[one-users] HA vs LB for OpenNebula controller

[Steven Timm]

We are currently running OpenNebula 3.2 with external multi-master
mysql database, and heartbeat failover between the two controllers.
I believe there are some state issues  to making them both active
via LVS or similar.
Also, even in heartbeat(active-passive), if the system fails over in the 
middle of a onevm start, that operation won't be retried.

Steve


On Sat, 13 Oct 2012, Alberto Zuin - Liste wrote:

> I know OpenNebula server isn't an essential piece for the cloud life: in
> case of failure of OpenNebula server the VM still up and running.
> But now I'm the situation of making some tests setup for OpenNebula
> Colud Controller in HA, just to research.
> I already tested a setup of 2 cloud controllers in HA with HeartBeat
> without any problems, but I want to try a step over: do you known if
> it's possible to configure 2 active nodes with OpenNebula? Obviously
> using a MySQL datastore instead of SQLite to permit multiple concurrent
> access.
> Thanks,
> Alberto Zuin
>
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------------------------------------------------------------------
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.