Documentation
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Index ¶
- func NewRemoteSampler(ctx context.Context, serviceName string, fraction float64, ...) (sdktrace.Sampler, error)
- func NewTracerProvider(service, host, development string, port int, sampler trace.Sampler) (*trace.TracerProvider, error)
- func SemVersion() string
- func Version() string
- type FallbackSampler
- type Jaeger
- type Option
- type RemoteSamplerOption
- type Server
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func NewRemoteSampler ¶ added in v0.2.14
func NewRemoteSampler(ctx context.Context, serviceName string, fraction float64, opts ...RemoteSamplerOption) (sdktrace.Sampler, error)
NewRemoteSampler returns a sampler which decides to sample a given request or not based on the sampling rules set by users on AWS X-Ray console. Sampler also periodically polls sampling rules and sampling targets.
func NewTracerProvider ¶
func SemVersion ¶
func SemVersion() string
SemVersion is the semantic version to be supplied to tracer/meter creation.
Types ¶
type FallbackSampler ¶ added in v0.2.4
type FallbackSampler struct {
// contains filtered or unexported fields
}
FallbackSampler does the sampling at a rate of 1 req/sec and 5% of additional requests.
func NewFallbackSampler ¶ added in v0.2.4
func NewFallbackSampler(fraction float64) *FallbackSampler
NewFallbackSampler returns a FallbackSampler which samples 1 req/sec and additional 5% of requests using traceIDRatioBasedSampler.
func (*FallbackSampler) Description ¶ added in v0.2.4
func (fs *FallbackSampler) Description() string
Description returns description of the sampler being used.
func (*FallbackSampler) ShouldSample ¶ added in v0.2.4
func (fs *FallbackSampler) ShouldSample(parameters sdktrace.SamplingParameters) sdktrace.SamplingResult
ShouldSample implements the logic of borrowing 1 req/sec and then use traceIDRatioBasedSampler to sample 5% of additional requests.
type Jaeger ¶
type Jaeger struct{}
Jaeger propagator serializes SpanContext to/from Jaeger Headers
Jaeger format:
uber-tracer-id: {tracer-id}:{span-id}:{parent-span-id}:{flags}
func (Jaeger) Extract ¶
func (jaeger Jaeger) Extract(ctx context.Context, carrier propagation.TextMapCarrier) context.Context
Extract extracts a context from the carrier if it contains Jaeger headers.
func (Jaeger) Inject ¶
func (jaeger Jaeger) Inject(ctx context.Context, carrier propagation.TextMapCarrier)
Inject injects a context to the carrier following jaeger format. The parent span ID is set to an dummy parent span id as the most implementations do.
type Option ¶
type Option interface {
// contains filtered or unexported methods
}
Option specifies instrumentation configuration options.
func WithPropagators ¶
func WithPropagators(propagators propagation.TextMapPropagator) Option
WithPropagators specifies propagators to use for extracting information from the HTTP requests. If none are specified, global ones will be used.
func WithProvider ¶ added in v0.2.1
func WithProvider(provider oteltrace.TracerProvider) Option
WithProvider specifies a tracer provider to use for creating a tracer. If none is specified, the global provider is used.
type RemoteSamplerOption ¶ added in v0.2.14
type RemoteSamplerOption interface {
// contains filtered or unexported methods
}
RemoteSamplerOption sets configuration on the sampler.
func WithEndpoint ¶ added in v0.2.14
func WithEndpoint(endpoint url.URL) RemoteSamplerOption
WithEndpoint sets custom proxy endpoint. If this option is not provided the default endpoint used will be http://127.0.0.1:2000.
func WithLogger ¶ added in v0.2.14
func WithLogger(l glog.ILogger) RemoteSamplerOption
WithLogger sets custom logging for remote sampling implementation. If this option is not provided the default logger used will be go-logr/stdr (https://github.com/go-logr/stdr).
func WithSamplingRulesPollingInterval ¶ added in v0.2.14
func WithSamplingRulesPollingInterval(polingInterval time.Duration) RemoteSamplerOption
WithSamplingRulesPollingInterval sets polling interval for sampling rules. If this option is not provided the default samplingRulesPollingInterval used will be 300 seconds.
type Server ¶
type Server struct {
Tracer oteltrace.Tracer
TracerProvider oteltrace.TracerProvider
Propagators propagation.TextMapPropagator
// contains filtered or unexported fields
}
func (*Server) FromContext ¶ added in v0.2.15
func (s *Server) FromContext(ctx context.Context) otelBaggage.Baggage
func (*Server) SpanFromContext ¶ added in v0.2.15
func (*Server) WithAttributes ¶ added in v0.2.15
func (s *Server) WithAttributes(attributes ...attribute.KeyValue) otelTrace.SpanStartEventOption
WithAttributes adds the attributes related to a span life-cycle event. These attributes are used to describe the work a Span represents when this option is provided to a Span's start or end events. Otherwise, these attributes provide additional information about the event being recorded (e.g. error, state change, processing progress, system event).
If multiple of these options are passed the attributes of each successive option will extend the attributes instead of overwriting. There is no guarantee of uniqueness in the resulting attributes.
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