trace

func DecorateHttpRequest ¶

func DecorateHttpRequest(req *http.Request, span opentracing.Span) *http.Request

func FromRequest ¶

func FromRequest(name string, req *http.Request) opentracing.Span

func GlobalTracer ¶

func GlobalTracer() opentracing.Tracer

func NewConstantTracer ¶

func NewConstantTracer(logger log.Logger, serviceName string) (opentracing.Tracer, io.Closer, error)

NewConstantTracer returns an opentracer.Tracer from Jaeger that always records spans for recording.

This method uses the opentracing singleton and Proometheus DefaultRegisterer singleton.

func NewProbabilisticTracer ¶

func NewProbabilisticTracer(logger log.Logger, serviceName string, rate float64) (opentracing.Tracer, io.Closer, error)

NewProbabilisticTracer returns an opentracer.Tracer from Jaeger that records approximately the given percentage of spans for recording.

This method uses the opentracing singleton and Proometheus DefaultRegisterer singleton.