diff --git a/internal/trigger/reader/reader.go b/internal/trigger/reader/reader.go
index 06e2a36e5..a23a15e53 100644
--- a/internal/trigger/reader/reader.go
+++ b/internal/trigger/reader/reader.go
@@ -222,6 +222,7 @@ func (elReader *eventlogReader) loop(ctx context.Context, lr api.BusReader) erro
 		if err = elReader.putEvent(ctx, eo); err != nil {
 			span.RecordError(err, trace.WithTimestamp(time.Now()))
 			span.SetStatus(otelcode.Error, "put event to el reader failed")
+			span.End()
 			return err
 		}
 		elReader.offset = offset
diff --git a/observability/tracing/exporter/event_trace_exporter.go b/observability/tracing/exporter/event_trace_exporter.go
index f427d293e..0f5e01f74 100644
--- a/observability/tracing/exporter/event_trace_exporter.go
+++ b/observability/tracing/exporter/event_trace_exporter.go
@@ -30,11 +30,13 @@ type Option func(*Options)
 
 type Options struct {
 	Endpoints string
+	Eventbus  string
 }
 
 func defaultOptions() *Options {
 	return &Options{
 		Endpoints: "127.0.0.1:8080",
+		Eventbus:  "event-tracing",
 	}
 }
 
@@ -44,6 +46,12 @@ func WithEndpoint(endpoint string) Option {
 	}
 }
 
+func WithEventbus(eventbus string) Option {
+	return func(options *Options) {
+		options.Eventbus = eventbus
+	}
+}
+
 // Exporter exports trace data in the OTLP wire format.
 type Exporter struct {
 	endpoints string
@@ -69,7 +77,7 @@ func New(ctx context.Context, opts ...Option) (*Exporter, error) {
 		panic("failed to connect to Vanus cluster, error: " + err.Error())
 	}
 
-	ebOpt := vanussdk.WithEventbus("default", "tracing")
+	ebOpt := vanussdk.WithEventbus("default", defaultOpts.Eventbus)
 	exporter := &Exporter{
 		endpoints: defaultOpts.Endpoints,
 		client:    c,
diff --git a/observability/tracing/tracing.go b/observability/tracing/tracing.go
index 34e9da65f..317ada8e2 100644
--- a/observability/tracing/tracing.go
+++ b/observability/tracing/tracing.go
@@ -47,6 +47,7 @@ type Config struct {
 	OtelCollector      string `yaml:"otel_collector"`
 	EventTracingEnable bool   `yaml:"event_tracing_enable"`
 	EventCollector     string `yaml:"event_collector"`
+	Eventbus           string `yaml:"eventbus"`
 }
 
 var tp *tracerProvider
@@ -188,7 +189,9 @@ func newTracerProvider(serviceName string, cfg Config) (*trace.TracerProvider, e
 
 	if cfg.EventTracingEnable && cfg.EventCollector != "" {
 		// Set up a event exporter
-		eventExporter, err := exporter.New(ctx, exporter.WithEndpoint(cfg.EventCollector))
+		endpoint := exporter.WithEndpoint(cfg.EventCollector)
+		eventbus := exporter.WithEventbus(cfg.Eventbus)
+		eventExporter, err := exporter.New(ctx, endpoint, eventbus)
 		if err != nil {
 			return nil, fmt.Errorf("failed to create event exporter: %w", err)
 		}