Antwort: RE: Nagios 3.0.4 performance issue

[Alloo, Vincent]

OK.
What's your advice to have most of my check_uname results coming from cache?
All my nrpe checks have a check_interval of 5. I have modified the check_uname one to check_interval=1 and modified the cached_service_check_horizon to 130, without success.
My cache hit for services is still at 0, and my CPU load is high.
Thanks in advance,

Vincent Alloo
TI France Design Systems Operations Manager
Europe and Middle East IT Services
Texas Instruments France

E-Mail: v-alloo at ti.com
Phone: +33 4 93 22 26 97
Mobile: +33 6 82 13 00 80

-----Original Message-----
From: Sascha.Runschke at gfkl.com [mailto:Sascha.Runschke at gfkl.com] 
Sent: Wednesday, November 19, 2008 4:30 PM
To: nagios-users at lists.sourceforge.net
Subject: [Nagios-users] Antwort: RE: Nagios 3.0.4 performance issue

"Alloo, Vincent" <v-alloo at ti.com> schrieb am 19.11.2008 14:44:35:

> I have the nrpe.cfg config file on NFS. I’d like to not send 
> notifications for all my NRPE checks in case of NFS failure.
> So my intent was to gate notifications on one single check using 
> NRPE on NFS (check_uname on svxnagios02). If this check is failing, 
> notifications will not be sent for the others.
> I’ve found servicegroup as the best way to code this dependency.

Ah, my bad - I've read your configuration too hastily.
But you do know that this means you have actually 3600
more checks to do then without this dependency, as 3600
checks will initiate a dependency check on the check_uname
service if your predictive caching window is not big enough.
Should your machine be able to handle 3600 more active checks
that easily or do you have a big enough caching window?

Regards
        Sascha

PS: The best way would be to not have config files sitting on 
single-point-of-failure NFS
shares ;)

-- 
Sascha Runschke
IT-Infrastruktur

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