Fuente: Wipo "BigData" Embodiments of the present application provide a data synchronization method and a management node. The method is applied to a management node in a big data management system. The management node comprises a primary management node and a standby management node. The method comprises the following steps: the primary management node periodically sends attribute information of a first postgres database corresponding to the primary management node to a dynamic host configuration protocol DHCP server; The standby management node periodically requests attribute information of the first postgres database from the DHCP server. The standby management node synchronizes the data of the first postgres database to the second postgres database when determining that the acquired attribute information ofthe first postgres database is different from the attribute information of the second postgres database corresponding to the standby management node. Thus, the operation reliability of the big data integration management platform can be improved.