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From "Carlo Curino (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-568) FairScheduler: support for work-preserving preemption
Date Thu, 11 Apr 2013 13:49:16 GMT

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

Carlo Curino updated YARN-568:
------------------------------

    Attachment: fair.patch
    
> FairScheduler: support for work-preserving preemption 
> ------------------------------------------------------
>
>                 Key: YARN-568
>                 URL: https://issues.apache.org/jira/browse/YARN-568
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: scheduler
>            Reporter: Carlo Curino
>         Attachments: fair.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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