Nagios Cluster with Load Balancing and High Availability
Andreas Ericsson
ae at op5.se
Mon Aug 29 11:12:41 CEST 2011
On 08/26/2011 11:05 AM, Aravind M D wrote:
> Hi
>
> I need to configure two physical servers as active-active cluster and
> configure Loadbalancing with High availabiltiy for Nagios.
>
> Can somebody help me how to achieve this.
>
> I have checked some of loadbalancing modules like mod_gearmen, merlin and
> DNX. If any one knows about the difference between these modules please let
> me know.
>
If you want loadbalancing with takeover capabilities, Merlin is your only
choice. The other two rely on a single Nagios instance to do scheduling and
notifications. If that instance crashes, mod_gearman and DNX can't help you
get any info at all.
It might be possible to couple them so that mod_gearman and Merlin work
together, but you'd be entering unknown territory with that mix and I would
be quite surprised if it worked completely without problems the first time
you try it.
--
Andreas Ericsson andreas.ericsson at op5.se
OP5 AB www.op5.se
Tel: +46 8-230225 Fax: +46 8-230231
Considering the successes of the wars on alcohol, poverty, drugs and
terror, I think we should give some serious thought to declaring war
on peace.
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