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:       $network
  18 # Default-Start:     2 3 4 5
  19 # Default-Stop:      0 1 6
  20 # Short-Description: start the RRDtool data caching daemon
  21 ### END INIT INFO
  22
  23 set -e
  24
  25 PATH=/sbin:/bin:/usr/sbin:/usr/bin
  26
  27 DISABLE=0
  28
  29 DESC="RRDtool data caching daemon"
  30 NAME=rrdcached
  31 DAEMON=/usr/bin/rrdcached
  32
  33 OPTS="-l unix:/var/run/rrdcached.sock"
  34 OPTS="$OPTS -j /var/lib/rrdcached/journal/ -F"
  35 OPTS="$OPTS -b /var/lib/rrdcached/db/ -B"
  36
  37 PIDFILE=/var/run/rrdcached.pid
  38
  39 MAXWAIT=30
  40
  41 # Gracefully exit if the package has been removed.
  42 test -x $DAEMON || exit 0
  43
  44 if [ -r /etc/default/$NAME ]; then
  45         . /etc/default/$NAME
  46 fi
  47
  48 if test "$DISABLE" != 0 -a "$1" == "start"; then
  49         echo "$NAME has been disabled - see /etc/default/$NAME."
  50         exit 0
  51 fi
  52
  53 if test "$ENABLE_COREFILES" == 1; then
  54         ulimit -c unlimited
  55 fi
  56
  57 d_start() {
  58         if test "$DISABLE" != 0; then
  59                 # we get here during restart
  60                 echo -n " - disabled by /etc/default/$NAME"
  61                 return 0
  62         fi
  63
  64         start-stop-daemon --start --quiet --oknodo --pidfile "$PIDFILE" \
  65                 --exec $DAEMON -- $OPTS -p "$PIDFILE"
  66 }
  67
  68 still_running_warning="
  69 WARNING: $NAME might still be running.
  70 In large setups it might take some time to write all pending data to
  71 the disk. You can adjust the waiting time in /etc/default/$NAME."
  72
  73 d_stop() {
  74         PID=$( cat "$PIDFILE" 2> /dev/null ) || true
  75
  76         start-stop-daemon --stop --quiet --oknodo --pidfile "$PIDFILE"
  77
  78         sleep 1
  79         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
  80                 i=0
  81                 while kill -0 $PID 2> /dev/null; do
  82                         i=$(( $i + 2 ))
  83                         echo -n " ."
  84
  85                         if test $i -gt $MAXWAIT; then
  86                                 echo "$still_running_warning" >&2
  87                                 return 1
  88                         fi
  89
  90                         sleep 2
  91                 done
  92                 return 0
  93         fi
  94 }
  95
  96 d_status() {
  97         PID=$( cat "$PIDFILE" 2> /dev/null ) || true
  98
  99         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
 100                 echo "$NAME ($PID) is running."
 101                 exit 0
 102         else
 103                 PID=$( pidof $NAME ) || true
 104
 105                 if test -n "$PID"; then
 106                         echo "$NAME ($PID) is running."
 107                         exit 0
 108                 else
 109                         echo "$NAME is stopped."
 110                 fi
 111         fi
 112         exit 1
 113 }
 114
 115 case "$1" in
 116         start)
 117                 echo -n "Starting $DESC: $NAME"
 118                 d_start
 119                 echo "."
 120                 ;;
 121         stop)
 122                 echo -n "Stopping $DESC: $NAME"
 123                 d_stop
 124                 echo "."
 125                 ;;
 126         status)
 127                 d_status
 128                 ;;
 129         restart|force-reload)
 130                 echo -n "Restarting $DESC: $NAME"
 131                 d_stop
 132                 sleep 1
 133                 d_start
 134                 echo "."
 135                 ;;
 136         *)
 137                 echo "Usage: $0 {start|stop|restart|force-reload|status}" >&2
 138                 exit 1
 139                 ;;
 140 esac
 141
 142 exit 0
 143
 144 # vim: syntax=sh noexpandtab sw=4 ts=4 :
 145