于是有了BASE理论。 BASE 理论 eBay的架构师Dan Pritchett源于对大规模分布式系统的实践总结,在ACM上发表文章提出BASE理论,BASE理论是对CAP理论的延伸,核心思想是即使无法做到强一致性(StrongConsistency,CAP的一致性就是强一致性),但应用可以采用适合的方式达到最终一致性(Eventual Consitency)。 (Basically Available)基...
有趣的是,ACID的意思是酸,而BASE却是碱的意思,因此这是一个对立的东西。其实,从本质上来讲,酸(ACID)强调的一致性(CAP中的C),而碱(BASE)强调是可用性(CAP中的A)。 http://www.sigma.me/2011/06/17/database-acid-and-base.html
Acidic oxides:Non-metal oxides e.g.: SO2, CO2 (only react with base) Basic oxides:Metal oxides e.g.: Na2O, CaO (only react with acid) Amphoteric oxides:React with both acids and bases: e.g.: Al2O3(Aluminum oxide) ; ZnO(Zinc oxide) Neutral oxides:CO, N2O [1] Here, we could ...
放弃一致性即为BASE模式,当节点放弃可用性即为ACID模式。 ACID 关系数据库, 最大的特点就是事务处理, 即满足ACID; ACID可以理解为ACID最重要的含义,就是Atomicity和Isolation ,即强制一致性,要么全做要么不做,所有用户看到的数据一致。强调数据的可靠性, 一致性和可用性。 ACID 为 Atomicity, Consistency, Isolation...
acid对比base 分析词典对比组词对比 (1).中国译典acidbase a. ①酸的,酸性的; n. ①[U][C]【化】酸:[定语]; 扩展解释:【电脑术语】 酸;酸的;= Atomic,Consistent,Isolated and Durable,【OLTP】(功能)强大,一致,孤立并持久; = Automatic Cross-referencing and Indexing Document generator, 自动交叉-引用...
Acid和Bases分别在生物中都是什么意思？ 词典释义 adj. 酸的;酸性的;酸味的;尖刻的 n. <化>酸;酸味物质 词典释义 n. 基地;基础;根据;基数（如十进制的10 和二进制的2） vt. 基于;把…建立在;把…放在或设在（基地）;把…置于底座（或基座）上 adj. 卑鄙的;低级的;贱...
(3)), which couples the results of the acid and base reactions, primarily leaving behind only the more abundant species. Let xi denote the type of droplet i (e.g., acid or base). If we consider a mixture of an odd number of n droplets with equal volume and concentrations, with m ...
Neutralization relies on dissociation of an acid and a base. Dissociation is where the acid or base breaks into its component ions. The ions participating in a neutralization reaction are the H+from the acid and the OH-from the base. The general form of the reaction is: ...
Excessivefoodintakeintheprotein,the acid-basebalancetheimbalance,thebodywillincreasecalciumexcretion. 在蛋白质类食品摄入过量时,酸碱平衡失衡,人体的钙排泄量就会增大。 www.qiyeku.com 7. Storage:Protect infromtouchingwithacid,baseorothercorrosivesubstances.Storedincool,dryandventilatedplaces. ...
Panic disorder (PD), a complex anxiety disorder characterized by recurrent panic attacks, represents a poorly understood psychiatric condition which is associated with significant morbidity and an increased risk of suicide attempts and completed suicide.