SpringCloud（三） eureka集群-蒲公英云

SpringCloud（三） eureka集群

Dear 丶 2022-05-23 03:36 292阅读 0赞

根据 SpringCloud（一） eureka服务注册与发现，再增加两个eureka server

Eureka Server的高可用

Eureka Server的设计一开始就考虑到了高可用的问题，在Eureka的服务治理设计中，所有节点即是服务提供方，也是服务消费方，服务注册也不列外。之前的有配置：
eureka:
client:
register-with-eureka: false
fetch-registry: false
让服务注册中心不注册自己。Eureka Server的高可用实际上就是将自己作为服务向其他服务注册中心注册自己，这样就可以形成一组互相注册的服务注册中心，以实现服务清单的互相同步，达到高可用的效果。

因为在一台机器上部署，修改hosts

127.0.0.1       localhost1
127.0.0.1       localhost2
127.0.0.1       localhost3

eureka-server1配置文件：

server:
  port: 8761
eureka:
  instance:
    hostname: localhost1
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://localhost2:8762/eureka,http://localhost3:8763/eureka
spring:
  application:
    name: eureka-server1

eureka-server2配置文件：

server:
  port: 8762
eureka:
  instance:
    hostname: localhost2
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://localhost1:8761/eureka,http://localhost3:8763/eureka
spring:
  application:
    name: eureka-server2

eureka-server3配置文件：

server:
  port: 8763
eureka:
  instance:
    hostname: localhost3
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://localhost1:8761/eureka,http://localhost2:8762/eureka
spring:
  application:
    name: eureka-server3

eureka-client spring配置文件：

server:
  port: 8080
eureka:
  client:
    service-url:
      defaultZone: http://localhost1:8761/eureka,http://localhost2:8762/eureka,http://localhost3:8763/eureka
spring:
  application:
    name: eureka-client1