Interface TraceSampler

All Known Implementing Classes:

TraceSampler.AlwaysSampler, TraceSampler.NeverSampler, TraceSampler.ProbabilisticSampler, TraceSampler.RateLimitedSampler

public interface TraceSampler

Sampling strategies for distributed traces.

Implementations

- AlwaysSampler: Sample all traces - NeverSampler: Sample no traces - ProbabilisticSampler: Sample based on a probability rate - RateLimitedSampler: Sample up to N traces per second

Since:

1.0

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	TraceSampler.AlwaysSampler	Always sample all traces.
static class	TraceSampler.NeverSampler	Never sample any traces.
static class	TraceSampler.ProbabilisticSampler	Sample based on a probability rate (0.0 to 1.0).
static class	TraceSampler.RateLimitedSampler	Rate-limited sampler (N spans per second).

Method Summary

Modifier and Type	Method	Description
boolean	shouldSample(String traceId, String spanName)	Determine if a span should be sampled.

Method Details

shouldSample

boolean shouldSample(String traceId,
 String spanName)

Determine if a span should be sampled.

Parameters:

traceId - the trace ID

spanName - the span name

Returns:

true if the span should be sampled