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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/07/22 08:28:02 UTC

[jira] [Commented] (SPARK-21506) The description of "spark.executor.cores" may be not correct

    [ https://issues.apache.org/jira/browse/SPARK-21506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16097171#comment-16097171 ] 

Apache Spark commented on SPARK-21506:
--------------------------------------

User '10110346' has created a pull request for this issue:
https://github.com/apache/spark/pull/18711

> The description of "spark.executor.cores" may be not  correct
> -------------------------------------------------------------
>
>                 Key: SPARK-21506
>                 URL: https://issues.apache.org/jira/browse/SPARK-21506
>             Project: Spark
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions: 2.3.0
>            Reporter: liuxian
>
> The description for "spark.executor.cores" :"The number of cores assigned to each executor is configurable. When this is not explicitly set, only one executor per application will run the same worker "
> I think it is not correct, because if  one  application is not assigned enough cores in the first `schedule()`, another executor may be launched on the same worker in the next time.



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