[jira] [Commented] (SPARK-9468) Avoid scheduling tasks on preemption executors

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-9468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14647286#comment-14647286 ] 

Apache Spark commented on SPARK-9468:
-------------------------------------

User 'jerryshao' has created a pull request for this issue:
https://github.com/apache/spark/pull/7786

> Avoid scheduling tasks on preemption executors
> ----------------------------------------------
>
>                 Key: SPARK-9468
>                 URL: https://issues.apache.org/jira/browse/SPARK-9468
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core, YARN
>            Reporter: Saisai Shao
>            Priority: Minor
>
> Currently Spark SchedulerBackend has no mechanism to be notified of preemption of executors by cluster manager, this will make SchedulerBackend keep scheduling tasks on the to-be-preempted executors and finally be failed. Also this cumulative failure will possibly lead to job failure.
> So Spark SchedulerBackend should be notified and avoid scheduling tasks on preemption nodes to avoid unnecessary failure. 



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