MULTISTAGE ONLINE TRANSACTION SYSTEM, SERVER, MULTISTAGE ONLINE TRANSACTION PROCESSING METHOD AND PROGRAM

摘要

Provided is a system in which a plurality of nodes including a plurality of servers are connected at least with one NAS shared among the plurality of nodes. At least one of the nodes includes a shared memory from/to which each server belonging to the same node can read and write data. Each of at least two of the servers belonging to the node having the shared memory includes: a node judging device which judges whether output destination of output data obtained by processing the input data is the server belonging to the same node as that of the server itself; a data storage memory acquiring device which secures a storage region of the output data on the shared memory if the output destination is the server belonging to the same node; and a data processor which processes the input data and stores the output data to the storage region.