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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4226) ConcurrentModificationException in FileSystemCounterGroup
Date Fri, 04 May 2012 22:25:47 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tom White updated MAPREDUCE-4226:
---------------------------------

    Attachment: MAPREDUCE-4226.patch

Here's a unit test to reproduce the problem, and a fix. The fix uses a ConcurrentSkipListMap
like we did in MAPREDUCE-3749/MAPREDUCE-3827.
                
> ConcurrentModificationException in FileSystemCounterGroup
> ---------------------------------------------------------
>
>                 Key: MAPREDUCE-4226
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4226
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.1
>            Reporter: Tom White
>            Assignee: Tom White
>         Attachments: MAPREDUCE-4226.patch
>
>
> This was seen in a Hive job. I'll attach a failing test case.

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