分布式实时事务的原子提交  

ATOMIC COMMITMENT FOR DISTRIBUTED REAL-TIME TRANSACTIONS

作　　者：刘云生[1] 廖国琼[1] 

机构地区：[1]华中科技大学计算机学院,武汉430074

出　　处：《计算机研究与发展》2002年第12期1735-1739,共5页Journal of Computer Research and Development

基　　金：国家自然科学基金 (60 0 73 0 45 );国防预研基金 (0 0 J15 .3 .3 .JW0 5 2 9)资助

摘　　要：分布式实时数据库系统中 ,事务除具有传统数据库事务的 ACID特性外 ,还具有定时限制 (如截止期等 ) .传统提交协议及已研究出的实时提交协议都不保证分布式实时事务的原子性 .结合实时事务截止期要求 ,描述了分布式实时事务的原子提交及其正确性准则 ;给出了适合于固 (或软 )实时事务的原子提交协议 RTACP及其处理过程并证明了其正确性 .还对 RTACP进行了性能比较和评价 。As transactions in distributed real time database systems have to meet the timing requirements, such as deadlines, in addition to the well known characteristics of ACID for transactions in conventional database systems, the traditional transaction commitment protocols and real time commitment protocols developed could not guarantee the atomicity of real time transaction. In this paper, atomic commitment of distributed real time transactions and its correctness criteria, taking deadlines into account, are described first. Then a real time atomic commitment protocol-RTACP for distributed firm and soft deadline transactions is presented, which could ensure the atomicity of distributed real time transactions and improve the performance of distributed real time database systems.

关 键 词：分布式实时事务 原子提交 分布式实时数据库系统 并发控制 

分 类 号：TP311.133[自动化与计算机技术—计算机软件与理论]