| 摘要 |
PROBLEM TO BE SOLVED: To provide a client server control system capable of increasing the responsiveness of a server side to a request from a client, and quickly and smoothly succeeding to a stand-by server when any failure is occurred in an operating server. SOLUTION: A client 2 is provided with an operation mode managing part 20 for managing operation mode information for identifying whether each server 11 and 12 is an operation system or stand-by system, a constitution control managing part 21 for detecting the presence or no presence of the occurrence any failure in each server 11 and 12, and a server connecting part 22 for connecting the server to be connected based on the operation mode information from the operation mode managing part 20 and the failure detection information from the constitution control managing part 21. On the other hand, those servers 11 and 12 are provided with operation mode managing parts 110 and 120 for managing the operation mode information for identifying whether or not the servers 11 and 12 are the operation system or the stand-by system and constitution control managing parts 111 and 121 for detecting the presence or no presence of the occurrence of any failure of the servers 11 and 12 including the server itself, and for notifying the other server and the client 2 of the occurrence of any failure when any failure is generated in the server itself, respectively.
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