Determining the success or failure of external commands

[Aaron M. Segura]

Can't you set flexible recurring downtime to solve this?

Ie:  If the MySQL Database goes down between Midnight and 4am, start a
downtime window that last for 1 hour.  If the DB is still down after an
hour, send an alert.

I wrote a PHP script you can use in cron to schedule such a downtime
event:

http://www.nagiosexchange.org/Downtimes.38.0.html?&tx_netnagext_pi1[p_view]=628
http://nagios.sourceforge.net/docs/2_0/downtime.html


On Wed, 2008-01-23 at 09:38 -0500, Scott Sanders wrote:
> In my case, a backup job might take down a MySQL database for anywhere
> from 1 minute to 1 hour, depending on the size of the database.
> Because the time needed to perform the backup is flexible and the time
> when the backup might occur is not always known, I cannot simply set
> the affected services to only notify in a timeperiod that excludes
> certain hours of the days. This is just an example of why I need to
> allow scripts and applications not on the nagios host(s) to be able to
> use the external command pipe. 
> 
> Currently I have a very simple API over https that uses the same auth
> mechanism as the Nagios frontend, and PHP classes that I can use in my
> client side scripts to manipulate this API. I am able to query Nagios
> about object data and status data, as well as submit commands to the
> nagios.cmd pipe. In order for the external command functionality to
> work the way I intend, I need to obtain a response from nagios so my
> server can respond back to the client with the results of processing
> the external command. I am really hoping there is an easy way to do
> this, as replacing the nagios.cmd file with something besides a FIFO
> pipe requires modification to the nagios source and is something I was
> trying to avoid. 
> 
> Thanks for the response. I hope this makes sense.
> 
> -Scott
> 
> On 1/23/08, Andreas Ericsson <ae at op5.se> wrote:
>         Scott Sanders wrote:
>         > Hi,
>         >
>         > I am working on implementing some functionality that will
>         allow me to safely
>         > expose nagios.cmd to external hosts. In my environment there
>         are maintenance
>         > tasks that run periodically which disrupt certain services,
>         causing nagios 
>         > to start generating alerts. Needless to say, I am tired of
>         having my cell
>         > phone go crazy when this happens.
>         
>         In that case, why not ask "How do I keep my cellphone from
>         waking me up?"?
>         Instead, you've thought up a solution to your problem, which
>         generates 
>         other problems, and now you want help solving those other
>         problems.
>         
>         Assuming you know when these disruptive tasks are run, you
>         should simply
>         create a notification_period that doesn't include the
>         sensitive hours 
>         and use that notification_period for the services being
>         disrupted.
>         
>         There are other solutions too, but this one is normally the
>         recommended,
>         so I suggest you try that out first.
>         
>         --
>         Andreas Ericsson                   andreas.ericsson at op5.se
>         OP5 AB                             www.op5.se
>         Tel: +46 8-230225                  Fax: +46 8-230231
> 
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