Redis4基于CentOS6集群搭建

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2020-04-08

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1、安装需要的依赖包

[root@localhost ~]# yum install gcc gcc-c++ kernel-

devel automake autoconf libtool make wget tcl vim ruby rubygems unzip git -y

2. 下载 redis 并安装

[root@localhost src]# cd /usr/local/

[root@localhost local]# wget http://download.redis.io/releases/redis-4.0.1.tar.gz

[root@localhost local]# tar xzf redis-4.0.1.tar.gz

[root@localhost local]# cd redis-4.0.1

[root@localhost redis-4.0.1]# make

3. 创建集群需要的目录

mkdir -p /usr/local/cluster

cd /usr/local/cluster

mkdir –p /usr/local/cluster/7000

mkdir –p /usr/local/cluster/7001

mkdir –p /usr/local/cluster/7002

mkdir –p /usr/local/cluster/7003

mkdir –p /usr/local/cluster/7004

mkdir –p /usr/local/cluster/7005

4. 修改配置文件 redis.conf

port 7000（7002,7003,7004,7005）

daemonize yes

cluster-enabled yes

cluster-config-file nodes_700X.conf

cluster-node-timeout 5000

appendonly yes

appendfilename "appendonly_700X.aof"

pidfile /var/run/redis_700X.pid

这个配置文件分别拷贝到 7000/7001/7002/7003/7004/7005 节点目录。

5.分别启动这 6 个 redis 实例

/usr/local/redis-4.0.1/src/redis-server ./7000/redis.conf

/usr/local/redis-4.0.1/src/redis-server ./7001/redis.conf

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/usr/local/redis-4.0.1/src/redis-server ./7002/redis.conf

/usr/local/redis-4.0.1/src/redis-server ./7003/redis.conf

/usr/local/redis-4.0.1/src/redis-server ./7004/redis.conf

/usr/local/redis-4.0.1/src/redis-server ./7005/redis.conf

并查看是否成功：ps -ef|grep redis

6. 执行 redis 的创建集群命令创建集群

[root@localhost cluster]# cd /usr/local/redis-4.0.1/src

[root@localhost 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

到这一步因为前面第 1 步装了依赖包，未提示 ruby 和 rubygems 的错误，但还是会报错，提

示不能加载 redis，是因为缺少 redis 和 ruby 的接口，使用 gem 安装

错误内容：

/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such

file to load -- redis (LoadError)

from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'

from ./redis-trib.rb:25

解决：gem install redis

还可能会提示 ruby 版本太低，需要安装高版本。

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

tar xzvf ruby-2.3.1.tar.gz

cd ruby-2.3.1

./configure –prefix=/usr/local/ruby

make && make install

7.重新执行创建集群的命令

。。。。。。。

[OK] All nodes agree about slots configuration.

>>> Check for open slots...

>>> Check slots coverage...

[OK] All 16384 slots covered.

8. 测试集群

[root@iZuf6h90t5awxwr3uqp6f0Z src]# ./redis-cli -c -p 7000

127.0.0.1:7000> set username xjs

-> Redirected to slot [14315] located at 127.0.0.1:7002

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