Distributed database, method of sharing data, program storing medium, and apparatus for a distributed database

摘要

A distributed database of a peer-to-peer network is provided. In the network, a group is composed of plural nodes, and the nodes in the group each have CPU and a state list memory. CPU of each node sends other node a request for information to obtain and store node-state information. The node-state information is delivered through a prescribed route among the nodes in the group. When the number of nodes participating in the group increases more than a prescribed number, the participating nodes are separated into plural groups.