Use sticky base on other LB methods(such as least_conn, hash.)

[Yiyuan_Z]

Hi, team, We use this sticky module in our load balancer for session stickyness function, and it default use the classic RR mode if a request come without a valid cookie. This module is work parallel to other load balance method, such as least_conn, hash module. And only one method could be configured for nginx at a moment. In some use case, we want to set the session sticky on the top level of nginx load balance method, and should be compatible with least_conn and hash method, when there is a new request reach(without cookie), the nginx could select a backend server by least_conn or hash method, not only limit to RR method. Is there possible to enhance this function?

Thanks, Yiyuan