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From "Jun Gong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-3057) Need update apps' runnability when reloading allocation files for FairScheduler
Date Tue, 13 Jan 2015 10:51:34 GMT
Jun Gong created YARN-3057:
------------------------------

             Summary: Need update apps' runnability when reloading allocation files for FairScheduler
                 Key: YARN-3057
                 URL: https://issues.apache.org/jira/browse/YARN-3057
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
            Reporter: Jun Gong
            Assignee: Jun Gong


If we submit a app and the number of running app in its corresponding leaf queue has reached
its max limit, the app will be put into 'nonRunnableApps'. And its runnabiltiy will only be
updated when removing a appattempt(FairScheduler will call `updateRunnabilityOnAppRemoval`
at that time).

Suppose there are only service apps running, they will not finish, so the submitted app will
not be scheduled even we change leaf queue's max limit. I think we need update apps' runnability
when reloading allocation files for FairScheduler.



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