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Posted to issues@spark.apache.org by "Lianhui Wang (JIRA)" <ji...@apache.org> on 2015/10/22 18:17:27 UTC

[jira] [Updated] (SPARK-11252) andrewor14

     [ https://issues.apache.org/jira/browse/SPARK-11252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lianhui Wang updated SPARK-11252:
---------------------------------
    Summary: andrewor14   (was: ExternalShuffleClient should release connection after it had completed to fetch blocks from yarn's NameManager)

> andrewor14 
> -----------
>
>                 Key: SPARK-11252
>                 URL: https://issues.apache.org/jira/browse/SPARK-11252
>             Project: Spark
>          Issue Type: Bug
>          Components: Shuffle, YARN
>            Reporter: Lianhui Wang
>
> ExternalShuffleClient of executors reserve its connection with yarn's NodeManager until application has been completed. so it will make NodeManager has many socket connections.
> in order to reduce network pressure of NodeManager's shuffleService, after registerWithShuffleServer or fetchBlocks have been completed in ExternalShuffleClient,  connection for shuffleService needs to be closed.



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