目的:

  Hystrix集群及监控turbine

  Feign、Hystrix整合之服务熔断服务降级彻底解耦

  集群后超时设置


Hystrix集群及监控turbine

 新建一个springboot工程microservice-student-provider-hystrix-1005把它作为集群

工程中测试详细代码见https://www.cnblogs.com/huangting/p/11902121.html

导入pom依赖

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.ht</groupId>
<artifactId>htSpringCloud</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>microservice-student-provider-hystrix-1005</artifactId> <properties>
<java.version>1.8</java.version>
</properties> <dependencies>
<!--添加注册中心Eureka相关配置-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<!-- actuator监控引入 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</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-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
</dependency>
<!-- 修改后立即生效,热部署 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>springloaded</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
<dependency>
<groupId>com.ht</groupId>
<artifactId>microservice-common</artifactId>
<version>1.0-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
<!--Hystrix相关依赖-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency> </dependencies> <build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build> </project>

修改yml配置:

---
server:
port: 1004
context-path: /
spring:
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
username: root
password: root
jpa:
hibernate:
ddl-auto: update
show-sql: true
application:
name: microservice-student
profiles: provider-hystrix-1004 eureka:
instance:
hostname: localhost
appname: microservice-student
instance-id: microservice-student:1004
prefer-ip-address: true
client:
service-url:
defaultZone: http://eureka2001.ht.com:2001/eureka/,http://eureka2002.ht.com:2002/eureka/,http://eureka2003.ht.com:2003/eureka/ info:
groupId: com.ht.testSpringcloud
artifactId: microservice-student-provider-hystrix-1004
version: 1.0-SNAPSHOT
userName: http://ht.com
phone: 123456 hystrix:
command:
default:
execution:
isolation:
thread:
timeoutInMilliseconds: 1500 ---
server:
port: 1005
context-path: /
spring:
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
username: root
password: root
jpa:
hibernate:
ddl-auto: update
show-sql: true
application:
name: microservice-student
profiles: provider-hystrix-1005 eureka:
instance:
hostname: localhost
appname: microservice-student
instance-id: microservice-student:1005
prefer-ip-address: true
client:
service-url:
defaultZone: http://eureka2001.ht.com:2001/eureka/,http://eureka2002.ht.com:2002/eureka/,http://eureka2003.ht.com:2003/eureka/ info:
groupId: com.ht.htSpringCloud
artifactId: microservice-student-provider-hystrix-1005
version: 1.0-SNAPSHOT
userName: http://ht.com
phone: 123456 hystrix:
command:
default:
execution:
isolation:
thread:
timeoutInMilliseconds: 1500 ---
server:
port: 1006
context-path: /
spring:
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
username: root
password: root
jpa:
hibernate:
ddl-auto: update
show-sql: true
application:
name: microservice-student
profiles: provider-hystrix-1006 eureka:
instance:
hostname: localhost
appname: microservice-student
instance-id: microservice-student:1006
prefer-ip-address: true
client:
service-url:
defaultZone: http://eureka2001.ht.com:2001/eureka/,http://eureka2002.ht.com:2002/eureka/,http://eureka2003.ht.com:2003/eureka/ info:
groupId: com.ht.htSpringCloud
artifactId: microservice-student-provider-hystrix-1006
version: 1.0-SNAPSHOT
userName: http://ht.com
phone: 123456 hystrix:
command:
default:
execution:
isolation:
thread:
timeoutInMilliseconds: 1500

启动类MicroserviceStudentProviderHystrix1005Application 中添加注释

package com.ht.microservicestudentproviderhystrix1005;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient; @EnableCircuitBreaker
@EntityScan(
"com.ht.*.*")
@EnableEurekaClient
@SpringBootApplication
public class MicroserviceStudentProviderHystrix1005Application { public static void main(String[] args) {
SpringApplication.run(MicroserviceStudentProviderHystrix1005Application.class, args);
} }

然后配置启动项的时候多搞几个启动项,这里搞了三个

provider-hystrix-1004
provider-hystrix-1005
provider-hystrix-1006

好了一个hystrix集群服务就搭好了。

修改pom依赖:

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.ht</groupId>
<artifactId>htSpringCloud</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>microservice-student-consumer-hystrix-turbine-91</artifactId> <properties>
<java.version>1.8</java.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>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-turbine</artifactId>
</dependency>

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

配置yml文件

server:
port: 91
context-path: /
eureka:
client:
service-url:
defaultZone: http://eureka2001.ht.com:2001/eureka/,http://eureka2002.ht.com:2002/eureka/,http://eureka2003.ht.com:2003/eureka/
turbine:
app-config: microservice-student # 指定要监控的应用名称
clusterNameExpression: "'default'" #表示集群的名字为default
spring:
application:
name: turbine

给启动类MicroserviceStudentConsumerHystrixTurbine91Application 加注解:@EnableTurbine

package com.ht.microservicestudentconsumerhystrixdashboard90;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
import org.springframework.cloud.netflix.turbine.EnableTurbine;
@SpringBootApplication(exclude={DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
@EnableTurbine
public class MicroserviceStudentConsumerHystrixDashboard90Application { public static void main(String[] args) {
SpringApplication.run(MicroserviceStudentConsumerHystrixDashboard90Application.class, args);
} }

测试:
先启动三个eureka,然后把1004 1005 带hystrix的服务都启动;
microservice-student-consumer-80这个也启动,方便测试;
dashboard,turbine启动;

这样的话 http://localhost/student/hystrix 就能调用服务集群;
http://localhost:91/turbine.stream 可以监控数据,实时ping 返回data

输入http://localhost:90/hystrix进入仪表盘,输入地址,进行实时监控测试


Feign、Hystrix整合之服务熔断服务降级彻底解耦

前面的代码,用@HystrixCommand fallbackMethod是很不好的,因为和业务代码耦合度太高,不利于维护,所以需要解耦,这我们讲下Feign Hystrix整合。

microservice-student-provider-hystrix项目修改
我们不用原先那套。按照正常的逻辑来写;
StudentService加新的接口方法:

/**
* 测试Hystrix服务降级
* @return
*/
public Map<String,Object> hystrix();

StudentServiceImpl实现:

@Override
public Map<String, Object> hystrix() {
Map<String,Object> map=new HashMap<String,Object>();
map.put("code", 200);
map.put("info","工号【"+port+"】正在为您服务");
return map;
}

StudentProviderController正常调用service方法:

/**
* 测试Hystrix服务降级
* @return
* @throws InterruptedException
*/
@ResponseBody
@GetMapping(value="/hystrix")
@HystrixCommand(fallbackMethod="hystrixFallback")
public Map<String,Object> hystrix() throws InterruptedException{
Thread.sleep(2000);
// Map<String,Object> map=new HashMap<String,Object>();
// map.put("code", 200);
// map.put("info","工号【"+port+"】正在为您服务");
return studentService.hystrix();
}

microservice-common项目新建FallbackFactory类,解耦服务熔断服务降级

StudentClientService接口,新增getInfo方法;

/**
* 服务熔断降级
* @return
*/
@GetMapping(value="/student/hystrix")
public Map<String,Object> hystrix();

microservice-common的application.yml加上hystrix支持
hystrix支持

feign:
hystrix:
enabled: true

新建 StudentClientFallbackFactory 类,实现FallbackFactory接口;

package com.ht.microservicestudentproviderhystrix.service;

import com.ht.microservicecommon.StudentClientService;
import com.ht.microservicecommon.entity.Student;
import feign.hystrix.FallbackFactory; import java.util.HashMap;
import java.util.List;
import java.util.Map; public class StudentClientFallbackFactory implements FallbackFactory<StudentClientService> {
@Override
public StudentClientService create(Throwable cause) {
return new StudentClientService() { @Override
public boolean save(Student student) {
return false;
} @Override
public List<Student> list() {
return null;
} @Override
public Map<String, Object> hystrix() {
Map<String,Object> map=new HashMap<String,Object>();
map.put("code", 500);
map.put("info", "系统繁忙,稍后重试");
return map;
} @Override
public Student get(Integer id) {
return null;
} @Override
public boolean delete(Integer id) {
return false;
} @Override
public String ribbon() {
return null;
}
};
}
}

StudentClientService接口的@FeignClient注解加下 fallbackFactory属性

@FeignClient(value="MICROSERVICE-STUDENT",fallbackFactory=StudentClientFallbackFactory.class)

microservice-student-consumer-feign-80修改 支持Hystrix
StudentConsumerFeignController新增方法调用

/**
* Feign整合Hystrix服务熔断降级
* @return
* @throws InterruptedException
*/
@GetMapping(value="/hystrix")
public Map<String,Object> hystrix() throws InterruptedException{
return studentClientService.hystrix();
}
microservice-student-consumer-feign-80启动类中添加注释
package com.ht.microservicestudentconsumerfeign80;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.feign.EnableFeignClients;
import org.springframework.context.annotation.ComponentScan; @EnableEurekaClient
@EnableFeignClients(value
= "com.ht.*.*")
@ComponentScan(basePackages = {"com.ht.microservicecommon.service", "com.ht.microservicestudentconsumerfeign80"})
@SpringBootApplication(exclude={DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
public class MicroserviceStudentConsumerFeign80Application { public static void main(String[] args) {
SpringApplication.run(MicroserviceStudentConsumerFeign80Application.class, args);
} }

集群后超时设置

microservice-common的application.yml加上hystrix支持

这里因为还有一个 feign 也有一个超时时间的设置,当然feign底层是 ribbon的封装,所以 直接配置ribbon,ribbon默认超时也是1秒。

所以这里都是强制要求,ribbon的超时时间要大于hystrix的超时时间,否则 hystrix自定义的超时时间毫无意义。

所以还得microservice-student-consumer-feign-80上加个 ribbon超时时间设置

hystrix:
command:
default:
execution:
isolation:
thread:
timeoutInMilliseconds: 1500

这里因为还有一个 feign 也有一个超时时间的设置,当然feign底层是 ribbon的封装,所以 直接配置ribbon,ribbon默认超时也是1秒。
所以这里都是强制要求,ribbon的超时时间要大于hystrix的超时时间,否则 hystrix自定义的超时时间毫无意义。
所以还得microservice-student-consumer-feign-80上加个 ribbon超时时间设置

ribbon:
ReadTimeout: 10000
ConnectTimeout: 9000

谢谢观看!

SpringCloud之Hystrix集群及集群监控turbine的更多相关文章

  1. java框架之SpringCloud(5)-Hystrix服务熔断、降级与监控

    前言 分布式系统面临的问题 复杂分布式体系结构中的应用程序有数十个依赖关系,每个依赖关系在某些时候将不可避免地失败.不做任何处理的情况下,很容易导致服务雪崩. 服务雪崩:多个微服务之间调用的时候,假设 ...

  2. Hystrix集群及监控turbine

    Hystrix集群及监控turbine 前面Dashboard演示的仅仅是单机服务监控,实际项目基本都是集群,所以这里集群监控用的是turbine. turbine是基于Dashboard的. 先搞个 ...

  3. Spring Cloud第八篇 | Hystrix集群监控Turbine

    ​ 本文是Spring Cloud专栏的第八篇文章,了解前七篇文章内容有助于更好的理解本文: Spring Cloud第一篇 | Spring Cloud前言及其常用组件介绍概览 Spring Clo ...

  4. Hystrix集群及集群监控turbine

    Hystrix集群及监控turbine 前面Dashboard演示的仅仅是单机服务监控,实际项目基本都是集群,所以这里集群监控用的是turbine. turbine是基于Dashboard的. 先搞个 ...

  5. Spring Cloud :断路器集群监控(Turbine)

    一. 简介      上一篇文章我们已经实现了对单个服务实例的监控,当然在实际应用中,单个实例的监控数据没有多大的价值,我们更需要的是一个集群系统的监控信息,这时我们就需要引入Turbine.Turb ...

  6. 【MongoDB】windows平台搭建Mongo数据库复制集(类似集群)(转)

    原文链接:[MongoDB]windows平台搭建Mongo数据库复制集(类似集群)(一) Replica  Sets(复制集)是在mongodDB1.6版本开始新增的功能,它可以实现故障自动切换和自 ...

  7. docker 快速部署ES集群 spark集群

    1) 拉下来 ES集群  spark集群 两套快速部署环境, 并只用docker跑起来,并保存到私库. 2)弄清楚怎么样打包 linux镜像(或者说制作). 3)试着改一下,让它们跑在集群里面. 4) ...

  8. Mongodb副本集+分片集群环境部署记录

    前面详细介绍了mongodb的副本集和分片的原理,这里就不赘述了.下面记录Mongodb副本集+分片集群环境部署过程: MongoDB Sharding Cluster,需要三种角色: Shard S ...

  9. Hadoop集群-HDFS集群中大数据运维常用的命令总结

    Hadoop集群-HDFS集群中大数据运维常用的命令总结 作者:尹正杰 版权声明:原创作品,谢绝转载!否则将追究法律责任. 本篇博客会简单涉及到滚动编辑,融合镜像文件,目录的空间配额等运维操作简介.话 ...

随机推荐

  1. CF468C 【Hack it!】

    构造题果然都非常神仙啊 首先翻译有点问题,\(L, R\)的范围应该为\([1, 10^{200}]\) 由于模数a达到了\(10^{18}\),所以我们可以发现,当\(i<10^{18}\)时 ...

  2. jmeter5实现mysql数据库值提取--单sql提取

    字段背景: 在进行接口测试或者压力测试过程中下文的请求需要用到上文请求的值,除了通过正则表达式的方式外,为了更准确的获得数据库值,我们可以直接从数据库提取 一.如何实现数据库的连接.此处不再赘述 点击 ...

  3. JavaScript中class类的介绍

    class的概念 一.我们为什么要用到class类? 因为通过class类来创建对象,使得开发者不必写重复的代码,以达到代码复用的目的.它基于的逻辑是,两个或多个对象的结构功能类似,可以抽象出一个模板 ...

  4. [Beta]第四次 Scrum Meeting

    [Beta]第四次 Scrum Meeting 写在前面 会议时间 会议时长 会议地点 2019/5/12 22:00 30min 大运村公寓6F楼道 附Github仓库:WEDO 例会照片 工作情况 ...

  5. 第07组 Alpha事后诸葛亮

    1.请在博客开头给出组长博客链接(3.1 2分) 团队:摇光 队长:杨明哲 组长博客:这里 2.参考邹欣老师的问题模板进行总结思考(3.2 27分) 设想和目标(2分) 1.我们的软件要解决什么问题? ...

  6. 剑指offer:孩子们的游戏(圆圈中最后剩下的数)

    题目描述: 每年六一儿童节,牛客都会准备一些小礼物去看望孤儿院的小朋友,今年亦是如此.HF作为牛客的资深元老,自然也准备了一些小游戏.其中,有个游戏是这样的:首先,让小朋友们围成一个大圈.然后,他随机 ...

  7. Python语言编写BP神经网络

    Python语言编写BP神经网络 2016年10月31日 16:42:44 ldy944758217 阅读数 3135   人工神经网络是一种经典的机器学习模型,随着深度学习的发展神经网络模型日益完善 ...

  8. java 465端口发送邮件

    package com.fr.function; import java.io.IOException; import java.security.Security; import java.util ...

  9. 微信小程序实例:分享给一个人还是分享到群的判断代码

    微信小程序的分享功能,在最新版库的ide上已经不能拿到分享回调了,官方api也删除了对应的回调函数,看样子是砍掉了,不过真机测试还是可以的,话不多说,上代码: /* // 分享功能回调 onLoad: ...

  10. odoo开发笔记--ValueError Expected singleton

    异常处理参考:https://stackoverflow.com/questions/31070640/valueerror-expected-singleton-odoo8 报错: ValueErr ...