Redis简介

Redis is an open source, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes,lists, sets and sorted sets.

Redis是一个开源的，高效的键值存储系统，通常被称为数据结构服务器，因为键值可以包括字符串，哈希，列表，集合，及有序集合。

You can run atomic operations on these types, like appending to a string; incrementing the value in a hash; pushing to a list; computing set intersection, union and difference; or getting the member with highest ranking in a sorted set.

你可以进行原子操作在这些类型上，

In order to achieve its outstanding performance, Redis works with an in-memory dataset. Depending on your use case, you can persist it either by dumping the dataset to disk every once in a while, or by appending each command to a log.

为了达到高效，Redis使用了内存数据集，根据你的需要，你也可以持久到硬盘上

Redis also supports trivial-to-setup master-slave replication, with very fast non-blocking first synchronization, auto-reconnection on net split and so forth.

Other features include a simple check-and-set mechanism, pub/sub and configuration settings to make Redis behave like a cache.

You can use Redis from most programming languages out there.

Redis is written in ANSI C and works in most POSIX systems like Linux, *BSD, OS X and Solaris without external dependencies. There is no official support for Windows builds, although you may have some options.