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Chapter 2 Replication Techniques for Availability

机译:第2章复制可用性技术

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The chapter studies how to provide clients with access to a replicated object that is logically indistinguishable from accessing a single yet highly available object. We study this problem under two different models. In the first, we assume that failures can be detected accurately. In the second we drop this assumption, making the model more realistic but also significantly more challenging. Under the first model, we present the primary-backup and chain replication techniques. Under the second model, we present techniques based on voting. We conclude with a discussion on reconfiguration.
机译:本章研究如何为客户提供对复制对象的访问,该对象在逻辑上与访问单个但高度可用的对象没有区别。我们在两种不同的模型下研究这个问题。首先,我们假设可以准确地检测到故障。在第二篇文章中,我们放弃了这一假设,使模型更加实际,但也更具挑战性。在第一个模型下,我们介绍了主备份和链复制技术。在第二个模型下,我们提出基于投票的技术。我们以关于重新配置的讨论作为结束。

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