| Summary: | 碩士 === 大同大學 === 資訊工程學系(所) === 94 === As the Internet grows rapidly, it has also created the need for more and faster web servers capable of serving millions of users. As a matter of fact, services to large number of users can not be able to be handled by a single server. Thus, cluster of servers is used increasingly to build high-capacity web site.
In this thesis, a series of experiments with several load balancing methods are performed. There are many configurations to construct an Internet cluster system. The configurations include dispatcher-based approach, parallel filtering approach, and round-robin Domain Name Server (RR-DNS) approach.
Many papers have proposed methods to make the load balancing system more efficient. In this thesis,we focus on the effect of dynamic content on a load balancing system. We setup a burst mode service request environment; that is, a considerable amount of requests which are generated in a short period of time. Weighted round robin with weight according to the performance of the servers is used to make heterogeneous servers to cooperate together effectively. We test various cluster configurations with different loading conditions. The advantage and shortage of each configuration are also presented.
These experimental studies help us to find out the problems and the cause of the problems in the load balancing architectures with dynamic content web service. With these findings, we can improve the performance of load balancing architectures for the burst mode service requests and for heterogeneous servers in the load balancing system.
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