Nagios failing to check services

[Jason Lancaster]

Matt,
You might want to log into the nagios web interface and load up all 
services. Then sort by "Last Check" with the newest at the top. Watch it 
for a few hours and see if the checks are never getting updated (or very 
very slow) Also check the performance info button in the web interface 
for average check latency/execution time. Maybe you have a pretty hefty 
latency time?

If you are indeed hitting a bottleneck in performance, it would most 
likely be due to the core nagios.cfg options. I don't see a copy of your 
config files. If you'd like, you can forward me a copy of your nagios.cfg.

Good luck!
Jason

Matt Pounsett wrote:

> On Tue, 16 Sep 2003, Jason Lancaster wrote:
> 
> 
>>I'd begin by investigating dependencies (It sounds to me like you are 
>>using them) Are you suppressing checks if a master service is down? If 
>>you are, that might be a big problem.
> 
> 
> No, I haven't got to the point of testing dependancies yet.  I've got (what I
> believe is) a very simple setup checking 67 services on 13 hosts.   The
> closest I've got to using any sort of dependancies is to set appropriate
> 'parents' for my hosts.
> 
> I've been doing more poking around, and I've found that after about 15 minutes
> up and running, Nagios begins to log a lot of stale service errors.  My log
> between midnight and 10am today (when I restarted Nagios last) consisted of
> about 58% 'stale service' and 'orphan' error messages.  Many of the
> 'rescheduled' checks were never being executed.
> 
> It seems almost as if there's a resources issue, but aside from the web
> server, Nagios is the only thing running on this 1.2GHz PIII.. it only has
> 256MB of RAM, but only about 150MB is used and there's still all that swap...
> 
> Anyway, I posted most of my main configuration.  If this /is/ a config error
> on my part, I'd sure like to know what it is.  I'll be happy to provide
> further details of the config to anyone who has any specific questions to ask.
> I've already supplied all the stuff that looks relevant to me.
> 
> Thanks Jason,
>    Matt
> 



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