[Openstack] Openstack High Availability

Eugene Kirpichov ekirpichov at gmail.com
Mon Dec 17 20:28:12 UTC 2012


Hi,

I suggest you to read a series of our blogposts on H/A in openstack (in
this order):
http://www.mirantis.com/blog/intro-to-openstack-in-production/
http://www.mirantis.com/blog/ha-platform-components-mysql-rabbitmq/
http://www.mirantis.com/blog/software-high-availability-load-balancing-openstack-cloud-api-servic/
http://www.mirantis.com/blog/117072/

Sorry for the shameless promotion but I actually think it's relevant :)


On Mon, Dec 17, 2012 at 12:11 PM, Samuel Winchenbach <swinchen at gmail.com>wrote:

> Hi All,
>
>
> I am following the high availability guide provided by openstack as seen
> here: http://docs.openstack.org/trunk/openstack-ha/content/ch-intro.html
>
> I currently have mysql and rabbitmq setup with pacemaker and corosync.
>  Everything seems to be working fine.
>
> I am now adding in the openstack services.  I have keystone configured and
> it is using haproxy for load balancing/redundancy and keepalived for the
> virtual IP.  haproxy is set configured to bind to non-local address and is
> running on all HA nodes.
>
> Is this a good way to make the openstack services such as glance, swift,
> nova and keystone HA?
>
> Is it preferable to have keepalived start haproxy on the node that it
> assigns the virtual IP to, or is my setup with the non-local binding ok?
>
> Is this (
> http://docs.openstack.org/folsom/openstack-network/admin/content/ha_pacemaker.html)
> the preferred to make the networking (quantum) HA?
>
>
> and one last question:
>
> What is a good method to detect a compute node failure and automatically
> restart the virutal machines it was running on another node?
>
> Thank you so much, and sorry to bombard you with questions!
>
> Sam
>
>
>
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-- 
Eugene Kirpichov
http://www.linkedin.com/in/eugenekirpichov
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