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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6835) Support concatenated gzip and bzip2 files
Date Tue, 29 Jun 2010 03:36:53 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12883400#action_12883400
] 

Hadoop QA commented on HADOOP-6835:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12448272/HADOOP-6835.v4.trunk-hadoop-mapreduce.patch
  against trunk revision 957074.

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

    +1 tests included.  The patch appears to include 21 new or modified tests.

    -1 patch.  The patch command could not apply the patch.

Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h4.grid.sp2.yahoo.net/596/console

This message is automatically generated.

> Support concatenated gzip and bzip2 files
> -----------------------------------------
>
>                 Key: HADOOP-6835
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6835
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>    Affects Versions: 0.20.2
>            Reporter: Tom White
>            Assignee: Greg Roelofs
>             Fix For: 0.22.0
>
>         Attachments: grr-hadoop-common.dif.20100614c, grr-hadoop-mapreduce.dif.20100614c,
HADOOP-6835.v3.yahoo-0.20.2xx-branch.patch, HADOOP-6835.v4.trunk-hadoop-common.patch, HADOOP-6835.v4.trunk-hadoop-mapreduce.patch,
HADOOP-6835.v4.yahoo-0.20.2xx-branch.patch, MR-469.v2.yahoo-0.20.2xx-branch.patch
>
>
> When running MapReduce with concatenated gzip files as input only the first part is read,
which is confusing, to say the least. Concatenated gzip is described in http://www.gnu.org/software/gzip/manual/gzip.html#Advanced-usage
and in http://www.ietf.org/rfc/rfc1952.txt. (See original report at http://www.nabble.com/Problem-with-Hadoop-and-concatenated-gzip-files-to21383097.html)

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