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  1. IMPALA
  2. IMPALA-3902 Multi-threaded query execution
  3. IMPALA-4577

Adjust maximum size of row batch queue for non-Parquet scans with MT_DOP>0.

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      Description

      When MT_DOP is set, non-Parquet scans are run with the old scan node with a fixed NUM_SCANNER_THREADS=1

      We should adjust the maximum size of the row batch queue based on MT_DOP for each such scan instance to avoid a significant increase in
      the memory consumption of such scans.

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            • Assignee:
              alex.behm Alexander Behm
              Reporter:
              alex.behm Alexander Behm
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