pmlogger_merge - helper script to merge Performance Co-Pilot archives
$PCP_BINADM_DIR/pmlogger_merge [-fNVE?] [input-basename ...
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).
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
- -?, --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).