Error ' Will not send event port_delete_end for network xxx'

[Eugene Nikanorov]

MOS 7.0
This happens from time to time during rally tests.
It's known that agents are alive during the tests, so this is most probably a flaw in code logic.

[Sergey Belous (sbelous)]

Patch on review in upstream: https://review.openstack.org/#/c/253032/

[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: openstack-ci/fuel-8.0/liberty
Change author: Elena Ezhova <email address hidden>
Review: https://review.fuel-infra.org/15476

[Fuel Devops McRobotson (fuel-devops-robot)]

Reviewed: https://review.fuel-infra.org/15476
Submitter: Pkgs Jenkins <email address hidden>
Branch: openstack-ci/fuel-8.0/liberty

Commit: dccd1c5c11c9c533a4f8c90d8b834446eab549a5
Author: Elena Ezhova <email address hidden>
Date: Wed Dec 23 11:43:06 2015

Merge the tip of origin/stable/liberty into origin/openstack-ci/fuel-8.0/liberty

ff021e7 Catch known exceptions during deleting last HA router
e89141e move usage_audit to cmd/eventlet package
fc034fc Make port binding message on dead agents clear
7839f76 Disallow updating SG rule direction in RESOURCE_ATTRIBUTE_MAP
2a0f860 Force service provider relationships to load
3a70a5b Kill the vrrp orphan process when (re)spawn keepalived
53c46fe Add check that list of agents is not empty in _get_enabled_agents
7c1fb08 Batch db segment retrieval
70e7d3e Ignore possible suffix in iproute commands.
5bbff07 Tune _get_candidates for faster scheduling in dvr
31f1847 Separate rbac calculation from _make_network_dict
a0747e6 Skip keepalived_respawns test
1a709b2 Validate local_ip for linuxbridge-agent
fb55693 Use diffs for iptables restore instead of all rules
b49181a DVR: only notify needed agents on new VM port creation
f8d1bf2 get_device_by_ip: don't fail if device was deleted
c996fda Adding security-groups unittests
91c17c0 Check missed IPSet utility using neutron-sanity-check
2d1eaf3 Remove duplicate deprecation messages for quota_items option

Conflicts:
 neutron/tests/functional/services/l3_router/test_l3_dvr_router_plugin.py

Closes-Bug: #1496719
Partial-Bug: #1496341
Change-Id: I2cea91e6d953035613175beae5409a47580795f1

[Kristina Berezovskaia (kkuznetsova)]

This issue was reproduced only on scale environment. So add tag scale for verification on scale labs

[Mikhail Chernik (mchernik)]

Verified is scale lab on env-10 (200 nodes) on MOS 8.0 ISO 482, fixed.

Instead of message in bug description there are now debug messages like 'Network 219c8545-6671-4e4c-89c2-302cec4cedc4 is not hosted by any dhcp agent'