[Bug 1978913] Re: [SRU] ceph-osd takes all memory at boot

[Dan Hill]

This issue is fixed upstream in Quincy 17.2.4 [0], and should be
included in the upcoming Pacific 16.2.11 [1] point release.

Before we can pursue an SRU for Octopus, this issue needs to be fixed in
Ubuntu across all subsequent releases.

Upstream ran into regressions with the previous fix [2]. We need to
exercise caution and allow some time for problems to surface. The
Pacific fix hasn't been released yet and will need at least a month to
bake before it receives a point release SRU.

[0] https://github.com/ceph/ceph/pull/47688
[1] https://github.com/ceph/ceph/pull/47701
[2] https://lists.ceph.io/hyperkitty/list/dev@ceph.io/message/TQB65XS43SO7P6LO6MICJHIROEJBWAAT/

** Tags added: sts

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https://bugs.launchpad.net/bugs/1978913

Title:
  [SRU] ceph-osd takes all memory at boot

Status in Ubuntu Cloud Archive:
  New
Status in Ubuntu Cloud Archive queens series:
  New
Status in Ubuntu Cloud Archive ussuri series:
  New
Status in Ubuntu Cloud Archive wallaby series:
  New
Status in Ubuntu Cloud Archive xena series:
  New
Status in Ubuntu Cloud Archive yoga series:
  New
Status in ceph package in Ubuntu:
  New
Status in ceph source package in Bionic:
  New
Status in ceph source package in Focal:
  New
Status in ceph source package in Jammy:
  New
Status in ceph source package in Kinetic:
  New

Bug description:
  [Impact]
  ceph-osd takes all memory at boot

  [Test Plan]
  https://tracker.ceph.com/issues/53729

  [Where problems could occur]
  Trimming large clusters could be time consuming.

  [Other Info]
  The way this is fixed is that the PGLog needs to trim duplicates by the number of entries rather than the versions. That way, we prevent unbounded duplicate growth.

  Reported upstream at https://tracker.ceph.com/issues/53729 and fixed
  on master through https://github.com/ceph/ceph/pull/47046

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