Downtime discrepancy
Andrew Davis
nccomp at gmail.com
Tue May 19 20:14:24 CEST 2009
Thanks. The one time I don't read the docs first and that proves to be
the solution...
A. Davis
Email: nccomp at gmail.com
"There is no limit to what a man can accomplish
if he doesn't care who gets the credit." - Ronald Reagan
Chris Waters wrote:
> From the docs:
>
>
> *_Fixed vs. Flexible Downtime_*
>
> When you schedule downtime for a host or service through the web
> interface you'll be asked if the downtime is fixed or flexible. Here's
> an explanation of how "fixed" and "flexible" downtime differs:
>
> "Fixed" downtime starts and stops at the exact start and end times
> that you specify when you schedule it. Okay, that was easy enough...
>
> "Flexible" downtime is intended for times when you know that a host or
> service is going to be down for X minutes (or hours), but you don't
> know exactly when that'll start. When you schedule flexible downtime,
> Nagios will start the scheduled downtime sometime between the start
> and end times you specified. The downtime will last for as long as the
> duration you specified when you scheduled the downtime. This assumes
> that the host or service for which you scheduled flexible downtime
> either goes down (or becomes unreachable) or goes into a non-OK state
> sometime between the start and end times you specified. The time at
> which a host or service transitions to a problem state determines the
> time at which Nagios actually starts the downtime. The downtime will
> then last for the duration you specified, even if the host or service
> recovers before the downtime expires. This is done for a very good
> reason. As we all know, you can think you've got a problem fixed (and
> restart a server) ten times before it actually works right. Smart, eh?
>
> Flexible means nagios expects the host to go down within the "window"
> you have specified for the duration you specified.
>
>
>
> ------------------------------------------------------------------------
> *From:* Andrew Davis [mailto:nccomp at gmail.com]
> *Sent:* Tuesday, May 19, 2009 9:59 AM
> *To:* nagios-users at lists.sourceforge.net
> *Subject:* [Nagios-users] Downtime discrepancy
>
> Looking at my hosts that are scheduled for downtime, I noticed this:
>
> ns2 05-19-2009 10:55:04 adavis Rebuilding with CentOS
> 05-19-2009 10:54:43 05-19-2009 12:54:43 Flexible 0d 3h 0m
> 0s 49 N/A Delete/Cancel This Scheduled Downtime Entry
>
> How is it possible to have downtime scheduled from 10:54:43 to
> 12:54:43 yet have a duration of 3 hours??? Something appears to be amiss.
>
> In fact, even though it was marked as flexible and with a duration of
> 3 hours, 12:54:43 just passed and the system is no longer listed as
> being under downtime, yet it should be as it was scheduled for 3 hours
> of downtime.
> --
>
>
> A. Davis
> Email: nccomp at gmail.com
>
> "There is no limit to what a man can accomplish
> if he doesn't care who gets the credit." - Ronald Reagan
>
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