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https://issues.apache.org/jira/browse/SPARK-34087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17267091#comment-17267091
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Apache Spark commented on SPARK-34087:
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User 'cfmcgrady' has created a pull request for this issue:
https://github.com/apache/spark/pull/31231
> a memory leak occurs when we clone the spark session
> ----------------------------------------------------
>
> Key: SPARK-34087
> URL: https://issues.apache.org/jira/browse/SPARK-34087
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.0.1
> Reporter: Fu Chen
> Priority: Major
> Attachments: 1610451044690.jpg
>
>
> In Spark-3.0.1, the memory leak occurs when we keep cloning the spark session
> because a new ExecutionListenerBus instance will add to AsyncEventQueue when
> we clone a new session.
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