Linux - redis-cluster搭建

Linux - redis-cluster搭建

1.准备6个数据库节点，也就是6个redis实例，也就是6个配置文件

配置文件如下

redis-7000.conf  redis-7002.conf  redis-7004.conf

redis-7001.conf  redis-7003.conf  redis-7005.conf

配置文件，内容如下

port 7000

daemonize yes

dir "/opt/data"

logfile "7000.log"

dbfilename "dump-7000.rdb"

cluster-enabled yes   

cluster-config-file nodes-7000.conf

cluster-require-full-coverage no

分别准备6个redis节点，通过sed命令快速创建，仅仅是端口的区分

[root@master clusterredis]# sed "s/7000/7001/g" redis-7000.conf > redis-7001.conf 

[root@master clusterredis]# 

[root@master clusterredis]# sed "s/7000/7002/g" redis-7000.conf > redis-7002.conf 

[root@master clusterredis]# sed "s/7000/7003/g" redis-7000.conf > redis-7003.conf 

[root@master clusterredis]# 

[root@master clusterredis]# 

[root@master clusterredis]# 

[root@master clusterredis]# sed "s/7000/7004/g" redis-7000.conf > redis-7004.conf 

[root@master clusterredis]# sed "s/7000/7005/g" redis-7000.conf > redis-7005.conf

2.分别启动6个数据库实例

root@master clusterredis]# redis-server redis-7000.conf 

[root@master clusterredis]# redis-server redis-7001.conf 

[root@master clusterredis]# redis-server redis-7002.conf 

[root@master clusterredis]# redis-server redis-7003.conf 

[root@master clusterredis]# redis-server redis-7004.conf 

[root@master clusterredis]# redis-server redis-7005.conf

3.开始分配redis数据库的槽位，通过ruby脚本，自动化分配槽位

4.配置ruby的解释器环境

 1.下载源码

wget https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.1.tar.gz

2.释放编译文件
#安装ruby
tar -xvf ruby-2.3.1.tar.gz
./configure --prefix=/opt/ruby/
make && make install

3.配置ruby的环境变量
/opt/ruby/bin
source /etc/profile 

vim /etc/profile


4.下载ruby操作redis的模块

wget http://rubygems.org/downloads/redis-3.3.0.gem

5.通过ruby的包管理工具安装它

gem install -l redis-3.3.0.gem

6.通过ruby的脚本，自动化分配redis虚拟槽位，开启集群功能
/opt/redis-4.0.10/src/redis-trib.rb create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005

7.验证集群是否开启

    redis-cli -p 7000 cluster info
    
    如下:
    
        [root@yugo /opt/redis/src 18:42:14]#redis-cli -p 7000 cluster info
        cluster_state:ok
        cluster_slots_assigned:16384
        cluster_slots_ok:16384
        cluster_slots_pfail:0
        cluster_slots_fail:0
        cluster_known_nodes:6
        cluster_size:3
        cluster_current_epoch:6
        cluster_my_epoch:1
        cluster_stats_messages_ping_sent:10468
        cluster_stats_messages_pong_sent:10558
        cluster_stats_messages_sent:21026
        cluster_stats_messages_ping_received:10553
        cluster_stats_messages_pong_received:10468
        cluster_stats_messages_meet_received:5
        cluster_stats_messages_received:21026

8.登陆redis集群，写入数据，查看数据流向

127.0.0.1:7000> set name chao     
-> Redirected to slot [5798] located at 127.0.0.1:7001       
OK

127.0.0.1:7001> exit
[root@yugo /opt/redis/src 18:46:07]#redis-cli -c -p 7000
127.0.0.1:7000> ping
PONG
127.0.0.1:7000> keys *
(empty list or set)
127.0.0.1:7000> get name
-> Redirected to slot [5798] located at 127.0.0.1:7001
"chao"

数据会在集群中，在节点间重定向

9.redis集群到此完毕

Linux - redis-cluster搭建

Linux - redis-cluster搭建

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