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Posted to issues@spark.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2016/04/29 16:45:13 UTC

[jira] [Created] (SPARK-15003) Use ConcurrentHashMap in place of HashMap for NewAccumulator.originals

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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