pmlogger_merge(1) — Linux manual page


PMLOGGER_MERGE(1)          General Commands Manual         PMLOGGER_MERGE(1)

NAME         top

       pmlogger_merge - helper script to merge Performance Co-Pilot archives

SYNOPSIS         top

       $PCP_BINADM_DIR/pmlogger_merge [-fNVE?]  [input-basename ... output-

DESCRIPTION         top

       pmlogger_merge is a helper script that is used by pmlogger_daily(1)
       when merging all of the Performance Co-Pilot (PCP) archives for a
       single host on a single day into a combined PCP archive.

       pmlogger_merge is a wrapper script for pmlogextract(1) that merges
       all of the archive logs matching the input-basename arguments, and
       creates a new archive using output-name as the base name for the
       physical files that constitute an archive log.  The input-basename
       arguments may contain meta characters in the style of sh(1).

OPTIONS         top

       The available command line options are:

       -f, --force
            This option causes all of the input files to be removed once the
            output archive has been created.

       -N, --showme
            Runs pmlogger_merge in a ``show me'' or ``dry run'' mode where
            the tasks that would be performed are reported, but no changes
            are made.  This is typically used for debugging in combination
            with one (verbose) or two (very verbose) -V options.

       -V, --verbose
            Increase verbosity in the output progress report.

       -E, --expunge
            When metric metadata differences are encountered between
            archives to be merged, the default behaviour is for
            pmlogger_merge to fail with a fatal error and the output-name
            archive is not created.  The -E flag instead issues a warning
            and excludes the affected metrics from the merged output
            archive.  This is intended for automated daily log rotation
            where it is highly desirable for unattended daily archive
            merging, rewriting and compression to succeed.  See also
            pmlogger_daily(1) and the -x flag to pmlogextract(1).

       -?, --help
            Display usage message and exit.


       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), pmlogextract(1), pmlogger(1) and pmlogger_daily(1).

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                   PMLOGGER_MERGE(1)

Pages that refer to this page: pmlogger_check(1)pmlogger_daily(1)