Abstract
Based on our survey of recent articles, there is little research being conducted into quantitative analysis of the load balancing of Web server clusters. In this paper, we propose a quantitative analysis for DNS-based server clusters. We also propose a two-pass load-balancing method for determining the load balance area of these clusters. The first pass uses the lookup table instead of a complicated computation for obtaining the load balancing of the Web service requests. The second pass also utilizes a lookup table by a precomputed Hessian matrix to obtain the load balancing. In addition, we compare the relative performance of dispatcher-based and DNS-based server clusters using queuing theory, analysis, and simulation, and we compare the measurement results using benchmarks. To increase the simulation performance we have designed a simulation module to promptly locate the load balancing, with a potential improvement of 36.58% over the average system response time.
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