Reliability analysis of web server cluster systems based on proportional hazards model

作     者：Hou Chunyan Wang Jinsong Chen Chen 侯春燕;王劲松;陈晨

作者机构：School of Computer Science and EngineeringTianjin University of TechnologyTianjin 300384China College of Computer and Control EngineeringNankai UniversityTianjin 300071China 

出 版 物：《Journal of Southeast University(English Edition)》 (东南大学学报（英文版）)

年 卷 期：2018年第34卷第2期

页      面：187-190页

核心收录：

学科分类：081203[工学-计算机应用技术] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：The National Natural Science Foundation of China(No.61402333,61402242) the National Science Foundation of Tianjin(No.15JCQNJC00400) 

主　　题：web server cluster load-sharing proportional hazards model reliability software aging 

摘      要：An approach for web server cluster(WSC)reliability and degradation process analysis is *** reliability process is modeled as a non-homogeneous Markov process(NHMH)composed of several non-homogeneous Poisson processes(NHPPs).The arrival rate of each NHPP corresponds to the system software failure rate which is expressed using Cox s proportional hazards model(PHM)in terms of the cumulative and instantaneous load of the *** cumulative load refers to software cumulative execution time,and the instantaneous load denotes the rate that the users requests arrive at a *** result of reliability analysis is a time-varying reliability and degradation process over the WSC ***,the evaluation experiment shows the effectiveness of the proposed approach.