feat 初始化

2026-10-29 10:12:22 +08:00
parent 332d812347
commit 09c1df8a22
81 changed files with 2211 additions and 7821 deletions
--- a/module/tracer.go
+++ b/module/tracer.go
@@ -29,13 +29,17 @@ func (m *Tracer) Init() error {
 	if err != nil {
 		return err
 	}
-
+	samplingRate := 1.0
+	if 0 <= m.Cfg.Jaeger.SamplingRate && m.Cfg.Jaeger.SamplingRate <= 1 {
+		samplingRate = m.Cfg.Jaeger.SamplingRate
+	}
 	m.tp = sdktrace.NewTracerProvider(
 		sdktrace.WithBatcher(exporter),
 		sdktrace.WithResource(resource.NewWithAttributes(
 			semconv.SchemaURL,
 			semconv.ServiceNameKey.String(m.ServiceName),
 		)),
+		sdktrace.WithSampler(sdktrace.ParentBased(sdktrace.TraceIDRatioBased(samplingRate))),
 	)
 	otel.SetTracerProvider(m.tp)
 	otel.SetTextMapPropagator(propagation.TraceContext{})