redis 5.0.3
官方：https://redis.io/
一 简介
Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams. Redis has built-in replication, Lua scripting, LRU eviction, transactions and different levels of on-disk persistence, and provides high availability via Redis Sentinel and automatic partitioning with Redis Cluster.
redis是开源的内存数据结构仓库，可以用作数据库、缓存或消息队列，支持丰富的数据类型：strings, hashes, lists, sets, sorted sets, bitmaps, hyperloglogs, geospatial indexes，支持多副本、lua脚本、lru、事务、持久化，同时支持高可用和分区（Sentinel）；
二 安装
$ wget http://download.redis.io/releases/redis-5.0.3.tar.gz
$ tar xzf redis-5.0.3.tar.gz
$ cd redis-5.0.3
$ make
三 使用
启动server
$ src/redis-server
连接本地server
$ src/redis-cli
redis> set foo bar
OK
redis> get foo
"bar"
连接远程server
$ src/redis-cli
Could not connect to Redis at 127.0.0.1:6379: Connection refused
not connected> connect 192.168.0.1 6379
192.168.0.1:6379> ping
PONG
192.168.0.1:6379> set hello world
OK
192.168.0.1:6379> get hello
"world"
常用命令参考：https://redis.io/commands