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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1071) ResourceManager's decommissioned and lost node count is 0 after restart
Date Thu, 20 Feb 2014 23:39:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-1071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13907707#comment-13907707
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Jian He commented on YARN-1071:
-------------------------------

bq. NodesListManager#disableHostsFileReader?
Right, updated the metrics inside this method as well.

> ResourceManager's decommissioned and lost node count is 0 after restart
> -----------------------------------------------------------------------
>
>                 Key: YARN-1071
>                 URL: https://issues.apache.org/jira/browse/YARN-1071
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Srimanth Gunturi
>            Assignee: Jian He
>         Attachments: YARN-1071.1.patch, YARN-1071.2.patch, YARN-1071.3.patch, YARN-1071.4.patch,
YARN-1071.5.patch
>
>
> I had 6 nodes in a cluster with 2 NMs stopped. Then I put a host into YARN's {{yarn.resourcemanager.nodes.exclude-path}}.
After running {{yarn rmadmin -refreshNodes}}, RM's JMX correctly showed decommissioned node
count:
> {noformat}
> "NumActiveNMs" : 3,
> "NumDecommissionedNMs" : 1,
> "NumLostNMs" : 2,
> "NumUnhealthyNMs" : 0,
> "NumRebootedNMs" : 0
> {noformat}
> After restarting RM, the counts were shown as below in JMX.
> {noformat}
> "NumActiveNMs" : 3,
> "NumDecommissionedNMs" : 0,
> "NumLostNMs" : 0,
> "NumUnhealthyNMs" : 0,
> "NumRebootedNMs" : 0
> {noformat}
> Notice that the lost and decommissioned NM counts are both 0.



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