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https://issues.apache.org/jira/browse/MAPREDUCE-2844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13100167#comment-13100167
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Ravi Teja Ch N V commented on MAPREDUCE-2844:
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Earlier, before the major refactoring, the nodeID was provided by the
resourcetracker at ResourceManager by a nodecounter,which was 0,1 and
incremented so on as nodes got added. Presently, it is replaced by host:port
pair. I think its fine displaying the host:pair as nodeID.
> [MR-279] Incorrect node ID info
> --------------------------------
>
> Key: MAPREDUCE-2844
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2844
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Ramya Sunil
> Fix For: 0.23.0
>
>
> The node ID info for the nodemanager entires on the RM UI incorrectly
> displays the value of $yarn.server.nodemanager.address instead of the ID.
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