CentOS6.5 Redis3.x集群安装配置

2022-03-03 00:06:48

===============================================================
准备三台机器做redis

192.168.99.5 
192.168.99.28
192.168.99.29

操作系统：

CentOS6.5 64bit

软件包:

redis-3.2.7.tar.gz
redis-3.3.3.gem
rubygems-1.3.7-5.el6.noarch.rpm

================================================================

1.编译安装redis

tar zxf redis-3.2.7.tar.gz

cd redis-3.2.7

[
Centos6.5上需要修改一下Makefile文件
$redis/src下

修改如下属性
FINAL_LIBS = -lm -lrt

]


make
sudo make install

2.安装rubygems

sudo yum install -y rubygems-1.3.7-5.el6.noarch.rpm

3.gem 安装集群用的redis

sudo gem install -l redis-3.3.3.gem

================================================================
在每一台几点上都要执行以下步骤

1.创建集群配置文件夹

sudo mkdir /usr/local/redis-cluster/{7000,7001,7002}

2.7000,7001,7002下，每个文件夹下创建redis.conf，

sudo touch /usr/local/redis-cluster/7000(7001,7002)/redis.conf

并添加如下配置:

#监听的端口，7000,7001,7002
port  7000  

#redis本机ip
bind 192.168.99.5
daemonize    yes

#按端口号修改pid的序号
pidfile  /var/run/redis_7000.pid

#启用集群模式
cluster-enabled  yes

#也是按照端口号修改序号
cluster-config-file  nodes_7000.conf
cluster-node-timeout  15000
appendonly  yes

3.指定配置文件启动3个redis实例

sudo /usr/local/bin/redis-server /usr/local/redis-cluster/7000/redis.conf
sudo /usr/local/bin/redis-server /usr/local/redis-cluster/7001/redis.conf
sudo /usr/local/bin/redis-server /usr/local/redis-cluster/7002/redis.conf

4.查看端口

sudo netstat -tnlp

会有7000,7001，7002 ，17000 ，17001 ，17002 这几个redis进程

创建集群

1.在任一台机器，解压后的redis的/src/目录下执行以下程序，选出三台机器上的三个节点作为redis集群的三个master节点

./redis-trib.rb create 192.168.99.5:7000 192.168.99.28:7000 192.168.99.29:7000

输出：

Using 3 masters:
192.168.99.29:7000
192.168.99.28:7000
192.168.99.5:7000
M: 29608e1a8b3d3e28315d1231b3a79dc3349bde21 192.168.99.5:7000
   slots:10923-16383 (5461 slots) master
M: eeb89dca7b91e683e77a443f03187eef4ab26cda 192.168.99.28:7000
   slots:5461-10922 (5462 slots) master
M: 0d589ff3efc479fc4acae086045ee1293767bdc6 192.168.99.29:7000
   slots:0-5460 (5461 slots) master
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 192.168.99.5:7000)
M: 29608e1a8b3d3e28315d1231b3a79dc3349bde21 192.168.99.5:7000
   slots:10923-16383 (5461 slots) master
   0 additional replica(s)
M: 0d589ff3efc479fc4acae086045ee1293767bdc6 192.168.99.29:7000
   slots:0-5460 (5461 slots) master
   0 additional replica(s)
M: eeb89dca7b91e683e77a443f03187eef4ab26cda 192.168.99.28:7000
   slots:5461-10922 (5462 slots) master
   0 additional replica(s)
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
You have new mail in /var/spool/mail/mobileoa

2.检查集群：选定集群中一个master节点的ip就可以查询整个集群

[mobileoa@db2test1 src]$ ./redis-trib.rb check 192.168.99.5:7000
>```

Performing Cluster Check (using node 192.168.99.5:7000)
M: 29608e1a8b3d3e28315d1231b3a79dc3349bde21 192.168.99.5:7000

slots:10923-16383 (5461 slots) master
0 additional replica(s)
M: 0d589ff3efc479fc4acae086045ee1293767bdc6 192.168.99.29:7000
slots:0-5460 (5461 slots) master
0 additional replica(s)
M: eeb89dca7b91e683e77a443f03187eef4ab26cda 192.168.99.28:7000
slots:5461-10922 (5462 slots) master
0 additional replica(s)
[OK] All nodes agree about slots configuration.

Check for open slots...
Check slots coverage...

[OK] All 16384 slots covered.



3.给集群每个主节点分散配置从节点，
                添加节点 类型    要给那个master添加从节点                   从节点ip                   要添加到的集群

./redis-trib.rb add-node --slave --master-id 29608e1a8b3d3e28315d1231b3a79dc3349bde21 192.168.99.28:7001 192.168.99.5:7000
./redis-trib.rb add-node --slave --master-id 29608e1a8b3d3e28315d1231b3a79dc3349bde21 192.168.99.29:7001 192.168.99.5:7000

./redis-trib.rb add-node --slave --master-id 0d589ff3efc479fc4acae086045ee1293767bdc6 192.168.99.5:7002 192.168.99.5:7000
./redis-trib.rb add-node --slave --master-id 0d589ff3efc479fc4acae086045ee1293767bdc6 192.168.99.28:7002 192.168.99.5:7000

./redis-trib.rb add-node --slave --master-id eeb89dca7b91e683e77a443f03187eef4ab26cda 192.168.99.5:7001 192.168.99.5:7000
./redis-trib.rb add-node --slave --master-id eeb89dca7b91e683e77a443f03187eef4ab26cda 192.168.99.29:7002 192.168.99.5:7000


4.查看集群状态

./redis-trib.rb check 192.168.99.5:7000

----

测试集群


redis-cli -h 192.168.99.28 -c -p 7002  ,加参数 -C 可连接到集群，因为上面 redis.conf 将 bind 改为了ip地址，所以 -h 参数不可以省略。

set hello world


查看key


在另一个节点连接redis ，并查询

redis-cli -h 192.168.99.5 -c -p 7001
get hello

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