Graceful ovs-agent restart

[OpenStack Infra]

https://review.openstack.org/182920
commit 73673beacd75a2d9f51f15b284f1b458d32e992e
Author: Eugene Nikanorov <email address hidden>
Date: Mon May 11 03:10:29 2015 +0400

    Graceful ovs-agent restart

    When agent is restarted it drops all existing flows. This
    breaks all networking until the flows are re-created.

    This change adds an ability to drop only old flows.
    Agent_uuid_stamp is added for agents. This agent_uuid_stamp is set as
    cookie for flows and then flows with stale cookies are deleted during
    cleanup.

    Co-Authored-By: Ann Kamyshnikova<email address hidden>

    Closes-bug: #1383674

    DocImpact

    Change-Id: I95070d8218859d4fff1d572c1792cdf6019dd7ea

[Joseph Robinson (joseph-r-email)]

Affects http://docs.openstack.org/kilo/install-guide/install/apt/content/neutron-compute-node.html

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/220922

[OpenStack Infra (hudson-openstack)]

Change abandoned by Matthew Kassawara (<email address hidden>) on branch: master
Review: https://review.openstack.org/220922
Reason: No updates in a long time. Abandoning patch and resetting bug.

[Matt Kassawara (ionosphere80)]

Probably needs a note in relevant sections of the networking guide.

[venkatamahesh (venkatamaheshkotha)]

Already changed in table : https://github.com/openstack/openstack-manuals/blob/master/doc/config-reference/source/tables/neutron-openvswitch_agent.rst