How can i configure proxy multiple hosts for a domain?

[mslee]

It's not load balancing like round robin, least conn, ip bash.
I want to know how to proxy simultaneously to the registered proxy host for
one domain.

I searched for this method, but all documents were about load balancing.
Please help me if you are aware of this problem.

Thank you in advance.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,278997,278997#msg-278997