openstack/neutron
Code Issues Proposed changes

Refactor the OVN revision module to access the DB correctly

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Method ``_ensure_revision_row_exist`` creates a DB reader context
when called from ``bump_revision``. This call is always done from
inside a DB write context. This method removes the unneded reader
context.

Closes-Bug: #1975837
Change-Id: Ifb500eef5513e930bf3a22d99183ca348e5fc427
This commit is contained in:
Rodolfo Alonso Hernandez
2022-05-15 01:28:32 +00:00
parent 7fc509aa9a
commit 39d751a332
1 changed files with 12 additions and 11 deletions
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23
neutron/db/ovn_revision_numbers_db.py
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@@ -136,17 +136,18 @@ def _ensure_revision_row_exist(context, resource, resource_type, std_attr_id):
# deal with objects that already existed before the sync work. I believe
# that we can remove this method after few development cycles. Or,
# if we decide to make a migration script as well.
with db_api.CONTEXT_READER.using(context):
if not context.session.query(ovn_models.OVNRevisionNumbers).filter_by(
resource_uuid=resource['id'],
resource_type=resource_type).one_or_none():
LOG.warning(
'No revision row found for %(res_uuid)s (type: '
'%(res_type)s) when bumping the revision number. '
'Creating one.', {'res_uuid': resource['id'],
'res_type': resource_type})
create_initial_revision(context, resource['id'], resource_type,
std_attr_id=std_attr_id)
if context.session.query(ovn_models.OVNRevisionNumbers).filter_by(
resource_uuid=resource['id'],
resource_type=resource_type).one_or_none():
return
LOG.warning(
'No revision row found for %(res_uuid)s (type: '
'%(res_type)s) when bumping the revision number. '
'Creating one.', {'res_uuid': resource['id'],
'res_type': resource_type})
create_initial_revision(context, resource['id'], resource_type,
std_attr_id=std_attr_id)
@db_api.retry_if_session_inactive()