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Make traditional init script fail if new config file is broken

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Instead of assuming that upgrade is always successful, check if a new
process actually started. Do not kill old process if the new one
failed.
This commit is contained in:
Janusz Dziemidowicz 2015-09-24 14:51:46 +02:00
parent b7fd0fdd96
commit 4a5d1b6708
1 changed files with 31 additions and 40 deletions
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71
contrib/nghttpx-init.in
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@ -83,19 +83,6 @@ do_stop()
return "$RETVAL"
}
#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
#
# If the daemon can reload its configuration without
# restarting (for example, when it is sent a SIGHUP),
# then implement that here.
#
start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
return 0
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
@ -114,34 +101,38 @@ case "$1" in
esac
;;
status)
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
;;
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
;;
upgrade)
log_daemon_msg "Upgrade $DESC" "$NAME"
pid=`pidofproc -p $PIDFILE $NAME`
case "$?" in
0) echo "Sending USR2 signal to $pid"
kill -USR2 $pid
echo "Waiting for new binary..."
sleep 5
echo "Sending QUIT signal to $pid"
kill -QUIT $pid
log_end_msg 0
;;
*) echo "pidofproc() failed"
log_end_msg 1
;;
esac
;;
#reload|force-reload)
#
# If do_reload() is not implemented then leave this commented out
# and leave 'force-reload' as an alias for 'restart'.
#
#log_daemon_msg "Reloading $DESC" "$NAME"
#do_reload
#log_end_msg $?
#;;
log_daemon_msg "Upgrading $DESC" "$NAME"
oldpid=`pidofproc -p $PIDFILE $NAME`
case "$?" in
0)
log_progress_msg "Sending SIGUSR2 to $oldpid..."
kill -USR2 $oldpid
log_progress_msg "Waiting for new binary..."
for i in 1 2 3 4 5 ; do
sleep 1
newpid=`pidofproc -p $PIDFILE $NAME`
if [ "$newpid" != "$oldpid" ] ; then
break
fi
done
if [ "$newpid" != "$oldpid" ] ; then
log_progress_msg "Sending SIGQUIT to $oldpid..."
kill -QUIT $oldpid
log_end_msg 0
else
log_progress_msg "New binary failed to start"
log_end_msg 1
fi
;;
*)
log_progress_msg "pidofproc() failed"
log_end_msg 1
;;
esac
;;
restart|force-reload)
#
# If the "reload" option is implemented then remove the