【摘要】 大型分布式系统通常需要在异地的数据库中存储同一数据的不同副本,不同副本之间需要维护数据的一致性。文章讨论了维护数据一致性的两种方法:消息队列法和复制控制法,并分别介绍了使用IBMMQSeries消息队列和MicrosoftSQLServer复制机制来维护数据一致的实现过程,对比分析了二者在实际应用中各自的特点,以及在理论上的技术差异。更多还原

【Abstract】 Different copies of data should be stored in different databases in the large-scale distributed system,and data consistency of different copies should be maintained.Two methods of maintenance are discussed here.One is using Message Queue,the other is using Database Replication.The realization processes of using IBM MQ Series and Microsoft SQL Server Replication are introduced.The characteristics of each method and the technique differentiae between them are analyzed.更多还原