背景
- 我在用这个脚本为了使我的脚本作为服务运行。
- 我正在使用 Linux Mint 17.3 Rosa。
问题
有时启动/停止有效，有时无效。有时，我必须手动终止该进程，因为服务停止命令不会执行此操作。
请注意，该脚本使用该daemon工具。
#!/bin/sh
name="TEST"
# The path of the client executable
command="${HOME}/myscript.sh"
# Any command line arguments for the client executable
command_args=""
# The path of the daemon executable
daemon="/usr/bin/daemon"
[ -x "$daemon" ] || exit 0
[ -x "$command" ] || exit 0
# Note: The following daemon option arguments could be in /etc/daemon.conf
# Any command line arguments for the daemon executable (when starting)
daemon_start_args="" # e.g. --inherit --env="ENV=VAR" --unsafe
# The pidfile directory (need to force this so status works for normal users)
pidfiles="/var/run"
# The user[:group] to run as (if not to be run as root)
user=""
# The path to chroot to (otherwise /)
chroot=""
# The path to chdir to (otherwise /)
chdir=""
# The umask to adopt, if any
umask=""
# The syslog facility or filename for the client's stdout (otherwise discarded)
stdout="daemon.info"
# The syslog facility or filename for the client's stderr (otherwise discarded)
stderr="daemon.err"
case "$1" in
start)
# This if statement isn't strictly necessary but it's user friendly
if "$daemon" --running --name "$name" --pidfiles "$pidfiles"
then
echo "$name is already running."
else
echo -n "Starting $name..."
"$daemon" --respawn $daemon_start_args \
--name "$name" --pidfiles "$pidfiles" \
${user:+--user $user} ${chroot:+--chroot $chroot} \
${chdir:+--chdir $chdir} ${umask:+--umask $umask} \
${stdout:+--stdout $stdout} ${stderr:+--stderr $stderr} \
-- \
"$command" $command_args
echo done.
fi
;;
stop)
# This if statement isn't strictly necessary but it's user friendly
if "$daemon" --running --name "$name" --pidfiles "$pidfiles"
then
echo -n "Stopping $name..."
"$daemon" --stop --name "$name" --pidfiles "$pidfiles"
echo done.
else
echo "$name is not running."
fi
;;
restart|reload)
if "$daemon" --running --name "$name" --pidfiles "$pidfiles"
then
echo -n "Restarting $name..."
"$daemon" --restart --name "$name" --pidfiles "$pidfiles"
echo done.
else
echo "$name is not running."
exit 1
fi
;;
status)
"$daemon" --running --name "$name" --pidfiles "$pidfiles" --verbose
;;
*)
echo "usage: $0 <start|stop|restart|reload|status>" >&2
exit 1
esac
exit 0
#!/bin/bash
cd $HOME/Stuff/
$(which node) app.js
尝试解决这个问题
1.使用启动-停止-守护进程作为替代方案，我尝试使用这它使用start-stop-daemon但它根本不运行。
daemon脚本
为了尝试调试这个，我在daemon命令中启用了调试。然后我尝试启动和停止我的服务。
当我启动服务时：
Starting TEST...daemon: debug: handle_stdout_option(spec = daemon.info)
daemon: debug: store_syslog(spec = daemon.info)
daemon: debug: handle_stderr_option(spec = daemon.err)
daemon: debug: store_syslog(spec = daemon.err)
daemon: debug: config()
daemon: debug: config_load(configfile = /etc/daemon.conf)
daemon: debug: config_load(configfile = /root/.daemonrc)
daemon: debug: config_process(target = *)
daemon: debug: config_process(target = TEST)
daemon: debug: handle_name_option(spec = TEST)
daemon: debug: handle_pidfiles_option(spec = /var/run)
daemon: debug: handle_stdout_option(spec = daemon.info)
daemon: debug: store_syslog(spec = daemon.info)
daemon: debug: handle_stderr_option(spec = daemon.err)
daemon: debug: store_syslog(spec = daemon.err)
daemon: debug: sanity_check()
daemon: debug: preventing core files
daemon: debug: constructing pidfile path
daemon: debug: constructing command line arguments for the client
daemon: debug: checking the client command
daemon: debug: safety_check("/home/myPC/myscript.sh")
daemon: debug: checking "/home/myPC/myscript.sh"
daemon: debug: checking #! interpreter: /bin/bash
TEST: debug: becoming a daemon and locking pidfile
done.
并且服务已经启动。
当我停止服务时：
Stopping TEST...daemon: debug: config()
daemon: debug: config_load(configfile = /etc/daemon.conf)
daemon: debug: config_load(configfile = /root/.daemonrc)
daemon: debug: config_process(target = *)
daemon: debug: config_process(target = TEST)
daemon: debug: handle_name_option(spec = TEST)
daemon: debug: handle_pidfiles_option(spec = /var/run)
daemon: debug: sanity_check()
daemon: debug: preventing core files
daemon: debug: constructing pidfile path
daemon: debug: show()
daemon: debug: options:
daemon: debug: config <none>, noconfig 0, name TEST, command "<none>", uid 0, gid 0, init_groups 0, chroot <none>, chdir <none>, umask 22, inherit no, respawn no, acceptable 300, attempts 5, delay 300, limit 0, idiot 0, foreground no, pty no, noecho no, stdout <none>, stderr <none>, errlog daemon.err, dbglog daemon.debug, core no, unsafe no, safe no, stop yes, running no, verbose 0, debug 3
daemon: debug: command line:
daemon: debug: environment:
daemon: debug: SUDO_GID=1000
daemon: debug: MAIL=/var/mail/root
daemon: debug: USER=root
daemon: debug: HOME=/home/myPC
daemon: debug: LC_MONETARY=en_US.UTF-8
daemon: debug: COLORTERM=mate-terminal
daemon: debug: SUDO_UID=1000
daemon: debug: LOGNAME=root
daemon: debug: TERM=xterm
daemon: debug: USERNAME=root
daemon: debug: PATH=.../home/myPC/bin:/usr/bin:/usr/local/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
daemon: debug: LC_ADDRESS=en_US.UTF-8
daemon: debug: DISPLAY=:0.0
daemon: debug: LC_TELEPHONE=en_US.UTF-8
daemon: debug: LANG=en_US.UTF-8
daemon: debug: LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lz=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36:
daemon: debug: XAUTHORITY=/home/myPC/.Xauthority
daemon: debug: SUDO_COMMAND=/usr/bin/env PATH=.../home/myPC/bin:/usr/bin:/usr/local/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin /etc/init.d/moda stop
daemon: debug: LC_NAME=en_US.UTF-8
daemon: debug: SHELL=/bin/bash
daemon: debug: SUDO_USER=myPC
daemon: debug: LC_MEASUREMENT=en_US.UTF-8
daemon: debug: LC_IDENTIFICATION=en_US.UTF-8
daemon: debug: PWD=/home/myPC
daemon: debug: LC_NUMERIC=en_US.UTF-8
daemon: debug: LC_PAPER=en_US.UTF-8
daemon: debug: stopping daemon /var/run/TEST.pid
done.
但服务永远不会停止。
即使我尝试sudo kill -9 PID它也不会总是停止（有时它会停止使用它，但并非始终如一）。
我的调试过程
我正在运行该服务，例如：
sudo /etc/init.d/test start
ps然后我使用和来观察它lsof。
$ ps aux |grep TEST
root 4393 0.0 0.1 20036 1348 ? S 13:41 0:00 /usr/bin/daemon --respawn --name TEST --pidfiles /var/run --debug=3 --stdout daemon.info --stderr daemon.err -- /home/myPC/myscript.sh
root 4394 0.0 0.0 0 0 ? Z 13:41 0:00 [myscript.sh] <defunct>
$ sudo lsof -p 4393
lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs
Output information may be incomplete.
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
daemon 4393 root cwd DIR 8,2 4096 2 /
daemon 4393 root rtd DIR 8,2 4096 2 /
daemon 4393 root txt REG 8,2 190280 923071 /usr/bin/daemon
daemon 4393 root mem REG 8,2 43616 667389 /lib/x86_64-linux-gnu/libnss_files-2.19.so
daemon 4393 root mem REG 8,2 47760 667228 /lib/x86_64-linux-gnu/libnss_nis-2.19.so
daemon 4393 root mem REG 8,2 97296 667121 /lib/x86_64-linux-gnu/libnsl-2.19.so
daemon 4393 root mem REG 8,2 39824 667115 /lib/x86_64-linux-gnu/libnss_compat-2.19.so
daemon 4393 root mem REG 8,2 2924352 927252 /usr/lib/locale/locale-archive
daemon 4393 root mem REG 8,2 1840928 667355 /lib/x86_64-linux-gnu/libc-2.19.so
daemon 4393 root mem REG 8,2 10680 667382 /lib/x86_64-linux-gnu/libutil-2.19.so
daemon 4393 root mem REG 8,2 141574 667155 /lib/x86_64-linux-gnu/libpthread-2.19.so
daemon 4393 root mem REG 8,2 149120 667163 /lib/x86_64-linux-gnu/ld-2.19.so
daemon 4393 root 0u CHR 1,3 0t0 1029 /dev/null
daemon 4393 root 1u CHR 1,3 0t0 1029 /dev/null
daemon 4393 root 2u CHR 1,3 0t0 1029 /dev/null
daemon 4393 root 3uW REG 0,17 5 22031 /run/TEST.pid
daemon 4393 root 4u unix 0xf.. 0t0 22032 socket
daemon 4393 root 7r FIFO 0,9 0t0 22034 pipe
daemon 4393 root 9r FIFO 0,9 0t0 22035 pipe
问题
我注意到的一件事是，在上面的信息中，我可以看到，/run/TEST.pid但这也显示在这里：
/var/run/TEST.pid
守护程序脚本仅使用该/var/run目录。我不确定这是否应该发生？