In my opinion it'useless in this scenario; the official doc says:
Volatile services differ from normal services in three important ways.
*/Each time/ they are checked* when they are in a hard non-OK state, and
the check returns a non-OK state (i.e. no state change has occurred)...
But in my setup passive services are never checked (they are trap
collectors, and my devices send traps on state change).
Let's suppose this scenario:
1. interface Gi0/1 on catalyst switch goes down
2. the switch sends a linkDown trap to the manager
3. the manager decodes the event and submits the alert via nagios.cmd
4. the service associated with that switch changes it's state to critical
5. the contacts are notified (the first time)
6. that's all...contacts will never be notified again until a new
linkDown trap is processed
Martin Melin wrote:
Just use the built in feature for this: is_volatile.
See http://nagios.sourceforge.net/docs/2_0/volatileservices.html
Regards,
Martin Melin
On Tue, Nov 16, 2010 at 10:41 PM, Alberto Menichetti
alb.meniche...@tai.it wrote:
Hi all,
I noticed the same strange behavior, but I don't think it's the right
behavior.
Operating in this way, a linkDown trap will be notified only once (in fact
the sender device will generate a single trap in response to state change).
Is it possibile to modify this behavior?
Hall, JC wrote:
After some testing, it looks like it will only re-notify after receiving
another passive check result. It won't simply re-notify because it's still
in a non-ok state after the notification_interval has expired. So to combat
this I just used the check freshness attribute to re-execute my external
script and feed the passive check result into nagios and thus re-sending a
non-ok notification at what would have been the interval for notifications.
So technically my external scripts are running at every interval to check
the freshnes, not only when it's called for by my event_handler from another
active service check... which I'm ok with.
-Original Message-
From: Andreas Ericsson [mailto:a...@op5.se]
Sent: Friday, November 12, 2010 5:00 AM
To: Nagios Users List
Cc: Hall, JC
Subject: Re: [Nagios-users] Notifications on passive service checks
On 11/11/2010 11:27 PM, Hall, JC wrote:
Is it accurate that Nagios will only send 1 notification for a
passive service check?
IE, the notification_interval definition for a passively checked
service won't instruct Nagios to re-send a notification such as with
actively checked services?
To be honest, I haven't got the faintest idea. An educated guess is
that it will re-send the notification if it receives another passive
check-result and enough time has passed though, or that it simply
re-sends the notification when enough time has passed.
If you try and find out, let me know either way and I'll amend the
docs.
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