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Posted to mapreduce-dev@hadoop.apache.org by "Tom White (Created) (JIRA)" <ji...@apache.org> on 2012/01/28 02:31:04 UTC

[jira] [Created] (MAPREDUCE-3749) ConcurrentModificationException in counter groups

ConcurrentModificationException in counter groups
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                 Key: MAPREDUCE-3749
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3749
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 0.23.0
            Reporter: Tom White
            Priority: Blocker


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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