diff --git a/internal/datacoord/meta.go b/internal/datacoord/meta.go
index 51ed90a1db..0708d78f98 100644
--- a/internal/datacoord/meta.go
+++ b/internal/datacoord/meta.go
@@ -176,8 +176,20 @@ func (m *meta) AddCollection(collection *collectionInfo) {
 // DropCollection drop a collection from meta
 func (m *meta) DropCollection(collectionID int64) {
 	log.Info("meta update: drop collection", zap.Int64("collectionID", collectionID))
+	segments := m.SelectSegments(WithCollection(collectionID))
 	m.Lock()
 	defer m.Unlock()
+	coll, ok := m.collections[collectionID]
+	if ok {
+		metrics.CleanupDataCoordNumStoredRows(coll.DatabaseName, collectionID)
+		metrics.CleanupDataCoordBulkInsertVectors(coll.DatabaseName, collectionID)
+		for _, seg := range segments {
+			metrics.CleanupDataCoordSegmentMetrics(coll.DatabaseName, collectionID, seg.ID)
+		}
+	} else {
+		log.Warn("not found database name", zap.Int64("collectionID", collectionID))
+	}
+
 	delete(m.collections, collectionID)
 	metrics.DataCoordNumCollections.WithLabelValues().Set(float64(len(m.collections)))
 	log.Info("meta update: drop collection - complete", zap.Int64("collectionID", collectionID))
@@ -321,6 +333,8 @@ func (m *meta) GetCollectionBinlogSize() (int64, map[UniqueID]int64, map[UniqueI
 
 // GetCollectionIndexFilesSize returns the total index files size of all segment for each collection.
 func (m *meta) GetCollectionIndexFilesSize() uint64 {
+	m.RLock()
+	defer m.RUnlock()
 	var total uint64
 	for _, segmentIdx := range m.indexMeta.GetAllSegIndexes() {
 		coll, ok := m.collections[segmentIdx.CollectionID]
@@ -385,6 +399,11 @@ func (m *meta) DropSegment(segmentID UniqueID) error {
 		return err
 	}
 	metrics.DataCoordNumSegments.WithLabelValues(segment.GetState().String(), segment.GetLevel().String()).Dec()
+	coll, ok := m.collections[segment.CollectionID]
+	if ok {
+		metrics.CleanupDataCoordSegmentMetrics(coll.DatabaseName, segment.CollectionID, segment.ID)
+	}
+
 	m.segments.DropSegment(segmentID)
 	log.Info("meta update: dropping segment - complete",
 		zap.Int64("segmentID", segmentID))
diff --git a/internal/datacoord/services.go b/internal/datacoord/services.go
index 22e4a2d585..146d3ebe92 100644
--- a/internal/datacoord/services.go
+++ b/internal/datacoord/services.go
@@ -586,7 +586,6 @@ func (s *Server) DropVirtualChannel(ctx context.Context, req *datapb.DropVirtual
 		return resp, nil
 	}
 
-	var collectionID int64
 	segments := make([]*SegmentInfo, 0, len(req.GetSegments()))
 	for _, seg2Drop := range req.GetSegments() {
 		info := &datapb.SegmentInfo{
@@ -602,7 +601,6 @@ func (s *Server) DropVirtualChannel(ctx context.Context, req *datapb.DropVirtual
 		}
 		segment := NewSegmentInfo(info)
 		segments = append(segments, segment)
-		collectionID = seg2Drop.GetCollectionID()
 	}
 
 	err := s.meta.UpdateDropChannelSegmentInfo(channel, segments)
@@ -619,11 +617,7 @@ func (s *Server) DropVirtualChannel(ctx context.Context, req *datapb.DropVirtual
 	}
 	s.segmentManager.DropSegmentsOfChannel(ctx, channel)
 	s.compactionHandler.removeTasksByChannel(channel)
-
-	metrics.CleanupDataCoordNumStoredRows(collectionID)
 	metrics.DataCoordCheckpointUnixSeconds.DeleteLabelValues(fmt.Sprint(paramtable.GetNodeID()), channel)
-	metrics.CleanupDataCoordBulkInsertVectors(collectionID)
-
 	// no compaction triggered in Drop procedure
 	return resp, nil
 }
diff --git a/internal/metastore/kv/datacoord/kv_catalog.go b/internal/metastore/kv/datacoord/kv_catalog.go
index f9b9c86ce6..eaa33ba18f 100644
--- a/internal/metastore/kv/datacoord/kv_catalog.go
+++ b/internal/metastore/kv/datacoord/kv_catalog.go
@@ -445,7 +445,6 @@ func (kc *Catalog) DropSegment(ctx context.Context, segment *datapb.SegmentInfo)
 		return err
 	}
 
-	metrics.CleanupDataCoordSegmentMetrics(segment.CollectionID, segment.ID)
 	return nil
 }
 
diff --git a/pkg/metrics/datacoord_metrics.go b/pkg/metrics/datacoord_metrics.go
index dfd8749f53..0fb96d9cff 100644
--- a/pkg/metrics/datacoord_metrics.go
+++ b/pkg/metrics/datacoord_metrics.go
@@ -322,34 +322,38 @@ func RegisterDataCoord(registry *prometheus.Registry) {
 	registry.MustRegister(GarbageCollectorRunCount)
 }
 
-func CleanupDataCoordSegmentMetrics(collectionID int64, segmentID int64) {
+func CleanupDataCoordSegmentMetrics(dbName string, collectionID int64, segmentID int64) {
 	DataCoordSegmentBinLogFileCount.
 		Delete(
 			prometheus.Labels{
 				collectionIDLabelName: fmt.Sprint(collectionID),
 				segmentIDLabelName:    fmt.Sprint(segmentID),
 			})
-	DataCoordStoredBinlogSize.DeletePartialMatch(prometheus.Labels{
+	DataCoordStoredBinlogSize.Delete(prometheus.Labels{
+		databaseLabelName:     dbName,
 		collectionIDLabelName: fmt.Sprint(collectionID),
 		segmentIDLabelName:    fmt.Sprint(segmentID),
 	})
-	DataCoordStoredIndexFilesSize.DeletePartialMatch(prometheus.Labels{
+	DataCoordStoredIndexFilesSize.Delete(prometheus.Labels{
+		databaseLabelName:     dbName,
 		collectionIDLabelName: fmt.Sprint(collectionID),
 		segmentIDLabelName:    fmt.Sprint(segmentID),
 	})
 }
 
-func CleanupDataCoordNumStoredRows(collectionID int64) {
+func CleanupDataCoordNumStoredRows(dbName string, collectionID int64) {
 	for _, state := range commonpb.SegmentState_name {
-		DataCoordNumStoredRows.DeletePartialMatch(prometheus.Labels{
+		DataCoordNumStoredRows.Delete(prometheus.Labels{
+			databaseLabelName:     dbName,
 			collectionIDLabelName: fmt.Sprint(collectionID),
 			segmentStateLabelName: fmt.Sprint(state),
 		})
 	}
 }
 
-func CleanupDataCoordBulkInsertVectors(collectionID int64) {
-	DataCoordBulkVectors.DeletePartialMatch(prometheus.Labels{
+func CleanupDataCoordBulkInsertVectors(dbName string, collectionID int64) {
+	DataCoordBulkVectors.Delete(prometheus.Labels{
+		databaseLabelName:     dbName,
 		collectionIDLabelName: fmt.Sprint(collectionID),
 	})
 }