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https://issues.apache.org/jira/browse/MAPREDUCE-3602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176058#comment-13176058
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Patrick Wendell commented on MAPREDUCE-3602:
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The MR2 node update API already has hooks for the RM to tell the NM to release
containers. Are there any problems using this method to preempt containers?
I.e. will application masters handle unexpected container disruption gracefully
or are there other considerations if we want the scheduler to preempt?
> Add Preemption to MR2 Fair Scheduler
> ------------------------------------
>
> Key: MAPREDUCE-3602
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3602
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: scheduler
> Reporter: Patrick Wendell
> Assignee: Patrick Wendell
>
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