A Simple Client-Based Hybrid Robust Hash Routing Web Caching System (2HRCS)

摘要

This paper proposes a simple Hybrid Robust Hash Routing Web Caching System(2HRCS) that clients can directly perform object allocation and load balancing without an additional DNS for load balancing. The proposed system reduces the cost of setup and operation by removing DNS that needs to balance the load in the existing system and does the original role of the DNS server for the shared proxies. The proposed system has clients with a consistent hashing method, so it extends its environment to other distributed web caching system that has caches of different capacity. A distributed web caching system is composed and tested to evaluate the performance. As a result, it shows superior performance to consistent hashing systems. Since this system can maintain performance of the existing system and reduce costs, it also has the advantage of constructing medium or small size CDN (Contents Delivery Network).