解决服务启动报错:org.apache.dubbo.remoting.RemotingException: client(url: dubbo://192.168.1.137:20880问题

报错如下:

org.apache.dubbo.remoting.RemotingException: client(url: dubbo://192.168.1.137:20880/org.springframework.cloud.alibaba.dubbo.service.DubboMetadataService?anyhost=true&application=south-db-service&bind.ip=192.168.1.137&bind.port=20880&check=false&codec=dubbo&default.delay=-1&default.deprecated=false&default.dynamic=false&default.lazy=false&default.register=true&default.sticky=false&default.timeout=6000&deprecated=false&dubbo=2.0.2&dynamic=false&generic=true&group=aep&heartbeat=60000&interface=org.springframework.cloud.alibaba.dubbo.service.DubboMetadataService&lazy=false&methods=getAllServiceKeys,getServiceRestMetadata,getExportedURLs,getAllExportedURLs&pid=7956&qos.enable=true&qos.port=10580®ister=true®ister.ip=172.10.1.39&release=2.7.1&remote.application=aep&remote.timestamp=1597894394745&revision=0.9.0.RELEASE&side=consumer&sticky=false×tamp=1597917712415&version=1.0.0) failed to connect to server /192.168.1.137:20880 client-side timeout 3000ms (elapsed: 3004ms) from netty client 172.10.1.39 using dubbo version 2.7.1
at org.apache.dubbo.remoting.transport.netty4.NettyClient.doConnect(NettyClient.java:136)

排查问题:
   发现了“Failed to start NettyClient /172.10.1.39 connect to the server /192.168.1.137:20880”这段日志,里面有个ip:192.168.1.137引起了我的注意,因为该ip并不是我的ip也不是nacos服务器的ip。

经过排查发现nacos上面已经启动了一个aep服务,该服务的ip的正好是192.168.1.137。我尝试着在nacos中将该服务下线,然后重启db服务,启动成功了!

分析:
   问题出现的原因可能是aep服务订阅了db服务,也就是provider(提供者)服务启动在cosumer(消费)服务之后,会出现该问题

解决:
    将已经存在的consumer(消费)服务下线,启动provider(提供者)服务之后再启动consumer服务

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