distributed host checks: freshness checking issues

[Pascal Vandeputte]

On Tuesday 07 June 2011 10:12:25 Andreas Ericsson wrote:
> On 06/01/2011 05:51 PM, Pascal Vandeputte wrote:
> > Can anyone confirm that my reasoning is correct? That the master will
> > *always* keep on doing *some* host checks no matter what you configure?
> 
> More or less, yes. It will at least schedule them even if it gets results
> for them, but eventbroker modules can block even forced host checks. I'd
> look into using Merlin, DNX or mod_gearman if I were you. It will do what
> you want with far better performance than NSCA will ever be able to.

Thank you for the confirmation and the tips!

I've done some quick reading on Merlin, DNX and mod_gearman, and while they 
look very interesting, our Nagios setup is probably a little too complex to 
distribute the checks automatically the way we're doing it now.

We have Nagios slaves ("workers") in multiple, independent locations, and 
we're exploiting that to the fullest by running different service checks of the 
same host from different places: checks for "public" services are effectively 
checked from a remote location, while NRPE checks to the same host are done 
from within the same datacenter. The configs for each master & slave are 
generated from the same host/service database.

Apparently, send_gearman can be used as a send_nsca replacement, which I'll 
have to check up on later. It would be cool if it can send multi-line output 
and performance data. NSCA cannot do multi-line and doesn't seem 100% reliable 
either.

Thank you for your assistance!

Greetings,

Pascal

------------------------------------------------------------------------------
EditLive Enterprise is the world's most technically advanced content
authoring tool. Experience the power of Track Changes, Inline Image
Editing and ensure content is compliant with Accessibility Checking.
http://p.sf.net/sfu/ephox-dev2dev
_______________________________________________
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