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https://issues.apache.org/jira/browse/MAPREDUCE-2986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13119500#comment-13119500
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Anupam Seth commented on MAPREDUCE-2986:
----------------------------------------
I was able to reproduce the hanging test and was investigating through the root
cause. But, after doing a svn update this morning, all tests pass and there is
no longer a hang. I am re-attaching the patch. Looks like someone else checked
in a fix for something that was hitting the same bug that my patch was hitting.
I have not yet analyzed exactly which change hit the nail.
> Multiple node managers support for the MiniYARNCluster
> ------------------------------------------------------
>
> Key: MAPREDUCE-2986
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2986
> Project: Hadoop Map/Reduce
> Issue Type: Task
> Components: mrv2, test
> Affects Versions: 0.23.0
> Reporter: Anupam Seth
> Assignee: Anupam Seth
> Priority: Critical
> Fix For: 0.23.0
>
> Attachments: BZ-4805926-branch-0_23.patch,
> MAPREDUCE-2986-branch-0_23.patch, MAPREDUCE-2986-branch-0_23.patch,
> MAPREDUCE-2986-branch-0_23.patch, MAPREDUCE-2986-branch-0_23.patch,
> MAPREDUCE-2986-branch-0_23.patch, MAPREDUCE-2986-branch-0_23.patch,
> MAPREDUCE-2986-branch-0_23.patch, MAPREDUCE-2986-branch-0_23.patch
>
>
> The current MiniYARNCluster can only support 1 node manager, which is not
> enough for the full test purposes.
> Would like to have a simulator that can support multiple node managers as the
> real scenario. This might be beneficial for hadoop users, testers and
> developers.
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