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PendingReleaseNotes: add a note about SnapMapper key coversion

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Signed-off-by: Matan Breizman <mbreizma@redhat.com>
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Matan Breizman 2022-07-21 16:23:58 +00:00
parent a901e49b94
commit 131f8bedfa
1 changed files with 13 additions and 0 deletions
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PendingReleaseNotes
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@ -65,3 +65,16 @@ Relevant tracker: https://tracker.ceph.com/issues/55521
For more details, see:
https://docs.ceph.com/en/latest/mgr/telemetry/
>=15.2.17
* OSD: Octopus modified the SnapMapper key format from
<LEGACY_MAPPING_PREFIX><snapid>_<shardid>_<hobject_t::to_str()>
to
<MAPPING_PREFIX><pool>_<snapid>_<shardid>_<hobject_t::to_str()>
When this change was introduced, 94ebe0e also introduced a conversion
with a crucial bug which essentially destroyed legacy keys by mapping them
to
<MAPPING_PREFIX><poolid>_<snapid>_
without the object-unique suffix. The conversion is fixed in this release.
Relevant tracker: https://tracker.ceph.com/issues/5614