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From "Robert Kanter (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4408) NodeManager still reports negative running containers
Date Wed, 02 Dec 2015 00:13:10 GMT
Robert Kanter created YARN-4408:

             Summary: NodeManager still reports negative running containers
                 Key: YARN-4408
                 URL: https://issues.apache.org/jira/browse/YARN-4408
             Project: Hadoop YARN
          Issue Type: Bug
          Components: nodemanager
    Affects Versions: 2.4.0
            Reporter: Robert Kanter
            Assignee: Robert Kanter

YARN-1697 fixed a problem where the NodeManager metrics could report a negative number of
running containers.  However, it missed a rare case where this can still happen.

YARN-1697 added a flag to indicate if the container was actually launched ({{LOCALIZED}} to
{{RUNNING}}) or not ({{LOCALIZED}} to {{KILLING}}), which is then checked when transitioning
to only decrement the gauge if we actually ran the container and incremented the gauge . 
However, this flag is not checked while transitioning from {{EXITED_WITH_SUCCESS}} to {{DONE}}.

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