random backends in use_backend with map file

Imagine we have a backend file like this : test.com backend_1 test.com backend_2 and we have something like this in our haproxy config file frontend http_front bind *:80 stats uri /haproxy?stats use_backend %[str(test.com),map(/etc/haproxy/testmap.map,default)] this config is working but always return backend_1 when u reach to test.com i want it to round-robin the requests to 2…