Patent ID: 8798081

Claim:
An event delivery system comprising: a publisher node that issues event information containing a content of a generated event and advertisement information advertising the event; a subscriber node that issues request information for receiving event information of a desired event among the event; a rendezvous node that makes information management related to the event; and a broker node that transfers the event information and the advertisement information issued by the publisher node, and the request information issued by the subscriber node, wherein the rendezvous node includes a traffic monitoring unit that monitors a traffic volume of the event information issued by the publisher node, and a specific event determination unit that determines specific event information subject to load distribution from among the event information when the traffic volume monitored by the traffic monitoring unit exceeds a predetermined value, and the broker node includes a route detection unit that detects whether the broker node is an aggregation point node or a branch point node for changing a current delivery route of the specific event information, and a route construction unit that constructs a new delivery route of the specific event information going through the aggregation point node and the branch point node detected by the route detection unit, bypassing the rendezvous node.