Siyao Meng created HDDS-15888:
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             Summary: Stamp lastTransactionInfo on snapshot deletion so 
snapshot GC waits for the deletion to be flushed
                 Key: HDDS-15888
                 URL: https://issues.apache.org/jira/browse/HDDS-15888
             Project: Apache Ozone
          Issue Type: Bug
          Components: Snapshot
            Reporter: Siyao Meng
            Assignee: Siyao Meng


Unlike create/moveTableKeys/purge, {{OMSnapshotDeleteRequest}} never stamps 
{{{}lastTransactionInfo{}}}. {{areSnapshotChangesFlushedToDB()}} therefore 
reads the stale create-time stamp and reports an unflushed deletion as flushed, 
so {{SnapshotDeletingService}} does not defer it and can purge the snapshot 
while the delete and purge exist only in the double buffer.



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