An implementation of the client-based distributed web caching system

Abstract

A distributed web caching system can supply fast and stable transmission of information to the user avoiding a congested network section, storing and supplying the content that the user requested to cache by distributing and sharing a cache like a proxy server. It is located near the user. This paper proposes a simple client-based distributed web caching system (2HRCS) that can assign an object and control the load by using the direct connection of a client to the shared caches without the help of the Additional-DNS. In addition, this paper investigates the hash routing schemes such as CARP (Cache Array Routing Protocol) and GHS (Global Hosting System) which are shared web cache protocols. They need the Additional-DNS for the load balancing. The proposed system in this study makes the existing system simpler by removing the Additional-DNS and reducing the DNS query delay time for all objects. Moreover, the overhead of DNS can be lowered by reducing the general use of the DNS query through the direct object assignment for the client browser. A hash routing scheme system and the proposed system are compared in terms of the average delay time according to the object sizes. © Springer-Verlag Berlin Heidelberg 2005.