** Changed in: neutron
Status: Fix Committed => Fix Released
** Changed in: neutron
Milestone: None => kilo-3
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https://bugs.launchpad.net/bugs/1402698
Title:
Deleting an HA router with interfaces attached leaves the DB in an
inconsistent state
Status in OpenStack Neutron (virtual network service):
Fix Released
Bug description:
Steps to reproduce:
Create HA router (Observe that HA ports were created)
Attach an interface
Delete router
Result:
The deletion fails because the router has an interface attached, however all
of its HA ports were deleted, leaving the system in an inconsistent state. Any
L3 agents that attempt to configure this HA router will fail because it doesn't
have HA ports.
Expected behavior:
Deletion validations should occur before deleting any resources. The deletion
should fail and the router should continue to exist properly, with HA ports and
all.
Reason:
As per
https://github.com/openstack/neutron/blob/master/neutron/db/l3_hamode_db.py#L411:
When deleting a router, the call first reaches the L3 HA DB mixin,
which deletes HA-specific resources first, in its own commit. It then
calls to the super class, which will eventually try to delete the
router object itself. If any deletion validation fails, the router
object itself is not deleted, but the HA ports and their VRID
allocations were already deleted and the transaction was commited.
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