Method and system for guaranteeing connection load balance of registration center, client and server

The invention discloses a method and a system for guaranteeing connection load balance of a registration center, a client and a server. The method comprises the following steps: the client randomly selects a server node address in a registration center cluster at preset time intervals to initiate an HTTP (Hyper Text Transport Protocol) request; when the randomly selected server node receives the request, the latest cluster list and the connection number of each node in the registration center cluster are inquired; determining the load state of each node according to the connection number and a preset allowable connection number proportion threshold value, and setting the weight of each node; sending the newest cluster list, the load state and the weight to the client; and when the client determines that the load of the connected registration center node is abnormal according to the load state of each node, reselecting the registration center node for connection according to the newest cluster ...