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https://issues.apache.org/jira/browse/MAPREDUCE-7462?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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farmmamba resolved MAPREDUCE-7462.
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Resolution: Invalid
> Use thread pool to improve the speed of creating control files in TestDFSIO
> ---------------------------------------------------------------------------
>
> Key: MAPREDUCE-7462
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7462
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: examples, test
> Affects Versions: 3.3.6
> Reporter: farmmamba
> Priority: Major
>
> When we use TestDFSIO tool to test the throughouts of HDFS clusters, we found
> it is so slow in the creating controll files stage.
> After refering to the source code, we found that method createControlFile try
> to create control files serially. It can be improved by using thread pool.
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