cf69c5b4c3
This patch addresses the issue by removing the extra nesting (which is effectively redundant). The longer story about this patch is the following: Race conditions may cause DBDuplicateEntry exceptions that require a transaction to be rollbacked back, and yet make the whole operation succeed. A classic example is what has been solved in commit fbc6b99. If the rollback is done in a nested transaction, the above mentioned exception is raised. To address the problem, we could use savepoints by means of sqlalchemy's begin_nested(); Even though this approach is preferable, it causes quite a bit of changes in the unit tests (because of sqlite); it may also require that certain DBMS, or certain DB backend configurations, support savepoints. In the end, the simpler approach was chosen. Closes-bug: #1354072 Change-Id: Ic9393319e55f71d681124bd3052e939724ebab6b
# -- Welcome!
You have come across a cloud computing network fabric controller. It has identified itself as "Neutron." It aims to tame your (cloud) networking!
# -- External Resources:
The homepage for Neutron is: http://launchpad.net/neutron. Use this site for asking for help, and filing bugs. Code is available on git.openstack.org at <http://git.openstack.org/cgit/openstack/neutron>.
The latest and most in-depth documentation on how to use Neutron is available at: <http://docs.openstack.org>. This includes:
Neutron Administrator Guide http://docs.openstack.org/trunk/openstack-network/admin/content/
Neutron API Reference: http://docs.openstack.org/api/openstack-network/2.0/content/
The start of some developer documentation is available at: http://wiki.openstack.org/NeutronDevelopment
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