摘要
Web集群技术是解决Web服务器系统容量和伸缩能力的重要方法。该文分析了影响Web集群系统性能的主要因素,并提出了一种基于内容的负载均衡算法。该算法以加权负载量来评估服务器负载状态,并通过保证负载局部性来提高cache命中率,从而获得好的负载均衡效果。仿真实验证明,该算法具有较好的适应能力和伸缩性。
Web cluster technology is the important method in solving the capacity and scalability of web server system.This paper analyses the main factors which effect the performance of web cluster system,and proposes a content-aware load balancing algorithm,which evaluates the loading status of the servers using the weighted load and improves the cache hit rate through load locality guarantee,so the good load balancing effect can be reached.Simulation experiments show that the algorithm has good adaptability and scalability.
出处
《计算机工程与应用》
CSCD
北大核心
2002年第19期40-42,64,共4页
Computer Engineering and Applications
基金
重庆市科技攻关项目(编号:2001.6715)
