redis基础4-redis服务 - 数据库编程

redis配置文件

主要遇到的问题是：redis.pid没有找到

下面是我的配置文件

# By default Redis does not run as a daemon. Use 'yes' if you need it.
# Note that Redis will write a pid file in /var/run/redis.pid when daemonized.
daemonize yes

# When running daemonized, Redis writes a pid file in /var/run/redis.pid by
# default. You can specify a custom pid file location here.

var/run的执行权限

lrwxrwxrwx  1 root root        4 Feb 24 06:57 run -> /run

然后我用sudo touch redis.pid

root@ubuntu:/home/fuhui/redis-2.8.19/utils# pwd
/home/fuhui/redis-2.8.19/utils

root@ubuntu:/home/fuhui/redis-2.8.19/utils# sh redis_init_script stop
/var/run/redis_6379.pid does not exist, process is not running

不知道是不是权限的问题，修改o权限

fuhui@ubuntu:/var/run$ sudo chmod o+wx redis.pid -rw-r--rwx 1 root root 0 Jun 22 08:39 redis.pid

难道是服务并没有重启？

fuhui@ubuntu:/var/run$ ps -ef | grep 'redis' fuhui 2452 1 0 07:55 ? 00:00:04 redis-2.8.19/src/redis-server *:6379 fuhui 2908 2756 0 08:46 pts/13 00:00:00 grep --color=auto redis fuhui@ubuntu:/var/run$ kill -9 2452 fuhui@ubuntu:/var/run$ ps -ef | grep 'redis' fuhui 2910 2756 0 08:46 pts/13 00:00:00 grep --color=auto redis

重启一下试试：搞定，redis.pid里有了pid号

关闭redis服务

root@ubuntu:/home/fuhui/redis-2.8.19/utils# sh redis_init_script stop /var/run/redis_6379.pid does not exist, process is not running

修改shell文件下面的是原文件，我们要做的其实很简单，只是把路径修改成实际存放的就可以

#!/bin/sh # # Simple Redis init.d script conceived to work on Linux systems # as it does use of the /proc filesystem. REDISPORT=6379 EXEC=/usr/local/bin/redis-server CLIEXEC=/usr/local/bin/redis-cli PIDFILE=/var/run/redis_${REDISPORT}.pid CONF="/etc/redis/${REDISPORT}.conf" 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 ;; stop) if [ ! -f $PIDFILE ] then echo "$PIDFILE does not exist, process is not running" else PID=$(cat $PIDFILE) echo "Stopping ..." $CLIEXEC -p $REDISPORT shutdown while [ -x /proc/${PID} ] do echo "Waiting for Redis to shutdown ..." sleep 1 done echo "Redis stopped" fi ;; *) echo "Please use start or stop as first argument" ;; esac

修改如下：

root@ubuntu:/home/fuhui/redis-2.8.19/utils# cp redis_init_script ../redis_script

看一下proc下是否存在pid

fuhui@ubuntu:/proc$ cd /proc/ fuhui@ubuntu:/proc$ ls -lh | grep 2912 dr-xr-xr-x 9 root root 0 Jun 22 08:47 2912

关闭redis服务测试

 fuhui@ubuntu:~/redis-2.8.19$ src/redis-cli 127.0.0.1:6379> shutdown not connected>

#!/bin/sh # # Simple Redis init.d script conceived to work on Linux systems # as it does use of the /proc filesystem. #REDISPORT=6379 EXEC=/home/fuhui/redis-2.8.19/src/redis-server CLIEXEC=/home/fuhui/redis-2.8.19/src/redis-cli PIDFILE=/var/run/redis.pid CONF="/home/fuhui/redis-2.8.19/redis.conf" 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 ;; stop) if [ ! -f $PIDFILE ] then echo "$PIDFILE does not exist, process is not running" else PID=$(cat $PIDFILE) echo "Stopping ..." $CLIEXEC shutdown while [ -x /proc/${PID} ] do echo "Waiting for Redis to shutdown ..." sleep 1 done echo "Redis stopped" fi ;; *) echo "Please use start or stop as first argument" ;; esac

执行结果

root@ubuntu:/home/fuhui/redis-2.8.19# sh redis_script start Starting Redis server...

root@ubuntu:/home/fuhui/redis-2.8.19# ps -ef | grep 'redis' root 2972 1 0 09:08 ? 00:00:00 /h

redis基础4-redis服务(一)