sampling

Documentation

Index

• func NewAdaptiveSampler(opts ...AdaptiveSamplerOption) trace.Sampler
• type AdaptiveSampler
  • func (s *AdaptiveSampler) Description() string
  • func (s *AdaptiveSampler) ShouldSample(p trace.SamplingParameters) trace.SamplingResult
• type AdaptiveSamplerOption
  • func WithBaselineRate(rate float64) AdaptiveSamplerOption
  • func WithErrorRate(rate float64) AdaptiveSamplerOption
  • func WithSlowRate(rate float64) AdaptiveSamplerOption
  • func WithSlowThreshold(thresholdNano int64) AdaptiveSamplerOption

Functions

func NewAdaptiveSampler

func NewAdaptiveSampler(opts ...AdaptiveSamplerOption) trace.Sampler

NewAdaptiveSampler creates a new adaptive sampler.

Types

type AdaptiveSampler

type AdaptiveSampler struct {
	// contains filtered or unexported fields
}

AdaptiveSampler implements adaptive sampling based on span status and duration.

func (*AdaptiveSampler) Description

func (s *AdaptiveSampler) Description() string

Description returns sampler description.

func (*AdaptiveSampler) ShouldSample

func (s *AdaptiveSampler) ShouldSample(p trace.SamplingParameters) trace.SamplingResult

ShouldSample implements trace.Sampler interface.

type AdaptiveSamplerOption

type AdaptiveSamplerOption func(*AdaptiveSampler)

AdaptiveSamplerOption configures an adaptive sampler.

func WithBaselineRate

func WithBaselineRate(rate float64) AdaptiveSamplerOption

WithBaselineRate sets the baseline sampling rate (0.0 to 1.0).

func WithErrorRate

func WithErrorRate(rate float64) AdaptiveSamplerOption

WithErrorRate sets the error sampling rate (default 1.0 = 100%).

func WithSlowRate

func WithSlowRate(rate float64) AdaptiveSamplerOption

WithSlowRate sets the slow operation sampling rate (default 1.0 = 100%).

func WithSlowThreshold

func WithSlowThreshold(thresholdNano int64) AdaptiveSamplerOption

WithSlowThreshold sets the slow operation threshold in nanoseconds.