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 cpufrequtils
  15 # Should-Stop:       $network $named $syslog
  16 # Default-Start:     2 3 4 5
  17 # Default-Stop:      0 1 6
  18 # Short-Description: manage the statistics collection daemon
  19 # Description:       collectd is the statistics collection daemon.
  20 #                    It is a small daemon which collects system information
  21 #                    periodically and provides mechanisms to monitor and store
  22 #                    the values in a variety of ways.
  23 ### END INIT INFO
  24
  25 set -e
  26
  27 . /lib/lsb/init-functions
  28
  29 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
  30
  31 DISABLE=0
  32
  33 DESC="statistics collection and monitoring daemon"
  34 NAME=collectd
  35 DAEMON=/usr/sbin/collectd
  36
  37 CONFIGFILE=/etc/collectd/collectd.conf
  38 PIDFILE=/var/run/collectd.pid
  39
  40 USE_COLLECTDMON=1
  41 COLLECTDMON_DAEMON=/usr/sbin/collectdmon
  42 COLLECTDMON_PIDFILE=/var/run/collectdmon.pid
  43
  44 MAXWAIT=30
  45
  46 # Gracefully exit if the package has been removed.
  47 test -x $DAEMON || exit 0
  48
  49 if [ -r /etc/default/$NAME ]; then
  50         . /etc/default/$NAME
  51 fi
  52
  53 if test "$DISABLE" != 0 -a "$1" == "start"; then
  54         echo "$NAME has been disabled - see /etc/default/$NAME."
  55         exit 0
  56 fi
  57
  58 if test ! -e "$CONFIGFILE" -a "$1" == "start"; then
  59         echo "Not starting $NAME - no configuration ($CONFIGFILE) found."
  60         exit 0
  61 fi
  62
  63 if test "$ENABLE_COREFILES" == 1; then
  64         ulimit -c unlimited
  65 fi
  66
  67 if test "$USE_COLLECTDMON" == 1; then
  68         _PIDFILE="$COLLECTDMON_PIDFILE"
  69 else
  70         _PIDFILE="$PIDFILE"
  71 fi
  72
  73 check_config() {
  74         if ! $DAEMON -t -C "$CONFIGFILE"; then
  75                 if test -n "$1"; then
  76                         echo "$1" >&2
  77                 fi
  78                 exit 1
  79         fi
  80 }
  81
  82 d_start() {
  83         if test "$DISABLE" != 0; then
  84                 # we get here during restart
  85                 echo -n " - disabled by /etc/default/$NAME"
  86                 return 0
  87         fi
  88
  89         if test ! -e "$CONFIGFILE"; then
  90                 # we get here during restart
  91                 echo -n " - no configuration ($CONFIGFILE) found."
  92                 return 0
  93         fi
  94
  95         check_config
  96
  97         if test "$USE_COLLECTDMON" == 1; then
  98                 start-stop-daemon --start --quiet --oknodo --pidfile "$_PIDFILE" \
  99                         --exec $COLLECTDMON_DAEMON -- -P "$_PIDFILE" -- -C "$CONFIGFILE"
 100         else
 101                 start-stop-daemon --start --quiet --oknodo --pidfile "$_PIDFILE" \
 102                         --exec $DAEMON -- -C "$CONFIGFILE" -P "$_PIDFILE"
 103         fi
 104 }
 105
 106 still_running_warning="
 107 WARNING: $NAME might still be running.
 108 In large setups it might take some time to write all pending data to
 109 the disk. You can adjust the waiting time in /etc/default/collectd."
 110
 111 d_stop() {
 112         PID=$( cat "$_PIDFILE" 2> /dev/null ) || true
 113
 114         start-stop-daemon --stop --quiet --oknodo --pidfile "$_PIDFILE"
 115
 116         sleep 1
 117         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
 118                 i=0
 119                 while kill -0 $PID 2> /dev/null; do
 120                         i=$(( $i + 2 ))
 121                         echo -n " ."
 122
 123                         if test $i -gt $MAXWAIT; then
 124                                 echo "$still_running_warning" >&2
 125                                 return 1
 126                         fi
 127
 128                         sleep 2
 129                 done
 130                 return 0
 131         fi
 132 }
 133
 134 d_status() {
 135         PID=$( cat "$_PIDFILE" 2> /dev/null ) || true
 136
 137         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
 138                 echo "collectd ($PID) is running."
 139                 exit 0
 140         else
 141                 PID=$( pidof collectd ) || true
 142
 143                 if test -n "$PID"; then
 144                         echo "collectd ($PID) is running."
 145                         exit 0
 146                 else
 147                         if test -f "$_PIDFILE"; then
 148                                 echo "collectd is stopped but PID file exists."
 149                                 exit 1
 150                         fi
 151                         echo "collectd is stopped."
 152                         exit 3
 153                 fi
 154         fi
 155         echo "status of collectd unknown."
 156         exit 4
 157 }
 158
 159 case "$1" in
 160         start)
 161                 echo -n "Starting $DESC: $NAME"
 162                 d_start
 163                 echo "."
 164                 ;;
 165         stop)
 166                 echo -n "Stopping $DESC: $NAME"
 167                 d_stop
 168                 echo "."
 169                 ;;
 170         status)
 171                 d_status
 172                 ;;
 173         restart|force-reload)
 174                 echo -n "Restarting $DESC: $NAME"
 175                 check_config "Not restarting collectd."
 176                 d_stop
 177                 sleep 1
 178                 d_start
 179                 echo "."
 180                 ;;
 181         *)
 182                 echo "Usage: $0 {start|stop|restart|force-reload|status}" >&2
 183                 exit 1
 184                 ;;
 185 esac
 186
 187 exit 0
 188
 189 # vim: syntax=sh noexpandtab sw=4 ts=4 :
 190