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https://issues.apache.org/jira/browse/SPARK-1860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14154228#comment-14154228
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Aaron Davidson commented on SPARK-1860:
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Your logic SGTM, but I would add one additional check to avoid deleting the
directory for an Application which still has running Executors on that node,
just to make absolutely sure that we don't delete app directories that just
happen to sit idle for a while. This check can be performed by iterating over
the "executors" map in Worker.scala and matching the appId with the app
directory's name.
> Standalone Worker cleanup should not clean up running executors
> ---------------------------------------------------------------
>
> Key: SPARK-1860
> URL: https://issues.apache.org/jira/browse/SPARK-1860
> Project: Spark
> Issue Type: Bug
> Components: Deploy
> Affects Versions: 1.0.0
> Reporter: Aaron Davidson
> Priority: Blocker
>
> The default values of the standalone worker cleanup code cleanup all
> application data every 7 days. This includes jars that were added to any
> executors that happen to be running for longer than 7 days, hitting streaming
> jobs especially hard.
> Executor's log/data folders should not be cleaned up if they're still
> running. Until then, this behavior should not be enabled by default.
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