Swaminathan Balachandran created HDDS-13847:
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Summary: Introduce Snapshot Content Lock to lock table contents
Key: HDDS-13847
URL: https://issues.apache.org/jira/browse/HDDS-13847
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Swaminathan Balachandran
Assignee: Swaminathan Balachandran
Introduce Snapshot Content Lock to prevent writes on a snapshot during snapshot
defrag. Even though GC lock would be acquired during defrag on leader the
contents in the snapshot is only guaranteed to be same for leader however
defrag on follower can happen at any time, thus a lock should be acquired while
the defrag to prevent the contents from changing in the snapshot which would
mainly happen in 3 transactions during OM double buffer flush on followers i.e.
OMSnapshotMoveTableKeysResponse, OMKeyPurgeResponse,
OMDirectoriesPurgeResponseWithFSO.
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