diff --git a/modular/p2p/p2pnode/approval.go b/modular/p2p/p2pnode/approval.go
index 96aa75fe8..935c47b46 100644
--- a/modular/p2p/p2pnode/approval.go
+++ b/modular/p2p/p2pnode/approval.go
@@ -154,7 +154,7 @@ func (a *ApprovalProtocol) onGetApprovalRequest(s network.Stream) {
 	req.SetApprovedSignature(signature)
 	req.SetApprovedSpOperatorAddress(a.node.baseApp.OperateAddress())
 	err = a.node.sendToPeer(ctx, s.Conn().RemotePeer(), GetApprovalResponse, req)
-	log.Infof("%s response to %s approval request, error: %s",
+	log.Infof("%s response to %s approval request, error: %v",
 		s.Conn().LocalPeer(), s.Conn().RemotePeer(), err)
 }
 
diff --git a/pkg/metrics/metric_items.go b/pkg/metrics/metric_items.go
index 6875c322a..51275639c 100644
--- a/pkg/metrics/metric_items.go
+++ b/pkg/metrics/metric_items.go
@@ -21,11 +21,11 @@ var MetricsItems = []prometheus.Collector{
 	TaskInQueueTimeHistogram,
 	// PieceStore metrics category
 	PutPieceTimeHistogram,
-	PutPieceTimeCounter,
+	PutPieceTotalNumberCounter,
 	GetPieceTimeHistogram,
-	GetPieceTimeCounter,
+	GetPieceTotalNumberCounter,
 	DeletePieceTimeHistogram,
-	DeletePieceTimeCounter,
+	DeletePieceTotalNumberCounter,
 	PieceUsageAmountGauge,
 	// Front module metrics category
 	UploadObjectSizeHistogram,
@@ -70,7 +70,7 @@ var MetricsItems = []prometheus.Collector{
 	DispatchGcObjectTaskCounter,
 	// Signer metrics category
 	SealObjectTimeHistogram,
-	// Spdb metrics category
+	// SPDB metrics category
 	SPDBTimeHistogram,
 	// BlockSyncer metrics category
 	BlockHeightLagGauge,
@@ -106,7 +106,7 @@ var (
 		Help:    "Track the time of putting piece data to piece store.",
 		Buckets: prometheus.DefBuckets,
 	}, []string{"put_piece_store_time"})
-	PutPieceTimeCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
+	PutPieceTotalNumberCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
 		Name: "put_piece_store_number",
 		Help: "Track the total number of putting piece data to piece store.",
 	}, []string{"put_piece_store_number"})
@@ -115,7 +115,7 @@ var (
 		Help:    "Track the time of getting piece data to piece store.",
 		Buckets: prometheus.DefBuckets,
 	}, []string{"get_piece_store_time"})
-	GetPieceTimeCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
+	GetPieceTotalNumberCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
 		Name: "get_piece_store_number",
 		Help: "Track the total number of getting piece data to piece store.",
 	}, []string{"get_piece_store_number"})
@@ -124,7 +124,7 @@ var (
 		Help:    "Track the time of deleting piece data to piece store.",
 		Buckets: prometheus.DefBuckets,
 	}, []string{"delete_piece_store_time"})
-	DeletePieceTimeCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
+	DeletePieceTotalNumberCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
 		Name: "delete_piece_store_number",
 		Help: "Track the total number of deleting piece data to piece store.",
 	}, []string{"delete_piece_store_number"})
diff --git a/store/piecestore/client/piece_store_client.go b/store/piecestore/client/piece_store_client.go
index 16203a142..3aab07b83 100644
--- a/store/piecestore/client/piece_store_client.go
+++ b/store/piecestore/client/piece_store_client.go
@@ -43,7 +43,7 @@ func (client *StoreClient) GetPiece(ctx context.Context, key string, offset, lim
 	defer func() {
 		metrics.GetPieceTimeHistogram.WithLabelValues(client.name).Observe(
 			time.Since(startTime).Seconds())
-		metrics.GetPieceTimeCounter.WithLabelValues(client.name).Inc()
+		metrics.GetPieceTotalNumberCounter.WithLabelValues(client.name).Inc()
 	}()
 
 	rc, err := client.ps.Get(ctx, key, offset, limit)
@@ -69,7 +69,7 @@ func (client *StoreClient) PutPiece(ctx context.Context, key string, value []byt
 	defer func() {
 		metrics.PutPieceTimeHistogram.WithLabelValues(client.name).Observe(
 			time.Since(startTime).Seconds())
-		metrics.PutPieceTimeCounter.WithLabelValues(client.name).Inc()
+		metrics.PutPieceTotalNumberCounter.WithLabelValues(client.name).Inc()
 		if err != nil {
 			metrics.PieceUsageAmountGauge.WithLabelValues(client.name).Add(float64(len(value)))
 		}
@@ -88,7 +88,7 @@ func (client *StoreClient) DeletePiece(ctx context.Context, key string) error {
 	defer func() {
 		metrics.DeletePieceTimeHistogram.WithLabelValues(client.name).Observe(
 			time.Since(startTime).Seconds())
-		metrics.DeletePieceTimeCounter.WithLabelValues(client.name).Inc()
+		metrics.DeletePieceTotalNumberCounter.WithLabelValues(client.name).Inc()
 		if err != nil {
 			metrics.PieceUsageAmountGauge.WithLabelValues(client.name).Add(0 - float64(valSize))
 		}