[jira] [Updated] (ZOOKEEPER-2994) Tool required to recover log and snapshot entries with CRC errors

["Andor Molnar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-2994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andor Molnar updated ZOOKEEPER-2994:
------------------------------------
    Fix Version/s: 3.6.0

> Tool required to recover log and snapshot entries with CRC errors
> -----------------------------------------------------------------
>
>                 Key: ZOOKEEPER-2994
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2994
>             Project: ZooKeeper
>          Issue Type: New Feature
>            Reporter: Andor Molnar
>            Assignee: Andor Molnar
>            Priority: Major
>             Fix For: 3.5.4, 3.6.0
>
>
> In the even that the zookeeper transaction log or snapshot become corrupted and fail CRC checks (preventing startup) we should have a mechanism to get the cluster running again.
> Previously with achieved this by loading the broken transaction log with a modified version of ZK with disabled CRC check and forced it to snapshot.
> It'd very handy to have a tool which can do this for us. LogFormatter and SnapshotFormatter have already been designed to dump log and snapshot files, it'd be nice to extend their functionality and add ability for such recovery.



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