Redundant message processing system featuring reception server controlling communication between client and server process, and stand-by server retransmitting message with information indicating the message being a retransmitted message

摘要

The present invention discloses a message communication system and a distribution system. The feature of the present invention lies in various functions in the reception server, which is provided between the client server and the processing server. For example, the reception server performs reference processing, update processing, redundancy processing, etc. In the claimed invention, a reception server 20 is arranged between a client process 10, and a processing server 30. A demand discrimination stage 25 is provided for discriminating a demand only for a reference process and not requiring an update of medium and exclusive resources, and a demand for a reference process and reference and update process requiring a change of condition of the resource. The demand discrimination stage 25 classifies respective message communications systems into three aspects.