Upstream has addressed a regression in 15.2.2 causing potential OSD
corruption [0]. 15.2.3 was just released to address this issue [1].

The recommendation is to upgrade to 15.2.3 directly, skipping 15.2.2, or apply 
a workaround disabling bluefs_preextend_wal_files while on 15.2.2:
ceph config set osd bluefs_preextend_wal_files false

[0] https://tracker.ceph.com/issues/45613
[1] https://ceph.io/community/v15-2-3-octopus-released/

** Bug watch added: tracker.ceph.com/issues #45613
   http://tracker.ceph.com/issues/45613

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https://bugs.launchpad.net/bugs/1880084

Title:
  [SRU] ceph 15.2.2

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