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https://issues.apache.org/jira/browse/HADOOP-4565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12857586#action_12857586
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Gaurav Jain commented on HADOOP-4565:
-------------------------------------


Did you happen to hit the following issue after this jiras changes?

https://issues.apache.org/jira/browse/HDFS-347

Looks like I am hitting this issue. I am running some more benchmarks to trace 
down the details.

> MultiFileInputSplit can use data locality information to create splits
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-4565
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4565
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>             Fix For: 0.20.0
>
>         Attachments: CombineMultiFile.patch, CombineMultiFile2.patch, 
> CombineMultiFile3.patch, CombineMultiFile4.patch, CombineMultiFile5.patch, 
> CombineMultiFile7.patch, CombineMultiFile8.patch, CombineMultiFile9.patch, 
> TestCombine.txt
>
>
> The MultiFileInputFormat takes a set of paths and creates splits based on 
> file sizes. Each splits contains a few files an each split are roughly equal 
> in size. It would be efficient if we can extend this InputFormat to create 
> splits such each all the blocks in one split and either node-local or 
> rack-local.

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