[Bug 1769252] Re: [SRU] 12.2.5

Launchpad Bug Tracker 1769252 at bugs.launchpad.net
Fri May 11 12:30:07 UTC 2018


Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: ceph (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1769252

Title:
  [SRU] 12.2.5

Status in ceph package in Ubuntu:
  Confirmed

Bug description:
  Hi
  I noticed the new ceph 12.2.5 release and no bug for it so here is a draft for it.

  Notes and changelog.
  https://ceph.com/releases/v12-2-5-luminous-released/

  [Impact]
  New upstream point release 12.2.5
  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.

  [Test Case]
  See the changelog with individual bugs with numbers and links to them where available.

  [Regression Potential]
  Note again from previous released version 12.2.3:

  If someone update and restart any MDS (jewel or luminous before 12.2.3 to 12.2.3 or later, then all MDS's not yet running the new version and not aware of feature bit 9 will suicide.
  Operators may ignore the error messages and continue upgrading/restarting or follow this upgrade sequence to avoid it:

  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.

  Need good testing to make sure it is correct and stable, compared with
  previous version, before moving forward.

  Running earlier versions cause a higher risk to encounter an issue
  that have already been corrected.

  [Discussion]
  Please correct this description when needed. Also thanks to all that are working on this.
  SRU process: https://wiki.ubuntu.com/OpenStackUpdates

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