Application Server Aging Model and Multi-Level Rejuvenation Strategy Using Semi-Markov Process

作     者：ZHAO Tianhai QI Yong SHEN Junyi HOU Di ZHENG Xiaomei LIU Liang 

作者机构：School of Electronics and Information EngineeringXi＇an Jiaotong University Xi＇an 710049 Shaanxi China IBM China Research Laboratory Beijing 100094China 

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：2006年第11卷第5期

页      面：1209-1215页

学科分类：081802[工学-地球探测与信息技术] 08[工学] 081105[工学-导航、制导与控制] 0818[工学-地质资源与地质工程] 0804[工学-仪器科学与技术] 0811[工学-控制科学与工程] 

基　　金：Supported by the National Natural Foundation ofChina (60473098) IBMChina Research Lab Joint Project 

主　　题：application server software rejuvenation reliability software maintenance 

摘      要：Aiming at the characteristic of the dependency between the application components and the application server platform, a rejuvenation strategy with two different levels of rejuvenation granularities is put forward in this paper including the application component reiuvenation and the application server system rejuvenation. The availability and maintenance cost functions are obtained by means of establishing the application server aging model and the boundary condition of the optimal rejuvenation time is analyzed. Theory analysis indicates that the two-level rejuvenation strategy is superior to the traditional single level one. Finally, evaluation experiments are carried out and numerical result shows that compared with the traditional rejuvenation policy, the rejuvenation strategy proposed in this paper can further increase availability of the application server and reduce maintenance cost.