安装Redis

Redis安装文档，按照以下步骤即可安装成功。最近要用Redis，翻出了很久以前整理的安装文档，顺便贴到这。

1.下载安装包

redis下载地址：http://download.redis.io/releases/redis-3.0.5.tar.gz
tcl下载地址：http://mirror.centos.org/centos/6/os/x86_64/Packages/tcl-8.5.7-6.el6.x86_64.rpm

2.安装redis
[root@mr205 local]# rpm -ivh tcl-8.5.7-6.el6.x86_64.rpm
[root@mr205 local]# tar -zxvf redis-3.0.5.tar.gz

[root@mr205 local]# cd redis-3.0.5
[root@mr205 redis-3.0.5]# make
…
Hint: To run 'make test' is a good idea ;)
make[1]: Leaving directory `/usr/local/src/redis-3.0.5/src'
[root@mr205 redis-3.0.5]# make test
...
\o/ All tests passed without errors!
Cleanup: may take some time... OK
make[1]: Leaving directory `/usr/local/redis-3.0.5/src'
[root@mr205 redis-3.0.5]# make install
[root@mr205 redis-3.0.5]# cd /usr/local/bin/
[root@mr205 bin]# ll
-rwxr-xr-x 1 root root 4581067 10月 28 15:42 redis-benchmark
-rwxr-xr-x 1 root root   22177 10月 28 15:42 redis-check-aof
-rwxr-xr-x 1 root root   45395 10月 28 15:42 redis-check-dump
-rwxr-xr-x 1 root root 4685226 10月 28 15:42 redis-cli
lrwxrwxrwx 1 root root      12 10月 28 15:42 redis-sentinel -> redis-server
-rwxr-xr-x 1 root root 6458557 10月 28 15:42 redis-server

3.编辑redis配置文件
[root@mr205 redis-3.0.5]# cp redis.conf /etc/
[root@mr205 redis-3.0.5]# vim /etc/red
添加：redhat-release  redis.conf  
[root@mr205 redis-3.0.5]# vim /etc/redis.conf
把里面的
daemonize no  修改成 daemonize yes
 
4.启动redis服务
[root@mr205 redis-3.0.5]# redis-server /etc/redis.conf

5.测试redis服务：
[root@mr205 redis-3.0.5]# redis-cli
127.0.0.1:6379> set kin kin
OK
127.0.0.1:6379> get kin
"kin"

6.关闭redis服务
[root@mr205 redis-3.0.5]# redis-cli shutdown

7.将redis设为开机启动
[root@mr205 ~]# vim  /etc/rc.local 
加入 /usr/local/bin/redis-server /etc/redis.conf

8.在其他点安装遇到问题，原来是改点之前已经安装了redis，并且运行了redis
[root@mr203 bin]# redis-server /etc/redis.conf
15826:M 28 Oct 16:28:16.630 * Increased maximum number of open files to 10032 (it was originally set to 1024).
15826:M 28 Oct 16:28:16.631 # Creating Server TCP listening socket *:6379: bind: Address already in use
[root@mr203 bin]# ps -ef | grep redis
root     12705     1  0 16:13 ?        00:00:00 redis-server *:6379         
root     16035 11955  0 16:31 pts/0    00:00:00 grep redis

安装twemproxy

[root@mr205 local]# tar -zxvf nutcracker-0.4.0.tar.gz 
[root@mr205 local]# cd nutcracker-0.4.0
[root@mr205 nutcracker-0.4.0]# ./configure
[root@mr205 nutcracker-0.4.0]# make && make install

编辑配置文件
[root@mr205 nutcracker-0.4.0]# cd /usr/local/nutcracker-0.4.0/conf
[root@mr205 conf]# cp nutcracker.yml /etc/
[root@mr205 conf]# vim /etc/nutcracker.yml
alpha:
  listen: 127.0.0.1:22121
  hash: fnv1a_64
  distribution: ketama
  auto_eject_hosts: true
  redis: true
  server_retry_timeout: 2000
  server_failure_limit: 1
  servers: --两台redis服务器的地址和端口
   - 172.16.8.204:6379:1
   - 172.16.8.205:6379:1

测试配置文件
[root@mr205 nutcracker-0.4.0]# nutcracker -t /etc/nutcracker.yml 
nutcracker: configuration file 'conf/nutcracker.yml' syntax is ok

启动twemproxy
[root@mr205 local]# nutcracker  --help
This is nutcracker-0.4.0

Usage: nutcracker [-?hVdDt] [-v verbosity level] [-o output file]
                  [-c conf file] [-s stats port] [-a stats addr]
                  [-i stats interval] [-p pid file] [-m mbuf size]

Options:
  -h, --help             : this help
  -V, --version          : show version and exit
  -t, --test-conf        : test configuration for syntax errors and exit
  -d, --daemonize        : run as a daemon
  -D, --describe-stats   : print stats description and exit
  -v, --verbosity=N      : set logging level (default: 5, min: 0, max: 11)
  -o, --output=S         : set logging file (default: stderr)
  -c, --conf-file=S      : set configuration file (default: conf/nutcracker.yml)
  -s, --stats-port=N     : set stats monitoring port (default: 22222)
  -a, --stats-addr=S     : set stats monitoring ip (default: 0.0.0.0)
  -i, --stats-interval=N : set stats aggregation interval in msec (default: 30000 msec)
  -p, --pid-file=S       : set pid file (default: off)
  -m, --mbuf-size=N      : set size of mbuf chunk in bytes (default: 16384 bytes)
[root@mr205 nutcracker-0.4.0]# nutcracker -d -c /etc/nutcracker.yml
You have mail in /var/spool/mail/root
[root@mr205 nutcracker-0.4.0]# ps -ef|grep nutcracker
root      2717     1  0 16:25 ?        00:00:00 nutcracker -d -c /etc/nutcracker.yml
root      2721 19151  0 16:25 pts/0    00:00:00 grep nutcracker

测试twemproxy：
[root@mr205 local]# redis-cli -p 22121
127.0.0.1:22121> get kin
(nil)
127.0.0.1:22121> set kin king
OK
127.0.0.1:22121> get kin
"king"