The log is already obvious. When the main thread initializes the spring container, it locks org.springframework.beans.factory.support.DefaultSingletonBeanRegistry#singletonObjects and then tries to lock a RegistryDirectory when executing MulticastRegistry.doSubscribe.
The DubboMulticastRegistryReceiver thread locks the RegistryDirectory when it is in MulticastRegistry.receive. When it gets the bean, it tries to lock org.springframework.beans.factory.support.DefaultSingletonBeanRegistry#singletonObjects and deadlock. So it seems that we need to synchronize the execution of MulticastRegistry.this.receive in the MulticastRegistry constructor to eliminate deadlock. [ Full content available at: https://github.com/apache/incubator-dubbo/issues/2539 ] This message was relayed via gitbox.apache.org for [email protected]
