| 云计算中的服务可用性保障机制简 |
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| 引用本文： | 沈时军,刘欣然,张鸿,朱春鸽.云计算中的服务可用性保障机制简[J].通信学报,2014,35(2):202-206. |
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| 作者姓名： | 沈时军 刘欣然 张鸿 朱春鸽 |
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| 作者单位： | 1. 国家计算机网络应急技术处理协调中心，北京 100029；2. 北京邮电大学 信息安全中心，北京 100876 |
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| 基金项目： | 国家重点基础研究发展计划(“973”计划)基金资助项目(2011CB302605) |
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| 摘 要： | 提出了一种基于滑动窗口的资源预留SWRR(sliding window based resource reservation)算法，它将预留资源在整个资源池中所占的比例称为窗口。窗口的“滑动”包含2层含义：1）窗口大小动态变化；2）窗口中的资源动态刷新。SWRR已被应用于一个大型的云计算应用平台。实验数据表明，SWRR通过合理资源预留，在兼顾所有任务调度的基础上，可为特定用户提供有效的服务可用性保障。
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| 关 键 词： | 云计算 资源预留 滑动窗口 服务可用性 |
| 收稿时间： | 5/2/2013 12:00:00 AM |
Guaranteeing service availability in cloud computing |
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| Shi-jun SHEN,Xin-ran LIU,Hong ZHANG,Chun-ge ZHU.Guaranteeing service availability in cloud computing[J].Journal on Communications,2014,35(2):202-206. |
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| Authors: | Shi-jun SHEN Xin-ran LIU Hong ZHANG Chun-ge ZHU |
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| Institution: | 1. National Computer Network Emergency Response Technical Team/Coordination Center of China, Beijing 100029, China;2. Information Security Center, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | A sliding window based resource reservation (SWRR) algorithm was proposed, in which a window is defined as the proportion of the reserved resources among all. The sliding of the window is twofold, adaptively window resizing, and dynamically window content refreshing. SWRR was applied to a large cloud computing platform. Experiments reveal that SWRR can provide high service availability for specific users while taking all users into account by proper resource reservation. |
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| Keywords: | cloud computing resource reservation sliding window service availability |
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