Linux - redis-cluster搭建

目錄

• Linux - redis-cluster搭建

Linux - redis-cluster搭建

1.準備6個數據庫節點，也就是6個redis實例，也就是6個配置文件

配置文件以下

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

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

配置文件，內容以下

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

分別準備6個redis節點，經過sed命令快速建立，僅僅是端口的區分

[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.分別啓動6個數據庫實例

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.開始分配redis數據庫的槽位， 經過ruby腳本，自動化分配槽位

4.配置ruby的解釋器環境

1.下載源碼

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

2.釋放編譯文件
#安裝ruby
tar -xvf ruby-2.3.1.tar.gz
./configure --prefix=/opt/ruby/
make && make install

3.配置ruby的環境變量
/opt/ruby/bin
source /etc/profile 

vim /etc/profile


4.下載ruby操做redis的模塊

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

5.經過ruby的包管理工具安裝它

gem install -l redis-3.3.0.gem

6.經過ruby的腳本，自動化分配redis虛擬槽位，開啓集羣功能
/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.驗證集羣是否開啓

    redis-cli -p 7000 cluster info
    
    以下:
    
        [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.登錄redis集羣，寫入數據，查看數據流向

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"

數據會在集羣中，在節點間重定向

9.redis集羣到此完畢