Why separate hosts and services

Chris Wilson chris at netservers.co.uk
Fri Apr 16 11:38:16 CEST 2004


Hi Andreas,

> > For example, let's assume we have three services, A, B and C. A is a 
> > meta-service, and B and C "depend" on it. A does not have any check of its 
> > own; its state is entirely determined from the states of its dependent 
> > services. If B and C both fail, then A is determined to have failed, and 
> > not otherwise. 
> > 
> This can be done today, using service dependancies.
> 
> > This is not the same as B and C both depending on A, because if B and C
> > both fail, then how does one make A fail automatically in Nagios? I don't
> > think it's possible, do you? 
> 
> Yes. What you're talking about is modifications to the core logic. 
> Having plugins checking this would be 'the long way around'.

I'm sorry, I don't understand. It looks to me like these two answers are 
contradictory. It can be done today, and it requires changes to the core 
logic?

Cheers, Chris.
-- 
_  __ __     _
 / __/ / ,__(_)_  | Chris Wilson -- UNIX Firewall Lead Developer |
/ (_  ,\/ _/ /_ \ | NetServers.co.uk http://www.netservers.co.uk |
\__/_/_/_//_/___/ | 21 Signet Court, Cambridge, UK. 01223 576516 |



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