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[Andre Ruiz <andre.ruiz@xxxxxxxxx>]

** Changed in: nova
       Status: Incomplete => Invalid

** Changed in: charm-neutron-openvswitch
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1836105

Title:
  Instance does not start - Error during following call to agent: ovs-
  vsctl

Status in OpenStack neutron-openvswitch charm:
  Invalid
Status in OpenStack Compute (nova):
  Invalid

Bug description:
  This is Openstack Queens on Bionic. The main difference from templates
  is no neutron-gateway (provider network only) and use of DPDK.

  There are other issues under investigation about dpdk and checksumming but they don't seem related to this at first look.
  https://bugs.launchpad.net/ubuntu/+source/dpdk/+bug/1833713

  - Instances cannot be started once they are shutdown
  - It's happening to every instance after the problem first appeared
  - It's happening on different hosts
  - Any try to start will timeout with errors in nova log (bellow)
  - New instances can be created and they boot ok
  - Nothing new appears in openvswitch logs with normal debugging level
  - Nothing new appears on libvirt logs for the instance (last status is from last boot)

  2019-07-10 13:40:42.013 19975 ERROR oslo_messaging.rpc.server
  InternalError: Failure running os_vif plugin plug method: Failed to
  plug VIF
  VIFVHostUser(active=True,address=fa:16:3e:8e:8f:9b,has_traffic_filtering=False,id=ab6225f4-1cd8-43c7-8777-52c99ae80f67,mode='server',network=Network
  (d8249c3d-03d9-44ac-8eae-fa967993c73d),path='/run/libvirt-vhost-
  user/vhuab6225f4-1c',plugin='ovs',port_profile=VIFPortProfileOpenVSwitch,preserve_on_delete=True,vif_name='vhuab6225f4-1c').
  Got error: Error during following call to agent: ['ovs-vsctl', '--
  timeout=120', '--', '--if-exists', 'del-port', u'vhuab6225f4-1c',
  '--', 'add-port', u'br-int', u'vhuab6225f4-1c', '--', 'set',
  'Interface', u'vhuab6225f4-1c', u'external-ids:iface-
  id=ab6225f4-1cd8-43c7-8777-52c99ae80f67', 'external-ids:iface-
  status=active', u'external-ids:attached-mac=fa:16:3e:8e:8f:9b', u
  'external-ids:vm-uuid=5e46868f-8a52-4d70-b08a-9a320dc9821b',
  'type=dpdkvhostuserclient', u'options:vhost-server-path=/run/libvirt-
  vhost-user/vhuab6225f4-1c']

  2019-07-10 13:43:05.511 19975 ERROR os_vif AgentError: Error during
  following call to agent: ['ovs-vsctl', '--timeout=120', '--', '--if-
  exists', 'del-port', u'vhuab6225f4-1c', '--', 'add-port', u'br-int',
  u'vhuab6225f4-1c', '--', 'set', 'Interface', u'vhuab6225f4-1c', u
  'external-ids:iface-id=ab6225f4-1cd8-43c7-8777-52c99ae80f67',
  'external-ids:iface-status=active', u'external-ids:attached-
  mac=fa:16:3e:8e:8f:9b', u'external-ids:vm-uuid=5e46868f-8a52-4d70
  -b08a-9a320dc9821b', 'type=dpdkvhostuserclient', u'options:vhost-
  server-path=/run/libvirt-vhost-user/vhuab6225f4-1c']

  Complete logs will follow.

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