【Linux】【redis】Linux下多机器redis集群

1、软件下载

redis：http://download.redis.io/releases/redis-3.2.1.tar.gz

ruby包：https://rubygems.org/downloads/redis-3.2.1.gem

2、上传到Linux上，也可以直接在Linux上下载wget -c URL（-c表示断点续传）

 检查8000和8001端口是否被占用，没有没占用就可以使用ps -ef|grep 8000

 创建文件夹

mkdir /opt/software/redis
mkdir /opt/software/redis/redis8000
mkdir /opt/software/redis/redis8001

 解压redis

tar -zxvf /opt/tool/redis-3.2.1.tar.gz

查看是否安装gcc

gcc -v

如果没有安装gcc

sudo apt install gcc

编译redis

cd /opt/tool/redis-3.2.1
make

如果提示要安装make就安装

sudo apt install make

创建文件夹

mkdir /opt/software/redis/bin

复制文件到刚创建的文件夹

cp /opt/tool/redis-3.2.1/src/redis-cli /opt/software/redis/bin/
cp /opt/tool/redis-3.2.1/src/redis-server /opt/software/redis/bin/
cp /opt/tool/redis-3.2.1/src/redis-sentinel /opt/software/redis/bin/
cp /opt/tool/redis-3.2.1/src/redis-benchmark /opt/software/redis/bin/

创建文件夹

mkdir /opt/software/redis/etc

复制配置文件

cp /opt/tool/redis-3.2.1/redis.conf /opt/software/redis/etc/

创建文件夹和文件

mkdir /opt/software/redis/logs
touch /opt/software/redis/logs/redis.out

复制文件夹到8000和8001文件夹下

cp -r /opt/software/redis/bin/ /opt/software/redis/redis8000
cp -r /opt/software/redis/bin/ /opt/software/redis/redis8001
cp -r /opt/software/redis/logs/ /opt/software/redis/redis8000
cp -r /opt/software/redis/logs/ /opt/software/redis/redis8001
cp -r /opt/software/redis/etc/ /opt/software/redis/redis8000
cp -r /opt/software/redis/etc/ /opt/software/redis/redis8001

编辑配置文件

vi /opt/software/redis/redis8000/etc/redis.conf

 

 

vi /opt/software/redis/redis8001/etc/redis.conf

 启动redis

nohup /opt/software/redis/redis8000/bin/redis-server /opt/software/redis/redis8000/etc/redis.conf >>/opt/software/redis/redis8000/logs/redis.out 2>&1 &
nohup /opt/software/redis/redis8001/bin/redis-server /opt/software/redis/redis8001/etc/redis.conf >>/opt/software/redis/redis8001/logs/redis.out 2>&1 &

查看redis启动情况

ps -ef|grep redis

 其他两台机器一样

3、安装ruby工具

sudo apt-get install ruby

运行gem

sudo gem install /opt/tool/redis-3.2.1.gem

复制redis的src下文件redis-trib.rb

cp /opt/tool/redis-3.2.1/src/redis-trib.rb /opt/software/redis/

启动集群（只要一台机器启动就可以了）

/opt/software/redis/redis-trib.rb create --replicas 1 192.168.3.25:8000 192.168.3.25:8001 192.168.3.26:8000 192.168.3.26:8001 192.168.3.27:8000 192.168.3.27:8001

如果有问题：创建redis集群报错：ERR Slot 0 is already busy (Redis::CommandError)

4、测试

连接

/usr/local/redis/bin/redis-cli -p 8000 -h 192.168.3.25 -c

查看节点连接状态

cluster nodes

 查看集群信息

cluster info

 设值

 获取值

扩展资料（手动搭建集群）：https://xlui.me/t/redis-cluster/