I'm not seeing a path to migrate 1,000s of production VMs from nova network to Neutron.
Can someone describe how this can be done without downtime for the VMs ? Can we build an approach for the cases below in a single OpenStack production cloud: 1. Existing VMs to carry on running without downtime (and no new features) 2. Existing VMs to choose a window for reconfiguration for Neutron (to get the new function) 3. New VMs to take advantage of Neutron features such as LBaaS - Tim > -----Original Message----- > From: Russell Bryant [mailto:[email protected]] > Sent: 29 January 2014 19:04 > To: Daniel P. Berrange > Cc: OpenStack Development Mailing List (not for usage questions) > Subject: Re: [openstack-dev] [Nova][Neutron] nova-network in Icehouse and > beyond > > On 01/29/2014 12:45 PM, Daniel P. Berrange wrote: > > I was thinking of an upgrade path more akin to what users got when we > > removed the nova volume driver, in favour of cinder. > > > > https://wiki.openstack.org/wiki/MigrateToCinder > > > > ie no guest visible downtime / interuption of service, nor running of > > multiple Nova instances in parallel. > > Yeah, I'd love to see something like that. I would really like to see more > effort in this area. I honestly haven't been thinking about it > much in a while personally, because the rest of the "make it work" gaps have > still been a work in progress. > > There's a bit of a bigger set of questions here, too ... > > Should nova-network *ever* go away? Or will there always just be a choice > between the basic/legacy nova-network option, and the > new fancy SDN-enabling Neutron option? Is the Neutron team's time better > spent on OpenDaylight integration than the existing > open source plugins? > > Depending on the answers to those questions, the non-visible no-downtime > migration path may be a less important issue. > > -- > Russell Bryant > > _______________________________________________ > OpenStack-dev mailing list > [email protected] > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev _______________________________________________ OpenStack-dev mailing list [email protected] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
