SpringCloud 熔断器仪表盘 Hystrix Dashboard实现

之前实现的熔断器的配置,SpringCloud还提供了熔断器的可视化界面仪表盘Hystrix Dashboard功能,这里配置的时候踩了一些坑,这边记录下。

之前熔断有通过Ribbon和Feign两种方式实现,这边可以通过仪表盘监控这两种方式的熔断。项目依旧基于之前的hystrix项目:

hystrix实现

目录

一、配置仪表盘

二、配置监控方

1、Ribbon方式

2、Feign方式


一、配置仪表盘

在工程中新建新的module,和之前项目创建方式一致。在组件选择中,选上hystrix,Hystrix Dashboard。这里建议选上eureka server和eureka Discovery。

SpringCloud 熔断器仪表盘 Hystrix Dashboard实现_第1张图片

创建完之后在启动类HystrixDashboarApplication上面加上注解@EnableHystrixDashboard

package com.hystrixdashboar;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.SpringCloudApplication;
import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;

@SpringBootApplication
@EnableHystrixDashboard
public class HystrixDashboarApplication {

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

}

在对应的pom.xml 文件中加上:


		org.springframework.boot
		spring-boot-starter-actuator

我这边的pom.xml文件(我这里配置了mysql)为:



	4.0.0
	
		org.springframework.boot
		spring-boot-starter-parent
		2.1.3.RELEASE
		 
	
	com.hystrixdashboar
	hystrixdashboar
	0.0.1-SNAPSHOT
	hystrixdashboar
	Demo project for Spring Boot

	
		1.8
		Greenwich.RELEASE
	

	
		
			org.springframework.boot
			spring-boot-starter-data-jpa
		
		
			org.springframework.boot
			spring-boot-starter-web
		
		
			org.springframework.cloud
			spring-cloud-starter-netflix-eureka-client
		
		
			org.springframework.cloud
			spring-cloud-starter-netflix-eureka-server
		
		
			org.springframework.cloud
			spring-cloud-starter-netflix-hystrix
		
		
			org.springframework.cloud
			spring-cloud-starter-netflix-hystrix-dashboard
		
		
			org.springframework.cloud
			spring-cloud-starter-netflix-ribbon
		

		
		org.springframework.boot
		spring-boot-starter-actuator
		

		
			mysql
			mysql-connector-java
			runtime
		
		
			org.springframework.boot
			spring-boot-starter-test
			test
		
	

	
		
			
				org.springframework.cloud
				spring-cloud-dependencies
				${spring-cloud.version}
				pom
				import
			
		
	

	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	

	
		
			spring-milestones
			Spring Milestones
			https://repo.spring.io/milestone
		
	


然后是application.properties配置文件,配置端口号和服务名称:

server.port = 10030

spring.application.name =  SPRING-CLOUD-HYSTRIX-DASHBOARD

eureka.client.serviceUrl.defaultZone= http://localhost:12345/eureka/

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/testmysql
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.max-idle=10
spring.datasource.max-wait=10000
spring.datasource.min-idle=5
spring.datasource.initial-size=5

 这里有第一个坑:如果之前有其他端口作为cloud eureka服务器的话,建议加上eureka.client.serviceUrl.defaultZone的配置,不然在启动的时候一直会报错。

这样Hystrix Dashboard这个module就弄好了,之后就是配置它监测的Ribbon或者feign了。

二、配置监控方

1、Ribbon方式

在项目的负载均衡Ribbon模块的pom.xml中加上actuator的配置:


		org.springframework.boot
		spring-boot-starter-actuator

在Ribbon的启动类上加上注解@EnableCircuitBreaker。

第二个坑:如果用的springboot 版本是2.0及以上的,在ribbon启动类里面要加上下面这段代码:

@Bean
    public ServletRegistrationBean getServlet(){
        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
        registrationBean.setLoadOnStartup(1);
        registrationBean.addUrlMappings("/actuator/hystrix.stream");
        registrationBean.setName("HystrixMetricsStreamServlet");
        return registrationBean;
    }

我这边最后Ribbon启动类代码是:

package com.cloud.ribbonservice;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import com.netflix.loadbalancer.IRule;
import com.netflix.loadbalancer.RandomRule;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;

@SpringBootApplication
@EnableDiscoveryClient
@EnableHystrix
@EnableCircuitBreaker
public class RibbonserviceApplication {

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

    @Bean
    @LoadBalanced
    RestTemplate restTemplate() {
        return new RestTemplate();
    }

    @Bean
    public IRule ribbonRule() {
        return new RandomRule();	//这里配置策略,和配置文件对应
    }

    @Bean
    public ServletRegistrationBean getServlet(){
        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
        registrationBean.setLoadOnStartup(1);
        registrationBean.addUrlMappings("/actuator/hystrix.stream");
        registrationBean.setName("HystrixMetricsStreamServlet");
        return registrationBean;
    }

}

然后在配置文件里面加上下面这段配置:

management.endpoints.web.exposure.include= '*'
management.endpoint.health.show-details= ALWAYS

这边最后的application.properties文件内容是(我这边有导入mysql,所以有datasource内容):

server.port = 11000

eureka.client.serviceUrl.defaultZone= http://localhost:12345/eureka/
spring.application.name= SPRING-CLIENT-02

SPRING-CLIENT-01.ribbon.NFLoadBalancerRuleClassName: com.netflix.loadbalancer.RandomRule

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/testmysql
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.max-idle=10
spring.datasource.max-wait=10000
spring.datasource.min-idle=5
spring.datasource.initial-size=5

management.endpoints.web.exposure.include= '*'
management.endpoint.health.show-details= ALWAYS

然后就依次运行eureka sever,eureka client,ribbon,和 Hystrix Dashboard服务。

我这边 Hystrix Dashboard配置的端口是10030。

第三个注意的地方是:由于监控的是ribbon,所以先要在浏览器中调用下ribbon里面的服务。这个参照之前hystrix文章写的:在浏览器中输入:

http://localhost:10010/getInfoTwo

调用一下。

然后在浏览器中输入 Hystrix Dashboard的本地地址:

http://localhost:10030/hystrix

显示的界面就是: 

 

 SpringCloud 熔断器仪表盘 Hystrix Dashboard实现_第2张图片

 这个是说明不同情况下不同的请求地址,前两个是对于集群模式使用的,最后一个是单节点模式使用的,此篇配置的是单节点模式,所以在页面的地址栏输入 http://localhost:11000/actuator/hystrix.stream

然后输入熔断器对应的ribbon stream地址 http://localhost:11000/actuator/hystrix.stream:

SpringCloud 熔断器仪表盘 Hystrix Dashboard实现_第3张图片

 点击monitor stream按钮:

显示监控仪表盘界面:

SpringCloud 熔断器仪表盘 Hystrix Dashboard实现_第4张图片

注:有可能你进来后页面显示的是 Loading... 状态,这个是因为你的服务没有被消费调用,所以此时没有数据监控,只要调用下被监控的服务,就会出现上图状态了。 

2、Feign方式

在pom.xml中加入:

        
            org.springframework.boot
            spring-boot-starter-actuator
        

在feign启动类加入注解和代码:

package com.springcloudfeign.feign;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.context.annotation.Bean;

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
@EnableCircuitBreaker
@EnableHystrix
public class FeignApplication {

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

    @Bean
    public ServletRegistrationBean getServlet(){
        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
        registrationBean.setLoadOnStartup(1);
        registrationBean.addUrlMappings("/actuator/hystrix.stream");
        registrationBean.setName("HystrixMetricsStreamServlet");
        return registrationBean;
    }


}

application.properties文件加上:

management.endpoints.web.exposure.include= '*'
management.endpoint.health.show-details= ALWAYS

 这样就可以了,然后先在浏览器中调用这个Feign 中的服务接口:参照之前构建hystrix实现中在浏览器中输入:

http://localhost:10010/getInfoTwo

调用之后,在仪表盘界面中输入需要监控的页面地址:http://localhost:10010/actuator/hystrix.stream:

显示的结果界面:

SpringCloud 熔断器仪表盘 Hystrix Dashboard实现_第5张图片

这样基本的仪表盘监控就实现了。 

 仪表盘中:实心圆:颜色代表健康度,(绿-黄-红-橙递减);大小代表并发量。

曲线:请求量的变化

 SpringCloud 熔断器仪表盘 Hystrix Dashboard实现_第6张图片

以上代码github地址: 源码地址

 

 

 

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