why can't a servicegroup have no members?

[Andreas Ericsson]

Ralph.Grothe at itdz-berlin.de wrote:
> Sorry, for intercepting your thread.
> 
> But Kevin mentioned an issue that also puzzled me,
> as I only recently started with Nagios, and still are about
> exploring its features.
> 
> I haven't quite understood yet what the difference was between
> the "members" attribute in a servicegroup definition,
> and poulating the "servicegroups" attribute within each service
> definition.
> Is the redundancy only there as "syntactical sugar",
> or is there a completely different scope that separates both?
> 

It's syntactical sugar.

> 
>>-----Original Message-----
>>From: nagios-users-admin at lists.sourceforge.net
>>[mailto:nagios-users-admin at lists.sourceforge.net]On Behalf Of
> 
> Andreas
> 
>>Ericsson
>>Sent: Thursday, August 11, 2005 10:07 AM
>>To: nagios-users at lists.sourceforge.net
>>Subject: Re: [Nagios-users] why can't a servicegroup have no
> 
> members?
> 
>>
>>Kevin Hanser wrote:
>>
>>>I am running Nagios 2.0b4, and I'm trying to create some 
>>
>>servicegroups
>>
>>>for nice display and whatnot.
>>>
>>>I can get them to work fine, as long as I specify at least 
>>
>>one member in
>>
>>>the servicegroups definition... However, I'd like to create a
>>>servicegroup for "router interfaces", and I don't really 
>>
>>want to type in
>>
>>>every description for every router interface I have on every
> 
> router,
> 
>>>when I've already put it into the service definition.  I 
>>
>>see that I can
>>
>>>specify servicegroups in the service definition and that
> 
> would be
> 
>>>perfect for me, except for one thing:  nagios won't let me
> 
> create a
> 
>>>servicegroup w/out any members.
>>>
>>>I would like to create the servicegroup w/no members in its 
>>
>>definition,
>>
>>>and then use the "servicegroups" directive w/in the service 
>>
>>definition
>>
>>>to make each interface a member of the servicegroup.  So I
> 
> guess my
> 
>>>question is... Why is the "members" directive required when 
>>
>>defining a
>>
>>>servicegroup?
>>>
>>
>>It isn't. We're running around 100 installations of Nagios. 
>>All of them 
>>with servicegroups without the "members" directive, and all 
>>of them with 
>>the servicegroups in the service definitions. What's the 
>>error message 
>>you get when trying to run it?
>>
>>-- 
>>Andreas Ericsson                   andreas.ericsson at op5.se
>>OP5 AB                             www.op5.se
>>Lead Developer
>>
>>
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-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


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September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
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