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[followup](branch-2.1) Fuzzy parallel_prepare_threshold #40793

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Merged
yiguolei merged 1 commit into from
Sep 13, 2024
Merged

[followup](branch-2.1) Fuzzy parallel_prepare_threshold #40793

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3 changes: 2 additions & 1 deletion fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
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Original file line number Diff line number Diff line change
Expand Up @@ -1046,7 +1046,7 @@ public class SessionVariable implements Serializable, Writable {
@VariableMgr.VarAttr(name = AUTO_BROADCAST_JOIN_THRESHOLD)
public double autoBroadcastJoinThreshold = 0.8;

@VariableMgr.VarAttr(name = PARALLEL_PREPARE_THRESHOLD)
@VariableMgr.VarAttr(name = PARALLEL_PREPARE_THRESHOLD, fuzzy = true)
public int parallelPrepareThreshold = 32;

@VariableMgr.VarAttr(name = ENABLE_COST_BASED_JOIN_REORDER)
Expand Down Expand Up @@ -2086,6 +2086,7 @@ public void initFuzzyModeVariables() {
Random random = new SecureRandom();
this.parallelExecInstanceNum = random.nextInt(8) + 1;
this.parallelPipelineTaskNum = random.nextInt(8);
this.parallelPrepareThreshold = random.nextInt(32) + 1;
this.enableCommonExprPushdown = random.nextBoolean();
this.enableLocalExchange = random.nextBoolean();
// This will cause be dead loop, disable it first
Expand Down