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Chapter 11 From Object Replication to Database Replication

机译:第11章从对象复制到数据库复制

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This chapter reviews past research on database replication based on group communication. It initially recalls consistency criteria for object replication, compares them to serializability, a typical consistency criterion for databases, and presents a functional model to reason about replication protocols in general. Within this framework, deferred update replication is explained. We consider two instances of deferred update replication, one relying on atomic commit and the other relying on atomic broadcast. In this context, we show how group communication can simplify the design of database replication protocols and improve their availability and performance by reducing the abort rate.
机译:本章回顾了基于组通信的数据库复制的过去研究。最初,它回顾了对象复制的一致性标准,将它们与可序列化性(数据库的典型一致性标准)进行比较,并提出了一个功能模型来总体上考虑复制协议。在此框架内,解释了延迟更新复制。我们考虑了两个延迟更新复制实例,一个实例依赖于原子提交,另一个实例依赖于原子广播。在这种情况下,我们展示了组通信如何通过降低中止率来简化数据库复制协议的设计并提高其可用性和性能。

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