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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1101) Active nodes can be decremented below 0
Date Wed, 03 Sep 2014 23:30:52 GMT

     [ https://issues.apache.org/jira/browse/YARN-1101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated YARN-1101:
-----------------------------------
    Fix Version/s:     (was: 2.3.0)
                       (was: 3.0.0)

> 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: 3.0.0, 0.23.9, 2.0.6-alpha
>            Reporter: Robert Parker
>            Assignee: Robert Parker
>             Fix For: 0.23.10, 2.1.1-beta
>
>         Attachments: YARN-1101_b0.23_v1.patch, YARN-1101_v1.patch
>
>
> 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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