pmdarpm(1) — Linux manual page


PMDARPM(1)                 General Commands Manual                PMDARPM(1)

NAME         top

       pmdarpm - RPM packages performance metrics domain agent (PMDA)

SYNOPSIS         top

       $PCP_PMDAS_DIR/rpm/pmdarpm [-C] [-d domain] [-l logfile] [-r path]
       [-U username]

DESCRIPTION         top

       pmdarpm is a Performance Metrics Domain Agent (PMDA) which extracts
       performance metrics reflecting the state of the RPM package database
       managed by rpm(1).

       The 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.

       A brief description of the pmdarpm command line options follows:

       -C   Verify the package iteration code by scanning the RPM database
            once, then exiting.  Only useful for problem diagnosis and

       -d   It is absolutely crucial that the performance metrics domain
            number specified here is unique and consistent.  That is, domain
            should be different for every PMDA on the one host, and the same
            domain number should be used for the same PMDA on all hosts.

       -l   Location of the log file.  By default, a log file named rpm.log
            is written in the current directory of pmcd(1) when pmdarpm is
            started, i.e.  $PCP_LOG_DIR/pmcd.  If the log file cannot be
            created or is not writable, output is written to the standard
            error instead.

       -r   Specify an alternate path to the RPM database (default is

       -U   User account under which to run the agent.  The default is the
            unprivileged "pcp" account.

INSTALLATION         top

       If you want access to the names, help text and values for the rpm
       performance metrics, do the following as root:

            # cd $PCP_PMDAS_DIR/rpm
            # ./Install

       If you want to undo the installation, do the following as root:

            # cd $PCP_PMDAS_DIR/rpm
            # ./Remove

       pmdarpm is launched by pmcd(1) and should never be executed directly.
       The Install and Remove scripts notify pmcd(1) when the agent is
       installed or removed.

FILES         top

                 command line options used to launch pmdarpm
                 default help text file for the rpm metrics
                 installation script for the pmdarpm agent
                 undo installation script for the pmdarpm agent
                 default log file for error messages and other information
                 from pmdarpm


       Environment variables with the prefix PCP_ are used to parameterize
       the file and directory names used by PCP.  On each installation, the
       file /etc/pcp.conf contains the local values for these variables.
       The $PCP_CONF variable may be used to specify an alternative
       configuration file, as described in pcp.conf(5).

SEE ALSO         top

       PCPIntro(1), pmcd(1), pcp.conf(5) and pcp.env(5).

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at ⟨⟩.
       If you have a bug report for this manual page, send it to  This page was obtained from the project's upstream
       Git repository ⟨⟩ on
       2020-08-13.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-08-11.)  If you discover any
       rendering problems in this HTML version of the page, or you believe
       there is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

Performance Co-Pilot                 PCP                          PMDARPM(1)