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[Alan Pevec <1300570@xxxxxxxxxxxxxxxxxx>]

** Also affects: neutron/icehouse
   Importance: Undecided
       Status: New

** Changed in: neutron/icehouse
       Status: New => In Progress

** Changed in: neutron/icehouse
   Importance: Undecided => Medium

** Changed in: neutron/icehouse
     Assignee: (unassigned) => Itsuro Oda (oda-g)

** Tags removed: icehouse-backport-potential

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https://bugs.launchpad.net/bugs/1300570

Title:
  dhcp_agent fails in RPC communication with neutron-server under
  Metaplugin

Status in OpenStack Neutron (virtual network service):
  Fix Committed
Status in neutron icehouse series:
  In Progress

Bug description:
  This problem occurs when ml2 plugin runs under Metaplugin.

  error log of dhcp_agent is as follows:
  ---
  2014-03-28 18:57:17.062 ERROR neutron.agent.dhcp_agent [req-9c53d7a6-d850-42de-896f-184827b33bfd None None] Failed reporting state!
  2014-03-28 18:57:17.062 TRACE neutron.agent.dhcp_agent Traceback (most recent call last):
  2014-03-28 18:57:17.062 TRACE neutron.agent.dhcp_agent   File "/opt/stack/neutron/neutron/agent/dhcp_agent.py", line 564, in _report_state
  2014-03-28 18:57:17.062 TRACE neutron.agent.dhcp_agent     self.state_rpc.report_state(ctx, self.agent_state, self.use_call)
  2014-03-28 18:57:17.062 TRACE neutron.agent.dhcp_agent   File "/opt/stack/neutron/neutron/agent/rpc.py", line 72, in report_state
  2014-03-28 18:57:17.062 TRACE neutron.agent.dhcp_agent     return self.call(context, msg, topic=self.topic)
  2014-03-28 18:57:17.062 TRACE neutron.agent.dhcp_agent   File "/opt/stack/neutron/neutron/openstack/common/rpc/proxy.py", line 129, in call
  2014-03-28 18:57:17.062 TRACE neutron.agent.dhcp_agent     exc.info, real_topic, msg.get('method'))
  2014-03-28 18:57:17.062 TRACE neutron.agent.dhcp_agent Timeout: Timeout while waiting on RPC response - topic: "q-plugin", RPC method: "report_state" info: "<unknown>" 
  2014-03-28 18:57:17.062 TRACE neutron.agent.dhcp_agent 
  ---

  This problem is brought by the patch:
   https://review.openstack.org/#/c/72565/
  because ml2 plguin does not become to open RPC connection at plugin initialization.

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