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https://issues.apache.org/jira/browse/YARN-2154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14663177#comment-14663177
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Karthik Kambatla commented on YARN-2154:
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Thanks for posting the approach here, Arun.
Observation: We are prioritizing marked resources over unmarked resources. If a
queue has some large jobs that have already started and a small job waiting for
resources for its AM to start, we prioritize large jobs. Is this okay? I feel
it might be.
> FairScheduler: Improve preemption to preempt only those containers that would
> satisfy the incoming request
> ----------------------------------------------------------------------------------------------------------
>
> Key: YARN-2154
> URL: https://issues.apache.org/jira/browse/YARN-2154
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler
> Affects Versions: 2.4.0
> Reporter: Karthik Kambatla
> Assignee: Arun Suresh
> Priority: Critical
> Attachments: YARN-2154.1.patch
>
>
> Today, FairScheduler uses a spray-gun approach to preemption. Instead, it
> should only preempt resources that would satisfy the incoming request.
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