[op5-users] active checks & merlin

[Andreas Ericsson]

On 09/29/2009 03:34 PM, Russell Jennings wrote:
> DNX is purely for distributed monitoring and does not allow NOC's or
> anything like that. Looked into it a lot, and was sadly disappointed.
> But then I found merlin! and it was love at first sight :)
>

I'm sure the feeling was mutual ;-)

> So with merlin, is it a goal of some sort to have it distribute the
> commands and configs to the nodes in some manner?

Yes, there is.

> Everytime i start
> thinking about the logistics about how to distribute it in a useful
> way my brain goes all gooey.
>

Happily, we use a whiteboard to keep our brains from gooeying out
entirely on us. Programmatically it's not that difficult a chore.
It's fairly timeconsuming though, since one has to have a command
parser inside either the module or the daemon to determine which
commands to send to which poller(s). It's entirely possible we'll
have to add some way of sending commands to the various nodes.

>> This depends. If the status of the check doesn't change from UNKNOWN
>> to something else, it should stay at 3/3. Note that the status of the
>> check has nothing what so ever to do with what the plugin prints for
>> output.
>
> Well, for me, if the state starts out as ok (1/3) then goes unknown
> twice then OK again, the state will still be 2/3. It doesn't reset
> even though it recovered and all... so the next unknown it gets makes
> it 3/3... this is at least the behavior i observed in the nagios
> interface.
>

Aight. That's a bit weird, to say the least. I haven't observed this
myself but I'll try to duplicate it and then report it as a bug in
our bugtracking system (bugs.op5.com).

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231

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