SpringCloud Zipkin调用链监控

1.Zipkin server

1. 1 添加依赖

    2.8.4



    
        io.zipkin.java
        zipkin-autoconfigure-ui
        ${zipkin.version}
    
    
        io.zipkin.java
        zipkin-server
        ${zipkin.version}
        
            
                org.springframework.boot
                spring-boot-starter-log4j2
            
        
    
    
    
        io.zipkin.java
        zipkin-autoconfigure-collector-rabbitmq
        ${zipkin.version}
    
    
    
        io.zipkin.java
        zipkin-autoconfigure-storage-elasticsearch-http
        ${zipkin.version}
    

1.2 配置文件

采用elasticsearch存储调用链数据

Sleuth 默认采样算法的实现是 Reservoir sampling，具体的实现类是 PercentageBasedSampler，默认的采样比例为: 0.1，即 10%。我们可以通过 spring.sleuth.sampler.probability 来设置，所设置的值介于 0 到 1 之间，1 则表示全部采集

spring:
  application:
    name: cloud-zipkin-server
  sleuth:
    enabled: false  #表示当前程序不使用sleuth
    sampler:
      probability: 1  #采样率，推荐0.1，百分之百收集的话存储可能扛不住
server:
  port: 9411


zipkin:
  storage:
    StorageComponent: elasticsearch
    type: elasticsearch
    elasticsearch:
      cluster: e58ww0P
      hosts: http://localhost:9200
      index: zipkin
      index-shards: 5
      index-replicas: 1

1.3 添加@EnableZipkinServer注解

@EnableZipkinServer
@SpringBootApplication
public class YunfeiCloudZipkinServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(YunfeiCloudZipkinServerApplication.class, args);
    }

    @Bean
    public DemoTagsProvider demoTagsProvider(){
        return new DemoTagsProvider();
    }
}

1.4 解决访问server报错

java.lang.IllegalArgumentException: Prometheus requires that all meters with the same name have the same set of tag keys. There is already an existing meter containing tag keys [method, status, uri]. The meter you are attempting to register has keys [exception, method, status, uri].

可以不用关注这个问题，服务器一样能收集到日志，也可以有两种处理方式： a、将management.metrics.web.server.auto-time-requests=false设置为false,默认为true; b、重写DefaultWebMvcTagsProvider或者实现接口WebMvcTagsProvider，参照DefaultWebMvcTagsProvider的写法，只需要把DefaultWebMvcTagsProvider下getTages()方法的WebMvcTags.exception(exception)去除掉。

import io.micrometer.core.instrument.Tag;
import io.micrometer.core.instrument.Tags;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.actuate.metrics.web.servlet.WebMvcTags;
import org.springframework.boot.actuate.metrics.web.servlet.WebMvcTagsProvider;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class DemoTagsProvider implements WebMvcTagsProvider {
    static Logger logger = LoggerFactory.getLogger(DemoTagsProvider.class);

    @Override
    public Iterable getTags(HttpServletRequest request, HttpServletResponse response, Object handler,
                                 Throwable exception) {
        return Tags.of(WebMvcTags.method(request), WebMvcTags.uri(request, response),
                WebMvcTags.status(response));
    }

    @Override
    public Iterable getLongRequestTags(HttpServletRequest request, Object handler) {
        return Tags.of(WebMvcTags.method(request), WebMvcTags.uri(request, null));
    }

2. 创建Zipkin sleuth client

2.1 添加依赖

    org.springframework.cloud
    spring-cloud-starter-sleuth


    org.springframework.cloud
    spring-cloud-sleuth-zipkin

2.2 配置文件

lication:
    name: cloud-sleuth-client
  zipkin:
    base-url: http://localhost:9411     #http://sleuth server的ip:端口
  sleuth:
    sampler:
      probability: 1      #采样率，推荐0.1，百分之百收集的话存储可能扛不住

server:
  port: 9412

eureka:
  client:
    service-url:
      defaultZone: http://${eureka.host:localhost}:${eureka.port:8761}/eureka/

2.3 测试接口

@RestController
public class TestController {
   protected final static Logger logger = LoggerFactory.getLogger(TestController.class);

   @GetMapping("/testLog")
   public String infoLog() {
      return "testLog";
   }
}

浏览器访问：http://localhost:9412/testLog

经过网关访问：http://localhost:9988/api/web-feign-demo/test/msg

 

2.4 结果截图

访问http://localhost:9411，可以看到调用链数据

3. zipkin-dependencies 

      采用elasticsearch存储调用链数据，依赖分析没有数据，需要单独启动zipkin-dependencies，启动elasticsearch job定时任务，生成保存依赖分析数据。

3.1 Windows启动脚本

  zipkin.bat

@echo off

SET STORAGE_TYPE=elasticsearch
SET ES_HOSTS=localhost:9200
java -jar E:\dev\zipkin-dependencies-2.0.3.jar
pause;

zipkin-dependencies 下载地址： https://www.mvnjar.com/io.zipkin.dependencies/zipkin-dependencies/2.0.3/detail.html 

3.2 运行截图

执行zipkin.bat，启动定时任务