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The java implementation of Apache Dubbo. An RPC and microservice framework.
https://dubbo.apache.org/
Apache License 2.0
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Demo project `dubbo-samples-annotation` start failed. What should I do? #11645

Open YunWZ opened 1 year ago

YunWZ commented 1 year ago

Ask your question here

I try to start dubbo-samples-annotation project, but failed.

First, I start AnnotationProviderBootstrap, that is ok. and output log :

[24/02/23 12:38:13:013 CST] main  INFO server.Server:  [DUBBO] qos-server bind localhost:22222, dubbo version: 3.2.0-beta.5-SNAPSHOT, current host: 192.168.31.232

And then, I try to start AnnotationConsumerBootstrap, it's failed! The output log below:

[24/02/23 12:51:28:028 CST] DubboShutdownHook  WARN integration.RegistryProtocol:  [DUBBO] null, dubbo version: 3.2.0-beta.5-SNAPSHOT, current host: 192.168.31.232, error code: 99-0. This may be caused by unknown error in registry module, go to https://dubbo.apache.org/faq/99/0 to find instructions. 
java.lang.NullPointerException
    at org.apache.dubbo.registry.integration.RegistryProtocol$ExporterChangeableWrapper.unexport(RegistryProtocol.java:913)
    at org.apache.dubbo.registry.integration.RegistryProtocol$DestroyableExporter.unexport(RegistryProtocol.java:695)
    at org.apache.dubbo.config.ServiceConfig.unexport(ServiceConfig.java:195)
    at org.apache.dubbo.config.deploy.DefaultModuleDeployer.postDestroy(DefaultModuleDeployer.java:241)
    at org.apache.dubbo.rpc.model.ModuleModel.onDestroy(ModuleModel.java:109)
    at org.apache.dubbo.rpc.model.ScopeModel.destroy(ScopeModel.java:115)
    at org.apache.dubbo.rpc.model.ApplicationModel.onDestroy(ApplicationModel.java:260)
    at org.apache.dubbo.rpc.model.ScopeModel.destroy(ScopeModel.java:115)
    at org.apache.dubbo.config.DubboShutdownHook.doDestroy(DubboShutdownHook.java:123)
    at org.apache.dubbo.config.DubboShutdownHook.run(DubboShutdownHook.java:78)
ShenFeng312 commented 1 year ago

You can remove

  System.out.println("greeting : " + annotationAction.doGreeting("world"));
  System.out.println("reply : " + annotationAction.replyGreeting("world"));

in AnnotationConsumerBootstrap. it will always time out

AlbumenJ commented 1 year ago 
[24/02/23 12:51:28:028 CST] DubboShutdownHook  WARN integration.RegistryProtocol:  [DUBBO] null, dubbo version: 3.2.0-beta.5-SNAPSHOT, current host: 192.168.31.232, error code: 99-0. This may be caused by unknown error in registry module, go to https://dubbo.apache.org/faq/99/0 to find instructions. 
java.lang.NullPointerException
    at org.apache.dubbo.registry.integration.RegistryProtocol$ExporterChangeableWrapper.unexport(RegistryProtocol.java:913)
    at org.apache.dubbo.registry.integration.RegistryProtocol$DestroyableExporter.unexport(RegistryProtocol.java:695)
    at org.apache.dubbo.config.ServiceConfig.unexport(ServiceConfig.java:195)
    at org.apache.dubbo.config.deploy.DefaultModuleDeployer.postDestroy(DefaultModuleDeployer.java:241)
    at org.apache.dubbo.rpc.model.ModuleModel.onDestroy(ModuleModel.java:109)
    at org.apache.dubbo.rpc.model.ScopeModel.destroy(ScopeModel.java:115)
    at org.apache.dubbo.rpc.model.ApplicationModel.onDestroy(ApplicationModel.java:260)
    at org.apache.dubbo.rpc.model.ScopeModel.destroy(ScopeModel.java:115)
    at org.apache.dubbo.config.DubboShutdownHook.doDestroy(DubboShutdownHook.java:123)
    at org.apache.dubbo.config.DubboShutdownHook.run(DubboShutdownHook.java:78)

This is a log when shutting down.