Any more thoughts about this subject? Ask? Vish?
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------------------------------------------------------------------------
*From:* Alexis Richardson [mailto:alexis@xxxxxxxxxxxx]
*To:* Major Hayden [mailto:major.hayden@xxxxxxxxxxxxx]
*Cc:* i3D.net - Tristan van Bokkem [mailto:tristanvanbokkem@xxxxxx],
<openstack@xxxxxxxxxxxxxxxxxxx>
[mailto:openstack@xxxxxxxxxxxxxxxxxxx], Ask Solem
[mailto:ask@xxxxxxxxxxxx]
*Sent:* Tue, 14 Feb 2012 14:47:13 +0100
*Subject:* Re: [Openstack] Howto Nova setup with HA?
Major,
The current set-up of HA in Openstack is borked in several ways.
Ask Solem, cc'd, is going to write up a note helping people to do it
properly.
alexis
On Tue, Feb 14, 2012 at 1:34 PM, Major Hayden
<major.hayden@xxxxxxxxxxxxx <mailto:major.hayden@xxxxxxxxxxxxx>> wrote:
> On Feb 14, 2012, at 2:07 AM, i3D.net - Tristan van Bokkem wrote:
>
>> So, we can run MySQL in master-master mode on multiple hosts, we
can run nova-api on serveral hosts and load balance those and
RabbitMQ has a cluster ha setup as well but is this the way to go? I
can't find a clear answer to this. I am hoping one can shine some
light on this!
>
> If you want to make things a little simpler, an active/passive
MySQL setup with pacemaker, corosync, and DRBD will work quite well.
ClusterLabs has a pretty decent howto on their site:
>
> http://www.clusterlabs.org/wiki/DRBD_MySQL_HowTo
>
> As for RabbitMQ clustering, I worked with it for several days and
had quite a few problems with data consistency and availability. We
eventually settled on the "legacy" H/A method for RabbitMQ using
pacemaker and DRBD. There's a pretty good walkthrough on RabbitMQ's
site:
>
> http://www.rabbitmq.com/pacemaker.html
>
> --
> Major Hayden
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