openstack/nova
Code Issues Proposed changes

Deprecate db_driver config option

Browse Source 
Previously this let you replace our SQLAlchemy database layer with
your own. This approach is deprecated. Deployments that felt the need
to use the facility are encourage to work with upstream Nova to
address db driver concerns in the main SQLAlchemy code paths.

Change-Id: If195a6bc399c8b1e2bfb0ea5579f2be21d0bc126
This commit is contained in:
Sean Dague 2016-03-03 14:57:14 -05:00
parent 0fcec69a23
commit c87ae92be5
2 changed files with 18 additions and 3 deletions
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13
nova/db/base.py
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@ -19,9 +19,16 @@
from oslo_config import cfg
from oslo_utils import importutils
db_driver_opt = cfg.StrOpt('db_driver',
default='nova.db',
help='The driver to use for database access')
# NOTE(sdague): we know of at least 1 instance of out of tree usage
# for this config in RAX. They used this because of performance issues
# with some queries. We think the right path forward is fixing the
# SQLA queries to be more performant for everyone.
db_driver_opt = cfg.StrOpt(
'db_driver',
default='nova.db',
help='DEPRECATED: The driver to use for database access',
deprecated_for_removal=True)
CONF = cfg.CONF
CONF.register_opt(db_driver_opt)

8
releasenotes/notes/deprecate_db_driver-91c76ca8011d663c.yaml Normal file
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@ -0,0 +1,8 @@
---
deprecations:
- Deprecate the ``db_driver`` config option. Previously this let you
replace our SQLAlchemy database layer with your own. This approach
is deprecated. Deployments that felt the need to use the facility
are encourage to work with upstream Nova to address db driver
concerns in the main SQLAlchemy code paths.