E-RTDB的恢复子系统的设计与实现  

Design and implementation of recovery subsystem of E-RTDB

作　　者：李坤[1] 李春晖[2] 王永炎[1] 王宏安[1] 

机构地区：[1]中国科学院软件研究所人机交互技术与智能信息处理实验室,北京100080 [2]中国石油兰州石化公司自动化研究院,甘肃兰州730060

出　　处：《计算机工程与设计》2008年第1期119-122,共4页Computer Engineering and Design

摘　　要：嵌入式实时环境下,内存和CPU资源比较少,并且数据容易受到各种意外情况的破坏。根据这些特点为E-RTDB设计了一个高效的恢复子系统,包含日志管理器、检查点过程、恢复过程等,提出了一种动态自适应的检查点算法,综合考虑系统性能和恢复功能,解决了各种情况下的故障恢复问题。性能测试表明该子系统性能较高。There are little resources such as memory and CPU in embedded real time environment, and data is often destroyed by unexpected failures and disasters, An effective recovery subsystem is designed for E-RTDB based on the specialty of the embedded real time environment, including log manager, checkpoint, recovery, etc, and a dynamic adaptive checkpoint algorithm taking system performance and recovery functionality into account is proposed, the disaster recovery problem is successfully solved, Tests show that it has a good performance.

关 键 词：嵌入式 主内存数据库 日志管理 动态自适应检查点 恢复 

分 类 号：TP131.132[自动化与计算机技术—控制理论与控制工程]