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  1. Spark
  2. SPARK-9565 Spark SQL 1.5.0 QA/testing umbrella
  3. SPARK-9699

Test whether we should turn compression on or off by default for external sorting

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • None
    • SQL
    • None
    • Spark 1.5 doc/QA sprint

    Description

      As of Spark 1.4, compression is on by default for spilling, trading off CPU cycles for less I/O throughput usage. It is unclear whether it is better to have compression on or off when we spill data. We should test that and adjust the default setting accordingly.

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            rxin Reynold Xin
            rxin Reynold Xin
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              Created:
              Updated:
              Resolved:

              Agile

                Active Sprint:
                Spark 1.5 doc/QA sprint ends 28/Aug/15
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