big performance issue with Nagios 2.5

[Marcel Mitsuto Fucatu Sugano]

On Thu, 2006-12-14 at 08:30 +0100, Daniel Meyer wrote:
> > Do you have passive and active checks? What is the ratio between them?
> > I've runned across this issue, and had to tweak with main config values
> > to solve the problem.
> 
> # Active Host / Service Checks: 286 / 1609
> # Passive Host / Service Checks: 3 / 7

With this low rate between passive/active service checks, I don't
believe that that's the case at all.

> > and Nagios being way too busy for executing active checks. The number of
> > nsca instances was very high and when i've changed the value at
> > command_check_interval from -1 to 2, the latency lowered.
> >
> > So, IMHO, i think it's a question of configurations tests to get
> > performance tunned.
> 
> I'll look into that.

What kind of checks do you run? Is there any custom plugins that take
too long to finish? Paste here the performance table. Output from
nagiostats may also be helpful.

Cheers,

Marcel




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