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SamplerProperties.java
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SamplerProperties.java
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/*
* Copyright 2013-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.sleuth.sampler;
import org.springframework.boot.context.properties.ConfigurationProperties;
/**
* Properties related to sampling.
*
* @author Marcin Grzejszczak
* @author Adrian Cole
* @since 1.0.0
*/
@ConfigurationProperties("spring.sleuth.sampler")
public class SamplerProperties {
/**
* Probability of requests that should be sampled. E.g. 1.0 - 100% requests should be
* sampled. The precision is whole-numbers only (i.e. there's no support for 0.1% of
* the traces).
*/
private float probability = 0.1f;
/**
* A rate per second can be a nice choice for low-traffic endpoints as it allows you
* surge protection. For example, you may never expect the endpoint to get more than
* 50 requests per second. If there was a sudden surge of traffic, to 5000 requests
* per second, you would still end up with 50 traces per second. Conversely, if you
* had a percentage, like 10%, the same surge would end up with 500 traces per second,
* possibly overloading your storage. Amazon X-Ray includes a rate-limited sampler
* (named Reservoir) for this purpose. Brave has taken the same approach via the
* {@link brave.sampler.RateLimitingSampler}.
*/
private Integer ratelimit;
public float getProbability() {
return this.probability;
}
public void setProbability(float probability) {
this.probability = probability;
}
public Integer getRatelimit() {
return this.ratelimit;
}
public void setRatelimit(Integer ratelimit) {
this.ratelimit = ratelimit;
}
}