Peer Management Server in P2P System and Peer Management Method

摘要

A peer management server for selecting a peer randomly in a P2P(Peer-to-Peer) system and a peer management method thereof are provided to select the peer randomly to distribute connections uniformly without concentrating the connection on the predetermined peer even though peer information is managed in a database. A front end process(304) sets up connection with peers connected to a P2P system, assigns a random number ID to the peer when a peer registration request message is received from the peers, and generates a query name/parameter corresponding to the received message. The parameter includes at least one of a peer address and the random number ID. An SQL(Structured Query Language) map processor(306) includes mapping information for mapping the query name and parameter to a query, and outputs the query corresponding to the query name and parameter. A peer database(308) stores the peer address and the random number ID by each query of the SQL map processor. The front end process provides the parameter for fixing a range for selecting a number to the SQL map process, and the SQL map process generates a query for selecting a peer belonging to the fixed range in the parameter when peer selection is requested.