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  1. Hive
  2. HIVE-6347

ZeroCopy read path for ORC RecordReader

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • tez-branch
    • tez-branch
    • File Formats
    • None
    • ZeroCopy readers for the ORC file format

    Description

      ORC can use the new HDFS Caching APIs and the ZeroCopy readers to avoid extra data copies into memory while scanning files.

      Implement ORC zcr codepath and a hive.orc.zerocopy flag.

      Attachments

        1. HIVE-6347.1.patch
          26 kB
          Gopal Vijayaraghavan
        2. HIVE-6347.2-tez.patch
          27 kB
          Gopal Vijayaraghavan
        3. HIVE-6347.3-tez.patch
          27 kB
          Gopal Vijayaraghavan
        4. HIVE-6347.4-tez.patch
          26 kB
          Gopal Vijayaraghavan
        5. HIVE-6347.5-tez.patch
          24 kB
          Gopal Vijayaraghavan

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            gopalv Gopal Vijayaraghavan Assign to me
            gopalv Gopal Vijayaraghavan
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            Dates

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              Updated:
              Resolved:

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