Crash plugin¶
The crash plugin collects information about daemon crashdumps and stores it in the Ceph cluster for later analysis.
Daemon crashdumps are dumped in /var/lib/ceph/crash by default; this can be configured with the option ‘crash dir’. Crash directories are named by time and date and a randomly-generated UUID, and contain a metadata file ‘meta’ and a recent log file, with a “crash_id” that is the same. This plugin allows the metadata about those dumps to be persisted in the monitors’ storage.
Enabling¶
The crash module is enabled with:
ceph mgr module enable crash
Commands¶
ceph crash post -i <metafile>
Save a crash dump. The metadata file is a JSON blob stored in the crash
dir as meta. As usual, the ceph command can be invoked with -i -,
and will read from stdin.
ceph rm <crashid>
Remove a specific crash dump.
ceph crash ls
List the timestamp/uuid crashids for all saved crash info.
ceph crash stat
Show a summary of saved crash info grouped by age.
ceph crash info <crashid>
Show all details of a saved crash.
ceph crash prune <keep>
Remove saved crashes older than ‘keep’ days. <keep> must be an integer.
