Eureka Server 实现在线扩容( 二 ) _生活百科

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通过浏览器再次访问：http://localhost:8761/，出现两个实例

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在线扩充到三个 Eureka 实例同理，维持上述运行实例，先不要做任何重启动作，修改 eureka-client.yml 配置，让客户端感知到三个实例

server:port: 8081spring:application:name: eureka-client1eureka:client:serviceUrl:defaultZone: http://localhost:8761/eureka/,http://localhost:8762/eureka/,http://localhost:8763/eureka/

修改 peer1 的配置

server:port: 8761spring:application:name: eureka-servereureka:instance:hostname: localhostpreferIpAddress: trueclient:registerWithEureka: truefetchRegistry: trueserviceUrl:defaultZone: http://localhost:8762/eureka/,http://localhost:8763/eureka/server:waitTimeInMsWhenSyncEmpty: 0enableSelfPreservation: false

使得 peer1 可以感知到另外两个实例，同理，修改 peer2 实例配置

server:port: 8762eureka:instance:hostname: localhostpreferIpAddress: trueclient:registerWithEureka: truefetchRegistry: trueserviceUrl:defaultZone: http://localhost:8761/eureka/,http://localhost:8763/eureka/server:waitTimeInMsWhenSyncEmpty: 0enableSelfPreservation: false

修改 peer3 实例配置

server:port: 8763eureka:instance:hostname: localhostpreferIpAddress: trueclient:registerWithEureka: truefetchRegistry: trueserviceUrl:defaultZone: http://localhost:8761/eureka/,http://localhost:8762/eureka/server:waitTimeInMsWhenSyncEmpty: 0enableSelfPreservation: false

接下来，重启配置中，即 config 模块
然后，启动第三个实例，profile 指定 peer3