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  1. Hive
  2. HIVE-17458 VectorizedOrcAcidRowBatchReader doesn't handle 'original' files
  3. HIVE-17944

OrcSplit.canUseLlapIo() disables LLAP IO for non-vectorized acid reads

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Won't Fix
    • 3.0.0
    • None
    • llap, Transactions
    • None

    Description

      As of HIVE-17458, the logic for Acid reads is enable LLAP IO for vectorized read if VectorizedOrcAcidRowBatchReader can handle it.

      and disable it for any non-vectorized acid read. This last part is on par with HIVE-12631.
      The reason is that LlapRecordReader creates VectorizedOrcAcidRowBatchReader for acid + vectorization, but doesn't create any Acid aware reader w/o vectorization.

      cc sershe, teddy.choi

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          relates to

          Sub-task - The sub-task of the issue HIVE-17915 Enable VectorizedOrcAcidRowBatchReader to be used with LLAP IO elevator over original acid files

          • Critical - Crashes, loss of data, severe memory leak.
          • In Progress

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              Unassigned Unassigned
              ekoifman Eugene Koifman
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              Dates

                Created:
                Updated:
                Resolved: