tutorial on installing and configuring the Redis database under the Cenos system _redis

One: Install Redis

wget http://redis.googlecode.com/files/redis-2.6.14.tar.gz
tar zxvf redis-2.6.14.tar.gz
CD redis-2.6.14 Make
Prefix=/usr/local/redis Install

Two: Configure Redis

Use the default profile and make a little change.

1. Customary practice, the configuration file in the source code installed folder, easy to manage it

mkdir/usr/local/redis/etc/
CP redis-2.6.14/redis.conf/usr/local/redis/etc/

2. Modify configuration file/usr/local/redis/etc/redis.conf
(1) Redis is not run as a daemon by default and can be modified using Yes to enable the daemon

Daemonize Yes

(2) Close the connection when the client is idle for a long time, or 0 if specified, to turn off the feature

Timeout 300

(3) Specify Redis log

Logfile/var/log/redis.log

(4) Specify local database storage directory

dir/data/redis/redis_db

3. Start Redis

/usr/local/redis/bin/redis-server/usr/local/redis/etc/redis.conf

Three: Test Redis

1 demonstrates a simple set Key,get key operation ...

Please install the PHP redis client first, the specific installation reference (Https://github.com/nicolasff/phpredis)

<?php
$redis = new Redis ();
try{
  $redis->connect (' 127.0.0.1 ', 6379);
}
catch (Exception $e) {
  die ("Cannot connect to Redis server:". $e->getmessage ());
}

$redis->set (' name ', ' Budong ');
echo $redis->get (' name ');
? >

Output Budong, the installation is successful.
2 Redis can play too much, Operation dimension must view Redis run information, as follows:

[Root@cache ~]#/usr/local/redis/bin/redis-cli 
redis 127.0.0.1:6379> INFO

Some of the results are as follows:

redis_version:2.4.7
redis_git_sha1:00000000
redis_git_dirty:0
arch_bits:64
multiplexing_api: Epoll
gcc_version:4.1.2
process_id:26615
uptime_in_seconds:2717407
uptime_in_days:31
lru_ clock:117839
used_cpu_sys:102659.58
used_cpu_user:101565.17
used_cpu_sys_children:125215.15
used_cpu_user_children:807371.44