基础环境：

vmware虚拟机2台，每台开3个redis进程。模拟6个节点3主3备。

yum install -y net-tools wget gcc gcc-c++

cd /tmp

wget[http://120.221.34.83:6510/download.redis.io/releases/redis-5.0.4.tar.gz](http://120.221.34.83:6510/download.redis.io/releases/redis-5.0.4.tar.gz)

tar zxvf redis-5.0.4.tar.gz

cd redis.-5.0.4

make

make install

cd utils

./install_server.sh

image

开始配置

cd /etc/redis

cp 6379.conf 7000.conf

vi 7000.conf

#bind 127.0.0.1  # 不限定只监听本机

port 7000            #设置端口

protected-mode no  #关闭保护模式，运行远程连接

daemonize yes    #运行后台守护进程方式运行

pidfile /var/run/redis_7000.pid #一定要根据进程不同分开

logfile /var/log/redis_7000.log #最好也根据进程不同分开

dir /var/lib/redis/7000

cluster-enabled yes

cluster-config-file nodes_7000.conf 

cluster-node-timeout 5000

appendonly yes


#依次建立7001.conf 和7002.conf

cd /var/lib/redis

mkdir 7000 7001 7002

#需要关闭防火墙 
systemctl stop firewalld

systemctl disable firewalld

然后复制一台相同的虚拟机，IP设置为不同

两台机器开机，分别开启三个redis-server，查看进程开启情况：

下面是一台的：

[root@192 ~]# redis-server /etc/redis/7000.conf

[root@192 ~]# redis-server /etc/redis/7001.conf 

[root@192 ~]# redis-server /etc/redis/7002.conf 

[root@192 ~]# ps aux | grep redis

root      6839  0.2  0.7 153880  7656 ?        Ssl  10:51  0:00 /usr/local/bin/redis-server 127.0.0.1:6379

root      7066  0.2  0.8 156440  8208 ?        Ssl  10:53  0:00 redis-server *:7000 [cluster]

root      7071  0.2  1.2 162584 12292 ?        Ssl  10:53  0:00 redis-server *:7001 [cluster]

root      7076  0.2  0.8 156440  8212 ?        Ssl  10:53  0:00 redis-server *:7002 [cluster]

root      7082  0.0  0.0 112708  980 pts/0    R+  10:54  0:00 grep --color=auto redis

[root@192 ~]#

在一台上运行以下命令：（redis5.0 以上职称redis -cli直接建集群）

redis-cli --cluster create 192.168.3.131:7000 192.168.3.131:7001 \

192.168.3.131:7002 192.168.3.132:7000 192.168.3.132:7001 192.168.3.132:7002 \

--cluster-replicas 1

会出现以下信息，代表建立集群成功，且会显示集群中各node的角色：

[root@192 ~]# redis-cli --cluster create 192.168.3.131:7000 192.168.3.131:7001 \

> 192.168.3.131:7002 192.168.3.132:7000 192.168.3.132:7001 192.168.3.132:7002 \

> --cluster-replicas 1

>>> Performing hash slots allocation on 6 nodes...

Master[0] -> Slots 0 - 5460

Master[1] -> Slots 5461 - 10922

Master[2] -> Slots 10923 - 16383

Adding replica 192.168.3.132:7002 to 192.168.3.131:7000

Adding replica 192.168.3.131:7002 to 192.168.3.132:7000

Adding replica 192.168.3.132:7001 to 192.168.3.131:7001

M: d398ace1b958cc40e1b120c0bc76ebdbc0788e57 192.168.3.131:7000

  slots:[0-5460] (5461 slots) master

M: aeb2caaa4d4be0e27079387f33681249f73d8ca7 192.168.3.131:7001

  slots:[10923-16383] (5461 slots) master

S: 0236063723676cd0110536b430cef2dbd13462c5 192.168.3.131:7002

  replicates 05bad1b8a58e3a321c6107e0418a61aff7d845d6

M: 05bad1b8a58e3a321c6107e0418a61aff7d845d6 192.168.3.132:7000

  slots:[5461-10922] (5462 slots) master

S: 98ded94af7b8af77e2e1fa886ce89f422df1e7dd 192.168.3.132:7001

  replicates aeb2caaa4d4be0e27079387f33681249f73d8ca7

S: 57ab71d60585efcbf802dbc7db965599a4930757 192.168.3.132:7002

  replicates d398ace1b958cc40e1b120c0bc76ebdbc0788e57

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 192.168.3.131:7000)

M: d398ace1b958cc40e1b120c0bc76ebdbc0788e57 192.168.3.131:7000

  slots:[0-5460] (5461 slots) master

  1 additional replica(s)

S: 98ded94af7b8af77e2e1fa886ce89f422df1e7dd 192.168.3.132:7001

  slots: (0 slots) slave

  replicates aeb2caaa4d4be0e27079387f33681249f73d8ca7

M: aeb2caaa4d4be0e27079387f33681249f73d8ca7 192.168.3.131:7001

  slots:[10923-16383] (5461 slots) master

  1 additional replica(s)

S: 57ab71d60585efcbf802dbc7db965599a4930757 192.168.3.132:7002

  slots: (0 slots) slave

  replicates d398ace1b958cc40e1b120c0bc76ebdbc0788e57

S: 0236063723676cd0110536b430cef2dbd13462c5 192.168.3.131:7002

  slots: (0 slots) slave

  replicates 05bad1b8a58e3a321c6107e0418a61aff7d845d6

M: 05bad1b8a58e3a321c6107e0418a61aff7d845d6 192.168.3.132:7000

  slots:[5461-10922] (5462 slots) master

  1 additional replica(s)

[OK] All nodes agree about slots configuration.

>>> Check for open slots...

>>> Check slots coverage...

[OK] All 16384 slots covered.

连接验证

连接集群模式，使用redis-cli 加 -c 选项，要不然会报错：(error) MOVED 5798

[root@192 ~]# redis-cli -h 192.168.3.131 -p 7000

#没有加-c选项，提示错误！

192.168.3.131:7000> set name gswu001

(error) MOVED 5798 192.168.3.132:7000

192.168.3.131:7000> quit

[root@192 ~]# redis-cli -c -h 192.168.3.131 -p 7000

192.168.3.131:7000> set name gswu001

#添加一条数据

-> Redirected to slot [5798] located at 192.168.3.132:7000

OK

192.168.3.132:7000> quit

#连接另一个node验证，出现了redirected！！

[root@192 ~]# redis-cli -c -h 192.168.3.131 -p 7001

192.168.3.131:7001> get name

-> Redirected to slot [5798] located at 192.168.3.132:7000

"gswu001"

192.168.3.132:7000>

#再连接另一台虚拟机上的测试一下：

[root@192 ~]# redis-cli -c -h 192.168.3.132 -p 7002

192.168.3.132:7002> get name

-> Redirected to slot [5798] located at 192.168.3.132:7000

"gswu001"

192.168.3.132:7000>