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squid: mds/quiesce-db: track db epoch separately from the membership epoch #57558

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@leonid-s-usov leonid-s-usov commented May 20, 2024

Fixes: https://tracker.ceph.com/issues/66070

Backport

Original-issue: https://tracker.ceph.com/issues/65977
Original-PR: #57454

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…a root

Signed-off-by: Leonid Usov <leonid.usov@ibm.com>
(cherry picked from commit f58f63c)
Fixes: https://tracker.ceph.com/issues/66070
Tracking the db epoch separately will make sure that replicas
only follow leader's epoch choice, even if they are already on
the new membership epoch. This eliminates races due to the
random order of mdsmap updates.

Fixes: https://tracker.ceph.com/issues/65977
Signed-off-by: Leonid Usov <leonid.usov@ibm.com>
(cherry picked from commit 379ef71)
Fixes: https://tracker.ceph.com/issues/66070
Prevent sending of the same version to the same peer more than once a second

Signed-off-by: Leonid Usov <leonid.usov@ibm.com>
(cherry picked from commit eebf597)
Fixes: https://tracker.ceph.com/issues/66070
@leonid-s-usov leonid-s-usov requested a review from a team May 20, 2024 08:36
@github-actions github-actions bot added cephfs Ceph File System tests labels May 20, 2024
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This backport will be handled by a different PR

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