hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2410) document multiple keys per reducer oddity in hadoop streaming FAQ
Date Wed, 11 May 2011 18:55:47 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13031952#comment-13031952
] 

Hadoop QA commented on MAPREDUCE-2410:
--------------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12478845/MAPREDUCE-2410.r3.diff
  against trunk revision 1101741.

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

    +0 tests included.  The patch appears to be a documentation patch that doesn't require
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 does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

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

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

    +1 system test framework.  The patch passed system test framework compile.

Test results: https://builds.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/232//testReport/
Findbugs warnings: https://builds.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/232//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/232//console

This message is automatically generated.

> document multiple keys per reducer oddity in hadoop streaming FAQ
> -----------------------------------------------------------------
>
>                 Key: MAPREDUCE-2410
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2410
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/streaming, documentation
>    Affects Versions: 0.20.2
>            Reporter: Dieter Plaetinck
>            Assignee: Harsh J Chouraria
>            Priority: Minor
>              Labels: newbie
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2410.r1.diff, MAPREDUCE-2410.r2.diff, MAPREDUCE-2410.r3.diff
>
>   Original Estimate: 40m
>  Remaining Estimate: 40m
>
> Hi,
> for a newcomer to hadoop streaming, it comes as a surprise that the reducer receives
arbitrary keys, unlike the "real" hadoop where a reducer works on a single key.
> An explanation for this is @ http://mail-archives.apache.org/mod_mbox/hadoop-common-user/201103.mbox/browser
> I suggest to add this to the FAQ of hadoop streaming

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message