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Posted to dev@crunch.apache.org by "Dave Beech (JIRA)" <ji...@apache.org> on 2013/02/13 17:46:13 UTC

[jira] [Created] (CRUNCH-165) Pipelines should automatically use CombineFileInputFormat where input consists of many small files

Dave Beech created CRUNCH-165:
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             Summary: 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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