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From "Robert Parker (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-1101) Active nodes can be decremented below 0
Date Tue, 27 Aug 2013 14:11:52 GMT
Robert Parker created YARN-1101:

             Summary: Active nodes can be decremented below 0
                 Key: YARN-1101
                 URL: https://issues.apache.org/jira/browse/YARN-1101
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
    Affects Versions: 2.0.6-alpha, 0.23.9, 3.0.0
            Reporter: Robert Parker
            Assignee: Robert Parker

The issue is in RMNodeImpl where both RUNNING and UNHEALTHY states that transition to a deactive
state (LOST, DECOMMISSIONED, REBOOTED) use the same DeactivateNodeTransition class.  The DeactivateNodeTransition
class naturally decrements the active node, however the in cases where the node has transition
to UNHEALTHY the active count has already been decremented.

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