big performance issue with Nagios 2.5

[Mike Holloway]

In nagios.cfg, what values are you using for service_reaper_frequency  
and sleep_time?  I'm using service_reaper_frequency=5 and  
sleep_time=1 for about 10 hosts and 200 services.  You might need to  
adjust your service_reaper_frequency down from the default with as  
many services as you are checking.

-mike




On Dec 11, 2006, at 1:33 AM, Daniel Meyer wrote:

> Hi everyone,
>
> i've ran into a somewhat anoying issue with nagios. First, this is my
> setup:
>
> - Dual Xeon 2.8 HT server running an up to date CentOS 4.4, nagios 2.5
> (rpm from Dag Wieers) and checking approx. 285 hosts and 1500 services
> - active host checks are off
> - host check is replaced by a dummy shell script which just says "ok"
> - approx. 15 services are critical, another 15 warning.
>
> So, whats the issue? When i came back into the office this morning  
> i found
> nagios having a service check latency of about 350 sec (maximum and  
> also
> average). I've had this last week to, and its "fixed" by simply  
> restarting
> the nagios daemon.
>
> I've set up some performance monitoring of nagios and the general  
> linux
> system, and this is what i see:
>
> - The load goes up to 2-2.5 within 12h of nagios running (not the  
> peaks,
> but the 15 minute average)
> - nagios runs fine for about 15-18 hours (not general numbers, but  
> what
> happened this weekend)
> - no unusual notifications over the whole weekend
>
> Any ideas where to look?
> -- 
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> A: Please see /dev/null.              =
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>
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