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https://issues.apache.org/jira/browse/MAPREDUCE-3827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13203077#comment-13203077
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Hudson commented on MAPREDUCE-3827:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk-Commit #1698 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/1698/])
MAPREDUCE-3827. Changed Counters to use ConcurrentSkipListMap for
performance. Contributed by Vinod K V.
acmurthy :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1241711
Files :
* /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/counters/AbstractCounterGroup.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/counters/AbstractCounters.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/counters/Limits.java
> Counters aggregation slowed down significantly after MAPREDUCE-3749
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-3827
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3827
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mrv2, performance
> Affects Versions: 0.23.0
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Vinod Kumar Vavilapalli
> Priority: Blocker
> Fix For: 0.23.1
>
> Attachments: MAPREDUCE-3827-20120207.txt, MAPREDUCE-3827-20120207.txt
>
>
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