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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-336) Fair scheduler FIFO scheduling within a queue only allows 1 app at a time
Date Mon, 14 Jan 2013 18:44:12 GMT

     [ https://issues.apache.org/jira/browse/YARN-336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sandy Ryza updated YARN-336:
----------------------------

    Attachment: YARN-336.patch
    
> Fair scheduler FIFO scheduling within a queue only allows 1 app at a time 
> --------------------------------------------------------------------------
>
>                 Key: YARN-336
>                 URL: https://issues.apache.org/jira/browse/YARN-336
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: scheduler
>    Affects Versions: 2.0.2-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: YARN-336.patch
>
>
> The fair scheduler allows apps to be scheduled in FIFO fashion within a queue.  Currently,
when this setting is turned on, the scheduler only allows one app to run at a time.  While
apps submitted earlier should get first priority for allocations, when there is space remaining,
other apps should have a change to get at them.

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