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https://issues.apache.org/jira/browse/MAPREDUCE-5517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14055017#comment-14055017
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Hudson commented on MAPREDUCE-5517:
-----------------------------------
SUCCESS: Integrated in Hadoop-Mapreduce-trunk #1825 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1825/])
MAPREDUCE-5517. Fixed MapReduce ApplicationMaster to not validate reduce side
resource configuration for deciding uber-mode on map-only jobs. Contributed by
Siqi Li. (vinodkv:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1608595)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/JobImpl.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestJobImpl.java
> enabling uber mode with 0 reducer still requires mapreduce.reduce.memory.mb
> to be less than yarn.app.mapreduce.am.resource.mb
> -----------------------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5517
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5517
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.0.5-alpha
> Reporter: Siqi Li
> Assignee: Siqi Li
> Priority: Minor
> Fix For: 2.5.0
>
> Attachments: MAPREDUCE_5517_v3.patch.txt,
> MAPREDUCE_5517_v4.patch.txt, MAPREDUCE_5517_v5.patch, MAPREDUCE_5517_v6.patch
>
>
> Since there is no reducer, the memory allocated to reducer is irrelevant to
> enable uber mode of a job
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