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