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[Eugene Nikanorov <enikanorov@xxxxxxxxxxxx>]

Observed behavior applies to Juno release and was fixed later.

** Changed in: neutron
       Status: In Progress => Invalid

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https://bugs.launchpad.net/bugs/1419745

Title:
  RPC method in OVS agent attempt to access uninitialized attribute

Status in OpenStack Neutron (virtual network service):
  Invalid

Bug description:
  The following trace was observed during OVS agent startup.

  2015-02-09 07:32:54.512 25702 ERROR oslo.messaging.rpc.dispatcher [req-e7ffbedc-3e8e-4699-a341-9e14ec04f231 ] Exception during message handling: 'OVSNeutronAgent' object has no attribute 'enable_tunneling'
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 137, in _dispatch_and_reply
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher     incoming.message))
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 180, in _dispatch
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher     return self._do_dispatch(endpoint, method, ctxt, args)
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/oslo/messaging/rpc/dispatcher.py", line 126, in _do_dispatch
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher     result = getattr(endpoint, method)(ctxt, **new_args)
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/dist-packages/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py", line 321, in tunnel_update
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher     if not self.enable_tunneling:
  2015-02-09 07:32:54.512 25702 TRACE oslo.messaging.rpc.dispatcher AttributeError: 'OVSNeutronAgent' object has no attribute 'enable_tunneling'

  The failure is caused by tunnel_update rpc message handled during OVS
  agent initialization.

  This failure at agent startup leads to connectivity failure of whole
  node, because tunnels are not set up properly.

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