Dependencies - a little confused.

[Andreas Ericsson]

Leonardo Henrique Machado wrote:
> On Wed, 12 Jan 2005 12:55:06 -0500, Eric Loyd <loyd at cyber.kodak.com> wrote:
> 
>> Emmett Hogan wrote: 
>> Okay...now I am REALLY confused.  I do not understand why you would need to
>>make all services dependent on a check_ping service when the Nagios
>>Documentation states:
>>
>>"Whenever a service check results in a non-OK status level, Nagios
> 
> will attempt to > check and see if the host that the service is
> running on is "alive". Typically this is > done by pinging the host
> and seeing if any response is received. If the host check > command
> returns a non-OK state, Nagios assumes that there is a problem with
> 
>>the host. In this situation Nagios will "silence" all potential
> 
> alerts for services
> 
>>running on the host and just notify the appropriate contacts that the
> 
> host is down > or unreachable. If the host check command returns an OK
> state, Nagios will
> 
>>recognize that the host is alive and will send out an alert for the service that is
> 
>  > misbehaving."
> 
> It says "silence alerts" and not "stop all service checks". Isn't it
> related just to notifications?
> 

Yes, but host checks aren't normally carried out until a service changes 
state, so you wouldn't know if the host came back up without actually 
performing the service checks. Having all services depend on a ping 
service is a rather good idea. It should save you some trouble later on.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer



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