LoadBalancing

hello guuys,
how can i test in which server my room is created before redericting.
exemple: i create my room1(xxx.com/room1) in server1 when i refresh the page, i’m redirecte to server 2 so when i try to log into room1(xxx.com/room1), if i’m in server2 he create a new room (xxx.com/room1 —> server2), so i need to refresh again for rederecting in server1 for using the room1 who has created before