LBaaS: PortNotFound error when deleting vip object

[Oleg Bondarev]

When deleting a vip object haproxy namespace driver tries to unplug vip port (quantum/plugins/services/agent_loadbalancer/drivers/haproxy/namespace_driver.py:86) while that port was already deleted by loadbalancer db plugin before sending a delete command to the agent (quantum/db/loadbalancer/loadbalancer_db.py:451). As a result PortNotFound error is raised . Also corresponding haproxy config dir is not deleted.

Steps to reproduce: create pool and vip objects using quantum client, then delete vip object. An error cab be seen in quantum server and loadbalancer agent logs.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/23371

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/23371
Committed: http://github.com/openstack/quantum/commit/71331cd2e609ed0d5ef6d277c7aeaa8a9d11ba32
Submitter: Jenkins
Branch: master

commit 71331cd2e609ed0d5ef6d277c7aeaa8a9d11ba32
Author: Gary Kotton <email address hidden>
Date: Sun Mar 3 14:47:31 2013 +0000

    Prevent exception with VIP deletion

    Fixes bug 1137697

    Change-Id: I6de55c674da1202eb9c1e2e11eda2e6de554750c