[one-users] ONE server redundancy

[Steven Timm]

Tino--are you saying that there is state information in the oned
that is not on disk at any given time?
We were thinking of setting up an active-passive failover
of our oned via heartbeat and DRBD. Is there any reason
why that might not work?

Steve Timm


On Wed, 16 Feb 2011, Tino Vazquez wrote:

> Hi Luis,
>
> That setup is not easily achievable. Operations are not transactional,
> and also ONE keeps a cache, so the information of multiple  ONEs won't
> be in sync.
>
> It can be achieved, but not out of the box, a fair amount of fiddling
> is involved.
>
> Regards,
>
> -Tino
>
> --
> Constantino Vázquez Blanco, MSc
> OpenNebula Major Contributor  / Cloud Researcher
> www.OpenNebula.org | @tinova79
>
>
>
> On Mon, Jan 31, 2011 at 6:15 PM, Luis M. Carril <lmcarril at cesga.es> wrote:
>> Hello,
>>    We have an OpenNebula installation and we wanted to deploy another ONE
>> server for redundacy monitoring the same hosts and MVs. Could this be
>> achieved if both ONE installations use the same mysql database? Are all the
>> operations transactional?
>>
>> Cheers
>>
>> --
>> Luis M. Carril
>> Project Technician
>> Galicia Supercomputing Center (CESGA)
>> Avda. de Vigo s/n
>> 15706 Santiago de Compostela
>> SPAIN
>>
>> Tel: 34-981569810 ext 249
>> lmcarril at cesga.es
>> www.cesga.es
>>
>>
>> ==================================================================
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opennebula.org
>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>

-- 
------------------------------------------------------------------
Steven C. Timm, Ph.D  (630) 840-8525
timm at fnal.gov  http://home.fnal.gov/~timm/
Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Group Leader.
Lead of FermiCloud project.