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  1. HPCC
  2. HPCC-21019

Option to execute child queries sequentially

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    Details

    • Type: Improvement
    • Status: Accepted
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Code Generator, Roxie, Thor
    • Labels:
      None
    • Compatibility:
      Minor

      Description

      There are situations where the overhead of thread creation/contention outweighs any benefit, particularly for very simple child queries.

      We probably can't default to sequential as we can't tell whether a child query contains high-latency calls (soapcall, index read etc), but a flag on a transform might allow users to indicate cases where sequential performs better.

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              • Assignee:
                richardkchapman Richard Chapman
                Reporter:
                richardkchapman Richard Chapman
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                Dates

                • Created:
                  Updated: