TWI751402B

Disclosed are a data synchronization method, a distributed system and a device so as to solve the problem in the existing technology wherein the instantaneity of data synchronization of data between servers is poor. In an embodiment of the present invention, the invention is applied to a distributed system, the system comprising at least two servers; the at least two servers comprise a first server and a second server; the method comprises: a first server receiving first verification information sent by a second server, the first verification information comprising a first verification parameter, and the first verification parameter being generated by the second server according to changed local data when determined that local data changes; the first server synchronizing local data as data of the second server when determining that the received first verification parameter is inconsistent with a locally stored second verification parameter, the second verification parameter being generated by the first server