Redis 和Python Client的QuickStart
整理自 Redis QuickStart http://redis.io/topics/quickstart
Redis 源码使用C 编写， 不依赖其他软件包，只要系统有gcc 和libc 就可以使用如下 基于源码的编译安装，不推荐使用系统的包管理器（如yum) 安装redis, 理由是安装后的版本可能不是最新的稳定版
wget http://download.redis.io/redis-stable.tar.gz
tar xvzf redis-stable.tar.gz
cd redis-stable
make使用make test 验证是否build 正常 （这一步是可选的）
由于系统没有安装tcl, 刚开始执行make test 报错，
[root@cos65 redis-stable]# make test
cd src && make test
make[1]: Entering directory `/root/redis-stable/src'
You need tcl 8.5 or newer in order to run the Redis test
make[1]: *** [test] 错误 1
make[1]: Leaving directory `/root/redis-stable/src'
make: *** [test] 错误 2yum install tcl.x86_64 后，再次执行make test 通过，结果显示
\o/ All tests passed without errors!make 之后在 src 目录下编译生成如下binary
[root@cos65 src]# ls redis-* | grep -v "\.c\|\.o"
redis-benchmark
redis-check-aof
redis-check-dump
redis-cli
redis-sentinel
redis-server各binary作用如下
redis-server is the Redis Server itself.
redis-sentinel is the Redis Sentinel executable (monitoring and failover).
redis-cli is the command line interface utility to talk with Redis.
redis-benchmark is used to check Redis performances.
redis-check-aof and redis-check-dump are useful in the rare event of corrupted data files.可以手工copy 各binary到系统的相关目录（如/usr/local/bin) 也可以通过make install 完成
[root@cos65 redis-stable]# make install
cd src && make install
make[1]: Entering directory `/root/redis-stable/src'
Hint: To run 'make test' is a good idea ;)
INSTALL install
INSTALL install
INSTALL install
INSTALL install
INSTALL install
make[1]: Leaving directory `/root/redis-stable/src'
[root@cos65 redis-stable]# which redis-server
/usr/local/bin/redis-server输入redis-server 启动, 由于没有指定配置文件，所有配置使用内部的默认值，
[root@cos65 redis-stable]# redis-server
[5507] 24 Sep 20:54:02.109 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
[5507] 24 Sep 20:54:02.110 * Increased maximum number of open files to 10032 (it was originally set to 1024).
_._
_.-``__ ''-._
_.-`` `. `_. ''-._ Redis 2.8.13 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) Running in stand alone mode
|`-._`-...-` __...-.``-._|'` _.-'| Port: 6379
| `-._ `._ / _.-' | PID: 5507
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | http://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
[5507] 24 Sep 20:54:02.112 # Server started, Redis version 2.8.13
[5507] 24 Sep 20:54:02.112 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
[5507] 24 Sep 20:54:02.112 * The server is now ready to accept connections on port 6379如将redis 用于生产环境，指定配置文件，
以源码包中的redis.conf 为模板，copy 到/etc/ 目录，启动时指定配置文件 redis-server /etc/redis.conf
[root@cos65 redis-stable]# redis-server /etc/redis.conf
[5552] 24 Sep 21:52:58.986 * Increased maximum number of open files to 10032 (it was originally set to 1024).使用内置客户端 redis-cli 验证server 正常工作
[root@cos65 ~]# redis-cli ping
PONG
[root@cos65 ~]# redis-cli
127.0.0.1:6379> ping
PONG
127.0.0.1:6379> set mykey somevalue
OK
127.0.0.1:6379> get mykey
"somevalue"
127.0.0.1:6379> redis 支持的完整客户端列表 http://redis.io/clients
使用python 客户端redis-py 与server 交互，
首先安装redis-py, pip install redis
[root@cos65 ~]# pip install redis
Downloading/unpacking redis
Downloading redis-2.10.3.tar.gz (86kB): 86kB downloaded
Running setup.py egg_info for package redis
warning: no previously-included files found matching '__pycache__'
warning: no previously-included files matching '*.pyc' found under directory 'tests'
Installing collected packages: redis
Running setup.py install for redis
warning: no previously-included files found matching '__pycache__'
warning: no previously-included files matching '*.pyc' found under directory 'tests'
Successfully installed redis
Cleaning up...通过导入 redis 模块调用客户端执行查询与设值，
[root@cos65 ~]# python
Python 2.6.6 (r266:84292, Nov 22 2013, 12:16:22)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import redis
>>> r = redis.StrictRedis(host='localhost', port=6379, db=0)
>>> r.get('mykey')
'somevalue'
>>> r.set('foo', 'bar')
True
>>> r.get('foo')
'bar'