'\"macro stdmacro
.\"
.\" Copyright (c) 2014 Red Hat.
.\"
.\" 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
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.\" or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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.TH PMDARPM 1 "PCP" "Performance Co-Pilot"
.SH NAME
\f3pmdarpm\f1 \- RPM packages performance metrics domain agent (PMDA)
.SH SYNOPSIS
\f3$PCP_PMDAS_DIR/rpm/pmdarpm\f1
[\f3\-C\f1]
[\f3\-d\f1 \f2domain\f1]
[\f3\-l\f1 \f2logfile\f1]
[\f3\-r\f1 \f2path\f1]
[\f3\-U\f1 \f2username\f1]
.SH DESCRIPTION
.B pmdarpm
is a Performance Metrics Domain Agent (PMDA) which extracts
performance metrics reflecting the state of the RPM package
database managed by
.BR rpm (1).
.PP
The
.B rpm
PMDA exports metrics that describe each package installed on a
system, as well as some cumulative totals.
When the RPM database changes the PMDA automatically detects this
and uses a background thread to asynchronously refresh its values.
.PP
A brief description of the
.B pmdarpm
command line options follows:
.TP 5
.B \-C
Verify the package iteration code by scanning the RPM database
once, then exiting.
Only useful for problem diagnosis and testing.
.TP
.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 \-l
Location of the log file.  By default, a log file named
.I rpm.log
is written in the current directory of
.BR pmcd (1)
when
.B pmdarpm
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 \-r
Specify an alternate path to the RPM database (default is
.IR /var/lib/rpm/Packages ).
.TP
.B \-U
User account under which to run the agent.
The default is the unprivileged "pcp" account.
.SH INSTALLATION
If you want access to the names, help text and values for the rpm
performance metrics, do the following as root:
.PP
.ft CW
.nf
.in +0.5i
# cd $PCP_PMDAS_DIR/rpm
# ./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/rpm
# ./Remove
.in
.fi
.ft 1
.PP
.B pmdarpm
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 pmdarpm
.TP 10
.B $PCP_PMDAS_DIR/rpm/help
default help text file for the rpm metrics
.TP 10
.B $PCP_PMDAS_DIR/rpm/Install
installation script for the
.B pmdarpm
agent
.TP 10
.B $PCP_PMDAS_DIR/rpm/Remove
undo installation script for the 
.B pmdarpm
agent
.TP 10
.B $PCP_LOG_DIR/pmcd/rpm.log
default log file for error messages and other information from
.B pmdarpm
.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 pcp.conf (5)
and
.BR pcp.env (5).