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author | Igor Pashev <pashev.igor@gmail.com> | 2014-10-26 12:33:50 +0400 |
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committer | Igor Pashev <pashev.igor@gmail.com> | 2014-10-26 12:33:50 +0400 |
commit | 47e6e7c84f008a53061e661f31ae96629bc694ef (patch) | |
tree | 648a07f3b5b9d67ce19b0fd72e8caa1175c98f1a /man/man1/pmdasystemd.1 | |
download | pcp-debian.tar.gz |
Debian 3.9.10debian/3.9.10debian
Diffstat (limited to 'man/man1/pmdasystemd.1')
-rw-r--r-- | man/man1/pmdasystemd.1 | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/man/man1/pmdasystemd.1 b/man/man1/pmdasystemd.1 new file mode 100644 index 0000000..b4fd3bd --- /dev/null +++ b/man/man1/pmdasystemd.1 @@ -0,0 +1,176 @@ +'\"macro stdmacro +.\" +.\" Copyright (c) 2014 Red Hat. +.\" Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. +.\" +.\" 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. +.\" +.TH PMDASYSTEMD 1 "PCP" "Performance Co-Pilot" +.SH NAME +\f3pmdasystemd\f1 \- systemd performance metrics domain agent (PMDA) +.SH SYNOPSIS +\f3$PCP_PMDAS_DIR/systemd/pmdasystemd\f1 +[\f3\-f\f1] +[\f3\-d\f1 \f2domain\f1] +[\f3\-l\f1 \f2logfile\f1] +[\f3\-m\f1 \f2memory\f1] +[\f3\-s\f1 \f2interval\f1] +[\f3\-U\f1 \f2username\f1] +.SH DESCRIPTION +.B pmdasystemd +is a systemd log file monitoring Performance Metrics Domain +Agent (PMDA). +It can be seen as analagous to the +.B \-f +option to +.BR journalctl (1) +and converts each new log line into a performance event, +suitable for consumption by +.BR PMAPI (3) +client tools like +.BR pmevent (1). +.PP +The +.B systemd +PMDA exports both event-style metrics reflecting timestamped event +records for messages logged to the system logs, as well as the more +orthodox sample-style metrics such as message counts and throughput +size values. +.PP +A brief description of the +.B pmdasystemd +command line options follows: +.TP 5 +.B \-d +It is absolutely crucial that the performance metrics +.I domain +number specified here is unique and consistent. +That is, +.I domain +should be different for every PMDA on the one host, and the same +.I domain +number should be used for the same PMDA on all hosts. +.TP +.B \-f +Disables per-uid/gid record filtering. +By default the user and group credentials will be used to +filter log records returned to the client tool, preventing +information exposure to arbitrary users. +This option disables that, so use only with extreme caution. +.TP +.B \-l +Location of the log file. By default, a log file named +.I systemd.log +is written in the current directory of +.BR pmcd (1) +when +.B pmdasystemd +is started, i.e. +.BR $PCP_LOG_DIR/pmcd . +If the log file cannot +be created or is not writable, output is written to the standard error instead. +.TP +.B \-m +Limit the physical memory used by the PMDA to buffer event records to +.I maxsize +bytes. +As log events arrive at the PMDA, they must be buffered until individual +client tools request the next batch since their previous batch of events. +The default maximum is 2 megabytes. +.TP +.B \-s +Sets the polling interval for detecting newly arrived log lines. +Mirrors the same option from the +.BR tail (1) +command. +.TP +.B \-U +User account under which to run the agent. +The default is the "adm" user account. +.SH INSTALLATION +If you want access to the names, help text and values for the systemd +performance metrics, do the following as root: +.PP +.ft CW +.nf +.in +0.5i +# cd $PCP_PMDAS_DIR/systemd +# ./Install +.in +.fi +.ft 1 +.PP +If you want to undo the installation, do the following as root: +.PP +.ft CW +.nf +.in +0.5i +# cd $PCP_PMDAS_DIR/systemd +# ./Remove +.in +.fi +.ft 1 +.PP +.B pmdasystemd +is launched by +.BR pmcd (1) +and should never be executed directly. +The Install and Remove scripts notify +.BR pmcd (1) +when the agent is installed or removed. +.SH FILES +.PD 0 +.TP 10 +.B $PCP_PMCDCONF_PATH +command line options used to launch +.B pmdasystemd +.TP 10 +.B $PCP_PMDAS_DIR/systemd/help +default help text file for the systemd metrics +.TP 10 +.B $PCP_PMDAS_DIR/systemd/Install +installation script for the +.B pmdasystemd +agent +.TP 10 +.B $PCP_PMDAS_DIR/systemd/Remove +undo installation script for the +.B pmdasystemd +agent +.TP 10 +.B $PCP_LOG_DIR/pmcd/systemd.log +default log file for error messages and other information from +.B pmdasystemd +.PD +.SH "PCP ENVIRONMENT" +Environment variables with the prefix +.B PCP_ +are used to parameterize the file and directory names +used by PCP. +On each installation, the file +.I /etc/pcp.conf +contains the local values for these variables. +The +.B $PCP_CONF +variable may be used to specify an alternative +configuration file, +as described in +.BR pcp.conf (5). +.SH SEE ALSO +.BR PCPIntro (1), +.BR pmcd (1), +.BR pmevent (1), +.BR journalctl (1), +.BR tail (1), +.BR PMAPI (3), +.BR pcp.conf (5) +and +.BR pcp.env (5). |