[Bug 1871820] Re: luminous: bluestore rocksdb max_background_compactions regression in 12.2.13

[Launchpad Bug Tracker]

This bug was fixed in the package ceph - 12.2.13-0ubuntu0.18.04.2

---------------
ceph (12.2.13-0ubuntu0.18.04.2) bionic; urgency=medium

  * d/p/bug1871820.patch: Revert change in default concurrency for
    rocksdb background compactions to avoid potential data loss
    (LP: #1871820).

ceph (12.2.13-0ubuntu0.18.04.1) bionic; urgency=medium

  * New upstream point release (LP: #1861793).
  * d/p/bug1847544.patch,ceph-volume-wait-for-lvs.patch,dont-validate-fs-
    caps-on-authorize.patch,issue37490.patch,issue38454.patch,rgw-gc-use-
    aio.patch: Drop, all included in upstream release.
  * d/p/*: Refresh as needed.
  * d/p/bug1804261.patch: Cherry pick fix to ensure that ceph-volume
    tries and interval environment variables are converted to int
    (LP: #1804261).

 -- James Page <james.page at ubuntu.com>  Tue, 19 May 2020 08:40:13 +0100

** Changed in: ceph (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

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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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