Ed Rowe created ZOOKEEPER-2420:
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Summary: Autopurge deletes log file prior to oldest retained
snapshot even though restore would need it
Key: ZOOKEEPER-2420
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2420
Project: ZooKeeper
Issue Type: Bug
Components: server
Reporter: Ed Rowe
Autopurge retains all log files whose zxid are >= the zxid of the oldest log
file that it is going to retain (in PurgeTxnLog retainNRecentSnapshots()).
Given that loading the database from snapshots/logs will start with the log
file _prior_ to the snapshot's zxid, autopurge should retain this log file as
well unless it verifies that it contains no zxids beyond what the snapshot
contains.
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