How to monitor using custom scripts in nagios.

[Anthony Montibello]

Many users assume that people aready are familiar with the little steps,

I agree that it is nice to see some real life examples spelled out some
times.

Personally I always recomed people new to Nagios to keep All the Config
Files
under some kind of source control. (CVS or some other system)
Tony
On Thu, Mar 5, 2009 at 6:41 AM, Martyn <martyn at chetnet.co.uk> wrote:

>  Brill, this is the kind of thing that helps me learn how to use programs,
> wish a few more would post things like this.
>
> Cheers
>
>  ------------------------------
> *From:* vinod.e [mailto:vinod.e at enlume.com]
> *Sent:* 05 March 2009 10:57
> *To:* Nagios-users at lists.sourceforge.net
> *Subject:* [Nagios-users] How to monitor using custom scripts in nagios.
>
>   Hi Friends,
> I Want share My experience  of   monitoring  scripts on  nagios , Very
> simple and Easy.
> I am 3 months experienced with nagios  and  u should  make copy of all your
> modifying  files initially.
>
> Actually I want to  monitor tomcat threads,memory etc.. along with other
> services , i could not find plug ins similar  to  mysql.
> In my office  we have inbuilt scripts  to monitor  tomcat manually.
> On test bases I had taken one of this script  and tested , I had success.
> There are other ways thanks to Mr.Richard Quintin  who  shared his
> knowledge of using nagiosgraph  and scripts to monitor tomcat but my
> suse10.2 , monitoring server have few issues i  could not go head instead
> tried this.
>
> Monitoring   nagios using  scripts.
> Example:
> Monitoring tomcat Threads.
>
> At remote host side i.e where nrpe is installed / monitored box
>
> Created a file tomcat_threads.sh using vi editor
>
> #vi tomcat_threads.sh
> Entered  following  three line code
>
> #!/bin/sh
> totalThreads=`ps -C java -L -o pid,tid,pcpu,state | wc -l`
> echo "Total Threads Available:$totalThreads"
>
> Save the file and quit
>
> Made sure first  script runs at  # prompt.
>
> Moved script to  /usr/local/nagios/libexec  folder if its not created here.
>
> Set permission
> #chmod  755 tomcat_threads.sh
>
> Give ownner ship to nagios user only.
> #chown   nagios:nagios  tomcat_threads.sh
>
>
> #cd /usr/local/nagios/etc
> #vi nrpe.cfg
>
> Append below command  line
>
> command[tomcat_threads.sh]=/usr/local/nagios/libexec/tomcat_threads.sh
>
> Save and quit
>
> Restart  xinetd to make  changes effected.
> #service xinetd restart
>
>
> At monitoring server side /  where nagios monitoring  server  installed.
> #cd /usr/local/nagios/etc/
>
> #vi services.cfg
> Append this  service
>
> define service{
>           use                              generic-service
>           host_name                   amazon
>          service_description       tomcat_threads.sh
>         check_command           check_nrpe!tomcat_threads.sh
>          notifications_enabled     0
>          }
>
> Save and quit
>
> check for erorrs
> #/usr/local/nagios/bin /nagios -v  /usr/local/nagios/etc/nagios.cfg
> correct your erorror if any.
>
> Restart nagios service
> #service nagios restart
>
> DISCLAIMER:
> This is what worked for me  and i am confident i will add as many as
> scripts i want in future.
> You make changes as it suits to you and i own no responsibility  for typo
> error or if some thing  goes wrong.
>
> Please share your knowledge, knowledges grows by sharing while money
> reduces by sharing.
>
> Regards
> Gajula Vinod Kumar Eleshetty
> SYSTEM ADMINISTRATOR/DATA BASE ADMINISTRATOR
> Enlume technologis.
>
>
>
>
>
> ------------------------------------------------------------------------------
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Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA
-OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
-Strategies to boost innovation and cut costs with open source participation
-Receive a $600 discount off the registration fee with the source code: SFAD
http://p.sf.net/sfu/XcvMzF8H
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