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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-23508) blockManagerIdCache in BlockManagerId may cause oom
Date Sat, 24 Feb 2018 11:03:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-23508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16375492#comment-16375492
] 

Apache Spark commented on SPARK-23508:
--------------------------------------

User 'caneGuy' has created a pull request for this issue:
https://github.com/apache/spark/pull/20667

> blockManagerIdCache in BlockManagerId may cause oom
> ---------------------------------------------------
>
>                 Key: SPARK-23508
>                 URL: https://issues.apache.org/jira/browse/SPARK-23508
>             Project: Spark
>          Issue Type: Bug
>          Components: Deploy, Spark Core
>    Affects Versions: 2.1.1, 2.2.1
>            Reporter: zhoukang
>            Priority: Major
>         Attachments: elepahnt-oom1.png, elephant-oom.png
>
>
> blockManagerIdCache in BlockManagerId will not remove old values which may cause oom
> {code:java}
> val blockManagerIdCache = new ConcurrentHashMap[BlockManagerId, BlockManagerId]()
> {code}
> Since whenever we apply a new BlockManagerId, it will put into this map.
> below is an jmap:
> !elepahnt-oom1.png!
> !elephant-oom.png!



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