A question about performance

[Chet Luther]

On 7/7/06, Janet Post <Janet.Post at excapsa.ca> wrote:
> I have a question about performance.  The Active checks shows that
> nagios is only completing 98.6% of the checks in an hour, but my latency
> is showing and average of under a minute.
>
> Does this mean that 1.4% of my checks, (26 checks in this case), are not
> being run at all?
>
> And what exactly is latency?  Is the amount of time it takes for checks
> to run?  Wouldn't this be the same as check execution time?

Yes, it means that 1.4% of your checks aren't running properly if
they're supposed to have an interval of less than an hour.  Normally
this number represents your passive service checks.

Check execution time is the duration of the plugin runtime.  Latency
is how long after the scheduled check time that the check started
running.  Latency is the critical number to keep low Nagios working
properly.

-- 
Chet Luther
chet.luther at gmail.com

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