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