Back-end server

The server that actually processes client requests. Only 50 back-end servers can be added to a single load balancing instance.

be careful:

The load balancing instance can only be deployed in the same region as the back-end server.

Server Group

Combination of multiple back-end servers. Specify different server groups on different monitors as required to make load balancing more personalized and flexible.

be careful:

1. Server group consists of back-end server+port+weight;

2. A listener can only point to one server group;

3. One server group can be bound by multiple listeners;

4. One back-end server can correspond to multiple server groups, and one server group can add different back-end servers.