定期检查点下数据库系统的可用性和性能评估

Twenty-Fifth International Symposium on Fault-Tolerant Computing. Digest of Papers Pub Date : 1995-06-27 DOI:10.1109/FTCS.1995.466983

Reinaldo Vallejos Campos, E. D. S. E. Silva

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引用次数: 5

摘要

检查点回滚和恢复是确保数据完整性、提高可用性和改进面向事务的数据库系统性能的常用技术。检查点频率和系统负载等参数对系统的整体性能有影响，因此建立所研究系统的精确模型非常重要。我们从一个模型中找到系统可用性和事务预期响应时间的表达式，该模型与以前的分析工作不同，它考虑了两个检查点之间恢复时间之间的依赖关系。此外，我们的模型可以包含有关系统资源争用的细节。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Availability and performance evaluation of database systems under periodic checkpoints

Checkpointing roll back and recovery is a common technique to insure data integrity, to increase availability and to improve the performance of transaction oriented database systems. Parameters such as the the checkpointing frequency and the system load have an impact on the overall performance and it is important to develop accurate models of the system under study. We find expressions for the system availability and for the expected response time of the transactions from a model that, unlike previous analytical work, takes into account the dependency among the recovery times between two checkpoints. Furthermore, our model can incorporate details concerning the contention for the system resources.<>

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来源期刊

Twenty-Fifth International Symposium on Fault-Tolerant Computing. Digest of Papers

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