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