php-fpm和nginx的 reload、restart的区别
-
reload
不会停止服务，用于重新加载配置；并且会检查配置文件的语法
-
restart
会停止服务，重新启动，脚本里写的是执行 stop() 和 start()
-
php-fpm的脚本
#! /bin/sh # # chkconfig: - 84 16 # description: PHP FastCGI Process Manager # processname: php-fpm # config: /opt/remi/php54/root/etc/php-fpm.conf # config: /opt/remi/php54/root/etc/sysconfig/php-fpm # pidfile: /opt/remi/php54/root/var/run/php-fpm/php-fpm.pid # ### BEGIN INIT INFO # Provides: php-fpm # Required-Start: $local_fs $remote_fs $network $named # Required-Stop: $local_fs $remote_fs $network # Short-Description: start and stop PHP FPM # Description: PHP FastCGI Process Manager ### END INIT INFO
Standard LSB functions
#. /lib/lsb/init-functions
Source function library.
. /etc/init.d/functions
Check that networking is up.
. /etc/sysconfig/network
Additional environment file
if [ -f /opt/remi/php54/root/etc/sysconfig/php-fpm ]; then
. /opt/remi/php54/root/etc/sysconfig/php-fpm
fiif [ “$NETWORKING” = “no” ]
then
exit 0
fiRETVAL=0
prog=”php-fpm”
pidfile=${PIDFILE-/opt/remi/php54/root/var/run/php-fpm/php-fpm.pid}
lockfile=${LOCKFILE-/var/lock/subsys/php54-php-fpm}start () {
echo -n $”Starting $prog: “
dir=$(dirname ${pidfile})
[ -d $dir ] || mkdir $dir
daemon –pidfile ${pidfile} /opt/remi/php54/root/usr/sbin/php-fpm –daemonize
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && touch ${lockfile}
}
stop () {
echo -n $”Stopping $prog: “
killproc -p ${pidfile} php-fpm
RETVAL=$?
echo
if [ $RETVAL -eq 0 ] ; then
rm -f ${lockfile} ${pidfile}
fi
}restart () {
stop
start
}reload () {
echo -n $”Reloading $prog: “
if ! /opt/remi/php54/root/usr/sbin/php-fpm –test ; then
RETVAL=6
echo $”not reloading due to configuration syntax error”
failure $”not reloading $prog due to configuration syntax error”
else
killproc -p ${pidfile} php-fpm -USR2
RETVAL=$?
fi
echo
}See how we were called.
case “$1” in
start)
start
;;
stop)
stop
;;
status)
status -p ${pidfile} php-fpm
RETVAL=$?
;;
restart)
restart
;;
reload|force-reload)
reload
;;
configtest)
/opt/remi/php54/root/usr/sbin/php-fpm –test
RETVAL=$?
;;
condrestart|try-restart)
[ -f ${lockfile} ] && restart || :
;;
*)
echo $”Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart|try-restart|configtest}”
RETVAL=2
;;
esacexit $RETVAL
</pre> <p> reload 是这个 <pre> killproc -p ${pidfile} php-fpm -USR2</pre> stop 是这个 <pre> killproc -p ${pidfile} php-fpm </pre> -USR2是操作系统定义的信号，给开发者用于任意用途。其他信号还有 USER1，HUP （重载配置） 参考 <a href="https://stackoverflow.com/questions/5350865/why-do-many-unix-programs-use-signals-like-usr1">Why do many Unix programs use signals like USR1? -
nginx的脚本
参见 Nginx和PHP-FPM的启动/重启脚本