提出并实现了一种数据库服务容灾系统,该系统监控主数据库的操作,并将这些操作在远程备用数据库服务器上进行数据重做操作,从而实现数据同步。同时系统对主数据库进行失效检测,并能在其故障后,在较短的时间内实现数据库的服务漂移,保证服务不中断,提高数据库的服务容灾能力。
A service disaster tolerant system for database system is presented. This system monitors the operations on local primary database server. For data synchronization these operations will be carried out on the remote back-up database server. When the primary database is damaged, the service will be immediately migrated to a back-up database to be continued