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https://issues.apache.org/jira/browse/SPARK-4994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14260082#comment-14260082
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Apache Spark commented on SPARK-4994:
-------------------------------------

User 'lianhuiwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/3828

> Cleanup removed executors' ShuffleInfo in yarn shuffle service
> --------------------------------------------------------------
>
>                 Key: SPARK-4994
>                 URL: https://issues.apache.org/jira/browse/SPARK-4994
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 1.2.0
>            Reporter: Lianhui Wang
>
> when the application is completed, yarn's nodemanager can remove 
> application's local-dirs.but all executors' metadata of completed application 
> havenot be removed. now it let yarn ShuffleService to have much more memory 
> to store Executors' ShuffleInfo. so these metadata need to be removed.



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