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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5221) Reduce side Combiner is not used when using the new API
Date Sat, 04 Jul 2015 09:20:05 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14613623#comment-14613623
] 

Hadoop QA commented on MAPREDUCE-5221:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  16m 35s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to include 4 new
or modified test files. |
| {color:red}-1{color} | javac |   4m  7s | The patch appears to cause the build to fail.
|
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12666386/MAPREDUCE-5221.10.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 2eae130 |
| Console output | https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5867/console |


This message was automatically generated.

> Reduce side Combiner is not used when using the new API
> -------------------------------------------------------
>
>                 Key: MAPREDUCE-5221
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5221
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.0.4-alpha
>            Reporter: Siddharth Seth
>            Assignee: Tsuyoshi Ozawa
>              Labels: BB2015-05-TBR
>         Attachments: MAPREDUCE-5221.1.patch, MAPREDUCE-5221.10.patch, MAPREDUCE-5221.2.patch,
MAPREDUCE-5221.3.patch, MAPREDUCE-5221.4.patch, MAPREDUCE-5221.5.patch, MAPREDUCE-5221.6.patch,
MAPREDUCE-5221.7-2.patch, MAPREDUCE-5221.7.patch, MAPREDUCE-5221.8.patch, MAPREDUCE-5221.9.patch
>
>
> If a combiner is specified using o.a.h.mapreduce.Job.setCombinerClass - this will silently
ignored on the reduce side since the reduce side usage is only aware of the old api combiner.
> This doesn't fail the job - since the new combiner key does not deprecate the old key.



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