com.datadoghq.trace.sampling

Class RateSampler

java.lang.Object

com.datadoghq.trace.sampling.AbstractSampler

com.datadoghq.trace.sampling.RateSampler

All Implemented Interfaces:

Sampler

@AutoService(value=Sampler.class)
public class RateSampler
extends AbstractSampler

This sampler sample the traces at a predefined rate.

Keep (100 * `sample_rate`)% of the traces. It samples randomly, its main purpose is to reduce the integration footprint.

Constructor Summary

Constructors

Constructor and Description
RateSampler(double sampleRate) Build an instance of the sampler.

Method Summary

Modifier and Type	Method and Description
boolean	doSample(DDBaseSpan<?> span)
double	getSampleRate()

Methods inherited from class com.datadoghq.trace.sampling.AbstractSampler

addSkipTagPattern, sample

Methods inherited from class java.lang.Object

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

Constructor Detail

RateSampler

public RateSampler(double sampleRate)

Build an instance of the sampler. The Sample rate is fixed for each instance.

Parameters:

sampleRate - a number [0,1] representing the rate ratio.

Method Detail

doSample

public boolean doSample(DDBaseSpan<?> span)

getSampleRate

public double getSampleRate()