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  1. Hive
  2. HIVE-5091

ORC files should have an option to pad stripes to the HDFS block boundaries

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.12.0
    • Component/s: File Formats
    • Labels:
      None

      Description

      With ORC stripes being large, if a stripe straddles an HDFS block, the locality of read is suboptimal. It would be good to add padding to ensure that stripes don't straddle HDFS blocks.

        Attachments

        1. HIVE-5091.D12249.3.patch
          63 kB
          Phabricator
        2. HIVE-5091.D12249.2.patch
          60 kB
          Phabricator
        3. HIVE-5091.D12249.1.patch
          60 kB
          Phabricator

          Issue Links

          contains

          Bug - A problem which impairs or prevents the functions of the product. HIVE-5024 Ensure that the requested blocksize for ORC files is a multiple of 512 bytes.

          • Major - Major loss of function.
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-6326 Split generation in ORC may generate wrong split boundaries because of unaccounted padded bytes

          • Major - Major loss of function.
          • Resolved
          relates to

          New Feature - A new feature of the product, which has yet to be developed. HIVE-4123 The RLE encoding for ORC can be improved

          • Major - Major loss of function.
          • Closed

            Activity

              People

              • Assignee:
                omalley Owen O'Malley
                Reporter:
                omalley Owen O'Malley
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                Dates

                • Created:
                  Updated:
                  Resolved: