Computer node, cluster system, cluster managing method, and cluster managing program

摘要

A cluster system 1 for providing a plurality of virtual computer nodes to a client 5 has real nodes 3a, 3b and 3c for executing an application, and a coordinator node 2 for assigning the real IP address that is the IP address of the real node with the IP address of the virtual computer node, and the real nodes 3a, 3b and 3c and the coordinator node 2 store the IP management table of a corresponding table of the virtual IP address and the real IP address, and perform communication using the virtual IP address based on the IP management table.