high latency

[Andreas Ericsson]

On 12/02/2010 04:59 PM, Daniel Wittenberg wrote:
> Yeah, for giggles I went back further through the archives last night
> and found stuff back to 2.x series, and not much has seemed to help.  I
> killed some of my mis-behaving active checks, and that dropped to about
> 20 seconds, then went up to about 35-50.  So while that's better, I have
> A LOT more hosts and service checks to add, and am afraid it'll go nuts
> when I dump more on.  I think I've tried about all the config options I
> could find and some helped, some didn't seem to, but  there should be
> plenty of horsepower on the machine to run this much faster so not sure
> why it's not.
> 
> 
> 
> Dan
> 
> 
> 
> From: Assaf Flatto [mailto:nagios at flatto.net]
> Sent: Wednesday, December 01, 2010 11:26 AM
> To: Nagios Users List
> Cc: Daniel Wittenberg
> Subject: Re: [Nagios-users] high latency
> 
> 
> 
> dan
> 
> there were a couple of discussions on the list that dealt with latency
> issues .
> 
> Have you tried looking at the list archives about the topic ?
> 
> Assaf
> 
> 
> On 01/12/10 16:00, Daniel Wittenberg wrote:
> 
> I've been watching my latency graphs, and showing 2000 seconds for some
> service and host checks.  What I don't understand is I still have idle
> time on the CPU, (quad processor) so I'm curious if the server isn't in
> trouble, why am I seeing such high latency?  Or maybe I misunderstand
> how latency is calculated?  I do have 9 service checks that are failing
> on about 700 hosts if that matters at all.  Trying to tweak the
> performance to the max on this so any insight welcome.
> 

Ditch your performance-data processing and see if that helps. You might
also want to get rid of embedded perl. It's been known to cause really
weird errors (although primarily memory leaks).

You'll also want to get rid of obsessive host and service commands.

How large is your installation and what hardware and system are you
running it on?

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231

Considering the successes of the wars on alcohol, poverty, drugs and
terror, I think we should give some serious thought to declaring war
on peace.

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