尤里卡同行没有同步

Question

我正在为一组Spring Cloud + Netflix OSS应用程序进行原型设计,并且遇到了Eureka的问题.在我们的设置中,我们有一个Spring Cloud Config Server + Eureka Server,然后是2个模块,它们利用该服务器组件进行自举和服务发现.

我遇到的问题是,如果我旋转起来尤里卡服务器的两个实例,并尝试将二者进行配对(基于两个对等感知尤里卡服务器中的文档),他们不相互同步.请参阅下面的配置和/或GitHub上的代码.

从本质上讲,Peer1启动并且看起来很好.Peer2将启动并且看起来很好,两个同行在服务中互相展示.但是,如果"UserService"模块旋转并向Peer1注册自身,Peer2将永远不会看到它.如果我们然后启动指向Peer2的"Web"模块,它就永远无法解析UserService.他们基本上是孤立地行事.

我已尝试过serviceUrl在服务器和Eureka服务器实例上设置两者的几种组合,但无济于事.我只是配错了吗？

对等1 /默认配置:

server:
  port: 8888

eureka:
  dashboard:
    path: /dashboard
  instance:
    hostname: peer1
    leaseRenewalIntervalInSeconds: 3
  client:
      serviceUrl:
          defaultZone: ${eureka.server.serviceUrl:http://localhost:${server.port}/eureka/}
  server:
    serviceUrl:
        defaultZone: http://localhost:${server.port}/eureka/
        peer2: http://peer2/eureka/
    waitTimeInMsWhenSyncEmpty: 0


spring:
  application:
    name: demo-config-service
  profiles:
    active: native
  # required for Spring Cloud Bus
  rabbitmq:
    host: ${DOCKER_IP:192.168.59.103}
    port: 5672
    username: guest
    password: guest
    virtualHost: /
  cloud:
    config:
      server:
        prefix: /configs
        native:
          searchLocations: /Users/dave/workspace/oss/distributed-spring/modules/config-server/src/main/resources/testConfigs
#        git :
#          uri: https://github.com/joshlong/microservices-lab-configuration

对等2配置:

server:
  port: 8889

eureka:
  dashboard:
    path: /dashboard
  instance:
    hostname: peer2
    leaseRenewalIntervalInSeconds: 3
  client:
      serviceUrl:
          defaultZone: ${eureka.server.serviceUrl:http://localhost:${server.port}/eureka/}
  server:
    serviceUrl:
        defaultZone: http://localhost:8888/eureka/
        peer1: http://peer1/eureka/
    waitTimeInMsWhenSyncEmpty: 0


spring:
  application:
    name: demo-config-service
  profiles:
    active: native
  # required for Spring Cloud Bus
  rabbitmq:
    host: ${DOCKER_IP:192.168.59.103}
    port: 5672
    username: guest
    password: guest
    virtualHost: /
  cloud:
    config:
      server:
        prefix: /configs
        native:
          searchLocations: /Users/dave/workspace/oss/distributed-spring/modules/config-server/src/main/resources/testConfigs
#        git :
#          uri: https://github.com/joshlong/microservices-lab-configuration

Answer 1

有一些问题.如defaultZone文档中所述,需要位于客户端部分.该defaultZoneURL需要的端口.

/ etc/hosts文件

127.0.0.1       peer1
127.0.0.1       peer2

对等1配置(部分)

eureka:
  instance:
    hostname: peer1
    leaseRenewalIntervalInSeconds: 3
  client:
    serviceUrl:
      defaultZone: http://peer2:8889/eureka/

对等2配置(部分)

eureka:
  dashboard:
    path: /dashboard
  instance:
    hostname: peer2
    leaseRenewalIntervalInSeconds: 3
  client:
    serviceUrl:
      defaultZone: http://peer1:8888/eureka/
  server:
    waitTimeInMsWhenSyncEmpty: 0

用户服务配置(部分)配置端口错误.

spring:
  application:
    name: user-service
  cloud:
    config:
      uri: http://localhost:8888/configs

您可以看到已将用户服务复制到peer1和peer2.如果您愿意,我可以将PR发布到您的代码中.

同行1

同行2