check_freshness detecting staled services in alphabetical order

Marcel webknowledge at gmail.com
Wed Jul 16 00:16:35 CEST 2008


On Tue, Jul 15, 2008 at 7:15 AM, Thomas Guyot-Sionnest <dermoth at aei.ca>
wrote:

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> On 14/07/08 04:40 PM, Marcel wrote:
> > Hey,
> >
> > Have any of you have seen anything like this before?
> >
> > Nagios 2.9, ndoutils 1.4b4.
> >
> > Nagios began to detect staled services in alphabethical order, in
> > batches of almost 400 hosts at a time.
> >
> > check_service_freshness=1
> > service_freshness_check_interval=900
> > check_host_freshness=0
> > host_freshness_check_interval=900
>
> Freshness checking is a scheduled event that runs every 30 seconds or so
> (configurable). If you define passive checks with freshness checking and
> nothing updates them, then they'll all become stale around the same time
> and the loop will likely pick them up at the exact same time.


Yeah, right on, I've already read the documentation and I'm working for more
than 3 years now, but never seen this behaviour before.


>
>
> So unless you have external processes updating these services (people
> usually use nsca to perform this from remote hosts) this is the expected
> behaviour ;).


Indeed. I've a syslog-ng platform to transport passive check results. But
other than that, nothing else different.


> Thomas
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