ceph/doc/mgr/crash.rst
Dan Mick eb1103e94d doc/mgr: add doc for crash mgr module
Signed-off-by: Dan Mick <dan.mick@redhat.com>
2018-06-29 14:53:14 -07:00

61 lines
1.2 KiB
ReStructuredText

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.