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https://issues.apache.org/jira/browse/HADOOP-6269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12780949#action_12780949
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Hudson commented on HADOOP-6269:
--------------------------------
Integrated in Hadoop-Common-trunk #165 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-Common-trunk/165/])
. Fix threading issue with defaultResource in Configuration.
Contributed by Sreekanth Ramakrishnan
> Missing synchronization for defaultResources in Configuration.addResource
> -------------------------------------------------------------------------
>
> Key: HADOOP-6269
> URL: https://issues.apache.org/jira/browse/HADOOP-6269
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Affects Versions: 0.20.1
> Reporter: Todd Lipcon
> Assignee: Sreekanth Ramakrishnan
> Fix For: 0.20.2
>
> Attachments: HADOOP-6269-1.patch, HADOOP-6269-2.patch,
> HADOOP-6269-2v20.patch, hadoop-6269.txt, hadoop-6269.txt
>
>
> Configuration.defaultResources is a simple ArrayList. In two places in
> Configuration it is accessed without appropriate synchronization, which we've
> seen to occasionally result in ConcurrentModificationExceptions.
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