Spring Cloud微服务架构（九）Hystrix监控数据聚合(Hystrix Turbine)

1、Turbine简介

在复杂的分布式系统中，相同服务的节点经常需要部署上百甚至上千个，很多时候，运维人员希望能够把相同服务的节点状态以一个整体集群的形式展现出来，这样可以更好的把握整个系统的状态。 为此，Netflix提供了一个开源项目（Turbine）来提供把多个hystrix.stream的内容聚合为一个数据源供Dashboard展示。

2、创建Hystrix Turbine监控服务

创建完pom文件修改如下

<?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>
​
    <groupId>com.vesus</groupId>
    <artifactId>springcloud-hystrix-turbine</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
​
    <name>springcloud-hystrix-turbine</name>
    <description>Demo project for Spring Boot</description>
​
    <parent>
        <groupId>com.vesus</groupId>
        <artifactId>springcloud-demo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
​
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!-- eureka：微服务注册 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <!--hystrix turbine 监控-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-turbine</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-netflix-turbine</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
​
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

3、创建application.yml配置文件

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8761/eureka/ # 注册中心地址
turbine:
  app-config: spring-cloud-ribbon-hystrix  # serviceId列表
  cluster-name-expression: new String("default") #clusterNameExpression指定集群名称
  combine-host-port: true
spring:
  application:
    name: spring-cloud-hystrix-turbine
server:
  port: 8769

4、入口方法加入@EnableTurbine，增加Turbine支持。

package com.vesus.springcloudhystrixturbine;
​
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.turbine.EnableTurbine;
​
@SpringBootApplication
@EnableDiscoveryClient
@EnableTurbine
public class SpringcloudHystrixTurbineApplication {
​
    public static void main(String[] args) {
        
        SpringApplication.run(SpringcloudHystrixTurbineApplication.class, args);
    }
}
​

5、访问 http://localhost:8768/hystrix ，显示dashboard页面

6、在监控地址栏输入 http://localhost:8769/turbine.stream，显示监控页面

源码：https://gitee.com/vesus198/springcloud-demo/tree/master/springcloud-hystrix-turbine