【redis】设置redis开机自启动

1.将redis.conf文件中 daemonize 配置由no改为 yes

################################# GENERAL #####################################
# 开启redis的守护进程，开启后会生成一个 /var/run/redis.pid文件
daemonize yes

2.创建开机自启动脚本

#在/etc/init.d路径下创建redis文件，脚本内容如下
[root@master ~]# vi /etc/init.d/redis

# chkconfig: 2345 10 90 
#redis服务必须在运行级2，3，4，5下被启动或关闭，启动的优先级是90，关闭的优先级是10。
# description: Start and Stop redis  
 
PATH=/usr/local/bin:/sbin:/usr/bin:/bin
export PATH 
REDISPORT=6379 #端口号，这是默认的，如果你安装的时候不是默认端口号，则需要修改
EXEC=/usr/local/redis-5.0.7/bin/redis-server #redis-server启动脚本的位置，你如果忘了可以用find或whereis找到  
REDIS_CLI=/usr/local/redis-5.0.7/bin/redis-cli #redis-cli客户端启动脚本的位置，你如果忘了可以用find或whereis找到  
 
PIDFILE=/run/redis_6379.pid  # redis启动后，这个文件一般在/run路径下
CONF="/usr/local/redis-5.0.7/etc/redis.conf" #redis.conf配置文件的位置，你如果忘了可以用find或whereis找到
AUTH="123456"
 
case "$1" in 
    start)  
        if [ -f $PIDFILE ]  
        then 
            echo "$PIDFILE exists, process is already running or crashed."
        else
            echo "Starting Redis server..."
            $EXEC $CONF  
        fi 
        if [ "$?"="0" ]  
        then 
            echo "Redis is running..."
        fi 
        ;;  
    stop)  
        if [ ! -f $PIDFILE ]  
        then 
            echo "$PIDFILE exists, process is not running."
        else
            PID=$(cat $PIDFILE)  
            echo "Stopping..."
            $REDIS_CLI -p $REDISPORT SHUTDOWN  
            sleep 2 
            while [ -x $PIDFILE ]  
            do
                echo "Waiting for Redis to shutdown..."
                sleep 1 
            done 
            echo "Redis stopped"
        fi 
        ;;  
    restart|force-reload)  
        ${0} stop  
        ${0} start  
        ;;  
    *)  
        echo "Usage: /etc/init.d/redis {start|stop|restart|force-reload}" >&2 
        exit 1 
esac

3.修改redis脚本权限，设置redis脚本文件

[root@master init.d]# chmod 755 redis
#设定redis在各等级为on，“各等级”包括2、3、4、5等级
[root@master init.d]# chkconfig redis on
#启动测试
[root@master init.d]# /etc/init.d/redis start
Starting Redis server...
989:C 04 Mar 2020 16:13:39.423 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
989:C 04 Mar 2020 16:13:39.423 # Redis version=5.0.7, bits=64, commit=00000000, modified=0, pid=989, just started
989:C 04 Mar 2020 16:13:39.423 # Configuration loaded
Redis is running...
#查看redis启动信息
[root@master ~]# ps -ef |grep redis
root       1302      1  0 13:49 ?        00:00:09 ./redis-server 192.168.225.100:6379
root       1578   1417  0 15:40 pts/1    00:00:00 grep --color=auto redis
#杀死redis进程，kill -9 进程号
[root@master ~]# kill -9 1302
[root@master ~]# ps -ef |grep redis
root       1580   1417  0 15:40 pts/1    00:00:00 grep --color=auto redis

4.重启及验证

[root@master ~]# reboot