Simulating downtime in nagios

[Kelly Jones]

On 10/6/08, Tom Throckmorton <throck at gmail.com> wrote:
> On Oct 06 18:57, Kelly Jones wrote:
>> Thanks, Tom.
>>
>> Yes, I'm trying to simulate a host/service outage, not scheduled downtime.
>>
>> The problem w/ submitting a passive check is that the next ACTIVE check
>> will
>> invalidate it. Example: you tell nagios that machine foo is down. That's
>> soft
>> alert 1, not enough to generate any emails. Nagios then active checks foo
>> and
>> sees that it's up. Of course, you can submit another passive check, but
>> you'll ping-pong (flap) between up and down states.
>
> OK, so it sounds like you want to be able to have Nagios temporarily stop
> managing the service check scheduling for this service, long enough for you
> to
> inject some bogus results.  Seems like rescheduling the next active check
> (SCHEDULE_FORCED_SVC_CHECK) would do the right thing as far as pushing the
> next
> scheduled check into the future.  Or maybe you want to disable active checks
> for the service (DISABLE_SVC_CHECK), run your simulation, and then re-enable
> them...?

I may've done it wrong, but SCHEDULE_FORCED_SVC_CHECK means that
nagios won't send any alerts at all. Basically, messing with nagios'
check schedule also screws up its notification schedule.

And, since I'm testing notifications, that's not useful.

I've written several nagios tests myself, and they're all in one Perl
program (each subroutine = one test). For these, simulating downtime
is easy. The script reads downtime from a file and automatically
exits w/ 1 or 2 during downtime instead of running the subroutine.

I'm tempted to run ALL nagios tests in a wrapper, but that seems so
ugly for such a simple? problem.

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