Hi! > > > > Unknown column 'user.name' in 'field list' > > > > in some operation when the DB is already upgraded to Mitaka, but some > > keystone instances in a HA setup are still Liberty. > > Currently we don't support rolling upgrades in keystone. To do an upgrade, > you need to upgrade all keystone service instances at once, instead of going > one-by-one, which means you have to plan for downtime of the keystone > API. >
Thanks, then I'll try to minimize the upgrade window as small as possible for keystone. > > > > Is this change is intentional? Should I ignore the problem and just > > upgrade all instances as fast as possible? Or I just overlooked something? > > > > You are right that there will be an error if you try running Liberty+Mitaka, > since the database schema is not compatible. We have an ongoing effort to > support online schema migrations, but it didn't make into Mitaka. [1] [2] > > We will have a presentation about Online DB Migrations at the summit (in the > upstream development track), so if you are interested, you can attend or > watch the recorded session afterwards [3]. There will also be a discussion > about this in keystone meetings at the design summit. [4] Great, hope the next version(s) will handle rolling upgrades. Br, György > > [1] https://specs.openstack.org/openstack/keystone- > specs/specs/mitaka/online-schema-migration.html > [2] https://review.openstack.org/#/c/274079/ > [3] https://www.openstack.org/summit/austin-2016/summit- > schedule/events/7639 > [4] https://etherpad.openstack.org/p/keystone-newton-summit-brainstorm > > > __________________________________________________________ > ________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: OpenStack-dev- > [email protected]?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: [email protected]?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
