diff --git a/core/logx/tracelogger.go b/core/logx/tracelogger.go
index 2da05072..5d48c6de 100644
--- a/core/logx/tracelogger.go
+++ b/core/logx/tracelogger.go
@@ -96,7 +96,10 @@ func WithContext(ctx context.Context) Logger {
 func spanIdFromContext(ctx context.Context) string {
 	span := trace.SpanFromContext(ctx)
 	if span.IsRecording() {
-		return span.SpanContext().SpanID().String()
+		spanCtx := span.SpanContext()
+		if spanCtx.IsValid() {
+			return spanCtx.SpanID().String()
+		}
 	}
 
 	t, ok := ctx.Value(tracespec.TracingKey).(tracespec.Trace)
@@ -110,7 +113,10 @@ func spanIdFromContext(ctx context.Context) string {
 func traceIdFromContext(ctx context.Context) string {
 	span := trace.SpanFromContext(ctx)
 	if span.IsRecording() {
-		return span.SpanContext().SpanID().String()
+		spanCtx := span.SpanContext()
+		if spanCtx.IsValid() {
+			return span.SpanContext().TraceID().String()
+		}
 	}
 
 	t, ok := ctx.Value(tracespec.TracingKey).(tracespec.Trace)
diff --git a/core/service/serviceconf.go b/core/service/serviceconf.go
index 6a36e682..6496aab1 100644
--- a/core/service/serviceconf.go
+++ b/core/service/serviceconf.go
@@ -7,6 +7,7 @@ import (
 	"github.com/tal-tech/go-zero/core/logx"
 	"github.com/tal-tech/go-zero/core/prometheus"
 	"github.com/tal-tech/go-zero/core/stat"
+	"github.com/tal-tech/go-zero/core/trace/opentelemetry"
 )
 
 const (
@@ -26,11 +27,10 @@ const (
 type ServiceConf struct {
 	Name       string
 	Log        logx.LogConf
-	Mode       string            `json:",default=pro,options=dev|test|rt|pre|pro"`
-	MetricsUrl string            `json:",optional"`
-	Prometheus prometheus.Config `json:",optional"`
-	// TODO: enable it in v1.2.2
-	// Telemetry opentelemetry.Config `json:",optional"`
+	Mode       string               `json:",default=pro,options=dev|test|rt|pre|pro"`
+	MetricsUrl string               `json:",optional"`
+	Prometheus prometheus.Config    `json:",optional"`
+	Telemetry  opentelemetry.Config `json:",optional"`
 }
 
 // MustSetUp sets up the service, exits on error.
@@ -52,11 +52,10 @@ func (sc ServiceConf) SetUp() error {
 	sc.initMode()
 	prometheus.StartAgent(sc.Prometheus)
 
-	// TODO: enable it in v1.2.2
-	// if len(sc.Telemetry.Name) == 0 {
-	// 	sc.Telemetry.Name = sc.Name
-	// }
-	// opentelemetry.StartAgent(sc.Telemetry)
+	if len(sc.Telemetry.Name) == 0 {
+		sc.Telemetry.Name = sc.Name
+	}
+	opentelemetry.StartAgent(sc.Telemetry)
 
 	if len(sc.MetricsUrl) > 0 {
 		stat.SetReportWriter(stat.NewRemoteWriter(sc.MetricsUrl))
diff --git a/core/trace/opentelemetry/serverstream.go b/core/trace/opentelemetry/serverstream.go
index 43a24b49..d67146bc 100644
--- a/core/trace/opentelemetry/serverstream.go
+++ b/core/trace/opentelemetry/serverstream.go
@@ -6,8 +6,8 @@ import (
 	"google.golang.org/grpc"
 )
 
-// serverStream wraps around the embedded grpc.ServerStream, and intercepts the RecvMsg and
-// SendMsg method call.
+// serverStream wraps around the embedded grpc.ServerStream,
+// and intercepts the RecvMsg and SendMsg method call.
 type serverStream struct {
 	grpc.ServerStream
 	ctx context.Context
diff --git a/rest/engine.go b/rest/engine.go
index 5f92d99b..4ed8e0cd 100644
--- a/rest/engine.go
+++ b/rest/engine.go
@@ -108,7 +108,7 @@ func (s *engine) bindRoute(fr featuredRoutes, router httpx.Router, metrics *stat
 	route Route, verifier func(chain alice.Chain) alice.Chain) error {
 	chain := alice.New(
 		handler.TracingHandler,
-		handler.OtelHandler(route.Path),
+		handler.OtelHandler(s.conf.Name, route.Path),
 		s.getLogHandler(),
 		handler.PrometheusHandler(route.Path),
 		handler.MaxConns(s.conf.MaxConns),
diff --git a/rest/handler/otelhandler.go b/rest/handler/otelhandler.go
index 72bbfafa..9f41d484 100644
--- a/rest/handler/otelhandler.go
+++ b/rest/handler/otelhandler.go
@@ -11,7 +11,7 @@ import (
 )
 
 // OtelHandler return a middleware that process the opentelemetry.
-func OtelHandler(path string) func(http.Handler) http.Handler {
+func OtelHandler(serviceName, path string) func(http.Handler) http.Handler {
 	return func(next http.Handler) http.Handler {
 		if !opentelemetry.Enabled() {
 			return next
@@ -26,7 +26,8 @@ func OtelHandler(path string) func(http.Handler) http.Handler {
 				ctx,
 				path,
 				oteltrace.WithSpanKind(oteltrace.SpanKindServer),
-				oteltrace.WithAttributes(semconv.HTTPServerAttributesFromHTTPRequest("", path, r)...),
+				oteltrace.WithAttributes(semconv.HTTPServerAttributesFromHTTPRequest(
+					serviceName, path, r)...),
 			)
 			defer span.End()
 
diff --git a/tools/goctl/rpc/generator/genmain.go b/tools/goctl/rpc/generator/genmain.go
index 0785708d..f7aff9dd 100644
--- a/tools/goctl/rpc/generator/genmain.go
+++ b/tools/goctl/rpc/generator/genmain.go
@@ -21,9 +21,9 @@ import (
 	{{.imports}}
 
 	"github.com/tal-tech/go-zero/core/conf"
+	"github.com/tal-tech/go-zero/core/service"
 	"github.com/tal-tech/go-zero/zrpc"
 	"google.golang.org/grpc"
-	"github.com/tal-tech/go-zero/core/service"
 	"google.golang.org/grpc/reflection"
 )