An Adaptive Fault-tolerant Mechanism for Web Services Based on Contezt Awareness
Dependability and adaptability are both the important issues of Web services. With the consideration of the features of Web services, an adaptive fault-tolerant mechanism is presented. It is based on a two-aspect context model including functional context and network context. Based on the context model, the paper designs an adaptive fault-tolerant framework for Web services, which involves in a series of fault-tolerant technologies, including construction of a layered failure detection system, dynamically adjustable failure detection, and an adaptive service restarting process. The experimental results show the effect of the adaptive mechanism, such as reducing the unnecessary restarting operations and promoting the accuracy of failure detection.
Web services fault tolrance contezt awareness
Ning-jiang Chen Pan Lin
College of Computer, Electronic, and Information, Guangxi University Nanning, P.R.China
国际会议
第四届国际计算机新科技与教育学术会议(2009 4th International Conference on Computer Science & Education)
南京
英文
898-903
2009-07-25（万方平台首次上网日期，不代表论文的发表时间）