How to load balance between servers with nginx-rtmp-module?

Question

Nginx

Tell me how to properly distribute viewers between servers with nginx-rtmp-module ?
For example, there are 3 servers on each nginx-rtmp-module installed, an rtmp stream is created on the first server, how to send viewers to the 2nd server if there are more of them than the first can hold and the same from the second to the third.

Answer 1

Make a script that will evaluate if the server can accept more connections and go to it via auth_request before giving the stream.
Just as if a cyclic redirect did not work out.