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https://issues.apache.org/jira/browse/MAPREDUCE-1981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hairong Kuang updated MAPREDUCE-1981:
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Attachment: mapredListFiles1.patch
mapredListFiles1.patch uses the new listFiles API in FileContext. Comparing to
the first patch, this one maintains not only the syntax but also the semantics
of FileInputFormat#listStatus
> 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
>
>
> 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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