Load distribution method in which delivery server is selected based on the maximum number of simultaneous sessions set for each content

摘要

A session management database stores, in association with each delivery server, a total of the maximum numbers of simultaneous sessions, which is a total value of the maximum numbers of simultaneous sessions accumulated in the delivery server, the maximum number of simultaneous sessions being the number of sessions simultaneously connectable to registered content. A load balancer selects a delivery server for registering content requested to be registered, based on the total of the maximum numbers of simultaneous sessions of each delivery server, which is stored in the session management database as well as adding the maximum number of simultaneous sessions set for the content to the total of the maximum numbers of simultaneous sessions corresponding to the delivery server selected as the content registration destination to update the session management database.