Ted Yu created SPARK-15003:
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Summary: Use ConcurrentHashMap in place of HashMap for
NewAccumulator.originals
Key: SPARK-15003
URL: https://issues.apache.org/jira/browse/SPARK-15003
Project: Spark
Issue Type: Improvement
Components: Spark Core
Reporter: Ted Yu
This issue proposes to use ConcurrentHashMap in place of HashMap for
NewAccumulator.originals
This should result in better performance.
Also removed AccumulatorContext#accumIds
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