Flapping & notification

[Cyril Jaquier]

Hi nagios users,

We are currently using nagios 3.0.2 on Debian/testing. Everything works 
fine. However, something is really annoying with flapping detection and 
notification. Let's take an example.

We have SMS notification using gnokii for CRITICAL and RECOVERED state. 
One service goes into the CRITICAL state and admins receive an SMS. Now, 
the host start flapping between CRITICAL and WARNING state so that 
flapping detection inhibits the notification. Then the service recovers 
but flapping detection is still enabled. After a while the flapping 
detection algorithm enables the notification again.

At this moment, I expect nagios to send a notification saying that the 
service recovered. However, nothing happens and the admins do not know 
if the service is still CRITICAL or not.

Maybe we are doing something wrong but I think this makes the flapping 
detection feature a bit "unreliable" as you will miss important events.

Any suggestions?

Thanks,

Cyril Jaquier

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