面向交易实时内存数据库的故障恢复方法  

A Crash Recovery Scheme for Trading-Oriented Memory Resident Real-Time Database

作　　者：张志鸿[1] 王桂萍[2] 王世卿[2] 刘明业[1] 

机构地区：[1]北京理工大学信息科学技术学院计算机科学工程系,北京100081 [2]郑州大学计算机科学系,河南郑州450052

出　　处：《北京理工大学学报》2004年第1期69-73,共5页Transactions of Beijing Institute of Technology

基　　金：河南省科技攻关重大项目(0222020600).

摘　　要：论述交易事务更新交易数据的update-in-place和append-only特征,提出了面向交易主存数据库的一种故障恢复方法,给出恢复管理机构的模型,并讨论了该模型的工作机制.采用活动一致检查点技术和重做事务日志技术,实现了基于数据镜像和可恢复事务日志的故障恢复措施,解决了系统故障恢复的正确性和一致性问题.结果表明,该方法满足面向交易主存数据库失败恢复的需要.Studies the update-in-place and append-only characteristics of trading transaction updating in trading data. Brings forward a crash recovery scheme for trading-oriented main memory resident real-time database. Presents a structure model of the failure recovery manager and discusses its working mechanisms. Adopts action consistent checkpoint techniques and redo logging techniques, and implements the crashing recovery of memory resident real-time database based upon data check-pointing and recoverable transaction logging. Guarantees the correctness and the consistency of the database system recovering from failures. It is indicated that the proposed crashing recovery method is suitable for trading-oriented, main memory resident databases.

关 键 词：实时数据库 故障恢复 检查点 重做事务日志 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]