spring-cloud微服务项目实战（10）-集成sleuth

目的

部署zipkin服务，配合sleuth进行调用分析

简介

zipkin是Twitter的开源的分布式跟踪系统，基于Dapper的论文设计而来。主要功能就是收集系统的调用数据，进行分析.论文参考http://bigbully.github.io/Dapper-translation/,其实现框架如下：

工具名称	提供商	类型	源码地址
Zipkin	twitter	开源	https://github.com/openzipkin/zipkin
pinpoint	naver	开源	https://github.com/naver/pinpoint
appdash	sourcegraph	开源	https://github.com/sourcegraph/appdash
cat	大众点评	开源	https://github.com/dianping/cat
hydra	京东	开源	https://github.com/odenny/hydra
鹰眼	阿里	闭源	-
oneAPM	oneapm	闭源	-

开工

1. 各系统添加zipkin依赖

    <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zipkin</artifactId>
   </dependency>

2. application.yml中添加zipkin配置

spring:
  Jackson:
    serialization:
      indent-output: true
  application:
    name: udm-server
  zipkin:
#我本地部署的zipkin服务用的9411端口
    base-url: http://localhost:9411
  sleuth:
    sampler:
      percentage: 1.0

3. 新建zipkin-dog项目module，我们将采用mysql作为数据存储（不配置，默认会存储到内存中），本次未集成mq或kafka等异步组件，有需要后续会介绍，依赖添加

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>open.template.work</groupId>
    <artifactId>zipkin-dog</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>zipkin-dog</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Edgware.SR2</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>io.zipkin.java</groupId>
            <artifactId>zipkin-autoconfigure-ui</artifactId>
        </dependency>
        <dependency>
            <groupId>io.zipkin.java</groupId>
            <artifactId>zipkin-server</artifactId>
        </dependency>
        <dependency>
            <groupId>io.zipkin.java</groupId>
            <artifactId>zipkin-storage-mysql</artifactId>
            <version>2.4.1</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

4. 更新zipkin-dog到application.yml配置文件,我用的本地mysql数据库

server:
  port: 9411
spring:
  datasource:
    driver-class-name:  com.mysql.jdbc.Driver
    url: jdbc:mysql://local.p2.cn:3306/zipkin
    username: root
    password: yeepay.com
zipkin:
  storage:
    type: mysql

5. 附加步，去掉udm-client中的当时的自定义负载均衡配置，测试发现配置了自定义的负载后，再集成zipkin，feign有偶尔找不到服务的bug，所以去掉

#udm-server:
#  NFLoadBalancerRuleClassName: com.netflix.loadbalancer.RandomRule


---
@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients(basePackages = "open.template.work.udm.client.feign")
@EnableHystrix
public class UdmClientApplication {

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

//
//  @Bean
//  public IRule ribbonRoundRobinRule() {
//      return new RandomRule();
//  }


}

6.启动zipkin-dog，重启其他各相应服务，切记所有需要zipkin记录调用链的服务都要添加1、2步的配置

7. 验收

   
   zipkin展示

再次重启zipkin-dog，数据依然存在，查看数据库已有请求数据，但spanid可能和日志打印不太一样，因为日志打印未16进制，数据库存储为bigint。

8. 附，为了提高性能可以集成mq或kafka等异步组件，本章暂未展示

完工！