计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (5): 141-143.DOI: 10.3778/j.issn.1002-8331.2009.05.041

• 数据库、信号与信息处理 • 上一篇    下一篇

移动计算环境下数据复制一致性研究

孙 红,姚新苗   

  1. 上海理工大学 计算机与电气工程学院,上海 200093
  • 收稿日期:2008-03-04 修回日期:2008-06-11 出版日期:2009-02-11 发布日期:2009-02-11
  • 通讯作者: 孙 红

Research on consistency of replicated data in mobile computing environments

SUN Hong,YAO Xin-miao   

  1. Institute of Computer and Electrical Engineering,University of Shanghai for Science & Technology,Shanghai 200093,China
  • Received:2008-03-04 Revised:2008-06-11 Online:2009-02-11 Published:2009-02-11
  • Contact: SUN Hong

摘要: 通过对移动计算环境下已复制数据一致性的研究,提出了一种新的数据复制控制协议。该协议对已复制数据库对象的读操作或写操作等临时信息进行探索,使单副本可串行化和最终一致性两个标准可以同时得到保证。文章最后还对协议的正确性进行了分析。

关键词: 移动计算环境, 数据复制, 单副本可串行化, 最终一致性

Abstract: This paper is based on the study of the replicated data consistency in mobile computing environments and proposes a new data replica control protocol.This protocol explores the temporal information about the moment where a replicated database object is read or updated,so that the two criterions of one-copy serializability and eventual consistency can be guaranteed at the same time.Finally,this paper analyzes the correctness of protocol.

Key words: mobile computing environments, data replication, one-copy serializability, eventual consistency