嵌入式实时数据库系统并发控制协议A-Based OCC-WAIT50  

A-Based OCC-WAIT50: The Concurrency Control Protocol For Embedded Real-time Database System

作　　者：林东升[1] 

机构地区：[1]江西财经大学信息管理学院,南昌330013

出　　处：《科技广场》2006年第7期43-45,共3页Science Mosaic

摘　　要：本文主要是把替代引入到乐观并发控制协议OCC-WAIT50中来,提出了一种实时并发控制协议A-BasedOCC-WAIT50。由于各替代的资源需求不同,所以,参与资源竞争受阻的机会也不同。对于处于接纳队列中的事务,选择一个最优替代参与并发控制,可以避免或减少冲突的发生。而当冲突不可避免时,再采用乐观并发控制协议OCC-WAIT50进行冲突消解。A real-time concurrency control protocol A-Based OCC-WAIT50 is proposed in this paper, which associate alternative with optimistic concurrency control protocol OCC-WAIT50, Because resources which each alternative needs is different, when participating resources competition, the opportunity to be blocked is also different. For each transaction in accepted queue, the conflict can be avoided or reduced by choosing the best alternative to join the concurrency control, when conflict can not be avoided, then the optimistic concurrency control OCC-WAIT50 is adopted to resolving the conflict.

关 键 词：嵌入式实时数据库系统 乐观并发控制 替代 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]