RE: Monit remote servers custom process

[Gokulnath Arjunan]

Hi,

 

I have setup monit with check_program. I am running monit on local server and monit check the program at regular intervel. it is stopping the tomcat server if  thread count is more than my threshold but not starting the tomcat server back.  Getting below log in monit.log. Please suggest what I am missing here.

 

[UTC Jul 31 08:14:59] error    : 'ThreadCount' '/data/scripts/jmx.sh' failed with exit status (35) -- no output from program

[UTC Jul 31 08:14:59] info     : 'ThreadCount' trying to restart

[UTC Jul 31 08:14:59] info     : 'ThreadCount' stop: /opt/tomcat-9620/bin/shutdown.sh

[UTC Jul 31 08:14:59] info     : 'ThreadCount' start: /opt/tomcat-9620/bin/startup.sh

 

Monit configuration:

 

check program ThreadCount with path "/data/scripts/jmx.sh"

start program = "/opt/tomcat/bin/startup.sh"

stop program = "/opt/tomcat/bin/shutdown.sh"

if status > 35 then restart

 

 

jmx.sh

 

#!/bin/bash

TC=`/usr/local/nagios/libexec/check_jmx -U service:jmx:rmi:///jndi/rmi://localhost:9652/jmxrmi -O java.lang:type=Threading -A ThreadCount | cut -d '=' -f2 | cut -d '|' -f1`

if [ $TC -gt 35 ]

then

exit $TC

else

exit $TC

fi

 

Thanks

Gokul

 

 

From: address@hidden [mailto:address@hidden On Behalf Of Hearns, John
Sent: Friday, May 23, 2014 7:25 PM
To: This is the general mailing list for monit
Subject: RE: Monit remote servers custom process

 

Hi,

I am planning to use monit for below purpose. Can I achieve below cases by using monit? I installed monit and trying to find the right configuration. But I am unable to get the configuration for remote server monitor.  

Monitor remote server custom process without pid file from monit server.
Restart remote server custom process from monit server based on error/exception.
Alert remote server custom process if it is down.


Yes, you can do this.

Use a 'check program'


check program remote-service with path "/usr/local/bin/remote-service"


The script in /usr/local/bin will ssh into the remote system and perform the checks you want,
Perhaps by running the 'pgrep' command.
If the script sees that the remote service is OK
exit0

If the remote service is down
exit 1


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