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https://issues.apache.org/jira/browse/SPARK-1860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14075911#comment-14075911
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Mingyu Kim commented on SPARK-1860:
-----------------------------------

Friendly ping? [~pwendell] Can you let me know if there is an easy way to tell 
from the worker node whether an app is active? Or, should we just go with the 
rather-fragile design as I proposed right above?

> Standalone Worker cleanup should not clean up running applications
> ------------------------------------------------------------------
>
>                 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: Critical
>             Fix For: 1.1.0
>
>
> The default values of the standalone worker cleanup code cleanup all 
> application data every 7 days. This includes jars that were added to any 
> applications that happen to be running for longer than 7 days, hitting 
> streaming jobs especially hard.
> Applications should not be cleaned up if they're still running. Until then, 
> this behavior should not be enabled by default.



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