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https://issues.apache.org/jira/browse/MAPREDUCE-1981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12973928#action_12973928
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Hairong Kuang commented on MAPREDUCE-1981:
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Created HDFS-1550 to fix the NPE bug.
> 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
> Fix For: 0.22.0
>
> Attachments: mapredListFiles.patch, mapredListFiles1.patch,
> mapredListFiles2.patch, mapredListFiles3.patch, mapredListFiles4.patch,
> mapredListFiles5.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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