[jira] [Created] (SPARK-12635) More efficient (column batch) serialization for Python/R

["Reynold Xin (JIRA)" <ji...@apache.org>]

Reynold Xin created SPARK-12635:
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             Summary: More efficient (column batch) serialization for Python/R
                 Key: SPARK-12635
                 URL: https://issues.apache.org/jira/browse/SPARK-12635
             Project: Spark
          Issue Type: New Feature
          Components: PySpark, SparkR, SQL
            Reporter: Reynold Xin


Serialization between Scala / Python / R is pretty slow. Python and R both work pretty well with column batch interface (e.g. numpy arrays). Technically we should be able to just pass column batches around with minimal serialization (maybe even zero copy memory).

Note that this depends on some internal refactoring to use a column batch interface in Spark SQL.



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