Hi Kodiak, Yes, it's either ok to change it in the DB directly or sometimes it's not ok/possible if migrations introduced any other changes than additive ones. >From your traceback https://paste.fedoraproject.org/paste/wEIu5a3Tf8OejEzMNsXN9w, pulp migrated to 29, pulp_docker migrated to 6 and pulp_rpm was not able to migrate to 43.
It's not safe to downgrade for pulp_docker, the change in migration 6 was not additive. Do you have docker content (or this plugin is just installed)? If you don't have docker content (manifest lists specifically), this migration can be downgraded. For pulp_rpm it's semi-safe to downgrade, it depends if no content migrated or some migrated and then it errored. You can check it by looking at the /var/lib/pulp/content/units and see if there are modulemd and modulemd_defaults directories and if there is any content there. For pulp it's fine, changes were only additive. Let me know if you are still trying to downgrade (if you have mongo DB backup, it is safer to use it), Tanya On Mon, Apr 1, 2019 at 4:39 PM Kodiak Firesmith <[email protected]> wrote: > Hi Pulp-List, > Due to my last email about the 2.18.1 migration traceback, I attempted to > get back in business by downgrading to the 2.16.3 package set, which went > fine after I found all of the packages and put them into a local file:/// > repo, but after downgrading, pulp wouldn't start due to an internal server > error, with a recommendation that I re-run pulp-manage-db (as apache), > which I attempted to do, but it appears that even if the migration to a > later version fails, you can't migrate your way back ("the database for > migration package pulp.server.db.migrations is at version 29, which is > larger than the latest version available, 28"). > > So I guess my question is, when you encounter a showstopper during the > last failed upgrade, and roll back to a prior version, are you into > database recovery territory? And if so, is there guidance for such a task, > as I'm certainly no MongoDB guy. > > thanks! > - Kodiak > _______________________________________________ > Pulp-list mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/pulp-list
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