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  1. IMPALA
  2. IMPALA-3200 Replace BufferedBlockMgr with new buffer pool
  3. IMPALA-5676

BufferedTupleStreamV2::CheckConsistency() is too slow for large streams with small pages in Debug build

    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: Impala 2.10.0
    • Fix Version/s: Impala 2.10.0
    • Component/s: Backend
    • Labels:
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      Description

      I saw a spilling query (with a bad plan) spending a huge amount of time in this function.

      We should probably split out the O parts of CheckConsistency() into a separate function that is run less frequently, e.g. once per pass over the stream.

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            • Assignee:
              tarmstrong Tim Armstrong
              Reporter:
              tarmstrong Tim Armstrong
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                Updated:
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