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https://issues.apache.org/jira/browse/SPARK-24819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16569509#comment-16569509
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Apache Spark commented on SPARK-24819:
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User 'jiangxb1987' has created a pull request for this issue:
https://github.com/apache/spark/pull/22001
> Fail fast when no enough slots to launch the barrier stage on job submitted
> ---------------------------------------------------------------------------
>
> Key: SPARK-24819
> URL: https://issues.apache.org/jira/browse/SPARK-24819
> Project: Spark
> Issue Type: New Feature
> Components: Spark Core
> Affects Versions: 2.4.0
> Reporter: Jiang Xingbo
> Priority: Major
>
> Check all the barrier stages on job submitted, to see whether the barrier
> stages require more slots (to be able to launch all the barrier tasks in the
> same stage together) than currently active slots in the cluster. If the job
> requires more slots than available (both busy and free slots), fail the job
> on submit.
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