Dynamic warning/critical thresholds

[Jonathan Gazeley]

On 10/07/12 14:47, C. Bensend wrote:
>
>> On 22/06/12 15:11, Jonathan Gazeley wrote:
>>> I've got a bunch of Nagios plugins that monitor things like
>>> DNS/HTTP/RADIUS hits per second.
>>>
>>> I've set what I believe to be sensible max/min warning thresholds but
>>> what I really want is dynamic thresholds. If some quantity suddenly
>>> doubles or halves, I'd like an alert.
>>>
>>> For example, if I usually serve 10 DNS lookups per second, and suddenly
>>> it is doing 20 per second, that isn't a "fault" but I would like to know
>>> about it, because it might mean there is a problem with the network in
>>> general.
>>>
>>> Is there a way of doing this?
>>>
>>
>> Any ideas?
>
> You've already received two replies, both stating that you'll
> likely have to write some code to do it.  I'm not aware of
> any common plugins out there that calculate rates of change and
> alert appropriately.  Maybe they exist, but I don't recall
> seeing any of them.
>
> Have you tried any of the plugin sites?
>
>

Oh, I didn't receive any replies. Presumably the mails got lost in the 
ether.

I'm happy to write code - I just wondered if there was a built-in way of 
doing this.

Thanks for your response,
Jonathan


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