Check if deamons are running

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# 1  
Old 05-02-2002
Check if deamons are running

Does anyone know if there is a UNIX-tool available that constantly will check if (some specific) deamons are running and will notify (via email) if one has failed/stopped?
I searched the web, but so far didn't find anything.
# 2  
Old 05-02-2002
To mannually check the deamon what you can do is
type $ ps -ef | grep <daemon process name> if its running it will show the process with a pid. If its not you may try to
$ /etc/init.d/<daemon process name> [start|stop|restart]. This is only a mannual way instruction i never did a daemon process stop alarm thru mail. Perhaps some others might have some idea.
# 3  
Old 05-02-2002
Hammer & Screwdriver send an email if process fails

this can be done by writing a shell script
I have choosen to write this in korn shell


PROCESSCOUNT=$(ps -ef |grep -v grep |grep -cw <daemon process name>

if [ $PROCESSCOUNT -eq 0 ]
mailx -s "daemon process not running" myaddress@mydomain <msg body


place the above script in crontab and schedule it
to run every 5 mins depends on how soon you want to be notify

please let me know the out come of the above solution.
# 4  
Old 05-02-2002
Here is a fairly simple shell script that we use. It incorporates Killerserv's use of ps command.

You can run this as a cron job every 5 or so...

cat chk_daemon
# check daemon
ps -ef | grep -v grep | grep daemon
# if not found - equals to 1, start it
if [ $? -eq 1 ]
/sbin/init.d/daemon start
echo "eq 0 - daemon found - do nothing"
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