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Posted to mapreduce-issues@hadoop.apache.org by "Sandy Ryza (JIRA)" <ji...@apache.org> on 2013/03/06 06:22:12 UTC

[jira] [Updated] (MAPREDUCE-5049) CombineFileInputFormat counts all compressed files non-splitable

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sandy Ryza updated MAPREDUCE-5049:
----------------------------------

    Attachment: MAPREDUCE-5049.patch
    
> CombineFileInputFormat counts all compressed files non-splitable
> ----------------------------------------------------------------
>
>                 Key: MAPREDUCE-5049
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5049
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 1.1.1
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: MAPREDUCE-5049.patch
>
>
> In branch-1, CombineFileInputFormat doesn't take SplittableCompressionCodec into account and thinks that all compressible input files aren't splittable.  This is a regression from when handling for non-splitable compression codecs was originally added in MAPREDUCE-1597, and seems to have somehow gotten in when the code was pulled from 0.22 to branch-1.

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