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https://issues.apache.org/jira/browse/SPARK-14269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-14269:
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Assignee: Apache Spark
> Eliminate unnecessary submitStage() call.
> -----------------------------------------
>
> Key: SPARK-14269
> URL: https://issues.apache.org/jira/browse/SPARK-14269
> Project: Spark
> Issue Type: Improvement
> Components: Scheduler
> Reporter: Takuya Ueshin
> Assignee: Apache Spark
>
> Currently a method {{submitStage()}} for waiting stages is called on every
> iteration of the event loop in {{DAGScheduler}} to submit all waiting stages,
> but most of them are not necessary because they are not related to Stage
> status.
> The case we should try to submit waiting stages is only when their parent
> stages are successfully completed.
> This elimination can improve {{DAGScheduler}} performance.
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