springCloud分布式微服务云架构 第十二篇: 断路器聚合监控(Hystrix Turbine

上一篇文章讲述了如何利用Hystrix Dashboard去监控断路器的Hystrix command。当咱们有不少个服务的时候,这就须要聚合因此服务的Hystrix Dashboard的数据了。这就须要用到Spring Cloud的另外一个组件了,即Hystrix Turbine。web

1、Hystrix Turbine简介
看单个的Hystrix Dashboard的数据并无什么多大的价值,要想看这个系统的Hystrix Dashboard数据就须要用到Hystrix Turbine。了解springcloud架构能够加求求:三五三六二四七二五九,Hystrix Turbine将每一个服务Hystrix Dashboard数据进行了整合。Hystrix Turbine的使用很是简单,只须要引入相应的依赖和加上注解和配置就能够了。spring

2、准备工做
本文使用的工程为上一篇文章的工程,在此基础上进行改造。由于咱们须要多个服务的Dashboard,因此须要再建一个服务,取名为service-lucy,它的基本配置同service-hi,具体见源码,在这里就不详细说明。浏览器

3、建立service-turbine
引入相应的依赖:架构

<dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-turbine</artifactId>
        </dependency>

    </dependencies>

在其入口类ServiceTurbineApplication加上注解@EnableTurbine,开启turbine,@EnableTurbine注解包含了@EnableDiscoveryClient注解,即开启了注册服务。app

@SpringBootApplication
@EnableEurekaClient
@EnableDiscoveryClient
@RestController
@EnableHystrix
@EnableHystrixDashboard
@EnableCircuitBreaker
@EnableTurbine
public class ServiceTurbineApplication {

    /**
     * http://localhost:8764/turbine.stream
     */

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

配置文件application.yml:cors

server:
  port: 8764

spring:
  application:
    name: service-turbine

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8761/eureka/
management:
  endpoints:
    web:
      exposure:
        include: "*"
      cors:
        allowed-origins: "*"
        allowed-methods: "*"

turbine:
  app-config: service-hi,service-lucy
  aggregator:
    clusterConfig: default
  clusterNameExpression: new String("default")
  combine-host: true
  instanceUrlSuffix:
    default: actuator/hystrix.stream

配置文件注解写的很清楚。分布式

4、Turbine演示
依次开启eureka-server、service-hi、service-lucy、service-turbine工程。ide

打开浏览器输入:http://localhost:8764/turbine.stream,界面以下
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依次请求:微服务

http://localhost:8762/hi?name=forezp

http://localhost:8763/hi?name=forezp

打开:http://localhost:8763/hystrix,输入监控流http://localhost:8764/turbine.stream
springCloud分布式微服务云架构 第十二篇: 断路器聚合监控(Hystrix Turbine

点击monitor stream 进入页面:
springCloud分布式微服务云架构 第十二篇: 断路器聚合监控(Hystrix Turbine

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