Synchronization between two different Consul masters


in our company, we use Consul masters where are connected to almost all our APPs. Now we found out we need to build new Consul masters. I would like to know if is there some way how to sync two Consul masters? I would like to avoid split-brain in topology with two Consul Master. That’s why I’m interested if there is some way how to sync these two Consul masters that app1 registered on the old one can connect to app2 registered on the new one.

We are not able to migrate in one second from the old one to the new one.

Thx for your help in advance.