Nagios 3 Performance Monitoring
Hendrik Bäcker
andurin at process-zero.de
Mon Oct 29 10:36:29 CET 2007
Hi Ethan,
hi List,
the rescheduling window works so far so good, but not as good as I hoped.
The amount of time has changed from 6-8 hours to 11 hours.
Interesting in my opinion is the fact that the average execution time
from host and service checks continue up to time X and from time X the
latency goes up.
f.e.
I've started the process yesterday at 5 pm.
The host/service execution time start at 100ms / 500ms (host/service)
and goes up (nearly linear) to 300ms / 800ms (host/service) at 4.00 am.
Since 4.00 am the exec times are constant but the latency increases.
I will spent some time today to the code today, perhaps I can find s.th.
causing the rising of execution times.
Any other hints and thoughts are welcome.
-
Hendrik
Ethan Galstad schrieb:
> Hendrik Bäcker wrote:
>> Andreas Ericsson schrieb:
>>> Are you using embedded perl? If so, turn that off.
>>>
>> Small update:
>>
>> Even if ePN is disabled, the curve of latency goes up after 6-8 hours
>> runtime.
>>
>> -
>> Hendrik
>>
>
> Hendrik - Can you try enabling the "experimental" auto-rescheduling
> feature and see if it helps? Set the following vars in the nagios.cfg file:
>
> auto_reschedule_checks=1
> auto_rescheduling_interval=60
> auto_rescheduling_window=300
>
> The rescheduling window of 300 seconds assumes that you have an average
> check interval of 5 minutes. If your avg. check interval is different,
> change the window to match.
>
> If epn is disabled, I'm not sure what would cause latency to go up after
> several hours, other than checks getting scheduled in "clumps" (too
> close together).
>
> I'll be looking forward to see what that results are from this.
>
>
>
> Ethan Galstad
> Nagios Developer
> ___
> Email: nagios at nagios.org
> Web: www.nagios.org
>
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