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  1. Spark
  2. SPARK-37649

Switch default index to distributed-sequence by default in pandas API on Spark

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Details

    • Improvement
    • Status: Resolved
    • Critical
    • Resolution: Fixed
    • 3.3.0
    • 3.3.0
    • PySpark

    Description

      pandas API on Spark currently sets compute.default_index_type to sequence which relies on sending all data to one executor that easily causes OOM.

      We should better switch to distributed-sequence type that truly distributes the data.

      With this change, we can now leverage https://issues.apache.org/jira/browse/SPARK-36559 and https://issues.apache.org/jira/browse/SPARK-36338 by default, and end users will benefit a lot of performance improvement.

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            gurwls223 Hyukjin Kwon
            gurwls223 Hyukjin Kwon
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