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  1. Hive
  2. HIVE-15664

LLAP text cache: improve first query perf I

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 2.2.0
    • None

    Description

      1) Don't use ORC dictionary.
      2) Use VectorDeserialize.
      3) Don't parse the columns that are not included (cannot avoid reading them).
      4) Send VRB to the pipeline and write ORC in parallel (in background). HIVE-15672

      Also add an option to disable the encoding pipeline server-side.

      Attachments

        1. HIVE-15664.patch
          51 kB
          Sergey Shelukhin
        2. HIVE-15664.04.patch
          50 kB
          Sergey Shelukhin

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              sershe Sergey Shelukhin
              sershe Sergey Shelukhin
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                Created:
                Updated:
                Resolved: