parent/child relationship in distribute environment

[HyunSung Jang]

On Wed, Feb 24, 2010 at 9:45 PM, Assaf Flatto <nagios at flatto.net> wrote:

> HyunSung Jang wrote:
>
> first thing to remember is a nagios server has no parent since he is the
> source of test .
> but in a distributed nagios setting there is the exception to the rule.
>
> yes.


> > thank you for your comment,
> > but, I think i already configured like you just said.
> > actually A1,A2 is not a server but it is our access switch i mean
> > there are many servers under A1, A2
> >
> > let me describe my environment again,
> >
> > BB1->A1->server1, server2, nagios1(center), nagios2(for servers under
> > A1), nagios3(for servers under A2), nagios4(just for switch monitoring)
>
> So all nagios monitoring servers are on the same network connected to
> the same switch ?
>
> your are right. all nagios monitoring servers are on the same network and
same switch.


> > BB1->A2->server3, server4...
> >
> > my central server (nagios1) has all objects
> > definition(BB1,A1,A2,server1,server2,server3....etc)
> > and then nagios2 has only 2 defined servers which is server1 and server2
> > nagios3 has server3, server4
> >
> > if I start nagios daemon on nagios3, it shows me an error like
> > "there's no parent definition for server3"
> > because parent for server3 is A2 and parent for A2 is BB1.
> > and I didn't put config for A2 and BB1 to nagios3.
> >
> That it the reason - server3 has a definition of a parent in the file on
> nagios3 , and since the definition does not match the configuration
> files , that is the error you get .
> > I have no problem when i starting nagios in my central server,
> > cuz central server has all configurations of my servers and switches
> >
> > but distributed nagios server which is nagios3 won't start.
> >
> > am I doing right or is there a misunderstanding to config nagios
> properly?
> >
> The distributed nagios server should hold parent/child definition only
> for the hosts they monitor directly, but not for anything "upstream"
> toward the central server, since they are not being monitored from that
> machine , the central server should hold for every thing , so it can
> know the topology and structure , if all the nagios servers are on the
> same switch - the switch should be the parent for the distributed servers .


oh, I got it.
so you mean, "server3" should configured to its parent to nagios2(distribute
monitor server) directly even if
there are A2 and BB1 switches between them. because nagios2 monitor server3
directly.
am I correct?
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