fix: [2.4] Unify querynode metrics cleanup in collection release (#32805) (#32825)

Cherry-pick from master
pr: #32805 
Related to #32803

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

internal/querynodev2/pipeline/pipeline.go

@@ -19,7 +19,6 @@ package pipeline
 import (
 	"github.com/milvus-io/milvus/internal/querynodev2/delegator"
 	base "github.com/milvus-io/milvus/internal/util/pipeline"
-	"github.com/milvus-io/milvus/pkg/metrics"
 	"github.com/milvus-io/milvus/pkg/mq/msgdispatcher"
 	"github.com/milvus-io/milvus/pkg/util/paramtable"
 )
@@ -37,7 +36,6 @@ type pipeline struct {
 
 func (p *pipeline) Close() {
 	p.StreamPipeline.Close()
-	metrics.CleanupQueryNodeCollectionMetrics(paramtable.GetNodeID(), p.collectionID)
 }
 
 func NewPipeLine(

internal/querynodev2/segments/collection.go

@@ -25,7 +25,6 @@ package segments
 import "C"
 
 import (
-	"fmt"
 	"sync"
 	"unsafe"
 
@@ -119,16 +118,8 @@ func (m *collectionManager) Unref(collectionID int64, count uint32) bool {
 			log.Info("release collection due to ref count to 0", zap.Int64("collectionID", collectionID))
 			delete(m.collections, collectionID)
 			DeleteCollection(collection)
-			metrics.QueryNodeEntitiesSize.DeleteLabelValues(
-				fmt.Sprint(paramtable.GetNodeID()),
-				fmt.Sprint(collectionID),
-				SegmentTypeSealed.String(),
-			)
-			metrics.QueryNodeEntitiesSize.DeleteLabelValues(
-				fmt.Sprint(paramtable.GetNodeID()),
-				fmt.Sprint(collectionID),
-				SegmentTypeGrowing.String(),
-			)
+
+			metrics.CleanupQueryNodeCollectionMetrics(paramtable.GetNodeID(), collectionID)
 			return true
 		}
 		return false

pkg/metrics/querynode_metrics.go

@@ -756,27 +756,31 @@ func RegisterQueryNode(registry *prometheus.Registry) {
 }
 
 func CleanupQueryNodeCollectionMetrics(nodeID int64, collectionID int64) {
-	for _, label := range []string{DeleteLabel, InsertLabel} {
-		QueryNodeConsumerMsgCount.
-			Delete(
-				prometheus.Labels{
-					nodeIDLabelName:       fmt.Sprint(nodeID),
-					msgTypeLabelName:      label,
-					collectionIDLabelName: fmt.Sprint(collectionID),
-				})
+	nodeIDLabel := fmt.Sprint(nodeID)
+	collectionIDLabel := fmt.Sprint(collectionID)
+	QueryNodeConsumerMsgCount.
+		DeletePartialMatch(
+			prometheus.Labels{
+				nodeIDLabelName:       nodeIDLabel,
+				collectionIDLabelName: collectionIDLabel,
+			})
 
-		QueryNodeConsumeTimeTickLag.
-			Delete(
-				prometheus.Labels{
-					nodeIDLabelName:       fmt.Sprint(nodeID),
-					msgTypeLabelName:      label,
-					collectionIDLabelName: fmt.Sprint(collectionID),
-				})
-		QueryNodeNumEntities.
-			DeletePartialMatch(
-				prometheus.Labels{
-					nodeIDLabelName:       fmt.Sprint(nodeID),
-					collectionIDLabelName: fmt.Sprint(collectionID),
-				})
-	}
+	QueryNodeConsumeTimeTickLag.
+		DeletePartialMatch(
+			prometheus.Labels{
+				nodeIDLabelName:       nodeIDLabel,
+				collectionIDLabelName: collectionIDLabel,
+			})
+	QueryNodeNumEntities.
+		DeletePartialMatch(
+			prometheus.Labels{
+				nodeIDLabelName:       nodeIDLabel,
+				collectionIDLabelName: collectionIDLabel,
+			})
+	QueryNodeEntitiesSize.
+		DeletePartialMatch(
+			prometheus.Labels{
+				nodeIDLabelName:       nodeIDLabel,
+				collectionIDLabelName: collectionIDLabel,
+			})
 }