debian/rrdcached.init.d

   1 #! /bin/bash
   2 #
   3 # rrdcached - start and stop the RRDtool data caching daemon
   4 # http://oss.oetiker.ch/rrdtool/
   5 #
   6 # Based on the collectd init script.
   7 #
   8 # Copyright (C) 2005-2006 Florian Forster <octo@verplant.org>
   9 # Copyright (C) 2006-2009 Sebastian Harl <tokkee@debian.org>
  10 #
  11
  12 ### BEGIN INIT INFO
  13 # Provides:          rrdcached
  14 # Required-Start:    $local_fs $remote_fs
  15 # Required-Stop:     $local_fs $remote_fs
  16 # Should-Start:      $network
  17 # Should-Stop:       $network
  18 # Default-Start:     2 3 4 5
  19 # Default-Stop:      0 1 6
  20 # Short-Description: start the RRDtool data caching daemon
  21 ### END INIT INFO
  22
  23 set -e
  24
  25 PATH=/sbin:/bin:/usr/sbin:/usr/bin
  26
  27 DISABLE=0
  28
  29 DESC="RRDtool data caching daemon"
  30 NAME=rrdcached
  31 DAEMON=/usr/bin/rrdcached
  32 OPTS="-l unix:/var/run/rrdcached.sock -F"
  33
  34 PIDFILE=/var/run/rrdcached.pid
  35
  36 MAXWAIT=30
  37
  38 # Gracefully exit if the package has been removed.
  39 test -x $DAEMON || exit 0
  40
  41 if [ -r /etc/default/$NAME ]; then
  42         . /etc/default/$NAME
  43 fi
  44
  45 if test "$DISABLE" != 0 -a "$1" == "start"; then
  46         echo "$NAME has been disabled - see /etc/default/$NAME."
  47         exit 0
  48 fi
  49
  50 if test "$ENABLE_COREFILES" == 1; then
  51         ulimit -c unlimited
  52 fi
  53
  54 d_start() {
  55         if test "$DISABLE" != 0; then
  56                 # we get here during restart
  57                 echo -n " - disabled by /etc/default/$NAME"
  58                 return 0
  59         fi
  60
  61         start-stop-daemon --start --quiet --oknodo --pidfile "$PIDFILE" \
  62                 --exec $DAEMON -- $OPTS -p "$PIDFILE"
  63 }
  64
  65 still_running_warning="
  66 WARNING: $NAME might still be running.
  67 In large setups it might take some time to write all pending data to
  68 the disk. You can adjust the waiting time in /etc/default/$NAME."
  69
  70 d_stop() {
  71         PID=$( cat "$PIDFILE" 2> /dev/null ) || true
  72
  73         start-stop-daemon --stop --quiet --oknodo --pidfile "$PIDFILE"
  74
  75         sleep 1
  76         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
  77                 i=0
  78                 while kill -0 $PID 2> /dev/null; do
  79                         i=$(( $i + 2 ))
  80                         echo -n " ."
  81
  82                         if test $i -gt $MAXWAIT; then
  83                                 echo "$still_running_warning" >&2
  84                                 return 1
  85                         fi
  86
  87                         sleep 2
  88                 done
  89                 return 0
  90         fi
  91 }
  92
  93 d_status() {
  94         PID=$( cat "$PIDFILE" 2> /dev/null ) || true
  95
  96         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
  97                 echo "$NAME ($PID) is running."
  98                 exit 0
  99         else
 100                 PID=$( pidof $NAME ) || true
 101
 102                 if test -n "$PID"; then
 103                         echo "$NAME ($PID) is running."
 104                         exit 0
 105                 else
 106                         echo "$NAME is stopped."
 107                 fi
 108         fi
 109         exit 1
 110 }
 111
 112 case "$1" in
 113         start)
 114                 echo -n "Starting $DESC: $NAME"
 115                 d_start
 116                 echo "."
 117                 ;;
 118         stop)
 119                 echo -n "Stopping $DESC: $NAME"
 120                 d_stop
 121                 echo "."
 122                 ;;
 123         status)
 124                 d_status
 125                 ;;
 126         restart|force-reload)
 127                 echo -n "Restarting $DESC: $NAME"
 128                 d_stop
 129                 sleep 1
 130                 d_start
 131                 echo "."
 132                 ;;
 133         *)
 134                 echo "Usage: $0 {start|stop|restart|force-reload|status}" >&2
 135                 exit 1
 136                 ;;
 137 esac
 138
 139 exit 0
 140
 141 # vim: syntax=sh noexpandtab sw=4 ts=4 :
 142