Setting a delay works if the polling interval is 1 minute or more.
Polling faster than that and delay does not suffice anymore.
But even with 1 minute delays, it means that I can have a one minute
outage and not know about it if I set a delay.
Scenario where IM detects a condition and then immediately rechecks it
is entirely different. It takes a poll interval (let's say 5 sec) + a
few sec to alert on a condition that has been double checked and even
triple checked if needed vs. if a delay feature is used, at least a
minute will go by. A minute can be a lot for some applications.
__________________________________________________________
Andrey Gordon | Integrity Interactive | Network Engineer |
+1.781.398.3518
On Sep 1, 2009, at 4:25 PM, Richard E. Brown wrote:
Hi Andrey,
--- You wrote:
But if in fact it stays like that for 3-4 runs of the probe I'd like
to know even at 3am. Note that 3-4 runs of the probe does not equal
2 min (30 sec poll). If my page is out for 2 min I'm in a bigger
trouble, much bigger then if it throws a 500 error for a fraction of
a second....
--- end of quote ---
Another way to do this is to put a delay on the notifier.
InterMapper detects that it's down, but will delay the alert if you
configure it that way.
In the notifier list, there are checkboxes for all the conditions,
plus columns for Delay, Repeat, and Count. See:
http://download.dartware.com/docs/UserGuide/Content/06-Notifiers/Attaching_A_Notifier.htm
If you like, InterMapper will delay sending the notification for one
minute, two minutes, etc. If the device is still in that state at
the end of that interval, you'll get the alert.
People often use this for a couple purposes:
- to ignore flapping (when a couple outages in a minute or two can
safely be ignored)
- for problem escalation - notify one party immediately, and if it's
not taken care of within N minutes, notify a second party.
Rich Brown [email protected]
Dartware, LLC http://www.dartware.com
66-7 Benning Street Telephone: 603-643-9600
West Lebanon, NH 03784-3407 Fax: 603-643-2289
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