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[Mohammed Naser <1755890@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

When using OpenDaylight with Open vSwitch, the Neutron Open vSwitch
agent does not exist in the environment anymore.

When an instance is started up for the first time, OpenDaylight will
successfully bind the port and send the vif plugged notification.
However, since the introduction of the following patch:

https://review.openstack.org/#/q/Ib08afad3822f2ca95cfeea18d7f4fc4cb407b4d6

It now expects the vif plugged event to happen on hard reboots, which
for certain environments (such as using ODL with OVS, it will not come
in).  This results in all instance starts after the first one failing.

Discussion:
http://eavesdrop.openstack.org/irclogs/%23openstack-nova/%23openstack-nova.2018-03-14.log.html#t2018-03-14T18:12:48

ODL issue:
https://jira.opendaylight.org/projects/NETVIRT/issues/NETVIRT-512

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1755890

Title:
  Instances fail to hard reboot when using OpenDaylight

Status in OpenStack Compute (nova):
  New

Bug description:
  When using OpenDaylight with Open vSwitch, the Neutron Open vSwitch
  agent does not exist in the environment anymore.

  When an instance is started up for the first time, OpenDaylight will
  successfully bind the port and send the vif plugged notification.
  However, since the introduction of the following patch:

  https://review.openstack.org/#/q/Ib08afad3822f2ca95cfeea18d7f4fc4cb407b4d6

  It now expects the vif plugged event to happen on hard reboots, which
  for certain environments (such as using ODL with OVS, it will not come
  in).  This results in all instance starts after the first one failing.

  Discussion:
  http://eavesdrop.openstack.org/irclogs/%23openstack-nova/%23openstack-nova.2018-03-14.log.html#t2018-03-14T18:12:48

  ODL issue:
  https://jira.opendaylight.org/projects/NETVIRT/issues/NETVIRT-512

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