| CDRS:云存储中一种代价驱动的自适应副本策略 |
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| 引用本文： | 徐婧,杨寿保,王淑玲,刘晓茜.CDRS:云存储中一种代价驱动的自适应副本策略[J].中国科学院研究生院学报,2011,28(6). |
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| 作者姓名： | 徐婧 杨寿保 王淑玲 刘晓茜 |
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| 作者单位： | 中国科学技术大学计算机科学与技术学院,合肥,230026 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863)项目，中国科学技术大学创新基金 |
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| 摘 要： | 针对云存储环境下突出的一些新问题,如网络的广域性与动态性、商业利益的追求、一致性与可用性的权衡等,提出了一种代价驱动的自适应副本策略CDRS.该副本策略通过引 入市场机制中的代价,综合考虑负载平衡及一致性与可用性的均衡,对副本进行自适应的操作,达到最小化副本开销和最大化副本收益的目标.实验结果表明,与传统的副本策略相比,该策略在副本收益以及负载均衡方面有着更大的优势.
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| 关 键 词： | 代价驱动 地理特性 自适应 云存储 |
CDRS:an adaptive cost-driven replication strategy in cloud storage |
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| XU Jing,YANG Shou-Bao,WANG Shu-Ling,LIU Xiao-Qian.CDRS:an adaptive cost-driven replication strategy in cloud storage[J].Journal of the Graduate School of the Chinese Academy of Sciences,2011,28(6). |
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| Authors: | XU Jing YANG Shou-Bao WANG Shu-Ling LIU Xiao-Qian |
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| Institution: | XU Jing,YANG Shou-Bao,WANG Shu-Ling,LIU Xiao-Qian(School of Computer Science and Technology,University of Science and Technology of China,Hefei 230026,China) |
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| Abstract: | Considering the new problems in cloud storage environment,such as wide location,dynamic characteristic,pursuit of commercial interests,and trade-off between consistency and availability,we propose a dynamic cost-driven replication strategy(CDRS).By introducing cost in market mechanism and considering load balancing and the trade-off between consistency and availability comprehensively,this strategy operates adaptively on replication and achieves the goal of minimizing replication cost and maximizing replica... |
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| Keywords: | cost-driven geographic feature adaptive cloud storage |
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