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| author | David Storch <david.storch@mongodb.com> | 2022-01-27 14:53:05 +0000 |
|---|---|---|
| committer | Evergreen Agent <no-reply@evergreen.mongodb.com> | 2022-01-27 15:53:17 +0000 |
| commit | f27f088ecf14825a2ae9cedb2c13093287ded84a (patch) | |
| tree | b38f12dcf2e9ad7a5c9e2a0b8546ff0cd69e6f2d /src/mongo/db/exec/multi_plan.cpp | |
| parent | 2891359b151883d41ceb3b79d769867462b79e89 (diff) | |
| download | mongo-f27f088ecf14825a2ae9cedb2c13093287ded84a.tar.gz | |
SERVER-62981 Make SBE multi-planner trial period length independent of collection size
This patch changes the 'internalQueryPlanEvaluationCollFraction' knob
to apply only to the classic engine. It introduces a separate knob,
'internalQueryPlanEvaluationCollFractionSbe', which applies only to
the SBE engine. The SBE knob has a default of 0, while the classic
engine retains its default of 0.3. This ensures that by default, no
candidate plan will ever do more than 10,000 storage reads during SBE
multi-planning.
Diffstat (limited to 'src/mongo/db/exec/multi_plan.cpp')
| -rw-r--r-- | src/mongo/db/exec/multi_plan.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mongo/db/exec/multi_plan.cpp b/src/mongo/db/exec/multi_plan.cpp index 7dfb6ffc5d7..892d05cb5ca 100644 --- a/src/mongo/db/exec/multi_plan.cpp +++ b/src/mongo/db/exec/multi_plan.cpp @@ -163,7 +163,8 @@ Status MultiPlanStage::pickBestPlan(PlanYieldPolicy* yieldPolicy) { // make sense. auto optTimer = getOptTimer(); - size_t numWorks = trial_period::getTrialPeriodMaxWorks(opCtx(), collection()); + size_t numWorks = trial_period::getTrialPeriodMaxWorks( + opCtx(), collection(), internalQueryPlanEvaluationCollFraction.load()); size_t numResults = trial_period::getTrialPeriodNumToReturn(*_query); try { |