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https://issues.apache.org/jira/browse/SPARK-25594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17150729#comment-17150729
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Mridul Muralidharan commented on SPARK-25594:
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Given regression in functionality if this is merged, closing bug.
See comment: https://github.com/apache/spark/pull/22609#issuecomment-426405757
> OOM in long running applications even with UI disabled
> ------------------------------------------------------
>
> Key: SPARK-25594
> URL: https://issues.apache.org/jira/browse/SPARK-25594
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.0, 2.4.0
> Reporter: Mridul Muralidharan
> Assignee: Mridul Muralidharan
> Priority: Major
>
> Typically for long running applications with large number of tasks it is
> common to disable UI to minimize overhead at driver.
> Earlier, with spark ui disabled, only stage/job information was kept as part
> of JobProgressListener.
> As part of history server scalability fixes, particularly SPARK-20643,
> inspite of disabling UI - task information continues to be maintained in
> memory.
> In our long running tests against spark thrift server, this eventually
> results in OOM.
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