studyyun opened a new issue #9605: URL: https://github.com/apache/dubbo/issues/9605
<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy --> - [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate. ## 环境  **/etc/hosts文件里面配置了：外网IP 机器的hostname** **dubbo：2.7.8** ## 提供者 配置：dubbo.protocol.host=云服务器外网IP地址 相关nacos依赖：  ## 报错信息 **PS：xxx.xx.xxx.xx为服务器外网的IP地址** 2022-01-21 15:20:44.066 ERROR 294076 --- [ main] o.s.boot.SpringApplication : Application run failed org.apache.dubbo.rpc.RpcException: Fail to start server(url: dubbo://xxx.xx.xxx.xx:20880/com.dubbo.demo.service.HelloService?anyhost=false&application=provider-service&bind.ip=xxx.xx.xxx.xx&bind.port=20880&channel.readonly.sent=true&codec=dubbo&deprecated=false&dubbo=2.0.2&dynamic=true&generic=false&heartbeat=60000&interface=com.dubbo.demo.service.HelloService&metadata-type=remote&methods=sayHello,noticeMsg,sayHi,addListener&pid=294076&qos.enable=false&release=2.7.8&revision=1.0-SNAPSHOT&side=provider×tamp=1642749643629&version=2.0.0) Failed to bind NettyServer on /xxx.xx.xxx.xx:20880, cause: Cannot assign requested address at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:348) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.openServer(DubboProtocol.java:320) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.export(DubboProtocol.java:303) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:64) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:155) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:66) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.registry.integration.RegistryProtocol.lambda$doLocalExport$2(RegistryProtocol.java:255) ~[dubbo-2.7.8.jar!/:2.7.8] at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_161] at org.apache.dubbo.registry.integration.RegistryProtocol.doLocalExport(RegistryProtocol.java:253) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:205) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:62) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:153) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:64) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:492) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:325) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:300) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.config.ServiceConfig.export(ServiceConfig.java:206) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.config.bootstrap.DubboBootstrap.lambda$exportServices$15(DubboBootstrap.java:1103) ~[dubbo-2.7.8.jar!/:2.7.8] at java.util.HashMap$Values.forEach(HashMap.java:981) ~[na:1.8.0_161] at org.apache.dubbo.config.bootstrap.DubboBootstrap.exportServices(DubboBootstrap.java:1090) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.config.bootstrap.DubboBootstrap.start(DubboBootstrap.java:901) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.onContextRefreshedEvent(DubboBootstrapApplicationListener.java:59) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.onApplicationContextEvent(DubboBootstrapApplicationListener.java:52) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.config.spring.context.OneTimeExecutionApplicationContextEventListener.onApplicationEvent(OneTimeExecutionApplicationContextEventListener.java:40) ~[dubbo-2.7.8.jar!/:2.7.8] at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.2.5.RELEASE.jar!/:5.2.5.RELEASE] at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.2.5.RELEASE.jar!/:5.2.5.RELEASE] at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.2.5.RELEASE.jar!/:5.2.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:403) ~[spring-context-5.2.5.RELEASE.jar!/:5.2.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:360) ~[spring-context-5.2.5.RELEASE.jar!/:5.2.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:897) ~[spring-context-5.2.5.RELEASE.jar!/:5.2.5.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:162) ~[spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553) ~[spring-context-5.2.5.RELEASE.jar!/:5.2.5.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.6.RELEASE.jar!/:2.2.6.RELEASE] at com.dubbo.provider.ProviderApplication.main(ProviderApplication.java:18) [classes!/:1.0-SNAPSHOT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161] at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [provider-1.0-SNAPSHOT.jar:1.0-SNAPSHOT] at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [provider-1.0-SNAPSHOT.jar:1.0-SNAPSHOT] at org.springframework.boot.loader.Launcher.launch(Launcher.java:51) [provider-1.0-SNAPSHOT.jar:1.0-SNAPSHOT] at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:52) [provider-1.0-SNAPSHOT.jar:1.0-SNAPSHOT] Caused by: org.apache.dubbo.remoting.RemotingException: Failed to bind NettyServer on /xxx.xx.xxx.xx:20880, cause: Cannot assign requested address at org.apache.dubbo.remoting.transport.AbstractServer.<init>(AbstractServer.java:77) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.remoting.transport.netty4.NettyServer.<init>(NettyServer.java:77) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.remoting.transport.netty4.NettyTransporter.bind(NettyTransporter.java:35) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.remoting.Transporter$Adaptive.bind(Transporter$Adaptive.java) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.remoting.Transporters.bind(Transporters.java:56) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.remoting.exchange.support.header.HeaderExchanger.bind(HeaderExchanger.java:44) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.remoting.exchange.Exchangers.bind(Exchangers.java:70) ~[dubbo-2.7.8.jar!/:2.7.8] at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:346) ~[dubbo-2.7.8.jar!/:2.7.8] ... 48 common frames omitted Caused by: java.net.BindException: Cannot assign requested address at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_161] at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_161] at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_161] at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.8.0_161] at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:134) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:550) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1334) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:506) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:491) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:973) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:248) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:356) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-all-4.1.48.Final.jar!/:4.1.48.Final] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_161] ## 疑问 要怎样才能实现将dubbo提供者的外网地址注册到nacos中，使用配置项dubbo.protocol.host报错 -- This is an automated message from the Apache Git Service. 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