+# provide: http://www.mysqlperformanceblog.com/mysql-patches/
+# Relevant notes in MySQL manual:
+# http://dev.mysql.com/doc/refman/5.1/en/slow-query-log.html
+#
+# The format_u_time sub simply beautifies long_query_time.
+
+sub format_u_time # format microsecond (µ) time value
+{
+ # 0.000000 - 0.000999 = 0 - 999 µ
+ # 0.001000 - 0.999999 = 1 ms - 999.999 ms
+ # 1.000000 - n.nnnnnn = 1 s - n.nnnnn s
+
+ my $t = shift;
+ my $f; # formatted µ time
+ my $u = chr(($WIN ? 230 : 181));
+
+ $t = 0 if $t < 0;
+
+ if($t > 0 && $t <= 0.000999)
+ {
+ $f = ($t * 1000000) . " $u";
+ }
+ elsif($t >= 0.001000 && $t <= 0.999999)
+ {
+ $f = ($t * 1000) . ' ms';
+ }
+ elsif($t >= 1)
+ {
+ $f = ($t * 1) . ' s'; # * 1 to remove insignificant zeros
+ }
+ else
+ {
+ $f = 0; # $t should = 0 at this point
+ }
+
+ return $f;
+}
+
+sub perc # Percentage
+{
+ my($is, $of) = @_;
+ $is = 0 if (not defined $is);
+ return sprintf "%.2f", ($is * 100) / ($of ||= 1);
+}
+
+sub t # Time average per second
+{
+ my $val = shift;
+ return 0 if !$val;
+ return(make_short($val / $stats{'Uptime'}, 0, 1));
+}
+
+sub email_report # Email given report to $op{'email'}
+{
+ print "email_report\n" if $op{debug};
+
+ return if $WIN;
+
+ my $report = shift;
+
+ open SENDMAIL, "|/usr/sbin/sendmail -t";
+ print SENDMAIL "From: mysqlreport\n";
+ print SENDMAIL "To: $op{email}\n";
+ print SENDMAIL "Subject: $dbms status report on " . ($mycnf{'host'} || 'localhost') . "\n\n";
+ print SENDMAIL `cat $report`;
+ close SENDMAIL;
+}
+
+sub cat_report # Print given report to screen
+{
+ print "cat_report\n" if $op{debug};
+
+ my $report = shift;
+ my @report;
+
+ open REPORT, "< $report";
+ @report = <REPORT>;
+ close REPORT;
+ print @report;
+}
+
+sub get_Com_values
+{
+ print "get_Com_values\n" if $op{debug};
+
+ %Com_vals = ();
+
+ # Make copy of just the Com_ values
+ for(keys %stats)
+ {
+ if(grep /^Com_/, $_ and $stats{$_} > 0)
+ {
+ /^Com_(.*)/;
+ $Com_vals{$1} = $stats{$_};
+ }
+ }
+
+ # Remove DMS values
+ delete $Com_vals{'select'};
+ delete $Com_vals{'insert'};
+ delete $Com_vals{'insert_select'};
+ delete $Com_vals{'replace'};
+ delete $Com_vals{'replace_select'};
+ delete $Com_vals{'update'};
+ delete $Com_vals{'update_multi'} if exists $Com_vals{'update_multi'};
+ delete $Com_vals{'delete'};
+ delete $Com_vals{'delete_multi'} if exists $Com_vals{'delete_multi'};
+}
+
+sub write_DTQ # Write DTQ report in descending order by values
+{
+ print "write_DTQ\n" if $op{debug};
+
+ $~ = 'DTQ';
+
+ my %DTQ;
+ my $first = 1;
+
+ # Total Com values
+ $stat_val = 0;
+ for(values %Com_vals) { $stat_val += $_; }
+ $DTQ{'Com_'} = $stat_val;
+
+ $DTQ{'DMS'} = $dms;
+ $DTQ{'QC Hits'} = $stats{'Qcache_hits'} if $stats{'Qcache_hits'} != 0;
+ $DTQ{'COM_QUIT'} = int (($stats{'Connections'} - 2) - ($stats{'Aborted_clients'} / 2));
+
+ $stat_val = 0;
+ for(values %DTQ) { $stat_val += $_; }
+ if($questions != $stat_val)
+ {
+ $DTQ{($questions > $stat_val ? '+Unknown' : '-Unknown')} = abs $questions - $stat_val;
+ }
+
+ for(sort { $DTQ{$b} <=> $DTQ{$a} } keys(%DTQ))
+ {
+ if($first) { $stat_label = '%Total:'; $first = 0; }
+ else { $stat_label = ''; }
+
+ $stat_name = $_;
+ $stat_val = $DTQ{$_};
+ write;
+ }
+}
+
+sub write_DMS # Write DMS report in descending order by values
+{
+ print "write_DMS\n" if $op{debug};
+
+ $~ = 'DMS';
+
+ for(sort { $DMS_vals{$b} <=> $DMS_vals{$a} } keys(%DMS_vals))
+ {
+ $stat_name = $_;
+ $stat_val = $DMS_vals{$_};
+ write;
+ }
+}
+
+sub write_Com # Write COM report in descending order by values
+{
+ print "write_Com\n" if $op{debug};
+
+ my $i = $op{'com'};
+
+ $~ = 'COM_1';
+
+ # Total Com values and write first line of COM report
+ $stat_label = '%Total:' unless $op{'dtq'};
+ $stat_val = 0;
+ for(values %Com_vals) { $stat_val += $_; }
+ write;
+
+ $~ = 'COM_2';
+
+ # Sort remaining Com values, print only the top $op{'com'} number of values
+ for(sort { $Com_vals{$b} <=> $Com_vals{$a} } keys(%Com_vals))
+ {
+ $stat_name = $_;
+ $stat_val = $Com_vals{$_};
+ write;
+
+ last if !(--$i);
+ }
+}
+
+sub write_qcache
+{
+ print "write_qcache\n" if $op{debug};
+
+ # Query cache was added in 4.0.1, but have_query_cache was added in 4.0.2,
+ # ergo this method is slightly more reliable
+ return if not exists $vars{'query_cache_size'};
+ return if $vars{'query_cache_size'} == 0;
+ return if defined($vars{'query_cache_type'}) and $vars{'query_cache_type'} eq 'OFF';
+
+ $qc_mem_used = $vars{'query_cache_size'} - $stats{'Qcache_free_memory'};
+ $qc_hi_r = sprintf "%.2f", $stats{'Qcache_hits'} / ($stats{'Qcache_inserts'} ||= 1);
+ $qc_ip_r = sprintf "%.2f", $stats{'Qcache_inserts'} / ($stats{'Qcache_lowmem_prunes'} ||= 1);
+
+ $~ = 'QCACHE';
+ write;
+}
+
+sub write_Subquerycache
+{
+ print "write_Subquerycache\n" if $op{debug};
+
+ return if not defined $stats{'Subquery_cache_hit'};
+ return if $stats{'Subquery_cache_hit'} == 0 && $stats{'Subquery_cache_miss'} == 0;
+
+ $~ = 'SUBQUERYCACHE';
+ write;
+}
+
+sub write_Binlog
+{
+ print "write_Binlog\n" if $op{debug};
+
+ return if $binlog_cache_ratio == 0 && $binlog_stmt_cache_ratio == 0;
+ $~ = 'BINLOG';
+ write;
+}
+
+sub write_TokuDB
+{
+ print "write_TokuDB\n" if $op{debug};
+
+ return if $stats{'Tokudb_cachetable_size_current'} == 0;
+
+ $~ = 'TOKUDB';
+ write;
+}
+
+sub write_InnoDB
+{
+ print "write_InnoDB\n" if $op{debug};
+
+ return if not defined $stats{'Innodb_page_size'};
+
+ $stats{'Innodb_buffer_pool_pages_latched'} = 0 if not defined $stats{'Innodb_buffer_pool_pages_latched'};
+
+ $~ = 'IB';
+ write;
+ if($use_xtradb)
+ {
+ $~ = 'IB_XTRADB';
+ write;
+ }
+
+ # Innodb_row_lock_ values were added in MySQL 5.0.3
+ if($MySQL_version >= 50003)
+ {
+ $~ = 'IB_LOCK';
+ write;
+ }
+ if($use_xtradb)
+ {
+ $~ = 'IB_LOCK_XTRADB';
+ write;
+ }
+
+ # Data, Pages, Rows
+ $~ = 'IB_DPR';
+ write;
+}
+
+
+sub write_Aria
+{
+ print "write_Aria\n" if $op{debug};
+
+ return if not defined $stats{'Aria_pagecache_blocks_used'};
+
+ $~ = 'PAGECACHE_BUFF_MAX';
+ write;
+
+ if($pagecache_buffer_usage != -1) { $~ = 'PAGECACHE_BUFF_USAGE', write }
+
+ $~ = 'PAGECACHE_RATIOS';
+ write;
+}
+
+sub write_Rows
+{
+ print "write_Rows\n" if $op{debug};
+
+ $rows_using_indexes = $stats{'Handler_read_first'} + $stats{'Handler_read_key'} + $stats{'Handler_read_next'} + $stats{'Handler_read_prev'};
+ $rows = $rows_using_indexes + $stats{'Handler_read_rnd'} + $stats{'Handler_read_rnd_next'} + $stats{'Sort_rows'};
+
+ $~ = 'ROWS';
+ write;
+}
+
+sub have_op
+{
+ my $key = shift;
+ return 1 if (exists $op{$key} && $op{$key} ne '');
+ return 0;
+}
+
+sub sig_handler
+{
+ print "\nReceived signal at " , scalar localtime , "\n";
+ exit_tasks_and_cleanup();
+ exit;
+}
+
+sub exit_tasks_and_cleanup
+{
+ print "exit_tasks_and_cleanup\n" if $op{debug};
+
+ close $tmpfile_fh;
+ select STDOUT unless $op{'detach'};
+
+ email_report($tmpfile) if $op{'email'};
+
+ cat_report($tmpfile) unless $op{'detach'};
+
+ if($op{'outfile'})
+ {
+ if($WIN) { `move $tmpfile $op{outfile}`; }
+ else { `mv $tmpfile $op{outfile}`; }
+ }
+ else
+ {
+ unlink $tmpfile;
+ }
+
+ if(!$op{'infile'} && !$relative_infiles)
+ {
+ if($op{'flush-status'})
+ {
+ my $query = $dbh->prepare("FLUSH STATUS;");
+ $query->execute();
+ $query->finish();
+ }
+ $dbh->disconnect();
+ }
+}
+
+#
+# Formats
+#
+
+format MYSQL_TIME =
+@<<<<<< @<<<<<<<<<<<<<<<<<< uptime @<<<<<<<<<<< @<<<<<<<<<<<<<<<<<<<<<<<
+$dbms, $vars{'version'}, sec_to_dhms($real_uptime), (($op{infile} || $relative_infiles) ? '' : scalar localtime)
+.
+
+format KEY_BUFF_MAX =
+
+__ Key _________________________________________________________________
+Buffer used @>>>>>> of @>>>>>> %Used: @>>>>>
+make_short($key_buffer_used, 1), make_short($vars{'key_buffer_size'}, 1), perc($key_buffer_used, $vars{'key_buffer_size'})
+.
+
+format KEY_BUFF_USAGE =
+ Current @>>>>>> %Usage: @>>>>>
+make_short($key_buffer_usage, 1), perc($key_buffer_usage, $vars{'key_buffer_size'})
+.
+
+format KEY_RATIOS =
+Write hit @>>>>>%
+$key_write_ratio
+Read hit @>>>>>%
+$key_read_ratio
+
+__ Questions ___________________________________________________________
+Total @>>>>>>>> @>>>>>/s
+make_short($questions), t($questions)
+.
+
+format DTQ =
+ @<<<<<<< @>>>>>>>> @>>>>>/s @>>>>>> @>>>>>
+$stat_name, make_short($stat_val), t($stat_val), $stat_label, perc($stat_val, $questions)
+.
+
+format SLOW_DMS =
+Slow @<<<<<<< @>>>>>> @>>>>>/s @>>>>> %DMS: @>>>>> Log: @>>
+$slow_query_t, make_short($stats{'Slow_queries'}), t($stats{'Slow_queries'}), perc($stats{'Slow_queries'}, $questions), perc($stats{'Slow_queries'}, $dms), $vars{'log_slow_queries'}
+DMS @>>>>>>>> @>>>>>/s @>>>>>
+make_short($dms), t($dms), perc($dms, $questions)
+.
+
+format DMS =
+ @<<<<<<< @>>>>>>>> @>>>>>/s @>>>>> @>>>>>
+$stat_name, make_short($stat_val), t($stat_val), perc($stat_val, $questions), perc($stat_val, $dms)
+.
+
+format COM_1 =
+Com_ @>>>>>>>> @>>>>>/s @>>>>>
+make_short($stat_val), t($stat_val), perc($stat_val, $questions)
+.
+
+format COM_2 =
+ @<<<<<<<<<< @>>>>>> @>>>>>/s @>>>>>
+$stat_name, make_short($stat_val), t($stat_val), perc($stat_val, $questions)
+.
+
+format SAS =
+
+__ SELECT and Sort _____________________________________________________
+Scan @>>>>>> @>>>>>/s %SELECT: @>>>>>
+make_short($stats{'Select_scan'}), t($stats{'Select_scan'}), perc($stats{'Select_scan'}, $stats{'Com_select'})
+Range @>>>>>> @>>>>>/s @>>>>>
+make_short($stats{'Select_range'}), t($stats{'Select_range'}), perc($stats{'Select_range'}, $stats{'Com_select'})
+Full join @>>>>>> @>>>>>/s @>>>>>
+make_short($stats{'Select_full_join'}), t($stats{'Select_full_join'}), perc($stats{'Select_full_join'}, $stats{'Com_select'})
+Range check @>>>>>> @>>>>>/s @>>>>>
+make_short($stats{'Select_range_check'}), t($stats{'Select_range_check'}), perc($stats{'Select_range_check'}, $stats{'Com_select'})
+Full rng join @>>>>>> @>>>>>/s @>>>>>
+make_short($stats{'Select_full_range_join'}), t($stats{'Select_full_range_join'}), perc($stats{'Select_full_range_join'}, $stats{'Com_select'})
+Sort scan @>>>>>> @>>>>>/s
+make_short($stats{'Sort_scan'}), t($stats{'Sort_scan'})
+Sort range @>>>>>> @>>>>>/s
+make_short($stats{'Sort_range'}), t($stats{'Sort_range'})
+Sort mrg pass @>>>>>> @>>>>>/s
+make_short($stats{'Sort_merge_passes'}), t($stats{'Sort_merge_passes'})
+.
+
+format QCACHE =
+
+__ Query Cache _________________________________________________________
+Memory usage @>>>>>> of @>>>>>> %Usage: @>>>>>
+make_short($qc_mem_used, 1), make_short($vars{'query_cache_size'}, 1), perc($qc_mem_used, $vars{'query_cache_size'})
+Block Fragmnt @>>>>>%
+perc($stats{'Qcache_free_blocks'}, $stats{'Qcache_total_blocks'})
+Hits @>>>>>> @>>>>>/s
+make_short($stats{'Qcache_hits'}), t($stats{'Qcache_hits'})
+Inserts @>>>>>> @>>>>>/s
+make_short($stats{'Qcache_inserts'}), t($stats{'Qcache_inserts'})
+Insrt:Prune @>>>>>>:1 @>>>>>/s
+make_short($qc_ip_r), t($stats{'Qcache_inserts'} - $stats{'Qcache_lowmem_prunes'})
+Hit:Insert @>>>>>>:1
+$qc_hi_r, t($qc_hi_r)
+.
+
+format SUBQUERYCACHE =
+
+__ Subquery Cache ______________________________________________________
+Hit ratio @>>>>>%
+perc($stats{'Subquery_cache_hit'} / ($stats{'Subquery_cache_hit'} + $stats{'Subquery_cache_miss'}))
+Hits @>>>>>> @>>>>>/s
+make_short($stats{'Subquery_cache_hit'}), t($stats{'Subquery_cache_hit'})
+Miss @>>>>>> @>>>>>/s
+make_short($stats{'Subquery_cache_miss'}), t($stats{'Subquery_cache_miss'})
+.
+
+# Not really the end...
+format REPORT_END =
+
+__ Table Locks _________________________________________________________
+Waited @>>>>>>>> @>>>>>/s %Total: @>>>>>
+make_short($stats{'Table_locks_waited'}), t($stats{'Table_locks_waited'}), perc($stats{'Table_locks_waited'}, $stats{'Table_locks_waited'} + $stats{'Table_locks_immediate'});
+Immediate @>>>>>>>> @>>>>>/s
+make_short($stats{'Table_locks_immediate'}), t($stats{'Table_locks_immediate'})
+
+__ Tables ______________________________________________________________
+Open @>>>>>>>> of @>>>>> %Cache: @>>>>>
+$stats{'Open_tables'}, $vars{'table_cache'}, perc($stats{'Open_tables'}, $vars{'table_cache'})
+Opened @>>>>>>>> @>>>>>/s
+make_short($stats{'Opened_tables'}), t($stats{'Opened_tables'})
+
+__ Connections _________________________________________________________
+Max used @>>>>>>>> of @>>>>> %Max: @>>>>>
+$stats{'Max_used_connections'}, $vars{'max_connections'}, perc($stats{'Max_used_connections'}, $vars{'max_connections'})
+Total @>>>>>>>> @>>>>>/s
+make_short($stats{'Connections'}), t($stats{'Connections'})
+
+__ Created Temp ________________________________________________________
+Disk table @>>>>>>>> @>>>>>/s %Disk: @>>>>>
+make_short($stats{'Created_tmp_disk_tables'}), t($stats{'Created_tmp_disk_tables'}), perc($stats{'Created_tmp_disk_tables'}, $stats{'Created_tmp_tables'})
+Table @>>>>>>>> @>>>>>/s Size: @>>>>>
+make_short($stats{'Created_tmp_tables'}), t($stats{'Created_tmp_tables'}), make_short($vars{'tmp_table_size'}, 1, 1)
+File @>>>>>>>> @>>>>>/s
+make_short($stats{'Created_tmp_files'}), t($stats{'Created_tmp_files'})
+.
+
+format THREADS =
+
+__ Threads _____________________________________________________________
+Running @>>>>>>>> of @>>>>>
+$stats{'Threads_running'}, $stats{'Threads_connected'}
+Created @>>>>>>>> @>>>>>/s
+make_short($stats{'Threads_created'}), t($stats{'Threads_created'})
+Slow @>>>>>>>> @>>>>>/s
+$stats{'Slow_launch_threads'}, t($stats{'Slow_launch_threads'})
+.
+
+format THREADPERCONNECTION =
+Cached @>>>>>>>> of @>>>>> %Hit: @>>>>>
+$stats{'Threads_cached'}, $vars{'thread_cache_size'}, make_short(100 - perc($stats{'Threads_created'}, $stats{'Connections'}))
+.
+
+format THREADPOOL =
+Threadpool @>>>>>>>> of @>>>>> %Used: @>>>>>
+$stats{'Threadpool_threads'} + $stats{'Threadpool_idle_threads'}, $vars{'thread_pool_max_threads'}, make_short(perc($stats{'Threadpool_threads'} + $stats{'Threadpool_idle_threads'}, $vars{'thread_pool_max_threads'}))
+ Running @>>>>>>>> of @>>>>> %Running: @>>>>>
+$stats{'Threadpool_threads'}, $vars{'thread_pool_max_threads'}, make_short(perc($stats{'Threadpool_threads'}, $vars{'thread_pool_max_threads'}))
+ Idle @>>>>>>>> of @>>>>> %Idle: @>>>>>
+$stats{'Threadpool_idle_threads'}, $vars{'thread_pool_max_threads'}, make_short(perc($stats{'Threadpool_idle_threads'}, $vars{'thread_pool_max_threads'}))
+.
+
+format TAB =
+
+__ Aborted _____________________________________________________________
+Clients @>>>>>>>> @>>>>>/s
+make_short($stats{'Aborted_clients'}), t($stats{'Aborted_clients'})
+Connects @>>>>>>>> @>>>>>/s
+make_short($stats{'Aborted_connects'}), t($stats{'Aborted_connects'})
+
+__ Bytes _______________________________________________________________
+Sent @>>>>>>>> @>>>>>/s
+make_short($stats{'Bytes_sent'}), t($stats{'Bytes_sent'})
+Received @>>>>>>>> @>>>>>/s
+make_short($stats{'Bytes_received'}), t($stats{'Bytes_received'})
+.
+
+format IB =
+
+__ InnoDB Buffer Pool __________________________________________________
+Usage @>>>>>> of @>>>>>> %Usage: @>>>>>
+make_short($ib_bp_used, 1), make_short($ib_bp_total, 1), perc($ib_bp_used, $ib_bp_total)
+Read hit @>>>>>%
+$ib_bp_read_ratio;
+Pages
+ Free @>>>>>>>> %Total: @>>>>>
+make_short($stats{'Innodb_buffer_pool_pages_free'}), perc($stats{'Innodb_buffer_pool_pages_free'}, $stats{'Innodb_buffer_pool_pages_total'})
+ Data @>>>>>>>> @>>>>> %Drty: @>>>>>
+make_short($stats{'Innodb_buffer_pool_pages_data'}), perc($stats{'Innodb_buffer_pool_pages_data'}, $stats{'Innodb_buffer_pool_pages_total'}), perc($stats{'Innodb_buffer_pool_pages_dirty'}, $stats{'Innodb_buffer_pool_pages_data'})
+ Misc @>>>>>>>> @>>>>>
+ $stats{'Innodb_buffer_pool_pages_misc'}, perc($stats{'Innodb_buffer_pool_pages_misc'}, $stats{'Innodb_buffer_pool_pages_total'})
+ Latched @>>>>>>>> @>>>>>
+$stats{'Innodb_buffer_pool_pages_latched'}, perc($stats{'Innodb_buffer_pool_pages_latched'}, $stats{'Innodb_buffer_pool_pages_total'})
+Reads @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_buffer_pool_read_requests'}), t($stats{'Innodb_buffer_pool_read_requests'})
+ From disk @>>>>>>>> @>>>>>/s %Disk: @>>>>>
+make_short($stats{'Innodb_buffer_pool_reads'}), t($stats{'Innodb_buffer_pool_reads'}), perc($stats{'Innodb_buffer_pool_reads'}, $stats{'Innodb_buffer_pool_read_requests'})
+ Ahead Rnd @>>>>>>>> @>>>>>/s
+$stats{'Innodb_buffer_pool_read_ahead_rnd'}, t($stats{'Innodb_buffer_pool_read_ahead_rnd'})
+# Ahead Sql @>>>>>>>> @>>>>>/s
+#$stats{'Innodb_buffer_pool_read_ahead_seq'}, t($stats{'Innodb_buffer_pool_read_ahead_seq'})
+Writes @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_buffer_pool_write_requests'}), t($stats{'Innodb_buffer_pool_write_requests'})
+Wait Free @>>>>>>>> @>>>>>/s %Wait: @>>>>>
+$stats{'Innodb_buffer_pool_wait_free'}, t($stats{'Innodb_buffer_pool_wait_free'}), perc($stats{'Innodb_buffer_pool_wait_free'}, $stats{'Innodb_buffer_pool_write_requests'})
+Flushes @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_buffer_pool_pages_flushed'}), t($stats{'Innodb_buffer_pool_pages_flushed'})
+.
+
+format IB_XTRADB =
+ LRU @>>>>>>>> @>>>>>/s %LRU: @>>>>>
+make_short($stats{'Innodb_buffer_pool_pages_lru_flushed'}), t($stats{'Innodb_buffer_pool_pages_lru_flushed'}), perc($stats{'Innodb_buffer_pool_pages_lru_flushed'}, $stats{'Innodb_buffer_pool_pages_flushed'})
+.
+
+format IB_LOCK =
+
+__ InnoDB Lock _________________________________________________________
+Waits @>>>>>>>> @>>>>>/s
+$stats{'Innodb_row_lock_waits'}, t($stats{'Innodb_row_lock_waits'})
+Current @>>>>>>>>
+$stats{'Innodb_row_lock_current_waits'}
+Time acquiring
+ Total @>>>>>>>> ms
+$stats{'Innodb_row_lock_time'}
+ Average @>>>>>>>> ms
+$stats{'Innodb_row_lock_time_avg'}
+ Max @>>>>>>>> ms
+$stats{'Innodb_row_lock_time_max'}
+.
+
+format IB_LOCK_XTRADB =
+Trx history @>>>>>>>>
+make_short($stats{'Innodb_history_list_length'})
+.
+
+format IB_DPR =
+
+__ InnoDB Data, Pages, Rows ____________________________________________
+Data
+ Reads @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_data_reads'}), t($stats{'Innodb_data_reads'})
+ Writes @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_data_writes'}), t($stats{'Innodb_data_writes'})
+ fsync @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_data_fsyncs'}), t($stats{'Innodb_data_fsyncs'})
+ Pending
+ Reads @>>>>>>>>
+$stats{'Innodb_data_pending_reads'}, t($stats{'Innodb_data_pending_reads'})
+ Writes @>>>>>>>>
+$stats{'Innodb_data_pending_writes'}, t($stats{'Innodb_data_pending_writes'})
+ fsync @>>>>>>>>
+$stats{'Innodb_data_pending_fsyncs'}, t($stats{'Innodb_data_pending_fsyncs'})
+
+Pages
+ Created @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_pages_created'}), t($stats{'Innodb_pages_created'})
+ Read @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_pages_read'}), t($stats{'Innodb_pages_read'})
+ Written @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_pages_written'}), t($stats{'Innodb_pages_written'})
+
+Rows
+ Deleted @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_rows_deleted'}), t($stats{'Innodb_rows_deleted'})
+ Inserted @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_rows_inserted'}), t($stats{'Innodb_rows_inserted'})
+ Read @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_rows_read'}), t($stats{'Innodb_rows_read'})
+ Updated @>>>>>>>> @>>>>>/s
+make_short($stats{'Innodb_rows_updated'}), t($stats{'Innodb_rows_updated'})
+.
+
+format PAGECACHE_BUFF_MAX =
+
+__ Aria Pagecache ______________________________________________________
+Buffer used @>>>>>> of @>>>>>> %Used: @>>>>>
+make_short($pagecache_buffer_used, 1), make_short($vars{'aria_pagecache_buffer_size'}, 1), perc($pagecache_buffer_used, $vars{'aria_pagecache_buffer_size'})
+.
+
+format PAGECACHE_BUFF_USAGE =
+ Current @>>>>>> %Usage: @>>>>>
+make_short($pagecache_buffer_usage, 1), perc($pagecache_buffer_usage, $vars{'aria_pagecache_buffer_size'})
+.
+
+format PAGECACHE_RATIOS =
+Write hit @>>>>>%
+$pagecache_write_ratio
+Read hit @>>>>>%
+$pagecache_read_ratio
+.
+
+format BINLOG =
+
+__ Binary Log Cache _____________________________________________________
+Disk use
+ Transactional @>>>>>%
+perc($binlog_cache_ratio)
+ Non transactional @>>>>>%
+perc($binlog_stmt_cache_ratio)
+.
+
+format TOKUDB =
+
+__ TokuDB ______________________________________________________________
+Cachetable @>>>>>> of @>>>>>> %Usage: @>>>>>
+make_short($stats{Tokudb_cachetable_size_current}, 1), make_short($vars{tokudb_cache_size}, 1), perc($stats{Tokudb_cachetable_size_current}, $vars{tokudb_cache_size})
+ Miss @>>>>>> @>>>>>/s
+make_short($stats{'Tokudb_cachetable_miss'}), t($stats{'Tokudb_cachetable_miss'})
+ Evictions @>>>>>> @>>>>>/s
+make_short($stats{'Tokudb_cachetable_evictions'}), t($stats{'Tokudb_cachetable_evictions'})
+.
+
+format ROWS =
+
+__ Rows ________________________________________________________________
+Rows @>>>>>>>> @>>>>>/s
+make_short($rows), t($rows)
+ Using idx @>>>>>>>> @>>>>>/s %Index: @>>>>>
+make_short($rows_using_indexes), t($rows_using_indexes), perc($rows_using_indexes,$rows)
+Rows/question @>>>>>>
+make_short($rows/$questions)
+.
diff --git a/debian/additions/mysqlreport.1 b/debian/additions/mysqlreport.1
new file mode 100644
index 0000000..5ae6b9e
--- /dev/null
+++ b/debian/additions/mysqlreport.1
@@ -0,0 +1,180 @@
+.TH "mysqlreport" "1" "2.5 2006-09-01 (docrev 2006-05-19)" "Daniel Nichter" "MYSQL"
+.SH "NAME"
+.LP
+mysqlreport \- Makes a friendly report of important MySQL status values
+.SH "SYNTAX"
+.LP
+mysqlreport [\fIoptions\fP]
+.SH "DESCRIPTION"
+.LP
+mysqlreport makes a friendly report of important MySQL status values. Actually,
+it makes a friendly report of nearly every status value from SHOW STATUS.
+Unlike SHOW STATUS which simply dumps over 100 values to screen in one long
+list, mysqlreport interprets and formats the values and presents the basic
+values and many more inferred values in a human\-readable format. Numerous
+example reports are available at the mysqlreport web page at
+http://hackmysql.com/mysqlreport.
+
+The benefit of mysqlreport is that it allows you to very quickly see a wide
+array of performance indicators for your MySQL server which would otherwise
+need to be calculated by hand from all the various SHOW STATUS values. For
+example, the Index Read Ratio is an important value but it's not present in
+SHOW STATUS; it's an inferred value (the ratio of Key_reads to
+Key_read_requests).
+
+This documentation outlines all the command line options in mysqlreport, most
+of which control which reports are printed. This document does not address
+how to interpret these reports; that topic is covered in the document Guide
+To Understanding mysqlreport at http://hackmysql.com/mysqlreportguide.
+
+.SH "OPTIONS"
+Technically, command line options are in the form \-\-option, but \-option works
+too. All options can be abbreviated if the abbreviation is unique. For example,
+option \-\-host can be abbreviated \-\-ho but not \-\-h because \-\-h is ambiguous: it
+could mean \-\-host or \-\-help.
+
+.LP
+
+.TP
+\fB\-\-help\fR
+Output help information and exit.
+
+.TP
+\fB\-\-user USER\fR
+
+.TP
+\fB\-\-password\fR
+As of version 2.3 \-\-password can take the password on the
+command line like "\-\-password FOO". Using \-\-password
+alone without giving a password on the command line
+causes mysqlreport to prompt for a password.
+
+.TP
+\fB\-\-host ADDRESS\fR
+
+.TP
+\fB\-\-port PORT\fR
+
+.TP
+\fB\-\-socket SOCKET\fR
+
+.TP
+\fB\-\-no\-mycnf\fR
+\-\-no\-mycnf makes mysqlreport not read ~/.my.cnf which it does by default
+otherwise. \-\-user and \-\-password always override values from ~/.my.cnf.
+
+.TP
+\fB\-\-dtq\fR
+Print Distribution of Total Queries (DTQ) report (under
+Total in Questions report). Queries (or Questions) can
+be divided into four main areas: DMS (see \-\-dms below),
+Com_ (see \-\-com below), COM_QUIT (see COM_QUIT and
+Questions at http://hackmysql.com/com_quit), and
+Unknown. \-\-dtq lists the number of queries in each of
+these areas in descending order.
+
+.TP
+\fB\-\-dms\fR
+Print Data Manipulation Statements (DMS) report (under
+DMS in Questions report). DMS are those from the MySQL
+manual section 13.2. Data Manipulation Statements.
+(Currently, mysqlreport considers only SELECT, INSERT,
+REPLACE, UPDATE, and DELETE.) Each DMS is listed in
+descending order by count.
+
+.TP
+\fB\-\-com N\fR
+Print top N number of non\-DMS Com_ status values in
+descending order (after DMS in Questions report). If N
+is not given, default is 3. Such non\-DMS Com_ values
+include Com_change_db, Com_show_tables, Com_rollback,
+etc.
+
+.TP
+\fB\-\-sas\fR
+Print report for Select_ and Sort_ status values (after
+Questions report). See MySQL Select and Sort Status
+Variables at http://hackmysql.com/selectandsort.
+
+.TP
+\fB\-\-tab\fR
+Print Threads, Aborted, and Bytes status reports (after
+Created temp report). As of mysqlreport v2.3 the
+Threads report reports on all Threads_ status values.
+
+.TP
+\fB\-\-qcache\fR
+Print Query Cache report.
+.TP
+\fB\-\-all\fR
+Equivalent to "\-\-dtq \-\-dms \-\-com 3 \-\-sas \-\-qcache".
+(Notice \-\-tab is not invoked by \-\-all.)
+
+.TP
+\fB\-\-infile FILE\fR
+Instead of getting SHOW STATUS values from MySQL, read
+values from FILE. FILE is often a copy of the output of
+SHOW STATUS including formatting characters (|, +, \-).
+mysqlreport expects FILE to have the format
+" value number " where value is only alpha and
+underscore characters (A\-Z and _) and number is a
+positive integer. Anything before, between, or after
+value and number is ignored. mysqlreport also needs
+the following MySQL server variables: version,
+table_cache, max_connections, key_buffer_size,
+query_cache_size. These values can be specified in
+INFILE in the format "name = value" where name is one
+of the aforementioned server variables and value is a
+positive integer with or without a trailing M and
+possible periods (for version). For example, to specify
+an 18M key_buffer_size: key_buffer_size = 18M. Or, a
+256 table_cache: table_cache = 256. The M implies
+Megabytes not million, so 18M means 18,874,368 not
+18,000,000. If these server variables are not specified
+the following defaults are used (respectively) which
+may cause strange values to be reported: 0.0.0, 64,
+100, 8M, 0.
+
+.TP
+\fB\-\-outfile FILE\fR
+After printing the report to screen, print the report
+to FILE too. Internally, mysqlreport always writes the
+report to a temp file first: /tmp/mysqlreport.PID on
+*nix, c:\mysqlreport.PID on Windows (PID is the
+script's process ID). Then it prints the temp file to
+screen. Then if \-\-outfile is specified, the temp file
+is copied to OUTFILE. After \-\-email (below), the temp
+file is deleted.
+
+.TP
+\fB\-\-email ADDRESS\fR
+After printing the report to screen, email the report
+to ADDRESS. This option requires sendmail in
+/usr/sbin/, therefore it does not work on Windows.
+/usr/sbin/sendmail can be a sym link to qmail, for
+example, or any MTA that emulates sendmail's \-t
+command line option and operation. The FROM: field is
+"mysqlreport", SUBJECT: is "MySQL status report".
+
+.TP
+\fB\-\-flush\-status\fR
+Execute a "FLUSH STATUS;" after generating the reports.
+If you do not have permissions in MySQL to do this an
+error from DBD::mysql::st will be printed after the
+reports.
+
+.SH "AUTHORS"
+.LP
+Daniel Nichter
+
+If mysqlreport breaks, send me a message from
+http://hackmysql.com/feedback
+with the error.
+
+.SH "SEE ALSO"
+.LP
+mytop(1)
+.LP
+The comprehensive Guide To Understanding mysqlreport at
+http://hackmysql.com/mysqlreportguide.
+
diff --git a/debian/additions/source_mariadb-10.1.py b/debian/additions/source_mariadb-10.1.py
new file mode 100644
index 0000000..caabfa2
--- /dev/null
+++ b/debian/additions/source_mariadb-10.1.py
@@ -0,0 +1,54 @@
+'''apport package hook for mariadb-10.1
+
+(c) 2009 Canonical Ltd.
+Author: Mathias Gug <mathias.gug@canonical.com>
+'''
+
+from __future__ import print_function, unicode_literals
+import os, os.path
+
+from apport.hookutils import *
+
+def _add_my_conf_files(report, filename):
+ key = 'MySQLConf' + path_to_key(filename)
+ report[key] = ""
+ for line in read_file(filename).split('\n'):
+ try:
+ if 'password' in line.split('=')[0]:
+ line = "%s = @@APPORTREPLACED@@" % (line.split('=')[0])
+ report[key] += line + '\n'
+ except IndexError:
+ continue
+
+def add_info(report):
+ attach_conffiles(report, 'mariadb-server-10.1', conffiles=None)
+ key = 'Logs' + path_to_key('/var/log/daemon.log')
+ report[key] = ""
+ for line in read_file('/var/log/daemon.log').split('\n'):
+ try:
+ if 'mysqld' in line.split()[4]:
+ report[key] += line + '\n'
+ except IndexError:
+ continue
+ if os.path.exists('/var/log/mysql/error.log'):
+ key = 'Logs' + path_to_key('/var/log/mysql/error.log')
+ report[key] = ""
+ for line in read_file('/var/log/mysql/error.log').split('\n'):
+ report[key] += line + '\n'
+ attach_mac_events(report, '/usr/sbin/mysqld')
+ attach_file(report,'/etc/apparmor.d/usr.sbin.mysqld')
+ _add_my_conf_files(report, '/etc/mysql/mariadb.cnf')
+ for f in os.listdir('/etc/mysql/conf.d'):
+ _add_my_conf_files(report, os.path.join('/etc/mysql/conf.d', f))
+ for f in os.listdir('/etc/mysql/mariadb.conf.d'):
+ _add_my_conf_files(report, os.path.join('/etc/mysql/mariadb.conf.d', f))
+ try:
+ report['MySQLVarLibDirListing'] = str(os.listdir('/var/lib/mysql'))
+ except OSError:
+ report['MySQLVarLibDirListing'] = str(False)
+
+if __name__ == '__main__':
+ report = {}
+ add_info(report)
+ for key in report:
+ print('%s: %s' % (key, report[key].split('\n', 1)[0]))
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-09 22:24:55 +0000