neutron

History

Rodolfo Alonso Hernandez 397eb2a2fe Serialize subnet creating depending on the network ID Add a new DB table "network_subnet_lock". The primary key will be the network_id. When a subnet is created, inside the write context during the "subnet" object creation, a register in the mentioned table is created or updated. This will enforce the serialization of the "subnet" registers belonging to the same network, due to the write lock in the DB. This will solve the problem of attending several "subnet" creation requests, described in the related bug. If several subnets with the same CIDR are processed in parallel, the implemented logic won't reject them because any of them will not contain the information of each other. This DB lock will also work in case of distributed servers because the lock is not enforced in the server logic but in the DB backend. Change-Id: Iecbb096e0b7e080a3e0299ea340f8b03e87ddfd2 Closes-Bug: #1852777		2019-12-02 17:19:03 +00:00
..
alembic_migrations	Serialize subnet creating depending on the network ID	2019-12-02 17:19:03 +00:00
models	Merge "Relocate Agent DB model"	2016-10-10 16:33:55 +00:00
README	Update the documentation link for doc migration	2017-07-22 18:46:13 +09:00
__init__.py	Open Ussuri DB branch	2019-08-15 16:30:52 -04:00
alembic.ini	Ease debugging alembic by passing proper scripts path in alembic.ini	2015-06-22 15:44:55 +02:00
autogen.py	Fix flake8 N534 untranslated exception message	2018-10-19 15:46:04 -04:00
cli.py	Open Ussuri DB branch	2019-08-15 16:30:52 -04:00
connection.py	neutron-db-manage: add has_offline_migrations command	2016-01-22 13:55:40 +00:00

README

See doc/source/contributor/alembic_migrations.rst

Rendered at
https://docs.openstack.org/neutron/latest/contributor/alembic_migrations.html