enable scoreBasedBalancer default(#23454) (#23805)

Signed-off-by: MrPresent-Han <jamesharden11122@gmail.com>

Author: MrPresent-Han

configs/milvus.yaml

@@ -180,7 +180,7 @@ queryCoord:
   port: 19531
   autoHandoff: true # Enable auto handoff
   autoBalance: true # Enable auto balance
-  balancer: RowCountBasedBalancer # Balancer to use
+  balancer: ScoreBasedBalancer # Balancer to use
   globalRowCountFactor: 0.1 # expert parameters, only used by scoreBasedBalancer
   scoreUnbalanceTolerationFactor: 0.05 # expert parameters, only used by scoreBasedBalancer
   reverseUnBalanceTolerationFactor: 1.3 #expert parameters, only used by scoreBasedBalancer

internal/util/paramtable/component_param.go

@@ -985,7 +985,7 @@ func (p *queryCoordConfig) initCheckNodeInReplicaInterval() {
 }
 
 func (p *queryCoordConfig) initBalancer() {
-	balancer := p.Base.LoadWithDefault("queryCoord.balancer", "RowCountBasedBalancer")
+	balancer := p.Base.LoadWithDefault("queryCoord.balancer", "ScoreBasedBalancer")
 	p.Balancer = balancer
 }