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https://issues.apache.org/jira/browse/YARN-2187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Kanter updated YARN-2187:
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Attachment: YARN-2187.patch
> 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
> Attachments: YARN-2187.patch
>
>
> 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. By default, max-am-share check should be disabled so
> users don't see a regression. On medium-sized clusters, it still makes sense
> to set the max-am-share to a value between 0 and 1.
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