| 摘要 |
PROBLEM TO BE SOLVED: To synchronize data on a shared memory between servers without suspending an application process, in a system which synchronizes the data on respective shared memories between multiple servers each having the shared memory. SOLUTION: A data synchronous system synchronizes, between multiple servers each having the shared memory, data which are stored on the shared memory of each server. The system includes a data write means which writes data into the shared memory and then generates write state information indicating the write state of completely written data; and a data communication means which reads out the completely written data and positional information on a position of the data in the shared memory on the basis of the write state information, and transfers them to one or more other servers. COPYRIGHT: (C)2009,JPO&INPIT
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