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Date: Tue, 7 May 2013 20:57:17 +0000 (UTC)
From: "Chris Douglas (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12642032.1365687783261.283550.1367960237893@arcas>
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References: <JIRA.12642032.1365687783261@arcas>
Subject: [jira] [Updated] (YARN-568) FairScheduler: support for
 work-preserving preemption
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     [ https://issues.apache.org/jira/browse/YARN-568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Douglas updated YARN-568:
-------------------------------

    Attachment: YARN-568-1.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.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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