More on notifications and reboot monitoring

[Carson Gaspar]

--On Monday, January 10, 2005 12:36 AM -0600 Ethan Galstad 
<nagios at nagios.org> wrote:

> On 7 Jan 2005 at 14:37, Andreas Ericsson wrote:
>
>
> This isn't really a bug that you want to fix, as it will cause a lot
> of not-so-great side effects.  When you schedule downtime for a host,
> anything that happens during that time is fair game and is ignored
> for purposes of notification (that's why its in downtime).  When
> downtime ends, Nagios will not notify about a problem that happened
> during that downtime - that's what downtime was for.  If the problem
> continues after downtime (i.e. an active check returns a problem),
> then a notification can occur.

But there will _be_ no checks (other than ping) after the downtime if 
anything went wrong, because the host will still be down.

> I would use active checks as Andreas suggested for checking host
> availability.  Passive-only checks might be troublesome to implement
> reliably.

I can't. They just don't scale to the number of hosts I need to monitor, in 
Nagios's current incarnations (including 2.0 beta).

Ah well, I have a solution that works. I'm not thrilled with it, but it 
handles every corner case I can think of. And will scale to a very large 
number of hosts. Is anyone else here using Nagios to monitor >1000 hosts? 
My target (right now) is 2k hosts per monitoring server, and a total of 
about 12k hosts monitored.

Once I've finished rolling this out, and have better performance data, I'll 
be writing it up and will post a link here. With luck, my corporate lords 
and masters will allow me to release the source code to my client side 
monitor agent and my server side queueing server. Our config management 
code has too many proprietary DB hooks to be useful anywhere else.

-- 
Carson



-------------------------------------------------------
The SF.Net email is sponsored by: Beat the post-holiday blues
Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek.
It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null