zrlw commented on issue #8895:
URL: https://github.com/apache/dubbo/issues/8895#issuecomment-926997602
@owen200008
我用 #8880 （使用了内置zk）的测试案例跟踪了一下，CommuLink.close先去调用了zk的unregister方法，调用过程如下：
ZookeeperRegistry(AbstractRegistry).unregister(URL) line: 295
ZookeeperRegistry(FailbackRegistry).unregister(URL) line: 250
ListenerRegistryWrapper.unregister(URL) line: 81
RegistryDirectory<T>(DynamicDirectory<T>).destroy() line: 233
FailoverClusterInvoker<T>(AbstractClusterInvoker<T>).destroy() line:
112
AbstractCluster$InterceptorInvokerNode<T>.destroy() line: 118
MockClusterInvoker<T>.destroy() line: 78
MigrationInvoker<T>.destroy() line: 192
MigrationInvoker<T>(Invoker<T>).destroyAll() line: 50
CommuLink.close() line: 41
CommuLink.main(String[]) line: 63
然后才去调用DubboInvoker的close方法，所以没有重新你说的问题2。
dubbo集成测试使用的代码是dubbo-samples， 建议你看一下 https://github.com/apache/dubbo-samples，
然后参照 #8880
所说的方法新增一个用于验证你的问题的集成测试案例，只是如果用nacos，你还需要先启动一个nacos注册中心，通过集成测试案例本机debug调试确认问题比较快。
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