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diff --git a/src/pmdas/systemd/README b/src/pmdas/systemd/README new file mode 100644 index 0000000..3125da1 --- /dev/null +++ b/src/pmdas/systemd/README @@ -0,0 +1,64 @@ +Systemd PMDA +=========== + +This PMDA exports events from the systemd journal [1] as they occur. +There is no configuration required. In the default (daemon) PMDA +mode, the daemon switches to userid 'adm', so it can report systemwide +journal entries. + +[1] http://www.freedesktop.org/wiki/Software/systemd + + +Metrics +======= + +The file ./help contains descriptions for all of the metrics exported +by this PMDA. + +Once the PMDA has been installed, the following command will list all +the available metrics and their explanatory "help" text: + + $ pminfo -fT systemd + +The interesting metrics are systemd.journal.records and +systemd.journal.records_raw. When a PCP client such as pmevent +monitors them, each new journal entry is reported as a PCP event +tuple. Each field of the journal entry is transcribed as a string or +blob, including the FIELDNAME= prefix. See [2] for more details about +interpretation of the fields. + +[2] http://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html + + +Installation +============ + + + # cd $PCP_PMDAS_DIR/systemd + + + Check that there is no clash in the Performance Metrics Domain + defined in ./domain.h and the other PMDAs currently in use (see + $PCP_PMCDCONF_PATH). If there is, edit ./domain.h to choose another + domain number. + + + Then simply use + + # ./Install + + and choose both the "collector" and "monitor" installation + configuration options -- everything else is automated. + +De-installation +=============== + + + Simply use + + # cd $PCP_PMDAS_DIR/systemd + # ./Remove + +Troubleshooting +=============== + + + After installing or restarting the agent, the PMCD log file + ($PCP_LOG_DIR/pmcd/pmcd.log) and the PMDA log file + ($PCP_LOG_DIR/pmcd/systemd.log) should be checked for any warnings + or errors. |