[Nagiosplug-devel] Best practice for thresholding

John Vincent nagiosplug-devel at lusis.org
Mon Jun 22 22:20:20 CEST 2009


Nevermind. Sorry for wasting everyone's time. I see that pnp does
indeed support it. The problem is mine.

On Mon, Jun 22, 2009 at 4:18 PM, John Vincent<nagiosplug-devel at lusis.org> wrote:
> On Mon, Jun 22, 2009 at 4:03 PM, John Vincent<nagiosplug-devel at lusis.org> wrote:
>> On Mon, Jun 22, 2009 at 3:42 PM, Ton Voon<ton.voon at opsera.com> wrote:
>>>
>>> On 22 Jun 2009, at 18:22, John Vincent wrote:
>>>
>>>> So I've been attempting to use check_memcached and in the process was
>>>> cleaning up some invalid perfdata output. I also noticed that the
>>>> thresholding is somewhat broken. This plugin, like many database
>>>> plugins, has a hit ratio metric. Hit ratio metrics make the most sense
>>>> when approcahed from a "warning/critical below X%" (at least in my
>>>> mind). So if my hit ratio drops below 75%, I want a warning and if it
>>>> goes below 50% I want a critical.
>>>>
>>>> What's the best way to handle this with Nagios::Plugin? Should the
>>>> logic be done in the script or should it be done in the module itself?
>>>
>>> Nagios::Plugin already supports the thresholds defined in the guidelines:
>>> http://nagiosplug.sourceforge.net/developer-guidelines.html#THRESHOLDFORMAT
>>>
>>> So you should already be able to use the threshold routines in N::P.
>>>
>>> If it doesn't work properly, then that would be a bug.
>>>
>>> Ton
>>>
>>>
>>
>> Ahh okay. Thanks Ton. I wasn't looking hard enough to find what I
>> needed. I was simply looking at it from a greater than/less than
>> scenario as opposed to being outside a given range.
>>
>
> One question that I have regarding these threshold ranges. Should the
> range definitions be passed as-is to the perfdata output or not? If
> so, then pnp is at fault for not handling it properly in this case (or
> I really need to make a custom template to graph it properly.).
> Currently pnp is breaking on "hits=90%;@30:50;30" due to the format of
> the warn value. Just trying to figure out where to go with it.
>




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