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https://issues.apache.org/jira/browse/MAPREDUCE-5906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14098646#comment-14098646
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Hudson commented on MAPREDUCE-5906:
-----------------------------------
FAILURE: Integrated in Hadoop-Hdfs-trunk #1838 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1838/])
MAPREDUCE-5906. Inconsistent configuration in property
"mapreduce.reduce.shuffle.input.buffer.percent" (Akira AJISAKA via aw) (aw:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1618007)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/MRJobConfig.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/task/reduce/MergeManagerImpl.java
> Inconsistent configuration in property
> "mapreduce.reduce.shuffle.input.buffer.percent"
> --------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5906
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5906
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 2.4.0
> Reporter: Akira AJISAKA
> Assignee: Akira AJISAKA
> Priority: Minor
> Labels: newbie
> Fix For: 3.0.0, 2.6.0
>
> Attachments: MAPREDUCE-5906.patch
>
>
> In MergeManagerImpl.java, the default value of
> MRJobConfig.SHUFFLE_INPUT_BUFFER_PERCENT
> (=mapreduce.reduce.shuffle.input.buffer.percent) looks 0.90.
> {code}
> final float maxInMemCopyUse =
> jobConf.getFloat(MRJobConfig.SHUFFLE_INPUT_BUFFER_PERCENT, 0.90f);
> {code}
> However, the actual default value is 0.70 in mapred-default.xml.
> {code}
> <name>mapreduce.reduce.shuffle.input.buffer.percent</name>
> <value>0.70</value>
> {code}
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