[jira] [Created] (SPARK-7448) Implement custom bye array serializer for use in PySpark shuffle

["Josh Rosen (JIRA)" <ji...@apache.org>]

Josh Rosen created SPARK-7448:
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             Summary: Implement custom bye array serializer for use in PySpark shuffle
                 Key: SPARK-7448
                 URL: https://issues.apache.org/jira/browse/SPARK-7448
             Project: Spark
          Issue Type: Improvement
          Components: PySpark, Shuffle
            Reporter: Josh Rosen


PySpark's shuffle typically shuffles Java RDDs that contain byte arrays. We should implement a custom Serializer for use in these shuffles.  This will allow us to take advantage of shuffle optimizations like SPARK-7311 for PySpark without requiring users to change the default serializer to KryoSerializer (this is useful for JobServer-type applications).



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