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  1. Hive
  2. HIVE-24703

LLAP move RowGroup reading to StrippePlanner

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Details

    • Improvement
    • Status: Open
    • Trivial
    • Resolution: Unresolved
    • None
    • None
    • llap
    • None

    Description

      LlapDataREader is almost identical to ORC's DataREader, however the main issue the readFileData method of the latter takes a DiskRangeList instead of a BufferChunkList.

      ORC-1.6 uses a separate StripePlanner that reads RowGroups converting them to BufferChunks while in LLAP we are doing our own custom planning with DiskRanges.

      I am opening this ticket to explore moving LLAP to Stripe planning

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-23553 Upgrade ORC version to 1.6.7

          • Major - Major loss of function.
          • Closed

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              Unassigned Unassigned
              pgaref Panagiotis Garefalakis
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              Dates

                Created:
                Updated: