我必须在后台运行 nginx 启动脚本,否则它在运行时不会返回到 shell - 它通过以下方式实现这一点
service nginx start
..或者简单运行..
/etc/init.d/nginx
.. 直接。我必须在后台运行它,然后放弃它..
运行于 Ubuntu 14.04.2,Nginx v 1.4.6
nginx -V 给我们:
nginx version: nginx/1.4.6 (Ubuntu)
built by gcc 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
TLS SNI support enabled
configure arguments: --with-cc-opt='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro' --prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log --lock-path=/var/lock/nginx.lock --pid-path=/run/nginx.pid --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with-pcre-jit --with-ipv6 --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module --with-http_addition_module --with-http_dav_module --with-http_geoip_module --with-http_gzip_static_module --with-http_image_filter_module --with-http_spdy_module --with-http_sub_module --with-http_xslt_module --with-mail --with-mail_ssl_module
.. 并且“bash -x nginx restart”返回..
+ PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+ DAEMON=/usr/sbin/nginx
+ NAME=nginx
+ DESC=nginx
+ '[' -f /etc/default/nginx ']'
+ . /etc/default/nginx
+ test -x /usr/sbin/nginx
+ set -e
+ . /lib/lsb/init-functions
+++ run-parts --lsbsysinit --list /lib/lsb/init-functions.d
++ for hook in '$(run-parts --lsbsysinit --list /lib/lsb/init-functions.d 2>/dev/null)'
++ '[' -r /lib/lsb/init-functions.d/20-left-info-blocks ']'
++ . /lib/lsb/init-functions.d/20-left-info-blocks
++ for hook in '$(run-parts --lsbsysinit --list /lib/lsb/init-functions.d 2>/dev/null)'
++ '[' -r /lib/lsb/init-functions.d/50-ubuntu-logging ']'
++ . /lib/lsb/init-functions.d/50-ubuntu-logging
+++ LOG_DAEMON_MSG=
++ FANCYTTY=
++ '[' -e /etc/lsb-base-logging.sh ']'
++ true
+ case "$1" in
+ echo -n 'Restarting nginx: '
Restarting nginx: + start-stop-daemon --stop --quiet --pidfile /var/run/nginx.pid --exec /usr/sbin/nginx
+ sleep 1
nginx.
+ test_nginx_config
+ /usr/sbin/nginx -t
+ return 0
+ start-stop-daemon --start --quiet --pidfile /var/run/nginx.pid --exec /usr/sbin/nginx --
..然后就什么都没有了。
配置:
nginx.conf
# Generic startup file.
user www-data developers;
#ususally equal to number of CPU's you have. run command "grep processor /proc/cpuinfo | wc -l" to find it
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;
# Keeps the logs free of messages about not being able to bind().
daemon off;
events {
worker_connections 1024;
}
http {
# rewrite_log on;
include mime.types;
default_type application/octet-stream;
access_log /var/log/nginx/access.log;
sendfile on;
# tcp_nopush on;
keepalive_timeout 3;
# tcp_nodelay on;
# gzip on;
#php max upload limit cannot be larger than this
client_max_body_size 13m;
fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;
index index.php index.html index.htm;
# Upstream to abstract backend connection(s) for PHP.
upstream php {
#this should match value of "listen" directive in php-fpm pool
server unix:/var/run/php5-fpm.sock;
}
include sites-enabled/*;
}
任何见解都将不胜感激。
答案1
init 脚本(特别是 helper start-stop-daemon
)希望它启动的程序默认将自身置于后台。但是,有人错误地更改了您的 nginx 配置,以阻止它执行此操作:
# Keeps the logs free of messages about not being able to bind().
daemon off;
本节应完全删除。首先,nginx应该其次,如果出现无法 bind() 的消息,这并不是因为 nginx 正在作为守护进程运行,而是因为当有人尝试启动第二个副本时 nginx 已经在运行。
答案2
#! /bin/sh
### BEGIN INIT INFO
# Provides: nginx
# Required-Start: $all
# Required-Stop: $all
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts the nginx web server
# Description: starts nginx using start-stop-daemon
### END INIT INFO
## MAKE SURE YOUR BASE NGINX DIR IS LISTED HERE
PATH=/usr/local/nginx:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
## THIS IS THE ABSOLUTE PATH TO THE NGINX EXECUTABLE
DAEMON=/usr/local/nginx/sbin/nginx
## Username you want nginx to run as
NAME=nginx
## Process description you want to assign to nginx
DESC=nginx
## Options to pass to nginx - manual config location (see then nginx wiki for more options)
DAEMON_OPTS="-c /etc/nginx/nginx.conf"
test -x $DAEMON || exit 0
# Include nginx defaults if available
if [ -f /etc/default/nginx ] ; then
. /etc/default/nginx
fi
set -e
. /lib/lsb/init-functions
case "$1" in
start)
echo -n "Starting $DESC: "
start-stop-daemon --start --quiet --pidfile /usr/local/nginx/logs/$NAME.pid \
--exec $DAEMON -- $DAEMON_OPTS || true
echo "$NAME."
;;
stop)
echo -n "Stopping $DESC: "
start-stop-daemon --stop --quiet --pidfile /usr/local/nginx/logs/$NAME.pid \
--exec $DAEMON || true
echo "$NAME."
;;
restart|force-reload)
echo -n "Restarting $DESC: "
start-stop-daemon --stop --quiet --pidfile \
/usr/local/nginx/logs/$NAME.pid --exec $DAEMON || true
sleep 1
start-stop-daemon --start --quiet --pidfile \
/usr/local/nginx/logs/$NAME.pid --exec $DAEMON -- $DAEMON_OPTS || true
echo "$NAME."
;;
reload)
echo -n "Reloading $DESC configuration: "
start-stop-daemon --stop --signal HUP --quiet --pidfile /usr/local/nginx/logs/$NAME.pid \
--exec $DAEMON || true
echo "$NAME."
;;
status)
status_of_proc -p /usr/local/nginx/logs/$NAME.pid "$DAEMON" nginx && exit 0 || exit $?
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|restart|reload|force-reload|status}" >&2
exit 1
;;
esac
exit 0