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  1. Core Server
  2. SERVER-59060

SBE replans far more aggressively than classic engine

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    Details

    • Type: Task
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 5.1.0-rc0
    • Component/s: None
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Sprint:
      QE 2021-08-23

      Description

      SBE will replan if the cached plan uses more works than the 'decisionReads'. See here. The classic engine only replans when the cached plan usesĀ ~10x more works than expected. See here.

      This could lead to scenarios where the query system repeatedly evicts cached plans when it isn't really necessary.

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            Assignee:
            ian.boros Ian Boros
            Reporter:
            ian.boros Ian Boros
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              Created:
              Updated:
              Resolved: