Forgot to add tags, sorry On 06/09/2014 04:18 PM, Jakub Libosvar wrote: > Hi all, > > I'd like to get some opinions on following idea: > > Because currently we have (thanks to Ann) WIP of healing script capable > of changing database scheme by comparing tables in the database to > models in current codebase, I started to think whether it could be used > generally to db upgrades instead of "generating" migration scripts. > > If I understand correctly the purpose of migration scripts used to be to: > 1) separate changes according plugins > 2) upgrade database scheme > 3) migrate data according the changed scheme > > Since we dropped on conditional migrations, we can cross out no.1). > The healing script is capable of doing no.2) without any manual effort > and without adding migration script. > > That means if we will decide to go along with using script for updating > database scheme, migration scripts will be needed only for data > migration (no.3)) which are from my experience rare. > > Also other benefit would be that we won't need to store all database > models from Icehouse release which we probably will need in case we want > to "heal" database in order to achieve idempotent Icehouse database > scheme with Juno codebase. > > Please share your ideas and reveal potential glitches in the proposal. > > Thank you, > Kuba > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >
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