The Implement Of Data Transfer Platform Based On The Grid Technology

Under the background of "Sichuan Self-Examine Management System" project, this paper introduces the developing processes and methods of Data Transfer System (Glide) implemented in the project. Data Transfer System (Glide) updated gradually from the version based on FTP and the version based on Web Service, and for that there exist problems such as firewall package filtering and information-security in the version based on FTP, and for that the version based on Web Service can not keep state for each client and can not realize Breakdown Point Relay and can not balance the loading. So this paper puts forward Data Transfer System (Glide) based on the Grid to overcome the shortcomings mentioned above. This paper demonstrates in detail the architecture and implementing methods of Data Transfer System (Glide) based on the Grid. In the same time, the three versions based on FTP, Web Service, and Grid were tested and compared, and the result shows: the transfer speed of version based on FTP is the highest, and the version based on Web Service is the second highest, and the slowest one is the version based on Grid. The speed difference of the last two versions is small. The transfer speed of the first version generally is fifty times of speeds of last two versions, and this result is completely the same with theory analysis.