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https://issues.apache.org/jira/browse/FLINK-2929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14986310#comment-14986310
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Stephan Ewen commented on FLINK-2929:
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That sounds good, but should be have the option before we add the "purge
zookeeper" mode as the default, so that there is always one way for upgrades
possible?
> Recovery of jobs on cluster restarts
> ------------------------------------
>
> Key: FLINK-2929
> URL: https://issues.apache.org/jira/browse/FLINK-2929
> Project: Flink
> Issue Type: Improvement
> Affects Versions: 0.10
> Reporter: Ufuk Celebi
>
> Recovery information is stored in ZooKeeper under a static root like
> {{/flink}}. In case of a cluster restart without canceling running jobs old
> jobs will be recovered from ZooKeeper.
> This can be confusing or helpful depending on the use case.
> I suspect that the confusing case will be more common.
> We can change the default cluster start up (e.g. new YARN session or new
> ./start-cluster call) to purge all existing data in ZooKeeper and add a flag
> to not do this if needed.
> [[email protected]], [~aljoscha], [~StephanEwen] what's your opinion?
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