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https://issues.apache.org/jira/browse/YARN-2523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14147540#comment-14147540
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Rohith commented on YARN-2523:
------------------------------

bq. Not related to this jira, just to improve the previous 
testDecomissionedNMsMetricsOnRMRestart
Done. Instead of decrementing 2 times, I stopped rm1 before rm2 start.It 
destroy ClusterMetrics.

I updated the patch for the same, please review..

> ResourceManager UI showing negative value for "Decommissioned Nodes" field
> --------------------------------------------------------------------------
>
>                 Key: YARN-2523
>                 URL: https://issues.apache.org/jira/browse/YARN-2523
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, webapp
>    Affects Versions: 3.0.0
>            Reporter: Nishan Shetty
>            Assignee: Rohith
>         Attachments: YARN-2523.1.patch, YARN-2523.2.patch, YARN-2523.patch, 
> YARN-2523.patch
>
>
> 1. Decommission one NodeManager by configuring ip in excludehost file
> 2. Remove ip from excludehost file
> 3. Execute -refreshNodes command and restart Decommissioned NodeManager
> Observe that in RM UI negative value for "Decommissioned Nodes" field is shown



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