| 摘要 |
PROBLEM TO BE SOLVED: To secure the matching of data between servers in a system comprising a master server and a slave server.SOLUTION: A master server 201 of a data base system according to the present invention achieves data synchronization between the master server 201 and plural slave servers 202, and performs control such that the majority of servers of the master server 201 and the slave servers 202 have latest data. |
