start-stop-daemon 和 mono-service2 是否成功？

Question

有人成功使用 start-stop-daemon 和 mono-service2 吗？我已经为此奋斗了几天，并且已经得到了各种工作，但没有成功地为单一服务获得功能齐全的初始化脚本。

以下是我迄今为止了解到的内容：

1. 单声道或单服务 exe 必须命名为变量 DAEMON（您不能将您的 exe 列为 DAEMON）

2. 您必须使用 --background 标志...否则当从包安装程序（在我的例子中为 deb）执行此脚本时。当安装程序结束时，服务终止（与安装程序分叉处理的方式有关...我还没有调查这么多）。

3. 我已经成功地在其他脚本中列出了带有单服务标志的 pid 文件并使用它来停止守护进程，但由于某种原因它在这里不起作用。因此，下面的脚本不会停止服务 - 不知道为什么。 Start 工作正常。

这是我的部分功能初始化脚本：

#! /bin/sh
### BEGIN INIT INFO
# Provides:          ServiceName
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Starts and Stops Service
# Description:       Service start|stop|restart
### END INIT INFO

# Author: Author
#

# Do NOT "set -e"

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="Description of the service"
NAME=Service.exe
DAEMONNAME=ServiceDaemon.sh
INSTALLDIR=/usr/sbin/
DAEMON=/usr/bin/mono-service2
EXENAME=Service.exe
PIDFILE=/var/run/$DAEMONNAME.pid
DAEMON_ARGS=" -l:$PIDFILE $INSTALLDIR/$EXENAME"
#DAEMON_ARGS=" $INSTALLDIR/$EXENAME"
SCRIPTNAME=/etc/init.d/$DAEMONNAME

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

#
# Function that starts the daemon/service
#
do_start()
{
 # Return
 #   0 if daemon has been started
 #   1 if daemon was already running
 #   2 if daemon could not be started
 start-stop-daemon --start --quiet --background --exec $DAEMON --test > /dev/null \
  || return 1
 start-stop-daemon --start --quiet --background --exec $DAEMON -- \
  $DAEMON_ARGS \
  || return 2
 # Add code here, if necessary, that waits for the process to be ready
 # to handle requests from services started subsequently which depend
 # on this one.  As a last resort, sleep for some time.
}

#
# Function that stops the daemon/service
#
do_stop()
{
 # Return
 #   0 if daemon has been stopped
 #   1 if daemon was already stopped
 #   2 if daemon could not be stopped
 #   other if a failure occurred
 start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --name $NAME
 RETVAL="$?"
 [ "$RETVAL" = 2 ] && return 2
 # Wait for children to finish too if this is a daemon that forks
 # and if the daemon is only ever run from this initscript.
 # If the above conditions are not satisfied then add some other code
 # that waits for the process to drop all resources that could be
 # needed by services started subsequently.  A last resort is to
 # sleep for some time.
 start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
 [ "$?" = 2 ] && return 2
 # Many daemons don't delete their pidfiles when they exit.
 rm -f $PIDFILE
 return "$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"
 do_start
 case "$?" in
  0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
  2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
 esac
 ;;
  stop)
 [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
 do_stop
 case "$?" in
  0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
  2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
 esac
 ;;
  status)
       status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
       ;;
  #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 $?
 #;;
  restart|force-reload)
 #
 # If the "reload" option is implemented then remove the
 # 'force-reload' alias
 #
 log_daemon_msg "Restarting $DESC" "$NAME"
 do_stop
 case "$?" in
   0|1)
  do_start
  case "$?" in
   0) log_end_msg 0 ;;
   1) log_end_msg 1 ;; # Old process is still running
   *) log_end_msg 1 ;; # Failed to start
  esac
  ;;
   *)
    # Failed to stop
  log_end_msg 1
  ;;
 esac
 ;;
  *)
 #echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
 echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
 exit 3
 ;;
esac

:

Answer 1

我们在单一服务方面遇到了很多问题，最终在我们的应用程序中实现了我们自己的“服务”代码。没什么难的，只是抓住一些信号：

UnixSignal intr = new UnixSignal (Signum.SIGINT);
UnixSignal term = new UnixSignal (Signum.SIGTERM);
UnixSignal hup = new UnixSignal (Signum.SIGHUP);
UnixSignal usr2 = new UnixSignal (Signum.SIGUSR2);

UnixSignal[] signals = new UnixSignal[] { intr, term, hup, usr2 };

for (bool running = true; running; )
{
    int idx = UnixSignal.WaitAny(signals);

    if (idx < 0 || idx >= signals.Length) continue;

    log.Debug("daemon: received signal " + signals[idx].Signum.ToString());

    if ((intr.IsSet || term.IsSet)) 
    {
        intr.Reset ();
        term.Reset ();

        log.Debug("daemon: stopping...");

        running = false;
    }
    else if (hup.IsSet)
    {
        // Ignore. Could be used to reload configuration.
        hup.Reset();
    }
    else if (usr2.IsSet)
    {
        usr2.Reset();
        // do something
    }
}

Answer 2

我知道这个问题很旧，但没有公认的答案。我也对此进行了一段时间的修改，并想出了一个守护进程脚本，它对我来说就像一个魅力。我在这里写了博客： http://www.geekytidbits.com/启动-停止-守护程序-with-mono-service2/

Answer 3

我对这个脚本进行了一些小的更改：

• /var/run 中的 pidfile 仅在您以 root 身份运行时才有效 - 如果您尝试在没有 sudo 的情况下运行该脚本，mono-service 将默默失败。

• 使用 --pidfile 而不是 --name 来查找要停止的服务。

Answer 4

do_stop()
{ 

test -f $PIDFILE && kill `cat $PIDFILE` && return 2

 start-stop-daemon --stop --quiet --verbose --oknodo --retry=0/30/KILL/5\ 

--exec mono-service2

 [ "$?" = 2 ] && return 2

 # Many daemons don't delete their pidfiles when they exit.

 rm -f $PIDFILE

 return "$RETVAL"

}

所以它有效，我认为这只是因为你无法通过命令“start-stop-daemon”停止进程
我现在正在学习使用mono，你的邀请对我很有帮助。谢谢。
我的英语很差，请原谅我半生不熟的英语。