fix start warn log
@@ -92,6 +92,7 @@ func newTracerProvider(url string) (*tracesdk.TracerProvider, error) {
func New() filter.Filter {
tc := config.GetBootstrap().Tracing
switch tc.Type {
+ case "":
case TracingType_Jaeger:
tp, err := newTracerProvider(tc.URL)
if err != nil {
