[Bug] consumer cannot be registered

[eduosi]

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• I had searched in the issues and found no similar issues.

Apache Dubbo Component

Java SDK (apache/dubbo)

Dubbo Version

Dubbo java 3.3.x

Steps to reproduce this issue

The consumer side cannot register with the registry center.

What you expected to happen

The isValidInstance always returns false. Because ServiceInstance.getHost() always returns null, and instance.getPort() always returns -1.

Because there is no definition of the @ DubboService ServiceInstance. GetServiceMetadata () collectExportedURLSet () always returns empty. So, the values of DefaultServiceInstance host and port cannot be updated.

Anything else

No response

Are you willing to submit a pull request to fix on your own?

• Yes I am willing to submit a pull request on my own!

Code of Conduct

• I agree to follow this project's Code of Conduct

[wcy666103]

Can you provide a demo that is stable to reproduce?
Are you willing to resolve this issue by submitting a pr?

[eduosi]

Can you provide a demo that is stable to reproduce? Are you willing to resolve this issue by submitting a pr?

Q1. Yes, tonight I'll create a simple example to reproduce the problem.
Q2. I can try, because I need to modify the service registration logic, which may conflict with the existing registration logic design.

[eduosi]

Can you provide a demo that is stable to reproduce? Are you willing to resolve this issue by submitting a pr?

dubbo-test.zip

This is a simple demo. Run with dubbo-test-consumer.

[QingJuBaiTang]

If no Dubbo service is defined, the service will not be registered. I always thought that Dubbo was designed this way, isn't it?

[eduosi]

If no Dubbo service is defined, the service will not be registered. I always thought that Dubbo was designed this way, isn't it?

It depends on how it's designed. But, this description is not found in the documentation. Moreover, the description of the configuration item dubbo.application.register-consumer in the documentation is easily misleading.

[eduosi]

If no Dubbo service is defined, the service will not be registered. I always thought that Dubbo was designed this way, isn't it?

dubbo.application.register-consumer also does not have absolute control over whether a service is registered.