[Openstack] Howto Nova setup with HA?

Jay Pipes jaypipes at gmail.com
Thu Feb 16 12:11:36 UTC 2012


Yup, absolutely... we've been a bit slammed working on getting the 
project up and running, but everything is checked in to GitHub... just 
needs a bit of clean up, that's all.

Best,
-jay

On 02/16/2012 07:10 AM, Alexis Richardson wrote:
> It would be great to see the cookbooks if they are available, since
> others doing that setups might want such a thing.
>
>
>
> On Thu, Feb 16, 2012 at 11:51 AM, Jay Pipes<jaypipes at gmail.com>  wrote:
>> FWIW, we're using DRBD + pacemaker in active/passive setups for both the
>> MySQL and RabbitMQ setup in the trystack.org (the artist formerly known as
>> FreeCloud) project, and it's working quite well and is pretty simple to set
>> up. Nati Ueno could give some more details on the setup and the Chef
>> cookbooks used...
>>
>> Best,
>> -jay
>>
>> On 02/16/2012 03:46 AM, i3D.net - Tristan van Bokkem wrote:
>>>
>>> Any more thoughts about this subject? Ask? Vish?
>>>
>>> Best regards,
>>>
>>> Tristan van Bokkem
>>> Datacenter Operations
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>>>   ------------------------------------------------------------------------
>>>     *From:* Alexis Richardson [mailto:alexis at rabbitmq.com]
>>>     *To:* Major Hayden [mailto:major.hayden at rackspace.com]
>>>     *Cc:* i3D.net - Tristan van Bokkem [mailto:tristanvanbokkem at i3d.nl],
>>>     <openstack at lists.launchpad.net>
>>>     [mailto:openstack at lists.launchpad.net], Ask Solem
>>>     [mailto:ask at rabbitmq.com]
>>>     *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 at rackspace.com<mailto:major.hayden at rackspace.com>>  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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>>
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