云存储中一种自适应的副本一致性维护机制

Adaptive replica consistency mechanism for cloud storage

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.

An adaptive replica consistency mechanism is proposed based on consistency requirements, including update consistency and reconciliation strategy. System regulates replica 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.