Web集群服务器中分发策略的仿真与分析  

Simulation and Analysis of Dispatching Policies in Web Server Cluster

作　　者：熊智[1] 晏蒲柳[1] 郭成城[1] 

机构地区：[1]武汉大学电子信息学院,武汉430079

出　　处：《系统仿真学报》2007年第3期589-592,共4页Journal of System Simulation

基　　金：国家自然科学基金项目(90204008);武汉市重大科技攻关项目(20001001004)。

摘　　要：在Web集群服务器中,基于内容的请求分发策略可分为两种:混合分发策略和隔离分发策略。用随机Petri网对两种分发策略分别进行了建模与分析,并用随机Petri网软件包SPNP对模型进行了仿真,仿真结果表明,只要合理地配置资源,隔离分发策略优于混合分发策略。测试也表明,隔离分发策略的性能优于混合分发策略。There are two kinds of content-aware dispatching policies in web server cluster： segregation dispatching policy and mixture dispatching policy. Stochastic Petri Net （SPN） was used to model and analyze the two policies, and Stochastic Petri Net Package （SPNP） was used to simulate their models. The simulation results show that segregation policy is better than mixture policy if configured properly. In addition, practical tests also show that the performance of segregation policy is better than that of mixture policy.

关 键 词：WEB集群服务器 分发策略 随机PETRI网 随机Petri网软件包 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]