You are viewing a plain text version of this content. The canonical link for it is here.

Posted to mapreduce-issues@hadoop.apache.org by "Hairong Kuang (JIRA)" <ji...@apache.org> on 2010/08/03 01:01:17 UTC

[jira] Updated: (MAPREDUCE-1981) Improve getSplits performance by using listFiles, the new FileSystem API

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

Hairong Kuang updated MAPREDUCE-1981:
-------------------------------------

    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.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.