...每个副本上的数据库都是可用的,在主要副本(primary replica)上的数据库用户可以进行读\写操作,在帮助副本(secondary replicas)上能够进行读操作,从而进步了数据库的可用性。
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您可以将变量的这些“线程局部”副本看作是与缓存类似,在每次线程需要访问变量的值时帮助它避免检查主存储器。
You could consider these "thread-local" copies of variables to be similar to a cache, helping the thread avoid checking main memory each time it needs to access the variable's value.
多个项目资产副本的存在同样帮助最小化停工、返工以及其它服务器的损耗带来的影响或灾难。
The existence of multiple replicas of project assets also helps minimize the downtime, rework, and other impacts of server outages or even disasters.
其中每个人都可以有自己的本地“帮助”副本,您可以很好地使用这些副本,一直到有一天出现额外的插件。
Each of you can have your own local copy of help, which works fine until the day the extra plug-ins come to town.
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