基于ARX 的应用服务器老化建模及系统再生策略.pdf

基于 ARX 的应用服务器老化建模及系统再生策略 1,2 1 1 徐文彬 ，齐 勇 ，侯 迪 1．西安交通大学电子与信息工程学院，西安 710049 E-mail: xwb@ 2 ．常熟理工学院计算机科学与工程学院，常熟 215500 E-mail: qiy@ 摘 要:为了研究应用服务器的性能衰退情况，设计了多种场景的客户请求程序和服务器端监控程序，记录了5 类各种参数， 首先运用主成分分析法实现降维，然后对应用服务器中间件的主要性能指标建立多维时间序列分析模型。根据拟合的模型， 给出了系统再生方案。实测数据及分析结果表明，所建立的软件老化模型能较好地拟合原始数据，预测结果可以作为系统 再生动作的触发依据。 关键词:时间序列,软件老化，ARX模型，软件再生 ARX-based Aging Modeling of Application Server and System Rejuvenation Scheme 1,2 1 1 Wenbin Xu ，Yong Qi ，Di Hou 1．School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China E-mail: xwb@ 2 ．Department of Computer Science and Engineering, Changshu Institute of Technology, Changshu 215500, China E-mail: qiy@ Abstract: In order to study the performance decline of application servers, this paper designs the customer requesting procedures and server monitoring programs for multi-scenes, which records five types of parameters, and the dimensionality reduction is implemented by using the Principal Component Analysis (PCA) firstly, then the multidimensional time series analysis model for the key performance indexes of application server middle-ware is built in this paper. The paper also proposes a kind of system rejuvenation scheme according to the fitting model. Measuring data and analysis results show that th