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https://issues.apache.org/jira/browse/YARN-1071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13908179#comment-13908179
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Hudson commented on YARN-1071:
------------------------------
FAILURE: Integrated in Hadoop-Yarn-trunk #488 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/488/])
YARN-1071. Enabled ResourceManager to recover cluster metrics
numDecommissionedNMs after restarting. Contributed by Jian He. (zjshen:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1570469)
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ClusterMetrics.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/NodesListManager.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmnode/RMNodeImpl.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMNodeTransitions.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMRestart.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestResourceTrackerService.java
> 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
> Fix For: 2.4.0
>
> Attachments: YARN-1071.1.patch, YARN-1071.2.patch, YARN-1071.3.patch,
> YARN-1071.4.patch, YARN-1071.5.patch, YARN-1071.6.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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