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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6269) Missing synchronization for defaultResources in Configuration.addResource
Date Sat, 21 Nov 2009 04:23:40 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Douglas updated HADOOP-6269:
----------------------------------

    Attachment: HADOOP-6269-2v20.patch

> 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: Todd Lipcon
>             Fix For: 0.20.2, 0.21.0
>
>         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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