Comment 5 for bug 1550886

Reviewed: https://review.openstack.org/257059
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=9c3c19f07ce52e139d431aec54341c38a183f0b7
Submitter: Jenkins
Branch: master

commit 9c3c19f07ce52e139d431aec54341c38a183f0b7
Author: Kevin Benton <email address hidden>
Date: Thu Feb 18 03:48:29 2016 -0800

    Add ALLOCATING state to routers

    This patch adds a new ALLOCATING status to routers
    to indicate that the routers are still being built on the
    Neutron server. Any routers in this state are excluded in
    router retrievals by the L3 agent since they are not yet
    ready to be wired up.

    This is necessary when a router is made up of several
    distinct Neutron resources that cannot all be put
    into a single transaction. This patch applies this new
    state to HA routers while their internal HA ports and
    networks are being created/deleted so the L3 HA agent
    will never retrieve a partially formed HA router. It's
    important to note that the ALLOCATING status carries over
    until after the scheduling is done, which ensures that
    routers that weren't fully scheduled will not be sent to
    the agents.

    An HA router is placed in this state only when it is being
    created or converted to/from the HA state since this is
    disruptive to the dataplane.

    This patch also reverts the changes introduced in
    Iadb5a69d4cbc2515fb112867c525676cadea002b since they will
    be handled by the ALLOCATING logic instead.

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

    APIImpact
    Closes-Bug: #1550886
    Related-bug: #1499647
    Change-Id: I22ff5a5a74527366da8f82982232d4e70e455570