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https://issues.apache.org/jira/browse/MAPREDUCE-5069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13605867#comment-13605867
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Hadoop QA commented on MAPREDUCE-5069:
--------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12574275/MAPREDUCE-5069.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 4 new 
or modified test files.

  {color:red}-1 one of tests included doesn't have a timeout.{color}

    {color:red}-1 javac{color:red}.  The patch appears to cause the build to 
fail.

Console output: 
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3430//console

This message is automatically generated.
                
> add concrete common implementations of CombineFileInputFormat
> -------------------------------------------------------------
>
>                 Key: MAPREDUCE-5069
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5069
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv1, mrv2
>    Affects Versions: 2.0.3-alpha
>            Reporter: Sangjin Lee
>            Priority: Minor
>         Attachments: MAPREDUCE-5069.patch
>
>
> CombineFileInputFormat is abstract, and its specific equivalents to 
> TextInputFormat, SequenceFileInputFormat, etc. are currently not in the 
> hadoop code base.
> These sound like very common need wherever CombineFileInputFormat is used, 
> and different folks would write the same code over and over to achieve the 
> same goal. It sounds very natural for hadoop to provide at least the text and 
> sequence file implementations of the CombineFileInputFormat class.

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