Swaminathan Balachandran created HDDS-11453:
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Summary: OmSnapshotPurge should be in a different ozone manager
double buffer batch
Key: HDDS-11453
URL: https://issues.apache.org/jira/browse/HDDS-11453
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Swaminathan Balachandran
Assignee: Swaminathan Balachandran
Since purgeSnapshot transaction on a standalone basis is an idempotent
operation. Once the directory gets deleted the previous transactions that have
been performed on the snapshotted rocksdb would start failing on replay since
those transactions have not been committed but the directory could have been
partially deleted/ fully deleted. This could also lead to inconsistencies in
the DB reads from the purged rocksdb if operations are not performed
consciously.
Creating a separate rocksdb batch in ozone manager double buffer will ensure
all transactions before have been flushed to the disk before purging the
rocksdb, ensuring the previous ratis transactions will never get replayed.
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