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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-336) Fair scheduler FIFO scheduling within a queue only allows 1 app at a time
Date Fri, 11 Jan 2013 20:14:15 GMT
Sandy Ryza created YARN-336:
-------------------------------

             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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