Host/Ping check and Nagios performance.

[Marc Powell]

> -----Original Message-----
> From: nagios-users-bounces at lists.sourceforge.net [mailto:nagios-users-
> bounces at lists.sourceforge.net] On Behalf Of Jonathan Call
> Sent: Thursday, June 07, 2007 10:08 AM
> To: nagios-users at lists.sourceforge.net
> Subject: [Nagios-users] Host/Ping check and Nagios performance.
> 
> Is there any reason why Nagios stops running all service checks while
it
> executes check-host-alive/ping on hosts? Can I change that? I cannot
> find a setting to do it.

You cannot change it with Nagios 2 and its necessary behavior if you
perform host checks. The only alternative is to not perform host checks
at all but the you lose network outage detection, suppression of
multiple notifications of service on down hosts and some other things
that may or may not matter to you. The links below provide some
understanding and suggestions. We do not use host checks here at all.

> 
> With the large number of service checks I'm running (1300+) whenever a
> host goes down (or in some cases just stops answering ICMP) it kills
> performance on the Nagios server.
> 

The Host Checks section of
http://nagios.sourceforge.net/docs/2_0/checkscheduling.html and 7, 8 and
9 of http://nagios.sourceforge.net/docs/2_0/tuning.html

--
Marc

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