DATA SYNCHRONIZATION METHOD FOR MAIN AND STANDBY MACHINES OF STATION APPLICATION SERVER

Disclosed in the present invention is a data synchronization method for main and standby machines of a station application server. The data synchronization method comprises the following steps: after the standby machine establishes communication with the main machine, the standby machine receives initial data sent by the main machine and stores the initial data in a local file of the standby machine, so that dual-machine data synchronization in an initial state is achieved; and the main machine receives, in real time, message data sent by a station terminal device and stores the message data in a local file of the main machine, then the message data is sent to the standby machine in a polling mode, and the standby machine receives the message data and stores the message data in the local file of the standby machine, so that dual-machine data synchronization is achieved. According to the present invention, the data synchronization between the main machine and the standby machine is achieved, and it can ensured