service dependency

[Jason Martin]

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The idea is that somewhere you are monitoring both mysql-svc and 
apache-svc. If mysql-svc goes down you would get a notification from 
Nagios about it. However, if apache-svc depends on mysql-svc, you already 
know that apache-svc will have problems and thus don't want a notificaiton 
on it if mysql-svc is broken.

- -Jason Martin

On Wed, 28 Jan 2004, Neil wrote:

> Hi Jason, 
> 
> So the purpose of servicedependency is to hold back notifications. Now, my 
> question is, why would we not want to receive emails from nagios when the 
> depended upon service fails? Like in my previous scenario, I still want to 
> know if mysql-svc failed. 
> 
> I hope, the functionality I mentioned can be implemented in the future. If 
> was just a good programmer, I would love to contribute. :( 
> 
> Thanks again. 
> 
> 
> Jason Martin writes: 
> 
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> >> 1. What I want to happen is that when mysql-svc on svr-B fails, I would like 
> >> to get notified that apache-svc on svr-A will not work properly too.
> > That functionalty doesn't exist right now.  Service depenendcies are used 
> > for event *suppression*, not generation. 
> > 
> >> 2. I was also thinking that in the Service Detail(left pane of the nagios 
> >> monitor webpage), the dependent host will have a different color on the 
> >> dependent service if the depended upon service is down. 
> > That functionality is also not implemented at this time. 
> > 
> > - -Jason Martin 
> > 
> > 
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