org.springframework.cloud.sleuth.brave.sampler

Class ProbabilityBasedSampler

java.lang.Object

brave.sampler.Sampler

org.springframework.cloud.sleuth.brave.sampler.ProbabilityBasedSampler

public class ProbabilityBasedSampler
extends brave.sampler.Sampler

This sampler is appropriate for low-traffic instrumentation (ex servers that each receive less than 100K requests), or those who do not provision random trace ids. It not appropriate for collectors as the sampling decision isn't idempotent (consistent based on trace id). Implementation

Taken from CountingTraceIdSampler class from Zipkin project.

This counts to see how many out of 100 traces should be retained. This means that it is accurate in units of 100 traces.

Since:

1.0.0

Author:

Marcin Grzejszczak, Adrian Cole

Field Summary

Fields inherited from class brave.sampler.Sampler

ALWAYS_SAMPLE, NEVER_SAMPLE

Constructor Summary

Constructors

Constructor and Description
ProbabilityBasedSampler(Supplier<Float> probability)

Method Summary

Modifier and Type	Method and Description
boolean	isSampled(long traceId)

Methods inherited from class brave.sampler.Sampler

create

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ProbabilityBasedSampler

public ProbabilityBasedSampler(Supplier<Float> probability)

Method Detail

isSampled

public boolean isSampled(long traceId)

Specified by:

isSampled in class brave.sampler.Sampler