redis集群安裝

本文 redis版本3.2.9
介紹

一、安裝
1.1 創建目錄

            mkdir -p /redis/cluster
            mkdir 7000 7001 7002 7003 7004 7005

1.2 下載安裝包
wget http://download.redis.io/releases/redis-3.2.9.tar.gz
1.3 解壓安裝

            tar zxvf redis-3.2.9.tar.gz
            cd redis-3.2.9
            make && make PREFIX=/usr/local/redis install

注：PREFIX可以根據環境需求更改存放位置

1.4 yum源

            vi /etc/yum.repos.d/yum.repo
            [base]
            name=Red Hat Enterprise Linux 
            baseurl=file:///media/Server  
            enabled=1
            gpgcheck=0
            gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
資源包
            yum install gcc
            yum install tcl

1.5 復制和修改配置文件

             cp /redis/redis-3.2.9/redis.conf /redis/cluster/7000
             cp /redis/redis-3.2.9/redis.conf /redis/cluster/7001
             cp /redis/redis-3.2.9/redis.conf /redis/cluster/7002
             cp /redis/redis-3.2.9/redis.conf /redis/cluster/7003
             cp /redis/redis-3.2.9/redis.conf /redis/cluster/7004
             cp /redis/redis-3.2.9/redis.conf /redis/cluster/7005

1.6 修改配置文件

            # 端口號
            port 7000
            #后臺啟動
            daemonize yes
            #開啟集群
            cluster-enabled yes
            #集群節點配置文件
            cluster-config-file nodes-7000.conf
            #集群連接超時時間
            cluster-node-timeout 5000
            #進程pid的文件位置
            pidfile /var/run/redis-7000.pid
            #開啟aof
            appendonly yes
            #aof文件路徑
            appendfilename "appendonly-7005.aof"
            #rdb文件路徑
            dbfilename dump-7000.rdb

1.7 創建啟動腳本

         /redis/redis-3.2.9/bin/redis-server /redis/cluster/7000/redis.conf
         /redis/redis-3.2.9/bin/redis-server /redis/cluster/7001/redis.conf
         /redis/redis-3.2.9/bin/redis-server /redis/cluster/7002/redis.conf
         /redis/redis-3.2.9/bin/redis-server /redis/cluster/7003/redis.conf
         /redis/redis-3.2.9/bin/redis-server /redis/cluster/7004/redis.conf
         /redis/redis-3.2.9/bin/redis-server /redis/cluster/7005/redis.conf

二、集群
2.1 資源包

        [root@redis2 ~]#yum install ruby rubygems -y
        [root@redis2 ~]# tar zxvf rubygems-2.4.6.tgz
        [root@redis2 ~]# chown -R root:root rubygems-2.4.6
        [root@redis2 ~]# cd rubygems-2.4.6
        ruby setup.rb
        gem sources --remove https://rubygems.org/
        gem install redis-3.3.3.gem

2.2 創建集群
redis-trib 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
命令的意義如下：
redis-trib.rb 程序的命令是 create ，集群。
選項 --replicas 1 表示我們希望為集群中的每個主節點創建一個從節點。
之后跟著的其他參數則是實例的地址列表， 我們希望程序使用這些地址所指示的實例來創建新集群。
簡單來說，以上的命令的意思就是讓redis-trib程序幫我們創建三個主節點和三個從節點的集群
接著， redis-trib 會打印出一份預想中的配置給你看， 如果你覺得沒問題的話， 就可以輸入 yes ， redis-trib 就會將這份配置應用到集群當中：

                >>> Creating cluster
                >>> Performing hash slots allocation on 6 nodes...
                Using 3 masters:
                127.0.0.1:7000
                127.0.0.1:7001
                127.0.0.1:7002
                Adding replica 127.0.0.1:7003 to 127.0.0.1:7000
                Adding replica 127.0.0.1:7004 to 127.0.0.1:7001
                Adding replica 127.0.0.1:7005 to 127.0.0.1:7002
                M: bdcddddd3d78a866b44b68c7ae0e5ccf875c446a 127.0.0.1:7000
                     slots:0-5460 (5461 slots) master
                M: b85519795fa42aa33d4e88d25104cbae895933a6 127.0.0.1:7001
                     slots:5461-10922 (5462 slots) master
                M: b681e1a151890cbf957d1ff08352ee48f6ae39e6 127.0.0.1:7002
                     slots:10923-16383 (5461 slots) master
                S: d403713ab9db48aeac5b5393b69e1201026ef479 127.0.0.1:7003
                     replicates bdcddddd3d78a866b44b68c7ae0e5ccf875c446a
                S: b7ec92919e5bcffa76c8eee338f8ca5155293c64 127.0.0.1:7004
                     replicates b85519795fa42aa33d4e88d25104cbae895933a6
                S: 8a0d2a3f271b349744a971e1b0a545405de2742e 127.0.0.1:7005
                     replicates b681e1a151890cbf957d1ff08352ee48f6ae39e6
                Can I set the above configuration? (type 'yes' to accept):

2.3 集群使用

    [root@centos1 redis]# ./redis-cli -c -p 7000
    127.0.0.1:7000> set name leo
    -> Redirected to slot [5798] located at 127.0.0.1:7001
    OK
    127.0.0.1:7001> get name
    "leo"