本文使用的linux為Centos6.4版本，redis版本為redis-3.0.0，假設您已經在Linux上安裝了redis單機版，安裝目錄為/usr/local/redis下，redis-3.0.0.tar.gz解壓的目錄在/usr/local，本文只是演示怎麼搭建叢集
一、搭建叢集前需要的環境
搭建叢集需要使用到官方提供的ruby指令碼。
需要安裝ruby的環境。
安裝ruby：
yum install ruby
yum install rubygems
安裝ruby的包：（redis-3.0.0.gem需要另外下載上傳到linux上）：
gem install redis-3.0.0.gem
二、搭建的步驟
第一步：建立6個redis例項，埠號從7001~7006
首先要將單機版的安裝好的redis安裝路徑上bin目錄複製一份到/usr/local/redis-cluster/redis01下
在/usr/local目錄下新建redis-cluster資料夾:
mkdir redis-cluster
cd到/usr/local/redis，複製bin：
cp -r bin ../redis-cluster/redis01
複製完cd到redis01資料夾下，編輯redis.conf檔案:
vi redis.conf
修改原埠號6379為7001

去掉cluster-enable前面的註釋。

修改完畢儲存redis.conf
然後將redis01複製6份

分別修改redis02-redis06下面的redis-conf檔案，將埠號分別改為7002,7003,7004,7005,7006儲存即可
第二步：把建立叢集的ruby指令碼複製到redis-cluster目錄下
ruby指令碼的位置在redis的解壓路徑下的src下
cd到redis的解壓路徑的src下,複製redis-trib.rb：

第三步：啟動6個redis例項
可以寫一個sh指令碼，在redis-cluster檔案下新建startall.sh檔案

然後執行指令碼：

檢視程序，可知啟動成功
第四步：建立叢集
在redis-cluster下執行命令：
./redis-trib.rb create –replicas 1 192.168.11.133:7001 192.168.11.133:7002 192.168.11.133:7003 192.168.11.133:7004 192.168.11.133:7005 192.168.11.133:7006
其中192.168.11.133為自己linux的host
執行顯示如下：

>>> Creating cluster
Connecting to node 192.168.11
 
.133:7001: OK
Connecting to node 192.168.11.133:7002: OK
Connecting to node 192.168.11.133:7003: OK
Connecting to node 192.168.11.133:7004: OK
Connecting to node 192.168.11.133:7005: OK
Connecting to node 192.168.11.133:7006: OK
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.11.133:7001
192.168.11.133:7002
192.168.11.133:7003
Adding replica 192.168.11.133:7004 to 192.168.11.133:7001
Adding replica 192.168.11.133:7005 to 192.168.11.133:7002
Adding replica 192.168.11.133:7006 to 192.168.11.133:7003
M: 5a8523db7e12ca600dc82901ced06741b3010076 192.168.11.133:7001
   slots:0-5460 (5461 slots) master
M: bf6f0929044db485dea9b565bb51e0c917d20a53 192.168.11.133:7002
   slots:5461-10922 (5462 slots) master
M: c5e334dc4a53f655cb98fa3c3bdef8a808a693ca 192.168.11.133:7003
   slots:10923-16383 (5461 slots) master
S: 2a61b87b49e5b1c84092918fa2467dd70fec115f 192.168.11.133:7004
   replicates 5a8523db7e12ca600dc82901ced06741b3010076
S: 14848b8c813766387cfd77229bd2d1ffd6ac8d65 192.168.11.133:7005
   replicates bf6f0929044db485dea9b565bb51e0c917d20a53
S: 3192cbe437fe67bbde9062f59d5a77dabcd0d632 192.168.11.133:7006
   replicates c5e334dc4a53f655cb98fa3c3bdef8a808a693ca
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join.....
>>> Performing Cluster Check (using node 192.168.11.133:7001)
M: 5a8523db7e12ca600dc82901ced06741b3010076 192.168.11.133:7001
   slots:0-5460 (5461 slots) master
M: bf6f0929044db485dea9b565bb51e0c917d20a53 192.168.11.133:7002
   slots:5461-10922 (5462 slots) master
M: c5e334dc4a53f655cb98fa3c3bdef8a808a693ca 192.168.11.133:7003
   slots:10923-16383 (5461 slots) master
M: 2a61b87b49e5b1c84092918fa2467dd70fec115f 192.168.11.133:7004
   slots: (0 slots) master
   replicates 5a8523db7e12ca600dc82901ced06741b3010076
M: 14848b8c813766387cfd77229bd2d1ffd6ac8d65 192.168.11.133:7005
   slots: (0 slots) master
   replicates bf6f0929044db485dea9b565bb51e0c917d20a53
M: 3192cbe437fe67bbde9062f59d5a77dabcd0d632 192.168.11.133:7006
   slots: (0 slots) master
   replicates c5e334dc4a53f655cb98fa3c3bdef8a808a693ca
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

到此redis偽叢集搭建完畢
三、測試叢集

[root@localhost redis-cluster]# redis01/redis-cli -h 192.168.11.133 -p 7002 -c

[[email protected] redis-cluster]# redis01/redis-cli -h 192.168.11.133 -p 7002 -c
192.168.11.133:7002> set a 100
-> Redirected to slot [15495] located at 192.168.11.133:7003
OK
192.168.11.133:7003> 

四、關閉redis
同樣類似啟動寫好指令碼