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 #
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
23 set -e
25 PATH=/sbin:/bin:/usr/sbin:/usr/bin
27 DISABLE=0
29 DESC="RRDtool data caching daemon"
30 NAME=rrdcached
31 DAEMON=/usr/bin/rrdcached
32 OPTS="-l unix:/var/run/rrdcached.sock -F"
34 PIDFILE=/var/run/rrdcached.pid
36 MAXWAIT=30
38 # Gracefully exit if the package has been removed.
39 test -x $DAEMON || exit 0
41 if [ -r /etc/default/$NAME ]; then
42 . /etc/default/$NAME
43 fi
45 if test "$DISABLE" != 0 -a "$1" == "start"; then
46 echo "$NAME has been disabled - see /etc/default/$NAME."
47 exit 0
48 fi
50 if test "$ENABLE_COREFILES" == 1; then
51 ulimit -c unlimited
52 fi
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
61 start-stop-daemon --start --quiet --oknodo --pidfile "$PIDFILE" \
62 --exec $DAEMON -- $OPTS -p "$PIDFILE"
63 }
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."
70 d_stop() {
71 PID=$( cat "$PIDFILE" 2> /dev/null ) || true
73 start-stop-daemon --stop --quiet --oknodo --pidfile "$PIDFILE"
75 sleep 1
76 if test -n "$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 " ."
82 if test $i -gt $MAXWAIT; then
83 echo "$still_running_warning" >&2
84 return 1
85 fi
87 sleep 2
88 done
89 return 0
90 fi
91 }
93 d_status() {
94 PID=$( cat "$PIDFILE" 2> /dev/null ) || true
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 $NAME ) || true
102 if test -n "$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 }
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
139 exit 0
141 # vim: syntax=sh noexpandtab sw=4 ts=4 :