Abstract

Data replication is used to enhance the reliability, availability, and throughput of database systems at a price of increased complexity and cost of data updates. In many cases, data storage systems that exploit replication use relaxed consistency criteria. This survey describes different replication schemes and discusses several consistency models, protocols, and techniques designed to support consistency in replicated systems.

中文翻译：

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分布式系统中的复制：模型，方法和协议

摘要

数据复制用于提高数据库系统的可靠性，可用性和吞吐量，但代价是增加了复杂性和数据更新成本。在许多情况下，利用复制的数据存储系统会使用宽松的一致性标准。该调查描述了不同的复制方案，并讨论了旨在支持复制系统中一致性的几种一致性模型，协议和技术。