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https://issues.apache.org/jira/browse/MAPREDUCE-1981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13565366#comment-13565366
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shenhong commented on MAPREDUCE-1981:
-------------------------------------
we hope this patch will check into trunk.
> Improve getSplits performance by using listFiles, the new FileSystem API
> ------------------------------------------------------------------------
>
> Key: MAPREDUCE-1981
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1981
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: job submission
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Attachments: mapredListFiles1.patch, mapredListFiles2.patch,
> mapredListFiles3.patch, mapredListFiles4.patch, mapredListFiles5.patch,
> mapredListFiles.patch
>
>
> This jira will make FileInputFormat and CombinedFileInputForm to use the new
> API, thus reducing the number of RPCs to HDFS NameNode.
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