Open Stack

Thanks, Matt -- this is very helpful.
What about storage?  It seems like Ceph as the storage back-end provides much better data protectionthan the alternatives.  Did you sense a movement towards adapting Ceph or are people clinging to LVM,etc?  

 
      From: Matt Kassawara <mkassawara at gmail.com>
 To: "openstack-docs at lists.openstack.org" <openstack-docs at lists.openstack.org> 
 Sent: Thursday, March 12, 2015 1:44 PM
 Subject: [OpenStack-docs] [ha-guide] Observations from mid-cycle ops meetup
   
I went to the mid-cycle ops meeting for a better idea of the HA methods implemented by operators. Most seem to agree on Galera with MariaDB/MySQL, RabbitMQ active-passive/active-active (some using a load balancer and others configuring services to use each node directly), Memcached active/active (via Oslo hash synchronization), and OpenStack APIs via hardware or HAProxy load balancer. On the other hand, networking drifted all over the place. Some people live and die by nova-net and won't move to neutron until it 100% mirrors the multi-host functionality with fixed/floating IP addresses, others use neutron but only with provider networks, most don't quite trust DVR/L3HA yet, and a few implement custom code with nova-net or neutron. For networking in the HA guide, I mostly suggest referencing the networking guide scenarios rather than suggesting a particular architecture. However, we should also mention them in the introduction somewhere because different architectures may impact the minimum number and type of nodes.
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