一种基于DHT的Web缓存共享方法  

Web caching system based on DHT architecture

作　　者：刘建[1,2] 孙晓辉[1,2] 倪宏[2] 

机构地区：[1]中国科学院研究生院,北京100190 [2]中国科学院声学研究所,北京100190

出　　处：《计算机应用研究》2008年第12期3804-3806,3812,共4页Application Research of Computers

基　　金：国家下一代互联网示范工程资助项目(CNGI-04-15-2A)

摘　　要：提出了一种基于DHT技术的Web缓存共享方法。该方法使得企业网络中所有节点能够相互共享浏览器中的本地缓存,从而形成一个高效的、大规模的分布式缓存共享系统。针对Web缓存共享的系统响应迅速的要求提出一种路由步长为O(2)的路由协议,保证Web查询请求最多只经过一次转发就可到达目标节点。性能分析和仿真实验的结果证明其在路由可靠性、命中率、系统响应和缓存代价方面均有满意的效果。This paper proposed a Web caching plan based on DHT, whose underlying ideology was that all the terminals in an Intranet were able to share their local caching to constitute a large-scale, effective distributed Web caching system. Given the responding rapidly characteristic of Web caching, proposed a new routing scheme with a constant O （2） hop per lookup request, with which a Web query request could reach the target node within only one transfer. Furthermore, the evaluation results prove that it achieves a satisfied performance in routing reliability, hits-ratio, latency of response and caching cost.

关 键 词：分布式哈希表 WEB缓存 命中率 系统响应 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]