我们的生产环境dubbo服务出现了重大问题:求各位大神帮忙解决下。具体异常信息日志如下 80C

问题描述:
部署在测试环境上的dubbo服务,有时候会自动down掉,别人调用不了,但是我们人为没有动过它。这种出现概率平均1-2天发生1次,不知道什么原因引起的。目前还解决不了。如果到线上还这样,会影响公司的交易量的,很危险。
看了下日志报错是这样的:
1:客户端调用方的日志:
com.alibaba.dubbo.rpc.RpcException: Forbid consumer 192.168.18.86 access service com.niiwoo.rce.service.RCEComputeService from registry 192.168.18.86:2181 use dubbo version 2.8.4, Please check registry access list (whitelist/blacklist).
at com.alibaba.dubbo.registry.integration.RegistryDirectory.doList(RegistryDirectory.java:579)
at com.alibaba.dubbo.rpc.cluster.directory.AbstractDirectory.list(AbstractDirectory.java:73)
at com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker.list(AbstractClusterInvoker.java:260)
at com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker.invoke(AbstractClusterInvoker.java:219)
at com.alibaba.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker.invoke(MockClusterInvoker.java:72)
at com.alibaba.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:52)
at com.alibaba.dubbo.common.bytecode.proxy0.updateVariable(proxy0.java)
at com.tianchengsys.rdp.dubbo.consumer.service.imp.VariableServiceImpl.updateVariable(VariableServiceImpl.java:30)
at com.tianchengsys.rdp.service.impl.McsVariableServiceImpl.updateVariable(McsVariableServiceImpl.java:108)
at com.tianchengsys.rdp.service.impl.McsVariableServiceImpl$$FastClassBySpringCGLIB$$fbc6f996.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:708)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644)
at com.tianchengsys.rdp.service.impl.McsVariableServiceImpl$$EnhancerBySpringCGLIB$$fef2ce11.updateVariable()
at com.tianchengsys.rdp.service.impl.McsVariableServiceImpl$$FastClassBySpringCGLIB$$fbc6f996.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:708)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644)
at com.tianchengsys.rdp.service.impl.McsVariableServiceImpl$$EnhancerBySpringCGLIB$$9282b9c7.updateVariable()
at com.tianchengsys.rdp.web.controller.mcs2.McsVariableController.edit(McsVariableController.java:289)
at com.tianchengsys.rdp.web.controller.mcs2.McsVariableController$$FastClassBySpringCGLIB$$e5da7779.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:708)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor$1.proceed(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:82)
at org.apache.shiro.authz.aop.AuthorizingMethodInterceptor.invoke(AuthorizingMethodInterceptor.java:39)
at org.apache.shiro.spring.security.interceptor.AopAllianceAnnotationsAuthorizingMethodInterceptor.invoke(AopAllianceAnnotationsAuthorizingMethodInterceptor.java:115)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644)

2:dubbo服务相关日志
2017-11-11 07:26:35,994 [main-SendThread(192.168.18.86:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:1096) - Client session timed out, have not heard from server in 40281ms for sessionid 0x45f95de2d891148, closing socket connection and attempting reconnect
2017-11-11 07:26:52,703 [main-SendThread(192.168.18.90:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:975) - Opening socket connection to server 192.168.18.90/192.168.18.90:2181. Will not attempt to authenticate using SASL (unknown error)
2017-11-11 07:27:03,752 [main-SendThread(192.168.18.90:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:852) - Socket connection established to 192.168.18.90/192.168.18.90:2181, initiating session
2017-11-11 07:29:21,928 [main-SendThread(192.168.18.90:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:1096) - Client session timed out, have not heard from server in 149223ms for sessionid 0x45f95de2d891148, closing socket connection and attempting reconnect
2017-11-11 07:29:55,024 [main-SendThread(192.168.18.89:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:975) - Opening socket connection to server 192.168.18.89/192.168.18.89:2181. Will not attempt to authenticate using SASL (unknown error)
2017-11-11 07:29:55,025 [main-SendThread(192.168.18.89:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:852) - Socket connection established to 192.168.18.89/192.168.18.89:2181, initiating session
2017-11-11 07:29:55,448 [main-SendThread(192.168.18.89:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:1094) - Unable to reconnect to ZooKeeper service, session 0x45f95de2d891148 has expired, closing socket connection
2017-11-11 07:30:31,361 [main-SendThread(192.168.18.90:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:975) - Opening socket connection to server 192.168.18.90/192.168.18.90:2181. Will not attempt to authenticate using SASL (unknown error)
2017-11-11 07:30:31,362 [main-SendThread(192.168.18.90:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:852) - Socket connection established to 192.168.18.90/192.168.18.90:2181, initiating session
2017-11-11 07:30:31,777 [main-SendThread(192.168.18.90:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:1235) - Session establishment complete on server 192.168.18.90/192.168.18.90:2181, sessionid = 0x35e93bd6a5cbc61, negotiated timeout = 60000
2017-11-11 07:31:41,632 [main-SendThread(192.168.18.90:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:1096) - Client session timed out, have not heard from server in 41620ms for sessionid 0x35e93bd6a5cbc61, closing socket connection and attempting reconnect
2017-11-11 07:31:58,063 [main-SendThread(192.168.18.86:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:975) - Opening socket connection to server 192.168.18.86/192.168.18.86:2181. Will not attempt to authenticate using SASL (unknown error)
2017-11-11 07:32:05,662 [main-SendThread(192.168.18.86:2181)] INFO org.apache.zookeeper.ClientCnxn$SendThread (ClientCnxn.java:852) - Socket connection established to 192.168.18.86/192.168.18.86:2181, initiating session

9个回答

没有遇到过这种问题,看日志很可能是网络超时的原因。

还有一种可能,调用服务时,连接一直阻塞,然后连接大量增加的情况下,直接让服务宕掉,这个是由于dubbo没有熔断机制的原因造成的
建议你监测一下你的服务那边的内存情况以及线程情况。

RPC调用有问题, 网络连接也超时,确定一下你的网络状态,与你配置的ip与端口信息。及防火墙配置

网络超时,可能与外部网络有关系。配置文件配置成超时后无限重连

日志里session认证失败,做个联通测试,监测一天吧

我们模拟了下网络io问题,不断对大数据服务进行压力访问,机器上网络读写达到了 76m/s;然后再不断发送请求到dubbo服务上,
发现时没有问题的

检测系统我们这边是没有的

你的dubbo服务down掉没有错误日志吗?能具体说清楚一下吗,是进程直dead了吗

去年在项目开发中遇到了这个问题 结果是web层跟dataservice层的dubbo版本不一致导致的 当时都快疯掉了

就是两边dubbo版本不一样

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Caused by: com.alibaba.dubbo.remoting.RemotingException: message can not send, because channel is closed . url:dubbo://192.168.17.71:21954/com.tw.ei.business.agent.service.ReqBuinessAgentService?anyhost=true&application=consumer-engine&check=false&codec=dubbo&default.timeout=120000&dubbo=2.4.10&heartbeat=60000&interface=com.tw.ei.business.agent.service.ReqBuinessAgentService&methods=execute&pid=27587&retries=0&revision=reqappservice&side=consumer&timestamp=1399973540550&version=1.0.0 at com.alibaba.dubbo.remoting.transport.AbstractClient.send(AbstractClient.java:268) at com.alibaba.dubbo.remoting.transport.AbstractPeer.send(AbstractPeer.java:51) at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeChannel.request(HeaderExchangeChannel.java:112) at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeClient.request(HeaderExchangeClient.java:91) at com.alibaba.dubbo.rpc.protocol.dubbo.ReferenceCountExchangeClient.request(ReferenceCountExchangeClient.java:81) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboInvoker.doInvoke(DubboInvoker.java:96) at com.alibaba.dubbo.rpc.protocol.AbstractInvoker.invoke(AbstractInvoker.java:144) at com.alibaba.dubbo.rpc.listener.ListenerInvokerWrapper.invoke(ListenerInvokerWrapper.java:74) at com.alibaba.dubbo.rpc.protocol.dubbo.filter.FutureFilter.invoke(FutureFilter.java:53) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:75) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.filter.ConsumerContextFilter.invoke(ConsumerContextFilter.java:48) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:53) at com.alibaba.dubbo.rpc.cluster.support.FailoverClusterInvoker.doInvoke(FailoverClusterInvoker.java:77) ... 10 more

DUBBO启动报错找不到服务

ERROR 10:16:41,178 AbstractClient:<init> - [DUBBO] Failed to start NettyClient caedmon-PC/192.168.0.234 connect to the server /60.191.124.236:21890 (check == false, ignore and retry later!), cause: client(url: dubbo://60.191.124.236:21890/com.sendinfo.ebiz3.account.server.UserServer?anyhost=true&application=wuzhen-b2c-provider&check=false&codec=dubbo&default.check=false&default.retries=0&default.timeout=20000&dubbo=2.5.3&heartbeat=60000&interface=com.sendinfo.ebiz3.account.server.UserServer&methods=queryConsumerPointVo,updateAccount,queryConsumer,updateLogin,loginOut,getLogin,regConsumer,getAccount,queryLogin,updateConsumer&pid=6212&side=consumer&timeout=5000&timestamp=1425544252633) failed to connect to server /60.191.124.236:21890 client-side timeout 3000ms (elapsed: 3003ms) from netty client 192.168.0.234 using dubbo version 2.5.3, dubbo version: 2.5.3, current host: 192.168.0.234 com.alibaba.dubbo.remoting.RemotingException: client(url: dubbo://60.191.124.236:21890/com.sendinfo.ebiz3.account.server.UserServer?anyhost=true&application=wuzhen-b2c-provider&check=false&codec=dubbo&default.check=false&default.retries=0&default.timeout=20000&dubbo=2.5.3&heartbeat=60000&interface=com.sendinfo.ebiz3.account.server.UserServer&methods=queryConsumerPointVo,updateAccount,queryConsumer,updateLogin,loginOut,getLogin,regConsumer,getAccount,queryLogin,updateConsumer&pid=6212&side=consumer&timeout=5000&timestamp=1425544252633) failed to connect to server /60.191.124.236:21890 client-side timeout 3000ms (elapsed: 3003ms) from netty client 192.168.0.234 using dubbo version 2.5.3 at com.alibaba.dubbo.remoting.transport.netty.NettyClient.doConnect(NettyClient.java:127) at com.alibaba.dubbo.remoting.transport.AbstractClient.connect(AbstractClient.java:280) at com.alibaba.dubbo.remoting.transport.AbstractClient.<init>(AbstractClient.java:103) at com.alibaba.dubbo.remoting.transport.netty.NettyClient.<init>(NettyClient.java:61) at com.alibaba.dubbo.remoting.transport.netty.NettyTransporter.connect(NettyTransporter.java:37) at com.alibaba.dubbo.remoting.Transporter$Adpative.connect(Transporter$Adpative.java) at com.alibaba.dubbo.remoting.Transporters.connect(Transporters.java:67) at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchanger.connect(HeaderExchanger.java:37) at com.alibaba.dubbo.remoting.exchange.Exchangers.connect(Exchangers.java:102) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.initClient(DubboProtocol.java:378) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.getSharedClient(DubboProtocol.java:344) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.getClients(DubboProtocol.java:321) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.refer(DubboProtocol.java:303) at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.refer(ProtocolListenerWrapper.java:65) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.refer(ProtocolFilterWrapper.java:62) at com.alibaba.dubbo.rpc.Protocol$Adpative.refer(Protocol$Adpative.java) at com.alibaba.dubbo.registry.integration.RegistryDirectory.toInvokers(RegistryDirectory.java:395) at com.alibaba.dubbo.registry.integration.RegistryDirectory.refreshInvoker(RegistryDirectory.java:224) at com.alibaba.dubbo.registry.integration.RegistryDirectory.notify(RegistryDirectory.java:195) at com.alibaba.dubbo.registry.support.AbstractRegistry.notify(AbstractRegistry.java:449) at com.alibaba.dubbo.registry.support.FailbackRegistry.doNotify(FailbackRegistry.java:273) at com.alibaba.dubbo.registry.support.FailbackRegistry.notify(FailbackRegistry.java:259) at com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry.access$400(ZookeeperRegistry.java:45) at com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry$3.childChanged(ZookeeperRegistry.java:159) at com.alibaba.dubbo.remoting.zookeeper.zkclient.ZkclientZookeeperClient$2.handleChildChange(ZkclientZookeeperClient.java:82) at org.I0Itec.zkclient.ZkClient$8.run(ZkClient.java:583) at org.I0Itec.zkclient.ZkEventThread.run(ZkEventThread.java:71)

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org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) 检查了好久没找到问题的根源,请问大家遇到这种问题是怎么解决的

dubbo:Failed to invoke the method queryByProperty

com.alibaba.dubbo.rpc.RpcException: **Failed to invoke the method **queryByProperty in the service com.cmcf.mobile.ws.interfaces.piece.IPieceInterface. **No provider available for the service** com.cmcf.mobile.ws.interfaces.piece.IPieceInterface:0.0.0 from registry 192.168.83.60:2181 on the consumer 192.168.83.60 using the dubbo version 2.5.3. Please check if the providers have been started and registered. ----------------------------------------- 如上错误,zookeeper服务在linux上,在本地项目和linux测试环境上的项目都是连接到这个zookeeper,现在本地项目可以运行,但是测试环境上的项目却显示没有服务。端口都已开放,本地环境可以运行所以代码没有问题,之前在linux上也运行过,所以配置整体上也基本没问题。但是偶尔在测试环境上重启tomcat就出现这个问题。求大神赐教。

com.alibaba.dubbo.rpc.RpcException错误求解?

com.alibaba.dubbo.rpc.RpcException: Failed to invoke remote service: interface com.xunfang.cems.core.service.SysEmailService, method: findPwdSendEmail, cause: 500: java.net.SocketTimeoutException: Read timed out 这个错误怎么解决 实现发送邮件功能出错 邮件能发送成功,但是报错。 页面报的错是:http://localhost:8080/cems-webapp/login/send-email?account=admin&receiver=xxxx@xxxxx.com&_=1474937568555 找不到这个地址? 框架用的是springmvc

Failed to bind properties under 'spring.dubbo.protocol' to com.alibaba.dubbo.config.ProtocolConfig:

SpringBoot2.1.3 + Dubbo ``` Description: Failed to bind properties under 'spring.dubbo.protocol' to com.alibaba.dubbo.config.ProtocolConfig: Reason: com.alibaba.dubbo.config.ApplicationConfig.setQosEnable(Ljava/lang/Boolean;)V ``` ![图片说明](https://img-ask.csdn.net/upload/201902/26/1551114522_213100.png) ![图片说明](https://img-ask.csdn.net/upload/201902/26/1551114544_98469.png) 有没有遇到这个问题的朋友,还请告知该如何解决,谢谢 !!!

dubbo服务调用报错,哪位大神知道这是什么错误

Caused by: com.alibaba.com.caucho.hessian.io.HessianProtocolException: 'org.springframework.beans.factory.NoUniqueBeanDefinitionException' could not be instantiated at com.alibaba.com.caucho.hessian.io.JavaDeserializer.instantiate(JavaDeserializer.java:275) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.com.caucho.hessian.io.JavaDeserializer.readObject(JavaDeserializer.java:155) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.com.caucho.hessian.io.Hessian2Input.readObjectInstance(Hessian2Input.java:2067) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1592) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.com.caucho.hessian.io.Hessian2Input.readObject(Hessian2Input.java:1576) ~[dubbo-2.8.4.jar:2.8.4] at com.alibaba.com.caucho.hessian.io.JavaDeserializer$ObjectFieldDeserializer.deserialize(JavaDeserializer.java:396) ~[dubbo-2.8.4.jar:2.8.4] ... 27 common frames omitted Caused by: java.lang.reflect.InvocationTargetException: null at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_191] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_191] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_191] at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_191] at com.alibaba.com.caucho.hessian.io.JavaDeserializer.instantiate(JavaDeserializer.java:271) ~[dubbo-2.8.4.jar:2.8.4] ... 32 common frames omitted Caused by: java.lang.NullPointerException: null at java.util.Objects.requireNonNull(Objects.java:203) ~[na:1.8.0_191] at java.util.Arrays$ArrayList.<init>(Arrays.java:3813) ~[na:1.8.0_191] at java.util.Arrays.asList(Arrays.java:3800) ~[na:1.8.0_191] at org.springframework.beans.factory.NoUniqueBeanDefinitionException.<init>(NoUniqueBeanDefinitionException.java:65) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] ... 37 common frames omitted ``` ```

建的dubbo项目找不到dubbo:application,是什么原因

新建分布式dubbo的maven项目,pom.xml报错,不知道什么原因,求各位大佬帮忙看看!谢谢了! <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <dubbo:application name="taotao-manager" />//报错位置一: <dubbo:registry protocol="zookeeper" address="192.168.25.128:2181" />//报错位置二: <dubbo:protocol name="dubbo" port="20880" />//报错位置三: 报了错误; ![图片说明](https://img-ask.csdn.net/upload/201812/02/1543751065_758870.jpg) 第一个报错: Multiple annotations found at this line: - cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'dubbo:application'. - schema_reference.4: Failed to read schema document 'http://code.alibabatech.com/schema/dubbo/dubbo.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. 第二个报错: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'dubbo:registry'. 第三个报错: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'dubbo:protocol'.

启动tomcat 报dubbo端口号冲突

启动tomcat ,同时会报下面的错误 14:56:08.607 [localhost-startStop-1] ERROR o.s.web.context.ContextLoader - Context initialization failed com.alibaba.dubbo.rpc.RpcException: Fail to start server(url: dubbo://172.16.0.62:21889/com.winit.sms.spi.base.customeracct.CustomerAcctService?anyhost=true&application=sms&channel.readonly.sent=true&codec=dubbo&default.cluster=failover&default.executes=500&default.loadbalance=random&default.retries=0&default.service.filter=dubboProviderFilter&default.timeout=60000&default.validation=true&dispatcher=all&dubbo=2.8.3&dynamic=true&generic=false&heartbeat=60000&interface=com.winit.sms.spi.base.customeracct.CustomerAcctService&methods=queryCustomerAcctById,queryCustomerAcctByBpartnerCode,createCustomerAcct,pageCustomerAcct,modifyCustomerAcct&organization=winit&owner=liuyan.chen&pid=14588&revision=1.21.6.NewWorldPhase2.SNAPSHOT&side=provider&threadpool=limited&threads=300&timestamp=1453791368562&version=5.0.0) Failed to bind NettyServer on /172.16.0.62:21889, cause: Failed to bind to: /0.0.0.0:21889 at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:331) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.openServer(DubboProtocol.java:308) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.export(DubboProtocol.java:258) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:55) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:56) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.rpc.Protocol$Adpative.export(Protocol$Adpative.java) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.registry.integration.RegistryProtocol.doLocalExport(RegistryProtocol.java:153) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:107) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:53) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:54) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.rpc.Protocol$Adpative.export(Protocol$Adpative.java) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:489) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:285) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:246) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.config.ServiceConfig.export(ServiceConfig.java:145) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:109) ~[dubbo-2.8.3.jar:2.8.3] at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:96) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:334) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:948) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:410) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) [spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5003) [catalina.jar:7.0.65] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5517) [catalina.jar:7.0.65] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:7.0.65] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) [catalina.jar:7.0.65] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) [catalina.jar:7.0.65] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652) [catalina.jar:7.0.65] at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1263) [catalina.jar:7.0.65] at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1978) [catalina.jar:7.0.65] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [na:1.7.0_80] at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_80] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_80] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_80] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_80] Caused by: com.alibaba.dubbo.remoting.RemotingException: Failed to bind NettyServer on /172.16.0.62:21889, cause: Failed to bind to: /0.0.0.0:21889 at com.alibaba.dubbo.remoting.transport.AbstractServer.<init>(AbstractServer.java:72) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.remoting.transport.netty.NettyServer.<init>(NettyServer.java:63) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.remoting.transport.netty.NettyTransporter.bind(NettyTransporter.java:33) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.remoting.Transporter$Adpative.bind(Transporter$Adpative.java) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.remoting.Transporters.bind(Transporters.java:48) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchanger.bind(HeaderExchanger.java:41) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.remoting.exchange.Exchangers.bind(Exchangers.java:63) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:329) ~[dubbo-2.8.3.jar:2.8.3] ... 35 common frames omitted Caused by: org.jboss.netty.channel.ChannelException: Failed to bind to: /0.0.0.0:21889 at org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:303) ~[netty-3.2.5.Final.jar:na] at com.alibaba.dubbo.remoting.transport.netty.NettyServer.doOpen(NettyServer.java:94) ~[dubbo-2.8.3.jar:2.8.3] at com.alibaba.dubbo.remoting.transport.AbstractServer.<init>(AbstractServer.java:67) ~[dubbo-2.8.3.jar:2.8.3] ... 42 common frames omitted Caused by: java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) ~[na:1.7.0_80] at sun.nio.ch.Net.bind(Net.java:463) ~[na:1.7.0_80] at sun.nio.ch.Net.bind(Net.java:455) ~[na:1.7.0_80] at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.7.0_80] at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.7.0_80] at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.bind(NioServerSocketPipelineSink.java:148) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.handleServerSocket(NioServerSocketPipelineSink.java:100) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.eventSunk(NioServerSocketPipelineSink.java:74) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.Channels.bind(Channels.java:468) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.AbstractChannel.bind(AbstractChannel.java:192) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.bootstrap.ServerBootstrap$Binder.channelOpen(ServerBootstrap.java:348) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.Channels.fireChannelOpen(Channels.java:176) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.socket.nio.NioServerSocketChannel.<init>(NioServerSocketChannel.java:85) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory.newChannel(NioServerSocketChannelFactory.java:142) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory.newChannel(NioServerSocketChannelFactory.java:90) ~[netty-3.2.5.Final.jar:na] at org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:282) ~[netty-3.2.5.Final.jar:na] ... 44 common frames omitted

dubbo连接超时问题,求帮忙解决

# 已解决,我自己看日志,发现是数据库连接失败的问题。请勿回答。 # dubbo连接超时设置timeout="12000"也提示超时。 要读取的数据量不大,不超过1000条。 以下是提示错误 ``` 五月 18, 2019 2:14:40 下午 org.apache.catalina.core.StandardWrapperValve invoke 严重: Servlet.service() for servlet [huigou-manager] in context with path [] threw exception [Request processing failed; nested exception is com.alibaba.dubbo.rpc.RpcException: Failed to invoke the method getItemList in the service com.huigou.interfaces.HgProductService. Tried 3 times of the providers [192.168.25.1:20880] (1/1) from the registry 192.168.25.128:2181 on the consumer 192.168.25.1 using the dubbo version 2.5.3. Last error is: Invoke remote method timeout. method: getItemList, provider: dubbo://192.168.25.1:20880/com.huigou.interfaces.HgProductService?anyhost=true&application=huigou-web&check=false&dubbo=2.5.3&interface=com.huigou.interfaces.HgProductService&methods=addItem,getItemList,getItemCatList,editItem,deleteitem,upitem,downitem,getProductDesc&pid=3112&revision=0.0.1-SNAPSHOT&side=consumer&timeout=12000&timestamp=1558160001720, cause: Waiting server-side response timeout. start time: 2019-05-18 14:14:28.523, end time: 2019-05-18 14:14:40.524, client elapsed: 0 ms, server elapsed: 12001 ms, timeout: 12000 ms, request: Request [id=3, version=2.0.0, twoway=true, event=false, broken=false, data=RpcInvocation [methodName=getItemList, parameterTypes=[int, int], arguments=[1, 30], attachments={path=com.huigou.interfaces.HgProductService, interface=com.huigou.interfaces.HgProductService, version=0.0.0, timeout=12000}]], channel: /192.168.25.1:62721 -> /192.168.25.1:20880] with root cause com.alibaba.dubbo.remoting.TimeoutException: Waiting server-side response timeout. start time: 2019-05-18 14:14:28.523, end time: 2019-05-18 14:14:40.524, client elapsed: 0 ms, server elapsed: 12001 ms, timeout: 12000 ms, request: Request [id=3, version=2.0.0, twoway=true, event=false, broken=false, data=RpcInvocation [methodName=getItemList, parameterTypes=[int, int], arguments=[1, 30], attachments={path=com.huigou.interfaces.HgProductService, interface=com.huigou.interfaces.HgProductService, version=0.0.0, timeout=12000}]], channel: /192.168.25.1:62721 -> /192.168.25.1:20880 ``` ``` at com.alibaba.dubbo.remoting.exchange.support.DefaultFuture.get(DefaultFuture.java:107) at com.alibaba.dubbo.remoting.exchange.support.DefaultFuture.get(DefaultFuture.java:84) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboInvoker.doInvoke(DubboInvoker.java:96) at com.alibaba.dubbo.rpc.protocol.AbstractInvoker.invoke(AbstractInvoker.java:144) at com.alibaba.dubbo.rpc.listener.ListenerInvokerWrapper.invoke(ListenerInvokerWrapper.java:74) at com.alibaba.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:75) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.protocol.dubbo.filter.FutureFilter.invoke(FutureFilter.java:53) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.filter.ConsumerContextFilter.invoke(ConsumerContextFilter.java:48) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:91) at com.alibaba.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:53) at com.alibaba.dubbo.rpc.cluster.support.FailoverClusterInvoker.doInvoke(FailoverClusterInvoker.java:77) at com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker.invoke(AbstractClusterInvoker.java:227) at com.alibaba.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker.invoke(MockClusterInvoker.java:72) at com.alibaba.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:52) at com.alibaba.dubbo.common.bytecode.proxy1.getItemList(proxy1.java) at com.huigou.controller.HgProductController.getItemList(HgProductController.java:40) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:860) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) ``` 以下是dubbo配置 ``` <dubbo:application name="huigou-manager" /> <dubbo:registry protocol="zookeeper" address="192.168.25.128:2181" /> <!-- 用dubbo协议在20880端口暴露服务 --> <dubbo:protocol name="dubbo" port="20880" /> <!-- 声明需要暴露的服务接口 商品服务 --> <bean id="hgProductService" class="com.huigou.service.HgProductServiceImpl"></bean> <dubbo:service interface="com.huigou.interfaces.HgProductService" ref="hgProductService" timeout="12000"/> <bean id="hgMaUserService" class="com.huigou.service.HgMaUserServiceImpl"></bean> <dubbo:service interface="com.huigou.interfaces.HgMaUserService" ref="hgMaUserService" /> ``` ``` <!-- 引用dubbo服务 --> <dubbo:application name="huigou-web" /> <dubbo:registry protocol="zookeeper" address="192.168.25.128:2181" /> <dubbo:reference interface="com.huigou.interfaces.HgProductService" id="hgProductService" /> <dubbo:reference interface="com.huigou.interfaces.HgMaUserService" id="hgMaUserService" /> ```

调用dubbo服务时出现的问题

我在调用dubbo服务时一直出这个错,把timeout设置的时间长一些也不起作用,卡这里两天了 求大神解释啊 HTTP Status 500 - Request processing failed; nested exception is com.alibaba.dubbo.rpc.RpcException: Failed to invoke the method add in the service com.inspur.manage.service.interfaces.LogService. Tried 1 times of the providers [10.18.11.39:20881] (1/1) from the registry 10.18.12.178:2181 on the consumer 10.18.11.39 using the dubbo version 2.5.3. Last error is: Invoke remote method timeout. method: add, provider: dubbo://10.18.11.39:20881/com.inspur.manage.service.interfaces.LogService?anyhost=true&application=acweb&check=false&dubbo=2.5.3&interface=com.inspur.manage.service.interfaces.LogService&methods=selectCountMaxByTime,selectCountByCompanyId,queryByPage,queryAll,countByPerAccount,del,queryCount,add&pid=1692&retries=0&revision=manager_api&side=consumer&timeout=3000&timestamp=1449456314004, cause: Waiting server-side response timeout. start time: 2015-12-07 10:46:16.324, end time: 2015-12-07 10:46:19.325, client elapsed: 0 ms, server elapsed: 3001 ms, timeout: 3000 ms, request: Request [id=5, version=2.0.0, twoway=true, event=false, broken=false, data=RpcInvocation [methodName=add, parameterTypes=[interface java.util.Map], arguments=[{cCode=SI_10001, time=2015-12-07 10:46:16 星期一, param=ticket:bbd648d2fddb9a871544f39703a8af19, meth=ecIndex, name=李四, class=com.inspur.ac.portal.EcPortalController, account=SI_001, cName=浪潮软件, info=null, ip=10.18.11.39}], attachments={path=com.inspur.manage.service.interfaces.LogService, interface=com.inspur.manage.service.interfaces.LogService, timeout=3000, version=0.0.0}]], channel: /10.18.11.39:53040 -> /10.18.11.39:20881

dubbo发布服务失败的问题

编写了一个dubbo-demo的maven项目, 运行Provider类出现如下错误: Exception in thread "main" java.lang.IllegalStateException: Failed to register dubbo://169.254.165.91:20880/com.ruyi.dubbo.demo.DemoService?anyhost=true&application=dubbo-demo-provider&dubbo=2.6.2&generic=false&interface=com.ruyi.dubbo.demo.DemoService&methods=sayHello&pid=14868&side=provider&timestamp=1528802622329 to registry 127.0.0.1:2181, cause: Failed to register dubbo://169.254.165.91:20880/com.ruyi.dubbo.demo.DemoService?anyhost=true&application=dubbo-demo-provider&dubbo=2.6.2&generic=false&interface=com.ruyi.dubbo.demo.DemoService&methods=sayHello&pid=14868&side=provider&timestamp=1528802622329 to zookeeper zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=dubbo-demo-provider&dubbo=2.6.2&interface=com.alibaba.dubbo.registry.RegistryService&pid=14868&qos.port=22222&timestamp=1528802622317, cause: KeeperErrorCode = ConnectionLoss at com.alibaba.dubbo.registry.support.FailbackRegistry.register(FailbackRegistry.java:144) at com.alibaba.dubbo.registry.integration.RegistryProtocol.register(RegistryProtocol.java:125) at com.alibaba.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:145) at com.alibaba.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:54) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:98) at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:55) at com.alibaba.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java) at com.alibaba.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:506) at com.alibaba.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:358) at com.alibaba.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:317) at com.alibaba.dubbo.config.ServiceConfig.export(ServiceConfig.java:216) at com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:123) at com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:49) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:383) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:337) at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:882) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93) at com.ruyi.dubbo.demo.provider.Provider.main(Provider.java:19) Caused by: com.alibaba.dubbo.rpc.RpcException: Failed to register dubbo://169.254.165.91:20880/com.ruyi.dubbo.demo.DemoService?anyhost=true&application=dubbo-demo-provider&dubbo=2.6.2&generic=false&interface=com.ruyi.dubbo.demo.DemoService&methods=sayHello&pid=14868&side=provider&timestamp=1528802622329 to zookeeper zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=dubbo-demo-provider&dubbo=2.6.2&interface=com.alibaba.dubbo.registry.RegistryService&pid=14868&qos.port=22222&timestamp=1528802622317, cause: KeeperErrorCode = ConnectionLoss at com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry.doRegister(ZookeeperRegistry.java:116) at com.alibaba.dubbo.registry.support.FailbackRegistry.register(FailbackRegistry.java:131) ... 21 more Caused by: java.lang.IllegalStateException: KeeperErrorCode = ConnectionLoss at com.alibaba.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient.createPersistent(CuratorZookeeperClient.java:79) at com.alibaba.dubbo.remoting.zookeeper.support.AbstractZookeeperClient.create(AbstractZookeeperClient.java:65) at com.alibaba.dubbo.remoting.zookeeper.support.AbstractZookeeperClient.create(AbstractZookeeperClient.java:59) at com.alibaba.dubbo.remoting.zookeeper.support.AbstractZookeeperClient.create(AbstractZookeeperClient.java:59) at com.alibaba.dubbo.remoting.zookeeper.support.AbstractZookeeperClient.create(AbstractZookeeperClient.java:59) at com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry.doRegister(ZookeeperRegistry.java:114) ... 22 more Caused by: org.apache.curator.CuratorConnectionLossException: KeeperErrorCode = ConnectionLoss at org.apache.curator.ConnectionState.checkTimeouts(ConnectionState.java:225) at org.apache.curator.ConnectionState.getZooKeeper(ConnectionState.java:94) at org.apache.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:117) at org.apache.curator.framework.imps.CuratorFrameworkImpl.getZooKeeper(CuratorFrameworkImpl.java:489) at org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:740) at org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:723) at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:109) at org.apache.curator.framework.imps.CreateBuilderImpl.pathInForeground(CreateBuilderImpl.java:720) at org.apache.curator.framework.imps.CreateBuilderImpl.protectedPathInForeground(CreateBuilderImpl.java:484) at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:474) at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:454) at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:44) at com.alibaba.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient.createPersistent(CuratorZookeeperClient.java:76) ... 27 more 项目结构为: dubbo-demo - dubbo-demo-api - com.ruyi.dubbo.demo.DemoService.java - dubbo-demo-provider - com.ruyi.dubbo.demo.provider.DemoServiceImpl - com.ruyi.dubbo.demo.provider.Provider - META-INF/spring/dubbo-demo-provider.xml - dubbo-demo-consumer dubbo-demo-api包含一个DemoService接口: public interface DemoService { String sayHello(String name); } dubbo-demo-provider包含一个类实现DemoService接口的DemoServiceImpl类: public class DemoServiceImpl implements DemoService { @Override public String sayHello(String name) { // TODO Auto-generated method stub return "Hello " + name; } } 以及一个Provider类: public class Provider { public static void main(String[] args) throws Exception { //Prevent to get IPV6 address,this way only work in debug mode //But you can pass use -Djava.net.preferIPv4Stack=true,then it work well whether in debug mode or not System.setProperty("java.net.preferIPv4Stack", "true"); ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"META-INF/spring/dubbo-demo-provider.xml"}); context.start(); System.in.read(); // press any key to exit } } dubbo-demo-provider.xml: <?xml version="1.0" encoding="UTF-8"?> <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://dubbo.apache.org/schema/dubbo" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd"> <!-- provider's application name, used for tracing dependency relationship --> <dubbo:application name="dubbo-demo-provider"/> <!-- use multicast registry center to export service --> <!-- <dubbo:registry address="multicast://224.5.6.7:1234"/> --> <dubbo:registry address="zookeeper://127.0.0.1:2181"/> <!-- use dubbo protocol to export service on port 20880 --> <dubbo:protocol name="dubbo" port="20880"/> <!-- service implementation, as same as regular local bean --> <bean id="demoService" class="com.ruyi.dubbo.demo.provider.DemoServiceImpl"/> <!-- declare the service interface to be exported --> <dubbo:service interface="com.ruyi.dubbo.demo.DemoService" ref="demoService"/> </beans> dubbo-demo-consumer项目(略)

各位大神好,请问DUBBO中HTTP协议怎么配置啊

给位大神好,问题如上,我按照官方文档去配置HTTP协议,包括web.xml和dubbo.xml, 但是启动tomcat访问页面报http 500错误,错误如下: "NetworkError: 500 Internal Server Error - http://localhost:8080/dubbo_webservice/services/com.enson.webservice.service.impl.DubboServicel" 我的web.xml配置如下: ![图片说明](https://img-ask.csdn.net/upload/201512/17/1450344579_348373.png) 我的dubbo.xml配置如下: ![图片说明](https://img-ask.csdn.net/upload/201512/17/1450344600_122818.png) 请各位不吝赐教,我问了很多群,都没有解决,谢谢各位!!我也只有这么多C币,请各位不要嫌少哦。

dubbo:reference该怎么注入。

dubbo:reference引入的bean,该怎么注入,可以用注解@Autowired注入吗,或者@reference注入,还是只能set注入??? <!-- 引用 dubbo 服务 --> <dubbo:application name="atonement-shop-web" /> <dubbo:registry address="zookeeper://192.168.25.129:2181"/> <dubbo:reference id="sellerService" interface="com.atonement.sellergo ds.service.SellerService" > </dubbo:reference>

Dubbo服务部署到服务器上,从本地访问服务器上的服务访问不通

<br> ### /----------原问题----------/(问题已经解决,答案在后文) <br> <br> 如题,项目使用的是dubbo+nacos,在本地上启动provider端和customer端,可以正常访问。 (provider和customer端同时部署到服务器上,也可以正常访问) 但是,把provider端部署到linux服务器上,再从本地启动customer端就访问不了,一直显示超时(两者分开部署,访问显示超时)... ``` org.apache.dubbo.remoting.TimeoutException: Waiting server-side response timeout by scan timer. start time: 2019-10-21 11:32:02.027, end time: 2019-10-21 11:32:12.047, client elapsed: 1 ms, server elapsed: 10018 ms, timeout: 10000 ms, request: Request [id=5, version=2.0.2, twoway=true, event=false, broken=false, data=RpcInvocation [methodName=sayHello, parameterTypes=[], arguments=[], attachments={path=com.braisedpanda.suanfa.service.TestService, activelimit_filter_start_time=1571628722027, interface=com.braisedpanda.suanfa.service.TestService, version=1.0.0, timeout=10000}]], channel: /172.215.1.27:50876 -> /172.17.0.2:20880 at org.apache.dubbo.remoting.exchange.support.DefaultFuture.doReceived(DefaultFuture.java:189) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.remoting.exchange.support.DefaultFuture.received(DefaultFuture.java:153) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.remoting.exchange.support.DefaultFuture$TimeoutCheckTask.run(DefaultFuture.java:252) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:648) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.common.timer.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:727) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.common.timer.HashedWheelTimer$Worker.run(HashedWheelTimer.java:449) ~[dubbo-2.7.3.jar:2.7.3] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_211] ``` 网页报错:![图片说明](https://img-ask.csdn.net/upload/201910/21/1571629077_503413.png) 配置: ![图片说明](https://img-ask.csdn.net/upload/201910/21/1571629427_901327.png) ![图片说明](https://img-ask.csdn.net/upload/201910/21/1571629436_736567.png) 部署linux:![图片说明](https://img-ask.csdn.net/upload/201910/21/1571629510_364799.png) 网上各种方法都试过了,折腾一周了还是不行, 设置timeout时间,关闭Linux防火墙,删除了连接数据的代码,直到后来我甚至怀疑服务器有问题,又租了台服务器测试还是不行....... 快要崩溃了... 希望有大佬能指出问题... <br> <br> <br> /----------以下是问题解决方案----------/ ####先说下问题出现的原因: dubbo服务部署在linux服务器上时,它默认使用的是linux系统的内网,对外暴露的是内网的地址,这就导致我本地项目访问该服务器服务时,访问不通,出现超时错误。这就解释了为什么服务端和消费端同时部署在本地,或者同时部署在服务器上时,可以畅通无阻的访问了。 ![图片说明](https://img-ask.csdn.net/upload/201910/23/1571810544_540718.png) 如图片所示,我原先注册的服务全是172开头的内网,本地访问不通。后来修改了之后,dubbo对外暴露外网,可以顺利访问。 至于如何让dubbo在linux部署时暴露外网服务,网上有很多教程,说什么修改linux hosts主机名和公网ip,修改linux DNS地址,甚至还有禁用linux网卡.. 这些我都试过了,全都没用~ 每个人的情况都不一样,可能对有些人有用 ####我的解决办法: 1、 我在项目配置中添加了: spring.cloud.nacos.discovery.ip=39.98.131.xxx (这个ip地址,是你要部署服务器的公网地址。 比如你要部署到公网地址为39.98.131.588这台服务器上, 那上面就写39.98.131.588) 2、docker 运行镜像时,添加 DUBBO_IP_TO_REGISTRY语句 ``` docker run -d -e DUBBO_IP_TO_REGISTRY=39.98.131.xxx -e DUBBO_PORT_TO_REGISTRY=20880 -p 20880:20880 --name xxx xxxx(镜像名称) ``` 这下,这个问题终于解决了,真的坑,折腾我好久了,麻蛋~ 下面贴上我的配置,仅供参考,方面同样被这个问题困扰的小伙伴早点脱困 bootstrap.yml ``` ##应用名称 spring: main: allow-bean-definition-overriding: true # profiles: # active: public cloud: nacos: discovery: enabled: true register-enabled: true server-addr: ${spring.cloud.nacos.config.server-addr} namespace: ${spring.cloud.nacos.config.namespace} config: server-addr: 47.98.135.xxx:8848 group: provider namespace: c229ab10-2e39-4444-be97-048b3a5ef49d file-extension: yaml ``` <br> application.properties ``` spring.application.name=balance-suanfa-provider dubbo.application.name=balance-suanfa-provider dubbo.scan.base-packages=com.braisedpanda.suanfa.service dubbo.protocol.name=dubbo dubbo.protocol.port=20880 #这个本地测试就注释吧,部署到服务器上时,根据服务器公网填写 #spring.cloud.nacos.discovery.ip=39.98.131.xxx dubbo.registry.address=nacos://47.98.135.xxx:8848 dubbo.provider.loadbalance=myRoundRobin #dubbo.provider.actives=8 #dubbo.provider.executes=8 dubbo.provider.dispatcher=message dubbo.provider.threadpool=cached dubbo.provider.timeout=50000 dubbo.provider.delay=-1 dubbo.application.dump-directory=/tmp dubbo.provider.cluster=failfast dubbo.consumer.check=false dubbo.registry.check=false ``` 附上两篇有用的参考连接: https://juejin.im/post/5b2072016fb9a01e2d704431 https://www.jianshu.com/p/7c29a24a917d

dubbo2.5.1 版本 使用XML配置 报Caused by: java.lang.IllegalStateException: Duplicate monitor configs

# XML配置文件 ``` <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd "> <dubbo:protocol name="hessian" port="${hessian.protocol.port}" threads="1000" /> <dubbo:registry protocol="${dubbo.registry.protocol}" address="${dubbo.registry.address}" /> <dubbo:protocol name="${dubbo.protocol.name}" port="${dubbo.protocol.port}" threadpool="${dubbo.protocol.threadpool}" threads="${dubbo.protocol.threads}" payload="${dubbo.protocol.payload:8388608}" accepts="${dubbo.protocol.accepts:0}" dispatcher="${dubbo.protocol.dispatcher:all}" /> <dubbo:monitor protocol="${dubbo.monitor.protocol:registry}" /> <dubbo:application name="opcnet-icms-provider" /> <dubbo:provider executes="${dubbo:provider.executes}" actives="${dubbo:provider.actives}" /> <!-- <dubbo:application name="${dubbo.application.owner}" /> --> ``` # 报错日志: ``` Caused by: java.lang.IllegalStateException: Duplicate monitor configs: <dubbo:monitor protocol="dubbo" id="com.alibaba.dubbo.config.MonitorConfig" /> and <dubbo:monitor protocol="dubbo" id="com.alibaba.dubbo.config.MonitorConfig" /> at com.alibaba.dubbo.config.spring.ReferenceBean.afterPropertiesSet(ReferenceBean.java:157) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1631) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1568) ... 31 more ``` # 当 <dubbo:monitor protocol="${dubbo.monitor.protocol:registry}" />配置去除后程序正常启动

dubbo服务消费者禁止状态无法启用

报错如下: com.alibaba.dubbo.rpc.RpcException: Failed to invoke the method fireSynchroEvent in the service com.gw.facade.rcms.service.AnalyzerFacade. No provider available for the service com.gw.facade.rcms.service.AnalyzerFacade from registry 10.10.10.11:2181 on the consumer 192.168.103.141 using the dubbo version 2.5.3. Please check if the providers have been started and registered. ![图片说明](https://img-ask.csdn.net/upload/201707/18/1500378132_317392.png)

关于dubbo连接不到服务器

严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener com.alibaba.dubbo.rpc.RpcException: Fail to start server(url: dubbo://192.168.10.123:20880/com.jgxin.service.ItemService?anyhost=true&application=jgxin-manager&channel.readonly.sent=true&codec=dubbo&dubbo=2.5.3&heartbeat=60000&interface=com.jgxin.service.ItemService&methods=getItemList,addItem,getItemById&pid=5584&side=provider&timeout=100000&timestamp=1465717104749) Failed to bind NettyServer on /192.168.10.123:20880, cause: Failed to create a selector. at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:289) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.openServer(DubboProtocol.java:266) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.export(DubboProtocol.java:253) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:55) at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:56) at com.alibaba.dubbo.rpc.Protocol$Adpative.export(Protocol$Adpative.java) at com.alibaba.dubbo.registry.integration.RegistryProtocol.doLocalExport(RegistryProtocol.java:153) at com.alibaba.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:107) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:53) at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:54) at com.alibaba.dubbo.rpc.Protocol$Adpative.export(Protocol$Adpative.java) at com.alibaba.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:485) at com.alibaba.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:281) at com.alibaba.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:242) at com.alibaba.dubbo.config.ServiceConfig.export(ServiceConfig.java:143) at com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:109) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:151) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:128) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:331) at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:773) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: com.alibaba.dubbo.remoting.RemotingException: Failed to bind NettyServer on /192.168.10.123:20880, cause: Failed to create a selector. at com.alibaba.dubbo.remoting.transport.AbstractServer.<init>(AbstractServer.java:72) at com.alibaba.dubbo.remoting.transport.netty.NettyServer.<init>(NettyServer.java:63) at com.alibaba.dubbo.remoting.transport.netty.NettyTransporter.bind(NettyTransporter.java:33) at com.alibaba.dubbo.remoting.Transporter$Adpative.bind(Transporter$Adpative.java) at com.alibaba.dubbo.remoting.Transporters.bind(Transporters.java:48) at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchanger.bind(HeaderExchanger.java:41) at com.alibaba.dubbo.remoting.exchange.Exchangers.bind(Exchangers.java:63) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:287) ... 32 more Caused by: org.jboss.netty.channel.ChannelException: Failed to create a selector. at org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:337) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.<init>(AbstractNioSelector.java:95) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.<init>(AbstractNioWorker.java:53) at org.jboss.netty.channel.socket.nio.NioWorker.<init>(NioWorker.java:45) at org.jboss.netty.channel.socket.nio.NioWorkerPool.createWorker(NioWorkerPool.java:45) at org.jboss.netty.channel.socket.nio.NioWorkerPool.createWorker(NioWorkerPool.java:28) at org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.newWorker(AbstractNioWorkerPool.java:99) at org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.init(AbstractNioWorkerPool.java:69) at org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:39) at org.jboss.netty.channel.socket.nio.NioWorkerPool.<init>(NioWorkerPool.java:33) at org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory.<init>(NioServerSocketChannelFactory.java:149) at org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory.<init>(NioServerSocketChannelFactory.java:131) at com.alibaba.dubbo.remoting.transport.netty.NettyServer.doOpen(NettyServer.java:71) at com.alibaba.dubbo.remoting.transport.AbstractServer.<init>(AbstractServer.java:67) ... 39 more Caused by: java.io.IOException: Unable to establish loopback connection at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:125) at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:69) at java.security.AccessController.doPrivileged(Native Method) at sun.nio.ch.PipeImpl.<init>(PipeImpl.java:141) at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50) at java.nio.channels.Pipe.open(Pipe.java:150) at sun.nio.ch.WindowsSelectorImpl.<init>(WindowsSelectorImpl.java:127) at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44) at java.nio.channels.Selector.open(Selector.java:227) at org.jboss.netty.channel.socket.nio.SelectorUtil.open(SelectorUtil.java:63) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:335) ... 52 more Caused by: java.io.IOException: 你的主机中的软件中止了一个已建立的连接。 at sun.nio.ch.SocketDispatcher.write0(Native Method) at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51) at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) at sun.nio.ch.IOUtil.write(IOUtil.java:65) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:487) at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:102) ... 62 more

dubbo服务已启动,作为消费者的我调用服务端的接口,一直报错

错误如图,有没有大神解释一下这是为啥子@_@![![图片说明](https://img-ask.csdn.net/upload/201802/01/1517414531_602045.png)图片说明](https://img-ask.csdn.net/upload/201802/01/1517414523_949781.png) 附上错误信息:[DUBBO] Decode request failed: com/esotericsoftware/kryo/KryoException, dubbo version: 2.8.4, current host: 169.xxx.xxx.70 java.lang.NoClassDefFoundError: com/esotericsoftware/kryo/KryoException

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