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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2187) FairScheduler: Disable max-AM-share check by default
Date Fri, 20 Jun 2014 22:36:26 GMT

     [ https://issues.apache.org/jira/browse/YARN-2187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla updated YARN-2187:
-----------------------------------

    Summary: FairScheduler: Disable max-AM-share check by default  (was: FairScheduler should
have a way of disabling the max AM share check for launching new AMs)

> FairScheduler: Disable max-AM-share check by default
> ----------------------------------------------------
>
>                 Key: YARN-2187
>                 URL: https://issues.apache.org/jira/browse/YARN-2187
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>    Affects Versions: 2.5.0
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>
> Say you have a small cluster with 8gb memory and 5 queues.  This means that equal queue
can have 8gb / 5 = 1.6gb but an AM requires 2gb to start so no AMs can be started.  We should
have a way of disabling this check to prevent this problem.



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