数据共享系统的恢复概念

[1991] Digest of Papers. Fault-Tolerant Computing: The Twenty-First International Symposium Pub Date : 1991-06-25 DOI:10.1109/FTCS.1991.146687

E. Rahm

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引用次数: 31

摘要

解决了在数据共享系统中必须解决的崩溃和媒体恢复问题。由于对缓冲区管理和并发控制等其他功能的依赖，恢复变得复杂。此外，还将构建一个全局日志文件，其中按时间顺序反映已提交事务的修改。针对松散耦合的数据共享系统，提出了采用主拷贝方法进行并发/一致性控制的日志和恢复协议。与现有数据共享系统的比较表明，该协议在正常处理过程中具有较高的性能，在恢复过程中具有较高的效率，提供了较高的可用性。

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Recovery concepts for data sharing systems

Crash and media recovery problems that have to be addressed in data sharing systems are addressed. Recovery is complicated by dependencies on other functions such as buffer management and concurrency control. Furthermore, a global log file is to be constructed where the modifications of committed transactions are reflected in chronological order. Logging and recovery protocols that employ the primary copy approach for concurrency/coherence control are proposed for loosely coupled data sharing systems. A comparison with existing data sharing system shows that the protocols support high performance during normal processing as well as efficient recovery that provides high availability.<>

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[1991] Digest of Papers. Fault-Tolerant Computing: The Twenty-First International Symposium

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