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https://issues.apache.org/jira/browse/MAPREDUCE-3749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13197803#comment-13197803
]
Hudson commented on MAPREDUCE-3749:
-----------------------------------
Integrated in Hadoop-Hdfs-0.23-Build #156 (See
[https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/156/])
Merge -r 1238733:1238734 from trunk to branch-0.23. Fixes: MAPREDUCE-3749
tomwhite :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1238735
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-core/src/main/java/org/apache/hadoop/mapreduce/counters/AbstractCounterGroup.java
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/counters/AbstractCounters.java
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/TestCounters.java
> ConcurrentModificationException in counter groups
> -------------------------------------------------
>
> Key: MAPREDUCE-3749
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3749
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Tom White
> Assignee: Tom White
> Priority: Blocker
> Fix For: 0.23.1
>
> Attachments: MAPREDUCE-3749-concurrent.patch,
> MAPREDUCE-3749-test.patch, MAPREDUCE-3749.patch, MAPREDUCE-3749.patch
>
>
> Iterating over a counter's groups while adding more groups will cause a
> ConcurrentModificationException.
> This was found while running Hive unit tests against a recent 0.23 version.
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