远程文件差异同步系统的设计与实现  

Design and implementation of remote file synchronization system based on difference

作　　者：汤晓迪[1] 马晓旭[1] 宁静[1] 刘晓洁[1] 

机构地区：[1]四川大学计算机学院,四川成都610064

出　　处：《计算机工程与设计》2010年第20期4389-4392,共4页Computer Engineering and Design

基　　金：国家自然科学基金项目(60873246);教育部创新工程重大项目培育基金项目(708075);国家教育部博士点基金项目(20070610032)

摘　　要：设计并实现一种远程文件差异同步系统(remote file synchronization system,RFSS),在系统中,根据传统rsync算法设计了一种带冲突检测的Hash表查找方法以提高计算效率,并且在服务器端采用了加解密存储的缓冲区管理方法解决了"雪崩效应"。实验结果表明,采用该方法有效地提高了计算效率,降低了网络流量,从而实现了高效、快速和安全的远程文件同步。A remote file synchronization system-RFSS is designed and implemented. In the system, a Hash table lookup method with conflict detection is designed according to the traditional rsync algorithm to improve computational efficiency, and the encryption and decryption buffer memory management method in the server-side to solve the ＂avalanche effect＂. In this way, it can calculate the file difference more quickly, the amount of calculation on the server is brought down and the data transmitted on the network is reduced.

关 键 词：文件备份 RSYNC算法 差异计算 文件重构 安全性 

分 类 号：TP309.3[自动化与计算机技术—计算机系统结构]