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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