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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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PMLOGGER_MERGE(1) General Commands Manual PMLOGGER_MERGE(1)
pmlogger_merge - helper script to merge Performance Co-Pilot
archives
$PCP_BINADM_DIR/pmlogger_merge [-fNVE?] [input-basename ...
output-name]
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 archives 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. The input-basename
arguments may contain meta characters in the style of sh(1).
If any of the files that are components of the input-basename
archives has been compressed then on success pmlogger_merge will
compress output-name using pmlogcompress(1).
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 archive
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).
PCPIntro(1), pmlogcompress(1), pmlogextract(1), pmlogger(1) and
pmlogger_daily(1).
This page is part of the PCP (Performance Co-Pilot) project.
Information about the project can be found at
⟨http://www.pcp.io/⟩. If you have a bug report for this manual
page, send it to pcp@groups.io. This page was obtained from the
project's upstream Git repository
⟨https://github.com/performancecopilot/pcp.git⟩ on 2025-08-11.
(At that time, the date of the most recent commit that was found
in the repository was 2025-08-11.) 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
man-pages@man7.org
Performance Co-Pilot PCP PMLOGGER_MERGE(1)
Pages that refer to this page: pmlogger_daily(1)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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