How to install redis server on CentOS 7/RHEL 7
1、配置yum源
yum install wget
wget https://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-9.noarch.rpm
rpm -ivh epel-release-7-9.noarch.rpm
yum -y update
注：此方法安装的版本为 redis_version:3.2.3
2、安装redis
yum -y install redis
安装文件分布情况
/etc/logrotate.d/redis
/etc/redis-sentinel.conf
/etc/redis.conf
/etc/systemd/system/redis-sentinel.service.d
/etc/systemd/system/redis-sentinel.service.d/limit.conf
/etc/systemd/system/redis.service.d
/etc/systemd/system/redis.service.d/limit.conf
3、启动redis
# systemctl start redis.service
# systemctl status redis.service
● redis.service - Redis persistent key-value database
Loaded: loaded (/usr/lib/systemd/system/redis.service; disabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/redis.service.d
└─limit.conf
Active: active (running) since 五 2017-06-16 14:37:43 CST; 1min 11s ago
Main PID: 32675 (redis-server)
CGroup: /system.slice/redis.service
└─32675 /usr/bin/redis-server 127.0.0.1:6379
4、常用命令
启动：systemctl start redis.service
停止：systemctl stop redis.service
重启：systemctl restart redis.service
查看状态：systemctl status redis.service
设置开启启动：systemctl enable redis.service
禁止开机启动：systemctl disable redis.service
5、测试安装
# redis-cli ping
PONG
返回如上，证明成功。
6、配置启动多个实例
# cp /etc/redis.conf /etc/redis6379.conf
# vim /etc/redis6379.conf
修改为如下参数
pidfile /var/run/redis6379.pid
logfile /var/log/redis/redis6379.log
dbfilename dump6379.rdb
dir /data/redis/6379
daemonize yes
appendfilename "appendonly6379.aof"
#bind 127.0.0.1
通过sed，分别拷贝6380、6390配置文件
# sed 's/6379/6380/g' /etc/redis6379.conf > /etc/redis6380.conf
# sed 's/6379/6390/g' /etc/redis6379.conf > /etc/redis6390.conf
建立6379、6380、6390数据存储目录
# mkdir -p /data/redis/{6379,6380,6390}
配置启动文件
# cd /usr/lib/systemd/system
# cp redis.service redis6379.service
# vi /usr/lib/systemd/system/redis6379.service
[Unit]
Description=Redis persistent key-value database
After=network.target
[Service]
ExecStart=/usr/bin/redis-server /etc/redis6379.conf --daemonize no
ExecStop=/usr/bin/redis-shutdown
User=redis
Group=redis
[Install]
WantedBy=multi-user.target
配置6380、6390启动文件
# sed 's/6379/6380/g' /usr/lib/systemd/system/redis6379.service > /usr/lib/systemd/system/redis6380.service
# sed 's/6379/6390/g' /usr/lib/systemd/system/redis6379.service > /usr/lib/systemd/system/redis6390.service
修改运行用户权限目录
# chown -R redis: /data/redis -R
# chown redis: /etc/redis*
优化
# vim /etc/sysctl.conf
vm.overcommit_memory = 1
net.core.somaxconn=512
# echo never > /sys/kernel/mm/transparent_hugepage/enabled
启动
# systemctl start redis6379
# systemctl start redis6380
# systemctl start redis6390
注：如果通过上面的方式无法启动成功，也可以通过命令手动进行启动
$ redis-server /etc/redis6379.conf
$ redis-server /etc/redis6380.conf
$ redis-server /etc/redis6390.conf
如果要停止
$ redis-cli -p 6380
127.0.0.1:6380> SHUTDOWN
评论