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https://issues.apache.org/jira/browse/MAPREDUCE-7469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17808072#comment-17808072
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ASF GitHub Bot commented on MAPREDUCE-7469:
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LiuGuH opened a new pull request, #6463:
URL: https://github.com/apache/hadoop/pull/6463
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### Description of PR
JIRA: [MAPREDUCE-7469](https://issues.apache.org/jira/browse/MAPREDUCE-7469)
NNBench createControlFiles should use thread pool to improve performance.
### How was this patch tested?
Add test case for this.
> NNBench createControlFiles should use thread pool to improve performance.
> -------------------------------------------------------------------------
>
> Key: MAPREDUCE-7469
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7469
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: liuguanghua
> Priority: Minor
>
> NNBench is a good tool for NN performance test. And with multiples maps it
> will wait long time in createControlFiles. This can use thread pool to
> increase concurrency.
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