摘要： 提出了移动事务实时提交协议(MTRTC)和多版本乐观并发控制协议(MVOCC)处理移动分布式实时事务。MVOCC有效性检查分为局部有效性检查和全局有效性检查，采用动态调整串行次序，避免了不必要的事务重启动，改善了只读事务的响应时间。MTRTC是一个实时提交协议，减少了通信信息。实验结果表明结合MVOCC和MTRTC事务处理协议优于其它事务处理协议。
关键词:
移动数据库系统,
移动分布实时事务,
多版本乐观并发控制,
实时提交,
广播磁盘
Abstract: Multiversion optimistic concurrency control(MVOCC) protocol and mobile transaction real-time commit(MTRTC) protocol are presented for mobile distributed real-time database systems(MDRTDBSs). In MVOCC transaction, validation is performed at two levels: local validation and global validation. Dynamic adjustment of serialization order is adopted to avoid unnecessary restarts of transactions. The MTRTC is a real-time commit protocol and significantly reduces the message cost. The results of experiment show that transaction processing protocol combing MVOCC with MTRT performs better than other transaction processing protocols.
Key words:
Mobile database systems,
Mobile distributed real-time transactions,
Multiversion optimistic concurrency control,
Real-time commit,
Broadcast disk
中图分类号:
雷向东;赵跃龙;陈松乔;袁晓莉. 移动分布式数据库中的实时事务处理[J]. 计算机工程, 2007, 33(11): 95-97.
LEI Xiangdong; ZHAO Yuelong; CHEN Songqiao; YUAN Xiaoli. Real-time Transaction Processing in Mobile Distributed Database Systems[J]. Computer Engineering, 2007, 33(11): 95-97.