redis 3.2.3 集群部署

Posted 2020-09-23 DevinH的博客

部署环境：

 

1.下载redis安装包

#在各个节点上分别下载redis
cd /opt
wget http://download.redis.io/releases/redis-3.2.3.tar.gz
tar zxvf redis-3.2.3.tar.gz　

 

2.编译安装

#确认有没有安装make命令，没有的话需要执行以下操作，有的话就不用了
#安装：
yum -y install gcc automake autoconf libtool make
#安装g++:
yum install gcc gcc-c++

#安装redis
cd redis-3.2.3
make && make install

 

 

3.创建目录存放redis节点的配置文件

#根据此前的部署要求，此操作在172.168.1.80
mkdir -pv /opt/redis-3.2.3/cluster/700{0,1}  
   
#此操作在172.168.1.81
mkdir -pv /opt/redis-3.2.3/cluster/700{2,3} 

#此操作在172.168.1.82
mkdir -pv /opt/redis-3.2.3/cluster/700{2,3}   

 #复制redis.conf到各个节点目录

 cp redis-3.2.3/redis.conf /opt/redis/cluster/7000

 

                            

 4.然后编辑 redis.conf修改每个节点的配置,修改以下属性

bind　　172.168.1.80
daemonize    yes                          #redis后台运行
pidfile  /var/run/redis_7000.pid          #pidfile文件对应7000,7002,7003
port  7000                                #端口7000,7002,7003
cluster-enabled  yes                      #开启集群  把注释#去掉
cluster-config-file  nodes_7000.conf      #集群的配置  配置文件首次启动自动生成 7000,7001,7002
appendonly  yes                           #aof日志开启  有需要就开启，它会每次写操作都记录一条日志

 

5.启动节点

#分别在80/81/82上执行
redis-server redis_cluster/7000/redis.conf      #7000为对应节点下的目录

 

6.检查 redis 启动情况

[root@localhost ]# ps aux | grep redis
root     28987  0.0  0.1 133524  7568 ?        Ssl  16:41   0:00 redis-server 172.168.1.81:7002 [cluster]             
root     28992  0.0  0.1 133524  7568 ?        Ssl  16:41   0:00 redis-server 172.168.1.81:7003 [cluster]             
root     28998  0.0  0.0 103252   812 pts/1    S+   16:42   0:00 grep redis

#查看端口监听
ss -tnlp | grep redis

 

7.将redis节点加入集群

#执行以下命令将各节点加入集群
redis-trib.rb create --replicas 1 172.168.1.80:7000 172.168.1.80:7001 172.168.1.81:7002 172.168.1.81:7003 172.168.1.82:7004 172.168.1.82:7005
#其中

--replicas 1   ：自动为每一个master节点分配一个slave节点

#运行以上命令时，必须要先安装ruby环境，因为这个命令时ruby写的 

 

  #安装命令如下：

　yum -y install ruby ruby-devel rubygems rpm-build
　gem install redis

 

#重新运行命令如果出现以下内容则表示集群安装成功，记得中途还需输入yes

root># redis-trib.rb create --replicas 1 172.168.1.80:7000 172.168.1.80:7001 172.168.1.81:7002 172.168.1.81:7003 172.168.1.82:7004 172.168.1.82:7005
>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
172.168.1.80:7000
172.168.1.81:7002
172.168.1.82:7004
Adding replica 172.168.1.81:7003 to 172.168.1.80:7000
Adding replica 172.168.1.80:7001 to 172.168.1.81:7002
Adding replica 172.168.1.82:7005 to 172.168.1.82:7004
M: 24337aaa4932d1faea25e5104b0eb56fb7f45ac2 172.168.1.80:7000
slots:0-5460 (5461 slots) master
S: 14bcba9c9019eabb2895b233b50c7f100f04b2af 172.168.1.80:7001
replicates ffee2b7a207d67d8c05b66d0bf84acd7b2f44e92
M: ffee2b7a207d67d8c05b66d0bf84acd7b2f44e92 172.168.1.81:7002
slots:5461-10922 (5462 slots) master
S: 41827f85c14f13c08664fe924e4536da18a3c8c8 172.168.1.81:7003
replicates 24337aaa4932d1faea25e5104b0eb56fb7f45ac2
M: 2ce87c94d257a74b6adc7fd5b20cbdeb51b81b73 172.168.1.82:7004
slots:10923-16383 (5461 slots) master
S: c1db158638a4929a17fa25a7f4a6e1e8493f192a 172.168.1.82:7005
replicates 2ce87c94d257a74b6adc7fd5b20cbdeb51b81b73
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 172.168.1.80:7000)
M: 24337aaa4932d1faea25e5104b0eb56fb7f45ac2 172.168.1.80:7000
slots:0-5460 (5461 slots) master
M: 14bcba9c9019eabb2895b233b50c7f100f04b2af 172.168.1.80:7001
slots: (0 slots) master
replicates ffee2b7a207d67d8c05b66d0bf84acd7b2f44e92
M: ffee2b7a207d67d8c05b66d0bf84acd7b2f44e92 172.168.1.81:7002
slots:5461-10922 (5462 slots) master
M: 41827f85c14f13c08664fe924e4536da18a3c8c8 172.168.1.81:7003
slots: (0 slots) master
replicates 24337aaa4932d1faea25e5104b0eb56fb7f45ac2
M: 2ce87c94d257a74b6adc7fd5b20cbdeb51b81b73 172.168.1.82:7004
slots:10923-16383 (5461 slots) master
M: c1db158638a4929a17fa25a7f4a6e1e8493f192a 172.168.1.82:7005
slots: (0 slots) master
replicates 2ce87c94d257a74b6adc7fd5b20cbdeb51b81b73
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

 

 

8.集群验证

redis-cli -h 172.168.1.81 -c -p 7002

 

到此安装完成。