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https://issues.apache.org/jira/browse/CRUNCH-165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13831196#comment-13831196
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Chao Shi commented on CRUNCH-165:
---------------------------------

Good idea. CRUNCH-165 is opened.

> Pipelines should automatically use CombineFileInputFormat where input 
> consists of many small files
> --------------------------------------------------------------------------------------------------
>
>                 Key: CRUNCH-165
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-165
>             Project: Crunch
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.4.0
>            Reporter: Dave Beech
>            Assignee: Josh Wills
>             Fix For: 0.8.0
>
>         Attachments: CRUNCH-165-jwills.patch, CRUNCH-165-v3.patch, 
> CRUNCH-165-v4.patch, CRUNCH-165.patch
>
>
> Hive had a feature introduced in HIVE-74 whereby CombineFileInputFormat would 
> be used if the input data consisted of many small files, making the resulting 
> mapreduce jobs more efficient by giving individual mappers more data to 
> process. This would be a nice feature for Crunch to have, too.



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