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https://issues.apache.org/jira/browse/ZOOKEEPER-2420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ed Rowe updated ZOOKEEPER-2420:
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Description: Autopurge retains all log files whose zxid are >= the zxid of
the oldest snapshot 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 the log file prior to the oldest retained snapshot as well, unless it
verifies that it contains no zxids beyond what the snapshot contains. (was:
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 the log file prior
to the first snapshot as well unless it verifies that it contains no zxids
beyond what the snapshot contains. )
> Autopurge deletes log file prior to oldest retained snapshot even though
> restore may 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
> snapshot 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 the log file prior to the oldest retained snapshot as
> well, unless it verifies that it contains no zxids beyond what the snapshot
> contains.
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