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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1981) Improve getSplits performance by using listFiles, the new FileSystem API
Date Tue, 17 Aug 2010 22:13:16 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Douglas updated MAPREDUCE-1981:
-------------------------------------

    Status: Patch Available  (was: Open)

> 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
>
>
> 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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