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

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## Proposed changes

Issue Number: close #xxx

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This commit is contained in:
Gabriel
2024-09-13 22:46:31 +08:00
committed by GitHub
parent f9b79c613a
commit 168742deba
1 changed files with 2 additions and 1 deletions
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3
fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
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@ -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)
@ -2086,6 +2086,7 @@ public class SessionVariable implements Serializable, Writable {
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