[Bug 1871820] Update Released

[Łukasz Zemczak]

The verification of the Stable Release Update for ceph has completed
successfully and the package is now being released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1871820

Title:
  luminous: bluestore rocksdb max_background_compactions regression in
  12.2.13

Status in Ceph:
  Unknown
Status in ceph package in Ubuntu:
  Invalid
Status in ceph source package in Bionic:
  Fix Released

Bug description:
  There is a potential regression in the rocksdb
  max_background_compactions change in the 12.2.13 point release that is
  in bionic-proposed.

  https://tracker.ceph.com/issues/44937 was raised as the rocksdb
  version in the bionic ceph source does not contain:

    https://github.com/facebook/rocksdb/pull/3926

  which ensures that any overlap between background compactions is
  detected and handled.

  We either need to revert to a single background compaction as the
  default setting, or pick the fix into the rocksdb source in
  src:ceph/bionic

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