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From "Aaron Davidson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-3994) countByKey / countByValue do not go through Aggregator
Date Fri, 17 Oct 2014 21:50:34 GMT
Aaron Davidson created SPARK-3994:
-------------------------------------

             Summary: countByKey / countByValue do not go through Aggregator
                 Key: SPARK-3994
                 URL: https://issues.apache.org/jira/browse/SPARK-3994
             Project: Spark
          Issue Type: Bug
            Reporter: Aaron Davidson


The implementations of these methods are historical remnants of Spark from a time when the
shuffle may have been nonexistent. Now, they can be simplified by plugging into reduceByKey(),
potentially seeing performance and stability improvements.



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