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中国科学院大学学报 ›› 2013, Vol. 30 ›› Issue (1): 90-97.DOI: 10.7523/j.issn.1002-1175.2013.01.014

• 计算机科学 • 上一篇    下一篇

云存储中一种自适应的副本一致性维护机制

王喜妹1, 杨寿保1, 王淑玲1, 郭良敏1,2   

  1. 1. 中国科学技术大学计算机科学与技术学院, 合肥 230026;
    2. 安徽师范大学计算机科学与技术系, 安徽 芜湖 241000
  • 收稿日期:2011-11-29 修回日期:2012-02-23 发布日期:2013-01-15
  • 通讯作者: 杨寿保
  • 基金资助:

    国家自然科学基金(60673172);国家高技术研究发展计划(863)项目(2006AA01A110);安徽省高等学校青年人才基金(2011SQRL026)和安徽省高校省级科学研究项目(KJ2011Z142)资助

Adaptive replica consistency mechanism for cloud storage

WANG Xi-Mei1, YANG Shou-Bao1, WANG Shu-Ling1, GUO Liang-Min1,2   

  1. 1. School of Computer Science and Technology, University of Science and Technology of China, Hefei 230026, China;
    2. Department of Computer Science and Technology, Anhui Normal University, Wuhu 241000, Anhui, China
  • Received:2011-11-29 Revised:2012-02-23 Published:2013-01-15

摘要:

提出一种基于应用和用户需求的自适应的副本一致性维护机制,包括更新一致性和归并一致性.系统根据形式化的一致性需求实时调整一致性机制,达到副本一致性、可用性和系统性能之间的动态平衡.实验结果表明,该机制能够在保证一致性需求的情况下,显著降低操作代价并提高副本可用性.

关键词: 自适应, 副本, 一致性, 平衡, 云存储

Abstract:

An adaptive replica consistency mechanism is proposed based on consistency requirements, including update consistency and reconciliation strategy. System regulates replica consistency mechanism dynamically according to consistency requirements so that a dynamic balance between consistency, availability, and system performance is achieved. Evaluation results show that the proposed mechanism decreases the amount of operation significantly while guarantees consistency requirements and promotes replica availability.

Key words: adaptive, replica, consistency, balance, cloud storage

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