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  1. Spark
  2. SPARK-7448

Implement custom bye array serializer for use in PySpark shuffle

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Details

    • Improvement
    • Status: Closed
    • Minor
    • Resolution: Later
    • None
    • None
    • PySpark, Shuffle, Spark Core
    • None

    Description

      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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          relates to

          Sub-task - The sub-task of the issue SPARK-3132 Avoid serialization for Array[Byte] in TorrentBroadcast

          • Major - Major loss of function.
          • Closed

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              Unassigned Unassigned
              joshrosen Josh Rosen
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                Created:
                Updated:
                Resolved: