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https://issues.apache.org/jira/browse/SPARK-5336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14284067#comment-14284067
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Apache Spark commented on SPARK-5336:
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User 'WangTaoTheTonic' has created a pull request for this issue:
https://github.com/apache/spark/pull/4123
> spark.executor.cores must not be less than spark.task.cpus
> ----------------------------------------------------------
>
> Key: SPARK-5336
> URL: https://issues.apache.org/jira/browse/SPARK-5336
> Project: Spark
> Issue Type: Bug
> Components: YARN
> Reporter: WangTaoTheTonic
>
> If user set spark.executor.cores to be less than spark.task.cpus, task
> scheduler will fall in infinite loop, we should throw an exception.in that
> case.
> In standalone and mesos mode, we should respect spark.task.cpus too, and I
> will file another JIRA to solve that.
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