[openstack-dev] [savanna] Undoing a change in the alembic migrations

Sergey Lukjanov slukjanov at mirantis.com
Wed Feb 5 12:05:39 UTC 2014


Just to clarify, new migration scripts should be added. You can find
details on how to do it here -
https://github.com/openstack/savanna/blob/master/savanna/db/migration/alembic_migrations/README


On Thu, Jan 30, 2014 at 8:16 AM, Alexander Ignatov <aignatov at mirantis.com>wrote:

> Yes, you need create new migration script. Btw, we already have started
> doing this.
> The first example was when Jon added 'neutron' param to the
> 'job_execution' object:
>
> https://review.openstack.org/#/c/63517/17/savanna/db/migration/alembic_migrations/versions/002_add_job_exec_extra.py
>
> Regards,
> Alexander Ignatov
>
>
>
> On 30 Jan 2014, at 02:25, Andrew Lazarev <alazarev at mirantis.com> wrote:
>
> +1 on new migration script. Just to be consecutive.
>
> Andrew.
>
>
> On Wed, Jan 29, 2014 at 2:17 PM, Trevor McKay <tmckay at redhat.com> wrote:
>
>> Hi Sergey,
>>
>>   In https://review.openstack.org/#/c/69982/1 we are moving the
>> 'main_class' and 'java_opts' fields for a job execution into the
>> job_configs['configs'] dictionary.  This means that 'main_class' and
>> 'java_opts' don't need to be in the database anymore.
>>
>>   These fields were just added in the initial version of the migration
>> scripts.  The README says that migrations work "from icehouse". Since
>> this is the initial script, does that mean we can just remove references
>> to those fields from the db models and the script, or do we need a new
>> migration script (002) to erase them?
>>
>> Thanks,
>>
>> Trevor
>>
>>
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-- 
Sincerely yours,
Sergey Lukjanov
Savanna Technical Lead
Mirantis Inc.
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