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https://issues.apache.org/jira/browse/HADOOP-4640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650119#action_12650119
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Hadoop QA commented on HADOOP-4640:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12394241/HADOOP-4640.patch
  against trunk revision 719787.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac 
compiler warnings.

    -1 findbugs.  The patch appears to introduce 1 new Findbugs warnings.

    +1 Eclipse classpath. The patch retains Eclipse classpath integrity.

    -1 core tests.  The patch failed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: 
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3642/testReport/
Findbugs warnings: 
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3642/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: 
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3642/artifact/trunk/build/test/checkstyle-errors.html
Console output: 
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3642/console

This message is automatically generated.

> Add ability to split text files compressed with lzo
> ---------------------------------------------------
>
>                 Key: HADOOP-4640
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4640
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: io, mapred
>            Reporter: Johan Oskarsson
>            Assignee: Johan Oskarsson
>            Priority: Trivial
>             Fix For: 0.20.0
>
>         Attachments: HADOOP-4640.patch, HADOOP-4640.patch, HADOOP-4640.patch, 
> HADOOP-4640.patch
>
>
> Right now any file compressed with lzop will be processed by one mapper. This 
> is a shame since the lzo algorithm would be very suitable for large log files 
> and similar common hadoop data sets. The compression rate is not the best out 
> there but the decompression speed is amazing.  Since lzo writes compressed 
> data in blocks it would be possible to make an input format that can split 
> the files.

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