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root/i-scream/projects/cms/source/host/ihost-perl/ihostchk.sh
Revision: 1.1
Committed: Mon Mar 12 23:23:04 2001 UTC (23 years, 8 months ago) by tdb
Content type: application/x-sh
Branch: MAIN
Log Message:
This new script can be run from a cronjob to verify ihost is running. If ihost
is running, it exits silently, and is thus unobtrusive. If ihost is not running,
it will start it up again.

File Contents

# Content
1 #!/bin/sh
2 #
3 # Script to check that ihost is still running, and restart if necessary.
4 #
5 # You probably want to add this to a cronjob, say every 10 minutes:
6 # 0,10,20,30,40,50 * * * * /path/to/ihostchk.sh
7 # And if you find yourself getting e-mails, use the following instead:
8 # 0,10,20,30,40,50 * * * * /path/to/ihostchk.sh >/dev/null 2>&1
9 # NOTE: e-mails should only be sent if an error occurs, so the former is
10 # the best choice for a cronjob.
11 #
12 # $Id$
13 #
14
15 # CHANGE this to the directory of the ihost.pl script
16 ihostdir="/home/cut/tdb1/cvs/source/host/ihost"
17
18 # CHANGE these to represent your filtermanager details
19 fmhost="raptor.ukc.ac.uk"
20 fmport="4567"
21
22
23 ###### You probably don't need to change anything below here ######
24
25 pidfile="ihost.pid"
26 ihost="ihost.pl"
27
28 cd $ihostdir
29
30 # is there a pid file?
31 if test -r $pidfile
32 then
33 # there is a pid file, check to see if it's current
34 ihostpid=`cat $pidfile`
35 if `kill -CHLD $ihostpid >/dev/null 2>&1`
36 then
37 # it's still alive, lets leave it be
38 exit 0
39 fi
40 # old pid file found
41 echo ""
42 echo "Stale $pidfile file, removing..."
43 rm -f $pidfile
44 fi
45
46 # if we got here, we're clear to restart ihost
47 echo ""
48 echo "ihost is not running, starting up..."
49 echo ""
50 ./$ihost $fmhost $fmport &
51 exit 0
52
53 # finished