移动分布式实时事务实时原子提交  

Real-time atomic commitment for mobile distributed real-time transactions

作　　者：肖迎元[1] 刘云生[1] 王洪亚[1] 刘小峰[1] 廖国琼[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《计算机应用》2005年第11期2641-2644,共4页journal of Computer Applications

基　　金：国家自然科学基金资助项目(60203017);国家十五国防预研重点项目(413150403);国防预研基金项目(51415030203JW05);中国博士后科学基金资助项目(2003034482)

摘　　要：形式地给出了移动分布式实时事务实时原子提交协议的定义,在此基础上提出了适合于移动分布式实时事务的实时原子提交协议:一阶段实时原子提交协议(1PRACP)。1PRACP通过参与者与协调者的一次消息交换,在一个阶段完成移动分布式实时事务提交活动;结合超时恢复处理协议,1PRACP能避免由于站点故障或网络通信链路故障而导致的阻塞。对1PRACP进行了性能比较和评测,显示了它在各方面的优越性。The formal definition of real-time atomic commitment of mobile distributed real-time transactions was introduced. On the basis of the above definition, one-phase real-time atomic commitment protocol （ 1 PRACP） suitable for mobile distributed real-time transactions was presented. According to 1PRACP, the commitment procedure of a mobile distributed real-time transaction was completed in one-phase through a one-time message exchange between participant and coordinator. Combined with overtime recovery processing protocol, 1PRACP can be free of the blocking which is caused by site failure or communication link failure. The results of performance comparison and evaluation show that 1 PRACP can improve the performances of mobile distributed real-time database systems.

关 键 词：移动分布式实时数据库 移动分布式实时事务 实时原子提交 截至期 优先级 

分 类 号：TP301[自动化与计算机技术—计算机系统结构] TP311.13[自动化与计算机技术—计算机科学与技术]