[jira] [Created] (SPARK-2684) Update ExternalAppendOnlyMap to take an iterator as input

[Matei Zaharia (JIRA)]

Matei Zaharia created SPARK-2684:
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             Summary: Update ExternalAppendOnlyMap to take an iterator as input
                 Key: SPARK-2684
                 URL: https://issues.apache.org/jira/browse/SPARK-2684
             Project: Spark
          Issue Type: Sub-task
          Components: Spark Core
            Reporter: Matei Zaharia
            Priority: Minor


This will decrease object allocation from things like closures.



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