一种检测分布式数据库中不一致性的方法

分布式数据库管理系统（ＤＤＢＭＳ）应保证系统中所有场地上的数据库的一致性，特别是数据库进行复制后，应保证一个数据项的所有副本之间的相互一致。网络分割是一种较难处理的失败，当出现网络分割时，各场地的数据库往往出现不一致。这就要求系统能够检测了不一致并以加以处理，就网络分割所引起的不一致性进行分析，提出检测方法，详述思想及算法。

An Approach to Detect Inconsistency in Distributed Database

A distributed database management system should guarantee the consistency of databases at all sites in the system. In particular when the database is replicated, mutual consistency among all copies of an item should be maintained. Network partitioning is a kind of failure to deal with difficultly. When network partitioning takes place, inconsistency among databases at all sites will merge. Thus a natural requirement of the system is that it can detect and deal with inconsistency. We analysis the inconsistency caused by network partitioning and present a scheme and its algorithm in this paper.