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https://issues.apache.org/jira/browse/YARN-568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sandy Ryza updated YARN-568:
----------------------------

    Attachment: YARN-568-2.patch
    
> FairScheduler: support for work-preserving preemption 
> ------------------------------------------------------
>
>                 Key: YARN-568
>                 URL: https://issues.apache.org/jira/browse/YARN-568
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: scheduler
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-568-1.patch, YARN-568-2.patch, YARN-568-2.patch, 
> YARN-568.patch, YARN-568.patch
>
>
> In the attached patch, we modified  the FairScheduler to substitute its 
> preemption-by-killling with a work-preserving version of preemption (followed 
> by killing if the AMs do not respond quickly enough). This should allows to 
> run preemption checking more often, but kill less often (proper tuning to be 
> investigated).  Depends on YARN-567 and YARN-45, is related to YARN-569.

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