服务容错保护断路器Hystrix之四：turbine集群监控

turbine 英[?t?:ba?n] n. 汽轮机; 涡轮机; 透平机;

本文通过引入Turbine来聚合ribbon-consumer服务的监控信息，并输出给hystrix dashboard来进行展示。

先上部署拓扑图：

构建turbine项目：

pom文件：

<?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.dxz.turbine</groupId>
    <artifactId>turbine</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>hystrix-dashboard</name>
    <description>dashboard project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.5.RELEASE</version>   <!--配合spring cloud版本 -->
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <properties>
        <!--设置字符编码及java版本 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <!--增加turbine的依赖 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-turbine</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <!--用于测试的，本例可省略 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <!--依赖管理，用于管理spring-cloud的依赖 -->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-parent</artifactId>
                <version>Brixton.SR3</version>   <!--官网为Angel.SR4版本，但是我使用的时候总是报错 -->
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <!--使用该插件打包 -->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

启动类TurbineApplication

package com.dxz.turbine;

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;

@EnableTurbine
@EnableDiscoveryClient
@SpringBootApplication
public class TurbineApplication {

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

配置信息

spring.application.name=turbine
server.port=2260
management.port=8990

eureka.client.serviceUrl.defaultZone=http://localhost:1111/eureka/

turbine.app-config=ribbon-consumer
turbine.cluster-name-expression="default"
turbine.combine-host-port=true

其中
turbine.app-config:指定被收集监控信息的服务名
turbine.cluster-name-expression：如果集群有多个时，用来区分集群
turbine.combine-host-port：可以让同一台主机上的服务通过主机名和端口号组合来进行区分。

启动turbine项目，

http://127.0.0.1:2260/turbine.stream

将http://127.0.0.1:2260/turbine.stream填入dashboard里，

结果：

与消息代理结合

详细见《spring cloud微服务实战》