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https://issues.apache.org/jira/browse/SPARK-24437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16679840#comment-16679840
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Eyal Farago commented on SPARK-24437:
-------------------------------------
[~dvogelbacher], I think what you actually want is somewhat described in
SPARK-17556 which seems to be stuck at the moment.
> Memory leak in UnsafeHashedRelation
> -----------------------------------
>
> Key: SPARK-24437
> URL: https://issues.apache.org/jira/browse/SPARK-24437
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: gagan taneja
> Priority: Critical
> Attachments: Screen Shot 2018-05-30 at 2.05.40 PM.png, Screen Shot
> 2018-05-30 at 2.07.22 PM.png, Screen Shot 2018-11-01 at 10.38.30 AM.png
>
>
> There seems to memory leak with
> org.apache.spark.sql.execution.joins.UnsafeHashedRelation
> We have a long running instance of STS.
> With each query execution requiring Broadcast Join, UnsafeHashedRelation is
> getting added for cleanup in ContextCleaner. This reference of
> UnsafeHashedRelation is being held at some other Collection and not becoming
> eligible for GC and because of this ContextCleaner is not able to clean it.
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