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https://issues.apache.org/jira/browse/SPARK-38093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17635786#comment-17635786
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Mars commented on SPARK-38093:
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comment https://github.com/apache/spark/pull/34122#discussion_r796929787
> Set shuffleMergeAllowed to false for a determinate stage after the stage is
> finalized
> -------------------------------------------------------------------------------------
>
> Key: SPARK-38093
> URL: https://issues.apache.org/jira/browse/SPARK-38093
> Project: Spark
> Issue Type: Sub-task
> Components: Shuffle
> Affects Versions: 3.2.1
> Reporter: Venkata krishnan Sowrirajan
> Priority: Major
>
> Currently we are setting shuffleMergeAllowed to false before
> prepareShuffleServicesForShuffleMapStage if the shuffle dependency is already
> finalized. Ideally it is better to do it right after shuffle dependency
> finalization for a determinate stage. cc [~mridulm80]
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