A New Self-Adapting Admission Control Algorithm for Differential Service in Web Clusters

作     者：LIUAn-feng CHENZhi-gang LONGGuo-ping 

作者机构：CollegeofInformationScienceandEngineeringCentralSouthUniversityChangsha410083.HunanChina 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2004年第9卷第5期

页      面：749-754页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：theNationalNaturalScienceFoundationofChina(10375024)andtheHunanNaturalScienceFoundationofChina(03JJY4054) 

主　　题：Web cluster admission control differential service self-similar self-adapting 

摘      要：A new admission control algorithm considering the network self-similar access characteristics is proposed. Taking advantage of the mathematical model of the network traffic admission control which can effectively overcome the self-similar characteristics of the network requests, through the scheduling of the differential service qucue based on priority while at the same time taking into account various factors including access characteristics of requests, load information, etc, smoothness of the admission control is ensured by the algorithm proposed in this paper. We design a non-linear self-adapting control algorithm by introducing an exponential admission function, thus overcomes the negative aspects introduced by static threshold parameters. Simulation results show that the scheme proposed in this paper can effectively improve the resource utilization of the clusters, while at the same time protecting the service with high priority. Our simulation results also show that this algorithm can improve system stability and reliability too. Key words Web cluster - admission control - differential service - self-similar - self-adapting CLC number TP 393 Foundation item: Supported by the National Natural Science Foundation of China (10375024) and the Hunan Natural Science Foundation of China(03JJY4054) Biography: LIU An-feng(1971-), male, Ph. D candidate, majoring in network computing, Web QoS.