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Ubuntu: YaCy Daemon Script

SNIPPET_TEXT:

1. #! /bin/bash
2.  
3. ### BEGIN INIT INFO
4. # Provides:          yacy
5. # Required-Start:    $local_fs, $remote_fs, $network, $named, $time
6. # Required-Stop:     $local_fs, $remote_fs, $network, $named, $time
7. # Should-Start:      $syslog
8. # Should-Stop:       $syslog
9. # Default-Start:     2 3 4 5
10. # Default-Stop:      0 1 6
11. # Short-Description: Starts YaCy daemon processes with port
12. # Description:       Starts YaCy daemon processes with port
13. ### END INIT INFO
14.  
15. set -e
16.  
17. PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
18. BASEPATH=/MYPATH/yacy
19. DAEMON=${BASEPATH}/startYACY.sh
20. STOPDAEMON=${BASEPATH}/stopYACY.sh
21. KILLDAEMON=${BASEPATH}/killYACY.sh
22. NAME=yacy
23. DESC="yacy daemon"
24. YACYPIDDIR=${BASEPATH}
25. YACYPID=$YACYPIDDIR/yacy.pid
26. DEFAULTSFILE=/etc/default/$NAME
27. USER=yacy
28. GROUP=yacy
29. WAITFORDAEMON=360
30. ARGS=""
31. NICE=""
32.  
33. # Let's try to figure our some sane defaults:
34. if [ -r /proc/sys/fs/file-max ]; then
35.         system_max=`cat /proc/sys/fs/file-max`
36.         if [ "$system_max" -gt "80000" ] ; then
37.                 MAX_FILEDESCRIPTORS=32768
38.         elif [ "$system_max" -gt "40000" ] ; then
39.                 MAX_FILEDESCRIPTORS=16384
40.         elif [ "$system_max" -gt "10000" ] ; then
41.                 MAX_FILEDESCRIPTORS=8192
42.         else
43.                 MAX_FILEDESCRIPTORS=1024
44.                 cat << EOF
45.  
46. Warning: Your system has very few filedescriptors available in total.
47.  
48. Maybe you should try raising that by adding 'fs.file-max=100000' to your
49. /etc/sysctl.conf file.  Feel free to pick any number that you deem appropriate.
50. Then run 'sysctl -p'.  See /proc/sys/fs/file-max for the current value, and
51. file-nr in the same directory for how many of those are used at the moment.
52.  
53. EOF
54.         fi
55. else
56.         MAX_FILEDESCRIPTORS=8192
57. fi
58.  
59. test -x $DAEMON || exit 0
60.  
61. # Include tor defaults if available
62. if [ -f $DEFAULTSFILE ] ; then
63.         . $DEFAULTSFILE
64. fi
65.  
66. wait_for_deaddaemon () {
67.         pid=$1
68.         echo -n "${NAME} stopping"
69.         sleep 1
70.         if test -n "$pid" ; then
71.                 if kill -0 $pid 2>/dev/null ; then
72.                         echo -n "."
73.                         cnt=0
74.                         while kill -0 $pid 2>/dev/null ; do
75.                                 cnt=`expr $cnt + 1`
76.                                 if [ $cnt -gt $WAITFORDAEMON ] ; then
77.                                         echo " FAILED."
78.                                         echo "Killing now ${NAME} (PID ${pid})..."
79.                                         sudo -u ${USER} ${KILLDAEMON}
80.                                         rm -f ${YACYPID}
81.                                         return 1
82.                                 fi
83.                                 sleep 1
84.                                 echo -n "."
85.                         done
86.                 fi
87.         fi
88.         echo " DONE"
89.         rm -f ${YACYPID}
90.         return 0
91. }
92.  
93. check_yacypiddir () {
94.         if test ! -d $YACYPIDDIR; then
95.                 echo "There is no $YACYPIDDIR directory.  Creating one for you."
96.                 mkdir -m 02700 "$YACYPIDDIR"
97.                 chown ${USER}:${GROUP} "$YACYPIDDIR"
98.         fi
99.  
100.         if test ! -x $YACYPIDDIR; then
101.                 echo "Cannot access $YACYPIDDIR directory, are you root?" >&2
102.                 exit 1
103.         fi
104. }
105.  
106. check_already_runnning () {
107.         pid=`cat $YACYPID 2>/dev/null` || true
108.         if test -f $YACYPID -a -n "$pid" -a kill -0 $pid 2>/dev/null ; then
109.                 echo "Alread running (there is ${YACYPID} - PID ${pid})."
110.                 exit 1
111.         fi
112.  
113.         securepid=`fuser ${BASEPATH}/DATA/LOG/yacy00.log 2>/dev/null | awk '{print $1}' 2>/dev/null`
114.         if test -n "${securepid}"; then
115.                 echo "Alread running (there is PID ${securepid})."
116.                 exit 1
117.         fi
118. }
119.  
120. case "$1" in
121.   start)
122.         if [ "$RUN_DAEMON" != "yes" ]; then
123.                 echo "Not starting $DESC (Disabled in $DEFAULTSFILE)."
124.                 exit 0
125.         fi
126.  
127.         if [ -n "$MAX_FILEDESCRIPTORS" ]; then
128.                 echo -n "Raising maximum number of filedescriptors (ulimit -n) to $MAX_FILEDESCRIPTORS"
129.                 if ulimit -n "$MAX_FILEDESCRIPTORS" ; then
130.                         echo "."
131.                 else
132.                         echo ": FAILED."
133.                 fi
134.         fi
135.  
136.         check_yacypiddir
137.  
138.         echo "Starting $DESC: $NAME..."
139.  
140.         check_already_runnning
141.  
142.         if test -n "$NICE" ; then
143.                 nice -n $NICE sudo -u ${USER} $DAEMON $ARGS
144.         else
145.                 sudo -u ${USER} $DAEMON $ARGS
146.         fi
147.         echo "done."
148.         ;;
149.   stop)
150.         echo -n "Stopping $DESC: "
151.         pid=`cat $YACYPID 2>/dev/null` || true
152.         securepid=`fuser ${BASEPATH}/DATA/LOG/yacy00.log 2>/dev/null | awk '{print $1}' 2>/dev/null`
153.  
154.         if test -f $YACYPID -a -n "$pid" -a kill -0 $pid 2>/dev/null; then
155.                 sudo -u ${USER} ${STOPDAEMON}
156.                 wait_for_deaddaemon $pid
157.         elif test -n "${securepid}"; then
158.                 sudo -u ${USER} ${STOPDAEMON}
159.                 wait_for_deaddaemon ${securepid}
160.         else
161.                 echo "not running (there is no $YACYPID)."
162.                 exit 0
163.         fi
164.  
165.         ;;
166.   reload|force-reload)
167.         $0 restart
168.         ;;
169.   restart)
170.         $0 stop
171.         $0 start
172.         ;;
173.   *)
174.         echo "Usage: $0 {start|stop|restart|reload|force-reload}" >&2
175.         exit 1
176.         ;;
177. esac
178.  
179. exit 0

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