[openstack-dev] blueprint proposal nova-compute fencing for HA ?

Leen Besselink ubuntu at consolejunkie.net
Tue Apr 23 10:32:11 UTC 2013

On Tue, Apr 23, 2013 at 01:04:57PM +0300, Alex Glikson wrote:
> Pacemaker (and the underlying heartbeat mechanism) is a very good tool, 
> but to the best of my knowledge it is not very scalable. Therefore, it is 
> a great fit to implement HA of things like mysql, between small number of 
> 'controller' nodes. But when it comes to cloud-scale heartbeat/membership, 
> there are better tools -- such as ZooKeeper (which is one of the backend 
> implementations of the service heartbeat mechanism within Nova). 

I had seen that Piston Cloud uses ZooKeeper too for their solution.

It's new in Grizzly, so that is why I didn't know it was part of standard OpenStack.

Thank you for that suggestion.

But in that case we get back to my original request:

Should OpenStack have a fencing framework ?

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