Re: [openstack-dev] [neutron][upgrades] Potential issues when performing Neutron upgrades

2015-07-13 Thread Russell Bryant
On 07/13/2015 04:09 AM, Kevin Benton wrote: because you won't have to run Neutron agents on compute nodes anymore. How will upgrades work for OVN? We haven't written anything down yet, but here's what I expect. Right now we're still changing the db schema however is needed without messing

Re: [openstack-dev] [neutron][upgrades] Potential issues when performing Neutron upgrades

2015-07-13 Thread Kevin Benton
Thanks for the info. So the equivalent in neutron would be if we just ensure backward compatible AMQP APIs, right? On Mon, Jul 13, 2015 at 7:33 AM, Russell Bryant rbry...@redhat.com wrote: On 07/13/2015 04:09 AM, Kevin Benton wrote: because you won't have to run Neutron agents on compute nodes

Re: [openstack-dev] [neutron][upgrades] Potential issues when performing Neutron upgrades

2015-07-13 Thread Russell Bryant
On 07/13/2015 05:08 PM, Kevin Benton wrote: Thanks for the info. So the equivalent in neutron would be if we just ensure backward compatible AMQP APIs, right? There's a few parts: 1) Backwards compatibility with changes to the oslo.messaging APIs using API versioning (what you're referring to,

Re: [openstack-dev] [neutron][upgrades] Potential issues when performing Neutron upgrades

2015-07-13 Thread Salvatore Orlando
Some pedant comments inline. Salvatore On 13 July 2015 at 23:29, Russell Bryant rbry...@redhat.com wrote: On 07/13/2015 05:08 PM, Kevin Benton wrote: Thanks for the info. So the equivalent in neutron would be if we just ensure backward compatible AMQP APIs, right? There's a few parts:

Re: [openstack-dev] [neutron][upgrades] Potential issues when performing Neutron upgrades

2015-07-13 Thread Kevin Benton
because you won't have to run Neutron agents on compute nodes anymore. How will upgrades work for OVN? On Thu, Jul 9, 2015 at 2:30 PM, Russell Bryant rbry...@redhat.com wrote: On 07/09/2015 10:11 AM, Ihar Hrachyshka wrote: On 07/09/2015 09:01 AM, Artur Korzen wrote: Hi all, I've been

Re: [openstack-dev] [neutron][upgrades] Potential issues when performing Neutron upgrades

2015-07-09 Thread Artur Korzen
Thanks Ihar comments! Is Neutron ready to be upgradable with minimal downtime of services and no VM access downtime? As the ovs bug you refer to above, no, at least not in reference implementation. That's for data plane. My understanding is that after the ovs neutron agent will be

Re: [openstack-dev] [neutron][upgrades] Potential issues when performing Neutron upgrades

2015-07-09 Thread Russell Bryant
On 07/09/2015 10:11 AM, Ihar Hrachyshka wrote: On 07/09/2015 09:01 AM, Artur Korzen wrote: Hi all, I've been researching the Neutron project as a part of work on Openstack rolling upgrades, my primary assignments included testing if there is no VM access downtime when performing upgrade.