debian/collectd-core.collectd.init.d

   1 #! /bin/bash
   2 #
   3 # collectd - start and stop the statistics collection daemon
   4 # http://collectd.org/
   5 #
   6 # Copyright (C) 2005-2006 Florian Forster <octo@verplant.org>
   7 # Copyright (C) 2006-2009 Sebastian Harl <tokkee@debian.org>
   8 #
   9
  10 ### BEGIN INIT INFO
  11 # Provides:          collectd
  12 # Required-Start:    $local_fs $remote_fs
  13 # Required-Stop:     $local_fs $remote_fs
  14 # Should-Start:      $network $named $syslog $time
  15 # Should-Stop:       $network $named $syslog
  16 # Default-Start:     2 3 4 5
  17 # Default-Stop:      0 1 6
  18 # Short-Description: start the statistics collection daemon
  19 ### END INIT INFO
  20
  21 set -e
  22
  23 PATH=/sbin:/bin:/usr/sbin:/usr/bin
  24
  25 DISABLE=0
  26
  27 DESC="statistics collection and monitoring daemon"
  28 NAME=collectd
  29 DAEMON=/usr/sbin/collectd
  30
  31 CONFIGFILE=/etc/collectd/collectd.conf
  32 PIDFILE=/var/run/collectd.pid
  33
  34 USE_COLLECTDMON=1
  35 COLLECTDMON_DAEMON=/usr/sbin/collectdmon
  36 COLLECTDMON_PIDFILE=/var/run/collectdmon.pid
  37
  38 MAXWAIT=30
  39
  40 # Gracefully exit if the package has been removed.
  41 test -x $DAEMON || exit 0
  42
  43 if [ -r /etc/default/$NAME ]; then
  44         . /etc/default/$NAME
  45 fi
  46
  47 if test "$DISABLE" != 0 -a "$1" == "start"; then
  48         echo "$NAME has been disabled - see /etc/default/$NAME."
  49         exit 0
  50 fi
  51
  52 if ! test -e "$CONFIGFILE"; then
  53         echo "Not starting $NAME - no configuration ($CONFIGFILE) found."
  54         exit 0
  55 fi
  56
  57 if test "$ENABLE_COREFILES" == 1; then
  58         ulimit -c unlimited
  59 fi
  60
  61 if test "$USE_COLLECTDMON" == 1; then
  62         _PIDFILE="$COLLECTDMON_PIDFILE"
  63 else
  64         _PIDFILE="$PIDFILE"
  65 fi
  66
  67 check_config() {
  68         if ! $DAEMON -t -C "$CONFIGFILE"; then
  69                 if test -n "$1"; then
  70                         echo "$1" >&2
  71                 fi
  72                 exit 1
  73         fi
  74 }
  75
  76 d_start() {
  77         if test "$DISABLE" != 0; then
  78                 # we get here during restart
  79                 echo -n " - disabled by /etc/default/$NAME"
  80                 return 0
  81         fi
  82
  83         check_config
  84
  85         if test "$USE_COLLECTDMON" == 1; then
  86                 start-stop-daemon --start --quiet --oknodo --pidfile "$_PIDFILE" \
  87                         --exec $COLLECTDMON_DAEMON -- -P "$_PIDFILE" -- -C "$CONFIGFILE"
  88         else
  89                 start-stop-daemon --start --quiet --oknodo --pidfile "$_PIDFILE" \
  90                         --exec $DAEMON -- -C "$CONFIGFILE" -P "$_PIDFILE"
  91         fi
  92 }
  93
  94 still_running_warning="
  95 WARNING: $NAME might still be running.
  96 In large setups it might take some time to write all pending data to
  97 the disk. You can adjust the waiting time in /etc/default/collectd."
  98
  99 d_stop() {
 100         PID=$( cat "$_PIDFILE" 2> /dev/null ) || true
 101
 102         start-stop-daemon --stop --quiet --oknodo --pidfile "$_PIDFILE"
 103
 104         sleep 1
 105         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
 106                 i=0
 107                 while kill -0 $PID 2> /dev/null; do
 108                         i=$(( $i + 2 ))
 109                         echo -n " ."
 110
 111                         if test $i -gt $MAXWAIT; then
 112                                 echo "$still_running_warning" >&2
 113                                 return 1
 114                         fi
 115
 116                         sleep 2
 117                 done
 118                 return 0
 119         fi
 120 }
 121
 122 d_status() {
 123         PID=$( cat "$_PIDFILE" 2> /dev/null ) || true
 124
 125         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
 126                 echo "collectd ($PID) is running."
 127                 exit 0
 128         else
 129                 PID=$( pidof collectd ) || true
 130
 131                 if test -n "$PID"; then
 132                         echo "collectd ($PID) is running."
 133                         exit 0
 134                 else
 135                         echo "collectd is stopped."
 136                 fi
 137         fi
 138         exit 1
 139 }
 140
 141 case "$1" in
 142         start)
 143                 echo -n "Starting $DESC: $NAME"
 144                 d_start
 145                 echo "."
 146                 ;;
 147         stop)
 148                 echo -n "Stopping $DESC: $NAME"
 149                 d_stop
 150                 echo "."
 151                 ;;
 152         status)
 153                 d_status
 154                 ;;
 155         restart|force-reload)
 156                 echo -n "Restarting $DESC: $NAME"
 157                 check_config "Not restarting collectd."
 158                 d_stop
 159                 sleep 1
 160                 d_start
 161                 echo "."
 162                 ;;
 163         *)
 164                 echo "Usage: $0 {start|stop|restart|force-reload|status}" >&2
 165                 exit 1
 166                 ;;
 167 esac
 168
 169 exit 0
 170
 171 # vim: syntax=sh noexpandtab sw=4 ts=4 :
 172