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https://issues.apache.org/jira/browse/MAPREDUCE-3834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13203155#comment-13203155
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Hudson commented on MAPREDUCE-3834:
-----------------------------------
Integrated in Hadoop-Common-0.23-Commit #517 (See
[https://builds.apache.org/job/Hadoop-Common-0.23-Commit/517/])
MAPREDUCE-3834. Changed MR AM to not add the same rack entry multiple times
into the container request table when multiple hosts for a split happen to be
on the same rack. Contributed by Siddarth Seth.
svn merge --ignore-ancestry -c 1241734 ../../trunk/
vinodkv :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1241735
Files :
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestTaskAttempt.java
> If multiple hosts for a split belong to the same rack, the rack is added
> multiple times in the AM request table
> ---------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3834
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3834
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mr-am, mrv2
> Affects Versions: 0.23.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Priority: Critical
> Fix For: 0.23.1
>
> Attachments: MR3834.txt, MR3834.txt
>
>
> Should be added only once - so that the RM doesn't think there's multiple
> rack local requests for that particular rack.
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