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https://issues.apache.org/jira/browse/SPARK-16455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15371653#comment-15371653
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YangyangLiu commented on SPARK-16455:
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Oh, we are implementing a new feature in an internal tool. When the cluster is
restarting, we let driver wait until service is available again. So during
restarting, we try to stop scheduling new tasks.
> 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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