摘要
研究和构造一个可扩展性好及请求命中率高的 Web缓存系统 .通过对 Web缓存定位问题及目前流行的分布缓存系统的分析 ,确定分层缓存系统更有优势 .为了提高分层缓存的可扩展性和请求命中率 ,在保持父子代理之间原有协作关系的同时加强父代理的处理能力 ,提出了一种新的虚拟协作缓存系统 ,即父代理用扩展性好的集群系统实现 ,子代理在缓存的同时加进预取技术 .该虚拟协作缓存系统能满足网络缓存对可扩展性及请求命中率的要求 ,具有可扩展性好、吞吐率高和命中率高的特点 .
The paper has its aim to study and construct Web caching systems with better scalability and higher hit rate. Hierarchical caching system has more advantage than others by analyzing the Web cache location problem and the popular distributed caching systems. In order to improve the scalability and hit rate of the hierarchical caching system, a new virtual cooperative caching system is proposed, based on a hierarchical caching architecture with scalable cluster system as the parent proxy, and prefetching mechanism is added into the child proxies. The new system is provided with better scalability, higher throughput and higher hit rate.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2003年第1期78-82,共5页
Transactions of Beijing Institute of Technology
基金
国家留学基金资助项目 ( 2 130 7D0 5 )
