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https://issues.apache.org/jira/browse/SPARK-10842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-10842:
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Assignee: (was: Apache Spark)
> Eliminate create duplicate stage while generate job dag
> -------------------------------------------------------
>
> Key: SPARK-10842
> URL: https://issues.apache.org/jira/browse/SPARK-10842
> Project: Spark
> Issue Type: Improvement
> Components: Scheduler
> Affects Versions: 1.5.0
> Reporter: SuYan
> Priority: Minor
>
> When we traverse RDD, to generate Stage DAG, Spark will skip judge the stage
> whether it add into *shuffleIdToStage* in some condition: get shuffleDep from
> *getAncestorShuffleDependency*
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