Derek Dagit created ZOOKEEPER-1797:
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Summary: PurgeTxnLog may delete data logs during roll
Key: ZOOKEEPER-1797
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1797
Project: ZooKeeper
Issue Type: Bug
Affects Versions: 3.4.5
Reporter: Derek Dagit
org.apache.zookeeper.server.PurgeTxnLog deletes old data logs and snapshots,
keeping the newest N snapshots and any data logs that have been written since
the snapshot.
It does this by listing the available snapshots & logs and creates a blacklist
of snapshots and logs that should not be deleted. Then, it searches for and
deletes all logs and snapshots that are not in this list.
It appears that if logs are rolling or a new snapshot is created during this
process, then these newer files will be unintentionally deleted.
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