| 内存数据库故障恢复策略研究 |
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| 引用本文： | 张效尉,王大羽. 内存数据库故障恢复策略研究[J]. 适用技术之窗, 2012, 0(4): 57-60 |
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| 作者姓名： | 张效尉 王大羽 |
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| 作者单位： | 周口师范学院计算机科学与技术学院,河南周口466001 |
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| 基金项目： | 河南省教育厅自然科学研究计划项目（2007520061） |
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| 摘 要： | 内存数据库存在于易失性内存中,数据较易丢失,故障恢复部件至关重要。考虑系统环境限制,设计了一种利用日志与影子页面技术相结合的系统恢复模型,讨论了日志协议、模糊检查点策略、重装算法、恢复技术等模块的实现方法。该方法无需额外硬件的支持,日志记录数量少,检查点与事务处理并发执行,重装和恢复过程快速,极大地提高了内存数据库的恢复效率。
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| 关 键 词： | 内存数据库 日志 检查点 重装 恢复 |
Research on Memory Database Failure Recovery Strategies |
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| Zhang Xiaowei Wang Dayu. Research on Memory Database Failure Recovery Strategies[J]. Science & Technology Plaza, 2012, 0(4): 57-60 |
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| Authors: | Zhang Xiaowei Wang Dayu |
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| Affiliation: | Zhang Xiaowei Wang Dayu(School of Computer Science and Technology,Zhoukou Normal University, Henan Zhoukou 466001) |
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| Abstract: | Memory database exists in volatile memory, and the data is easy to lose, thus failure recovery com- ponent is crucial. Considering the constraints of system environment, this paper designs a kind of system recovery model which combines log with shadow page technique, discusses the implementation methods of log protocol, fuzzy checkpoint strategy, reload algorithm, and restore technology and so on. This method does not need addition- al hardware support, and with the advantages of few log record numbers, checkpoint and transaction process paral- lel execution, quickly reload and recovery process, it greatly enhances the recovery efficiency of memory database. |
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| Keywords: | Memory Database Log Checkpoint Reload Recovery |
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