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https://issues.apache.org/jira/browse/SPARK-11082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14954629#comment-14954629
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Apache Spark commented on SPARK-11082:
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User 'jerryshao' has created a pull request for this issue:
https://github.com/apache/spark/pull/9095
> Cores per executor is wrong when response vcore number is less than requested
> number
> ------------------------------------------------------------------------------------
>
> Key: SPARK-11082
> URL: https://issues.apache.org/jira/browse/SPARK-11082
> Project: Spark
> Issue Type: Bug
> Components: YARN
> Affects Versions: 1.6.0
> Reporter: Saisai Shao
>
> When DefaultResourceCalculator is set (by default) for Yarn capacity
> scheduler, the response container resource vcore number is always 1, which
> may be less than the requested vcore number, ExecutorRunnable should honor
> this returned vcore number (not the requested number) to pass to each
> executor. Otherwise, actual allocated vcore number is different from Spark's
> managed CPU cores per executor.
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