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Posted to issues@spark.apache.org by "Thomas Graves (JIRA)" <ji...@apache.org> on 2016/07/11 14:06:11 UTC

[jira] [Commented] (SPARK-16455) Add a new hook in CoarseGrainedSchedulerBackend in order to stop scheduling new tasks when cluster is restarting

    [ https://issues.apache.org/jira/browse/SPARK-16455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15370828#comment-15370828 ] 

Thomas Graves commented on SPARK-16455:
---------------------------------------

| we are implementing a new mechanism which will let driver survive when cluster is temporarily down

what is the jira you are doing this under?  Curious on the details.

> Add a new hook in CoarseGrainedSchedulerBackend in order to stop scheduling new tasks when cluster is restarting
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-16455
>                 URL: https://issues.apache.org/jira/browse/SPARK-16455
>             Project: Spark
>          Issue Type: New Feature
>          Components: Scheduler
>            Reporter: YangyangLiu
>            Priority: Minor
>
> In our case, we are implementing a new mechanism which will let driver survive when cluster is temporarily down and restarting. So when the service provided by cluster is not available, scheduler should stop scheduling new tasks. I added a hook inside CoarseGrainedSchedulerBackend class, in order to avoid new task scheduling when it's necessary.



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