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›› 2013, Vol. 30 ›› Issue (1): 90-97.DOI: 10.7523/j.issn.1002-1175.2013.01.014

• Research Articles • Previous Articles     Next Articles

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 Online:2013-01-15

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

CLC Number: