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https://issues.apache.org/jira/browse/SPARK-23508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-23508.
---------------------------------
Resolution: Fixed
Fix Version/s: 2.3.1
2.4.0
2.2.2
Issue resolved by pull request 20667
[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
> Assignee: zhoukang
> Priority: Major
> Fix For: 2.2.2, 2.4.0, 2.3.1
>
> 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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