| 嵌入式实时数据库系统并发控制协议AC-Based OCC-FV研究 |
| |
| 引用本文： | 林东升,刘志成,彭勇. 嵌入式实时数据库系统并发控制协议AC-Based OCC-FV研究[J]. 科技广场, 2011, 0(7): 36-39 |
| |
| 作者姓名： | 林东升 刘志成 彭勇 |
| |
| 作者单位： | 湖南铁道职业技术学院信息工程系,湖南株洲,412001 |
| |
| 基金项目： | 省级课题“高职软件技术专业教学资源库的研究与实践”资助(课题号:XJK08BZC028) |
| |
| 摘 要： | 替代和补偿是实时事务的两个基本特点,也是并发控制的主体,同时给并发控制带来了新的问题。AC-Based OCC-FV协议把替代和补偿综合到乐观并发控制协议OCC-FV中来,对于处于接纳队列中的每个事务,尽可能地选择无冲突替代进入就绪队列,但这只是一个理想情况。如果冲突不可避免,不仅要选择一个合适替代参与并发控制,即使冲突发生时,也要确保系统始终处于一个安全状态。在冲突消解时,结合补偿的特点,对乐观并发控制协议OCC-FV进行了扩展,当事务失败后,立即调度相应补偿事务,以防止系统灾难的发生。
|
| 关 键 词： | 嵌入式实时数据库系统 替代 补偿 并发控制 |
Research of AC-Based OCC-FV:The Concurrency Control Protocol For Embedded Real-time Database System |
| |
| Lin Dongsheng Liu Zhicheng Peng Yong. Research of AC-Based OCC-FV:The Concurrency Control Protocol For Embedded Real-time Database System[J]. Science Mosaic, 2011, 0(7): 36-39 |
| |
| Authors: | Lin Dongsheng Liu Zhicheng Peng Yong |
| |
| Affiliation: | Lin Dongsheng Liu Zhicheng Peng Yong(Department of Information engineering,Hunan Railway Professional Technology College,Hunan Zhuzhou 412001) |
| |
| Abstract: | Alternative and compensation are two basic characteristics of the real-time transaction,also are body of the concurrence control.At the same time,new problems are brought.AC-Based OCC-FV associates alternative and compensation with optimistic concurrency control OCC-FV.For each transaction in accepted queue,An alternative which cause no conflict can be chosen to join the ready queue as soon as possible.This is just a kind of ideal circumstance.If the conflict can not be avoided,a suitable alternative not on... |
| |
| Keywords: | Embedded Real-time Database System Alternative Compensation Concurrency Control |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
