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https://issues.apache.org/jira/browse/CRUNCH-165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13602834#comment-13602834
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Josh Wills commented on CRUNCH-165:
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That's definitely a good place to start.
> 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
>
> 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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