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On 08/20/15 at 05:01pm, melanie witt wrote:
>Hi Everyone,
>
>I attended the ops mid cycle summit on Tuesday and Wednesday and here are brief notes on the feedback I heard related to nova. Please feel free to add your comments or correct me if I got anything wrong.
>
>
>Large Deployments Session [1]:
>
>- There's a Neutron spec [2] for adding the capability to model an L3 network which is composed of L2 networks that are routed together, and this project will require cooperation from the nova side
>- Cells v2 not coming along as quickly as expected. Cells v1 issues around compat between versions, understood it's not supported but it's been a problem
>- Hierarchical multi-tenancy isn't yet supported (quotas)
>
>
>Upgrades Session Report:
>- Good linking of features to documentation is important
>- Inter-service changes are important to call out
>- Flavor migration is an example of something done well
>
>
>Other general notes:
>- Event capture is a choice between two bad options
>- Information divided between events and logs. Have to capture both or you lose the whole picture
>- Hard to trace RPC calls
>- Race conditions with scheduling and quotas
>- The state of Nova and NUMA is not understood
>- Glance v2 is not being used. From what I understand, we can't move to it because images created by v1 can't be read by v2, for example?

There was a bug around that, though I don't know the details.  Another 
issue is that v2 doesn't support changes-since which means we can't drop 
it behind the Nova API and maintain backwards compatibility.

>
>
>All of the etherpads from the event are linked here: https://etherpad.openstack.org/p/PAO-ops-meetup
>
>
>Thanks,
>-melanie (irc: melwitt)
>
>
>[1] https://etherpad.openstack.org/p/PAO-ops-large-deployments
>[2] https://review.openstack.org/#/c/196812/
>



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