Research and Implementation of a Scalable Distributed Mail System

In this paper,a scalable and distributed mail system technology is proposed.By the way of remote procedure call and dynamic load balance calculation,mails can be stored in multi-servers to overcome the low performance of single CPU and disk I/O,moreover,the faults tolerance function has been implemented by the data on-line backup.All the users can be allocated to various servers according to the user map structure,and rearranged to keep each server working when some servers are halted or new servers are added.The results show that the system's performance is growing linearly with the increased number of servers,and E-mail service can still be kept available in case of some servers shutdown.