Hello,
I’m currently running a self-built nginx 1.3.14 on a debian system and
use the attached (and also inlined) init.d script as /etc/init.d/nginx
for managing the service. It’s taken unmodified from debian wheezy.
I somehow managed to get the nginx master process crashing (I have a few
third-party modules compiled in and that’s not the issue to be discussed
right now) upon
$ service nginx reload
The problem is that in this case it just states “Reloading nginx
configuration: nginx.” without me realizing that the master process
crashed and that the new config did not become activated. This is an
issue by itself – I spent some time changing the config over and over
and doing reload attempts and was wondering why the heck the changes did
not take effect.
Another
$ service nginx stop
$ service nginx start
then revealed that something wrong is going on, because ‘stop’ did not
take action, ‘start’ spawned a new master process, but the listening
ports were still blocked by old workers.
I am wondering if there is a neat way to improve the service script in
order to make it realize when the nginx master unexpectedly dies in the
process of performing one of the service actions.
Cheers,
Jan-Philip
#!/bin/sh
BEGIN INIT INFO
Provides: nginx
Required-Start: $local_fs $remote_fs $network $syslog
Required-Stop: $local_fs $remote_fs $network $syslog
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
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/nginx
NAME=nginx
DESC=nginx
Include nginx defaults if available
if [ -f /etc/default/nginx ]; then
. /etc/default/nginx
fi
test -x $DAEMON || exit 0
set -e
. /lib/lsb/init-functions
test_nginx_config() {
if $DAEMON -t $DAEMON_OPTS >/dev/null 2>&1; then
return 0
else
$DAEMON -t $DAEMON_OPTS
return $?
fi
}
case “$1” in
start)
echo -n "Starting $DESC: "
test_nginx_config
# Check if the ULIMIT is set in /etc/default/nginx
if [ -n “$ULIMIT” ]; then
# Set the ulimits
ulimit $ULIMIT
fi
start-stop-daemon --start --quiet --pidfile /var/run/$NAME.pid
–exec $DAEMON – $DAEMON_OPTS || true
echo “$NAME.”
;;
stop)
echo -n "Stopping $DESC: "
start-stop-daemon --stop --quiet --pidfile /var/run/$NAME.pid
–exec $DAEMON || true
echo “$NAME.”
;;
restart|force-reload)
echo -n "Restarting $DESC: "
start-stop-daemon --stop --quiet --pidfile
/var/run/$NAME.pid --exec $DAEMON || true
sleep 1
test_nginx_config
# Check if the ULIMIT is set in /etc/default/nginx
if [ -n “$ULIMIT” ]; then
# Set the ulimits
ulimit $ULIMIT
fi
start-stop-daemon --start --quiet --pidfile
/var/run/$NAME.pid --exec $DAEMON – $DAEMON_OPTS || true
echo “$NAME.”
;;
reload)
echo -n "Reloading $DESC configuration: "
test_nginx_config
start-stop-daemon --stop --signal HUP --quiet --pidfile
/var/run/$NAME.pid
–exec $DAEMON || true
echo “$NAME.”
;;
configtest|testconfig)
echo -n "Testing $DESC configuration: "
if test_nginx_config; then
echo “$NAME.”
else
exit $?
fi
;;
status)
status_of_proc -p /var/run/$NAME.pid “$DAEMON” nginx && exit 0 ||
exit $?
;;
*)
echo “Usage: $NAME
{start|stop|restart|reload|force-reload|status|configtest}” >&2
exit 1
;;
esac
exit 0