[jira] [Updated] (ZOOKEEPER-2420) Autopurge deletes log file prior to oldest retained snapshot even though restore may need it

["Ed Rowe (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-2420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ed Rowe updated ZOOKEEPER-2420:
-------------------------------
    Summary: Autopurge deletes log file prior to oldest retained snapshot even though restore may need it  (was: Autopurge deletes log file prior to oldest retained snapshot even though restore would need it)

> 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 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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