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https://issues.apache.org/jira/browse/MAPREDUCE-2749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13096097#comment-13096097
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Thomas Graves commented on MAPREDUCE-2749:
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Findbug warnings were pre-existing to this change.
> [MR-279] NM registers with RM even before it starts various servers
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-2749
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2749
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Thomas Graves
> Fix For: 0.23.0
>
> Attachments: MAPREDUCE-2749-v2.patch, MAPREDUCE-2749.patch
>
>
> In case NM eventually fails to start the ContainerManager server because of
> say a port clash, RM will have to wait for expiry to detect the NM crash.
> It is desirable to make NM register with RM only after it can start all of
> its components successfully.
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