Research And Design On Web Cache Systembased On Proxy Server

In recent years, the Internet has been developing in high-speed, which is reflected in many aspects, such as the sharp increase in the number of Internet users, the diversification of network services and higher demands of network users for the types and quality requirements of the network and so on. However, this fast development brings lots of troubles. For example, owing to several factors, the users may not receive response in reasonable time after sending their requests in main network of limited bandwidth and servers of limited resources. Therefore, this paper tends to import a cache system service with intermediate nodes in single network service.On the basis of Web cache system, this paper has done in-depth research and analysis on the cache management,replacement and prefetch of the original proxy cache server, and thus bring in the cache management policy based on area hot spot diffusing. Two space saving algorithms in proxy cache are also designed for different situations to eliminate the duplicated files.More research on cache prefetching model of hot spot discovery is done.In the end, the new web cache system is designed and implemented.