[openstack-dev] [Cinder] A possible solution for HA Active-Active

Morgan Fainberg morgan.fainberg at gmail.com
Mon Aug 3 09:01:45 UTC 2015


Lets step back away from tooz. Tooz for the sake of this conversation is as much the same as saying zookeeper or consul or etcd, etc. We should be focused (as both Flavio and Thierry said) on if we need DLM and what it will solve.

Once we have all of that defined, the use of an abstraction such as tooz (or just the direct bindings for some specific choice) can be made. 

I want to voice that we should be very picky about the solution (if we decide on a DLM) so that we are implementing to the strengths of the solution rather than try and make everything work seamlessly.  

--Morgan

Sent via mobile

>> On Aug 3, 2015, at 18:49, Julien Danjou <julien at danjou.info> wrote:
>> 
>> On Mon, Aug 03 2015, Thierry Carrez wrote:
>> 
>> The last thing we want is to rush a solution that would only solve a
>> particular project use case. Personally I'd like us to pick the simplest
>> solution that can solve most of the use cases. Each of the solutions
>> bring something to the table -- Zookeeper is mature, Consul is
>> featureful, etcd is lean and simple... Let's not dive into the best
>> solution but clearly define the problem space first.
> 
> Or just start using Tooz – like some of OpenStack are already doing for
> months – and let the operators pick the backend that they are the most
> comfortable with? :)
> 
> -- 
> Julien Danjou
> -- Free Software hacker
> -- http://julien.danjou.info
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