Redis cluster
1. Preparation
| CPU name | operating system | IP address | Main software |
|---|---|---|---|
| Master1 | Centos7 | 192.168.1.2 | redis-3.2.9.tar.gz |
| Master2 | Centos7 | 192.168.1.3 | redis-3.2.9.tar.gz |
| Master3 | Centos7 | 192.168.1.4 | redis-3.2.9.tar.gz |
| slave1 | Centos7 | 192.168.1.5 | redis-3.2.9.tar.gz |
| slave2 | Centos7 | 192.168.1.6 | redis-3.2.9.tar.gz |
| slave3 | Centos7 | 192.168.1.7 | redis-3.2.9.tar.gz |
2. Install Redis
The operation steps of the 6 machines are the same:
the source code package to be installed:
https://pan.baidu.com/s/1_1gpGjh6Gt3P-mIcuoBofA
Extraction code: ra36
[root@Master-1 ~]# tar zxf redis-3.2.9.tar.gz -C /usr/src/
[root@Master-1 ~]# cd /usr/src/redis-3.2.9/
[root@Master-1 redis-3.2.9]# make && make PREFIX=/usr/local/redis install
[root@Master-1 redis-3.2.9]# ln -s /usr/local/redis/bin/* /usr/local/bin/
[root@Master-1 redis-3.2.9]# cd utils/
[root@Master-1 utils]# ./install_server.sh
依次回车即可
3. Edit the main configuration file
[root@Master-1 utils]# vim /etc/redis/6379.conf
62 bind 127.0.0.1 #修改成各自的IP地址
以下是6台主机相同配置：
81 protected-mode no #将yes修改为no，表示关闭保护模式
85 port 6379 #默认端口号即可
594 appendonly yes #将no改为yes，表示以独立进程启动
将以下#号去掉：
722 cluster-enabled yes #开启群集模式
730 cluster-config-file nodes-6379.conf #群集名称文件设置
736 cluster-node-timeout 15000 #群集超时时间设置
[root@Master-1 utils]# /etc/init.d/redis_6379 restart
If you can’t find the data, you can use / to search for keywords
4. Perform cluster redis-trib.rb deployment on any node
1) Install the ruby tool
ruby source code package can be downloaded from the following link:
https://pan.baidu.com/s/1KsvU9Gf0jlTd3U1EyjC-GQ
extraction code: 4fp4
[root@Master-1 ~]# mount /dev/cdrom /media/cdrom
[root@Master-1 ~]# yum -y install ruby rubygems
[root@Master-1 ~]# gem install redis --version 3.2.0
[root@Master-1 ~]# cd /usr/src/redis-3.2.9/src/
使用脚本安装redis群集：
[root@Master-1 src]# ./redis-trib.rb create --replicas 1 192.168.1.2:6379 192.168.1.3:6379 192.168.1.4:6379 192.168.1.5:6379 192.168.1.6:6379 192.168.1.7:6379
5. Verification
1) View the cluster status
[root@Master-1 src]# ./redis-trib.rb check 192.168.1.2:6379
2) Log in to the redis cluster and set up the key value test
[root@Master-1 src]# redis-cli -h 192.168.1.2 -p 6379 -c
192.168.1.2:6379> set xingming zhangsan
OK
192.168.1.2:6379> get xingming
"zhangsan"
192.168.1.2:6379> quit
Enter the 192.168.1.3 host to check whether it is synchronized. In fact, any host can be synchronized.
[root@Master-2 ~]# redis-cli -h 192.168.1.3 -p 6379 -c
192.168.1.3:6379> keys *
(empty list or set)
192.168.1.3:6379> get xingming
-> Redirected to slot [1657] located at 192.168.1.2:6379
"zhangsan"
192.168.1.2:6379> keys *
1) "xingming"
