1.下载

wget https://download.redis.io/releases/redis-6.2.1.tar.gz

2.CentOS7 修改yum源为阿里源
下载阿里yum源配置文件

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

更新yum缓存：yum clean all

3.解压到 /usr/local/

[root@do8888 local]# tar -zxvf redis-6.2.1.tar.gz -C /usr/local/

4.编译需要安装的包

yum -y install gcc gcc-c++ cmake

5.编译redis需要安装的包

yum -y install tcl-devel

6.进入 /usr/locat/redis-6.2.1 安装编译包

[root@do8888 redis-6.2.1]# pwd
/tmp/redis-6.2.1

安装

make PREFIX=/usr/local/redis install

7.配置文件

[root@do8888 redis-6.2.1]# egrep -v "#|^$" /usr/local/redis-6.2.1/redis.conf 
bind 127.0.0.1 -::1
protected-mode yes
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize no
pidfile /var/run/redis_6379.pid
loglevel notice
logfile ""

8.从库配
bind 127.0.0.1
port 6380
slaveof 127.0.0.1 6379　

127.0.0.1:6379> SLOWLOG get 获取慢查询队列

(empty list or set)
127.0.0.1:6379> SLOWLOG len 获取慢查询队列长度
(integer) 0
127.0.0.1:6379> SLOWLOG reset 清空慢查询队列
OK

动态设置慢查询
127.0.0.1:6379> CONFIG set slowlog-max-len 1
OK

127.0.0.1:6379> CONFIG set slowlog-log-slower-than 1000
OK