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  1. Hive
  2. HIVE-6347

ZeroCopy read path for ORC RecordReader

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: tez-branch
    • Fix Version/s: tez-branch
    • Component/s: File Formats
    • Labels:
      None
    • Release Note:
      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-6347.5-tez.patch
          24 kB
          Gopal V
        2. HIVE-6347.4-tez.patch
          26 kB
          Gopal V
        3. HIVE-6347.3-tez.patch
          27 kB
          Gopal V
        4. HIVE-6347.2-tez.patch
          27 kB
          Gopal V
        5. HIVE-6347.1.patch
          26 kB
          Gopal V

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              • Assignee:
                gopalv Gopal V
                Reporter:
                gopalv Gopal V
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                Dates

                • Created:
                  Updated:
                  Resolved: