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https://issues.apache.org/jira/browse/YARN-9242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rohith Sharma K S resolved YARN-9242.
-------------------------------------
    Resolution: Done

I have reverted YARN-8270 in branch-3.1 and branch-3.1.2. Also updated Fix 
Version in YARN-8270. 

Closing as Done!

> Revert YARN-8270 from branch-3.1
> --------------------------------
>
>                 Key: YARN-9242
>                 URL: https://issues.apache.org/jira/browse/YARN-9242
>             Project: Hadoop YARN
>          Issue Type: Task
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>            Priority: Blocker
>
> It is observed that in hadoop-3.1-RC0, NodeManager are unable to initialize 
> TimelineCollectorWebService! 
> Primary reason is HADOOP-15657 is not present in hadoop-3.1 branch! 
> Following error is seen NM logs
> {noformat}
> Caused by: org.apache.hadoop.metrics2.MetricsException: Unsupported metric 
> field putEntitiesFailureLatency of type 
> org.apache.hadoop.metrics2.lib.MutableQuantiles
>       at 
> org.apache.hadoop.metrics2.lib.MutableMetricsFactory.newForField(MutableMetricsFactory.java:87)
> {noformat}
> We need to revert YARN-8270 from branch-3.1!



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