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Posted to yarn-dev@hadoop.apache.org by "Sandy Ryza (JIRA)" <ji...@apache.org> on 2013/01/11 21:14:15 UTC

[jira] [Created] (YARN-336) Fair scheduler FIFO scheduling within a queue only allows 1 app at a time

Sandy Ryza created YARN-336:
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             Summary: 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


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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