我的人生,第一次拥有了一种consistency 。 For the first time in my life, I felt consistency . 一致性范围(consistency spectrum)的案例. 我认为有时候还不错,有时候也是缺乏consistency 。 Consistency :所有客户端看到的同样的数据。Consistency - All clients have the same view of the data.
LinearizableConsistency 是一种很强的一致性级别。 Linearizability is a strong form of consistency.我的人生,第一次拥有了一种consistency 。 The first time in my life, I have a coherent sense of self . 一致性(Consistency ):所有节点同一时间看到是相同的数据;. Consistency(C )- every node sees the same data at the same time. Cachecoherency和memoryconsistency 有什么区别?? What's the difference between memory coherence and consistency ? 这种consistenctlevel他们称为incrementalconsistency 。 This level of consistency is called sequential consistency . 一致性(Consistency (所有节点在同一时间具有相同的数据). Consistency(Every node will be able to view the same data at the same time). 这个history再次违背了我们现有的concurrentregisterconsistency model。 This history violates our concurrent register consistency model. EventualConsistency -最终一致性最终一致性,也是是ACID的最终目的。 Eventual Consistency - The ultimate consistency is also the ultimate goal of ACID. LeslieLamport在1979年提出了SequentialConsistency ,LeslieLamport的定义如下:. So Leslie Lamport defined 1979 the concept of sequential consistency . 我们先前注意过,Dynamo被设计成一致性与可用性两者的权衡(tradeoffconsistency foravailability)。 As noted earlier, Dynamo is designed to tradeoff consistency for availability. ACID(Atomicity,Consistency ,Isolation,Durability)是一组数据库事务的属性。 ACID(Atomicity, Consistency , Isolation, Durability) is a set of database transaction management. Swift主要有三个组成部分:ProxyServer、StorageServer和Consistency Server。 Swift is composed of three major parts: the proxy, storage servers, and consistency servers. ACID(Atomicity,Consistency ,Isolation,Durability)是一组数据库事务的属性。 ACID(Atomicity, Consistency , Isolation, Durability) is a set of properties of database transactions. 架构概述Swift主要有三个组成部分:ProxyServer、StorageServer和Consistency Server。 Swift is composed of three major parts: the proxy, storage servers, and consistency servers. Swift的Consistency Servers的目的是查找并解决由数据损坏和硬件故障引起的错误。 Swift's consistency servers are responsible for finding and correcting errors caused by both data corruption and hardware failures. SwiftArchitectural主要有三个组成部分:ProxyServer、StorageServer和Consistency Server。 Swift is composed of three major parts: the proxy, storage servers, and consistency servers. Memoryconsistency errors:它指的是不同的线程对于相同的数据产生了inconsistentviews。 Memory consistency errors: Memory consistency errors occur when different threads have inconsistent views of the same data. 这种形式的通信是非常有效的,但可能导致两种错误:线程干扰(threadinterference)和内存一致性错误(memoryconsistency errors)。 This form of communication is extremely efficient, but makes two kinds of errors possible: thread interference and memory consistency errors. 这里,我们提出casualconsistency withconvergentconflicthandling,也就是casual+一致性。 In this paper, we consider causal consistency with convergent conflict handling, which we refer to as causal+ consistency. 这一章我们将进一步详细地讨论Oracle如何获得多版本读一致性(multi-versionreadconsistency ),并说明这对于开发人员来说意味着什么。 In this chapter, we're going to take a detailed look at how Oracle achieves multiversion read consistency and what that means to you, the developer. ACID(Atomicity,Consistency ,Isolation,Durability)是一组保证数据库事务可靠执行的特性。 ACID(Atomicity, Consistency , Isolation, Durability) is a set of properties that guarantees database transactions are reliably processed. 要详细了解AmazonSimpleDB的一致性,请参阅《AmazonSimpleDBDeveloperGuide》或《Consistency EnhancementsWhitepaper》。 To learn more about consistency with Amazon SimpleDB, please refer to the Amazon SimpleDB Developer Guide or Consistency Enhancements Whitepaper. CAP定理证明,Consistency ,Availability,PartitionTolerance在分布式运算中不可能在一个自恰系统中同时获得。 Brewer stated that it is not possible to guarantee the Consistency , Availability, and Partition Tolerance aspects simultaneously in a distributed system. 要了解更多有关AmazonSimpleDB事务语义和一致性的信息,请参阅AmazonSimpleDBDeveloperGuide或Consistency EnhancementsWhitepaper。 To learn more about consistency with Amazon SimpleDB, please refer to the Amazon SimpleDB Developer Guide or Consistency Enhancements Whitepaper.
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