v12.2.5 Luminous released


This is the fifth bugfix release of Luminous v12.2.x long term stable release series. This release contains a range of bug fixes across all compoenents of Ceph. We recommend all the users of 12.2.x series to update.

Notable Changes

  • MGR

    The ceph-rest-api command-line tool included in the ceph-mon package has been obsoleted by the MGR “restful” module. The ceph-rest-api tool is hereby declared deprecated and will be dropped in Mimic.

    The MGR “restful” module provides similar functionality via a “pass through” method. See http://docs.ceph.com/docs/luminous/mgr/restful for details.

  • CephFS

    Upgrading an MDS cluster to 12.2.3+ will result in all active MDS exiting due to feature incompatibilities once an upgraded MDS comes online (even as standby). Operators may ignore the error messages and continue upgrading/restarting or follow this upgrade sequence:

    Reduce the number of ranks to 1 (ceph fs set <fs_name> max_mds 1), wait for all other MDS to deactivate, leaving the one active MDS, upgrade the single active MDS, then upgrade/start standbys. Finally, restore the previous max_mds.

    See also: https://tracker.ceph.com/issues/23172

Other Notable Changes