| 基于检验点技术的云服务可靠性度量模型 |
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| 引用本文： | 何利,赵志元.基于检验点技术的云服务可靠性度量模型[J].重庆邮电大学学报(自然科学版),2012,24(6):699-702. |
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| 作者姓名： | 何利 赵志元 |
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| 作者单位： | 重庆邮电大学计算机学院,重庆,400065 |
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| 基金项目： | 重庆市自然科学基金（CSTC2012jjA40039）；重庆市教委科学技术研究项目（KJ120508） |
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| 摘 要： | 可靠性是云服务的典型特性之一.在云计算环境下提出了一种基于检验点回卷策略的云服务可靠性度量模型,该模型针对云服务系统中虚拟机任务计算节点的故障失效会导致系统服务可靠性发生变化的问题,基于检验点回卷策略建立了云服务可靠性度量模型.通过理论推导证明了度量模型的正确性,并证明了检验点设置时间按一定指数值增长时,服务可靠性可以得到优化.
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| 关 键 词： | 云服务 可靠性 检验点回卷策略 度量模型 |
| 收稿时间： | 2012/10/22 0:00:00 |
Reliability measurement model of cloud service based on checkpointing technique |
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| HE Li,ZHAO Zhiyuan.Reliability measurement model of cloud service based on checkpointing technique[J].Journal of Chongqing University of Posts and Telecommunications,2012,24(6):699-702. |
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| Authors: | HE Li ZHAO Zhiyuan |
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| Institution: | School of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065,P.R.China |
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| Abstract: | Reliability is one of the typical characteristics of cloud services. In this paper, a reliability measurement model of cloud service is proposed.It is based on checkpointing rollback strategy on the cloud computing environment, which is aimed at service reliability problems by the failure of virtual machine task computing node on cloud service system, and based on the checkpoint rollback strategy. It is proved that the measurement model is correct by the derivation, and if the checkpoint time sequence is exponentially distributed, service reliability can be optimized. |
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| Keywords: | cloud services reliability checkpointing rollback strategy measurement model |
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