I'm running a working Icinga2 installation with Graphite and PerfData modules enabled. PerfDataWriter and GraphiteWriter are working but PerfData files are not automaticaly purged. PerfData directory (/var/spool/icinga2/perfdata) is increasing daily and I didn't find any advise about how to purge those files.
Can I clean PerfData directory?
How many data I need to keep on it?