Crash Module ============ The crash module 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 module 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 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 crash rm Remove a specific crash dump. :: ceph crash ls List the timestamp/uuid crashids for all new and archived crash info. :: ceph crash ls-new List the timestamp/uuid crashids for all newcrash info. :: ceph crash stat Show a summary of saved crash info grouped by age. :: ceph crash info Show all details of a saved crash. :: ceph crash prune Remove saved crashes older than 'keep' days. must be an integer. :: ceph crash archive Archive a crash report so that it is no longer considered for the ``RECENT_CRASH`` health check and does not appear in the ``crash ls-new`` output (it will still appear in the ``crash ls`` output). :: ceph crash archive-all Archive all new crash reports. Options ------- * ``mgr/crash/warn_recent_interval`` [default: 2 weeks] controls what constitutes "recent" for the purposes of raising the ``RECENT_CRASH`` health warning. * ``mgr/crash/retain_interval`` [default: 1 year] controls how long crash reports are retained by the cluster before they are automatically purged.