logic/feature request for dependencies

[jmoseley at pgtv.com]

Are you speaking of parental relationships in the hosts config file?  If
so, my understanding is that host check suppression of child hosts is not
inherited.  Ie, in my example, if both routers A and B go down, host checks
for switch C would be repressed, but not for any hosts that are the
children of switch C.  Also, this does not address service dependencies.


James Moseley




                                                                           
             Peter Westlake                                                
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                                       Re: [Nagios-devel] logic/feature    
                                       request for dependencies            
             03/21/2007 12:03                                              
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jmoseley at pgtv.com writes:

> This has probably been brought up before, so I apologize in advance...
>
> According the dependency documentation, when a dependent host (or
service)
> has two or more parental host (or service) dependencies, if just one of
the
> notification dependencies fail, Nagios will repress notifications for the
> dependent host (service).
>
> With lots of folks using redundant routing and switching, I'd like to see
> logic added to allow for configuration of a dependency setup that would
> require both parental dependencies to fail before repressing
notifications
> of the dependent host/service.
>
> For example, we have a switch C that is hooked up to routers A and B.  If
> just one router goes down, we can still get to switch C.  So in our
Nagios
> host dependency setup, we want host notifications for switch C repressed
> only if BOTH routers A and B go down (ie, both notification dependencies
> fail).

The parent dependencies, which are separate to host dependencies or
service dependencies, work in exactly this way. They are specifically
meant for representing network topology, so I think they would be
just what you need.

Peter.


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