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[niusmallnan <zhangzb@xxxxxxxxx>]

Public bug reported:

neutron-usage-audit code:

    cxt = context.get_admin_context()
    plugin = manager.NeutronManager.get_plugin()
    l3_plugin = manager.NeutronManager.get_service_plugins().get(
            constants.L3_ROUTER_NAT)

when it gets l3_plugin  instance,  setup_rpc func will be executed:

    @log_helpers.log_method_call
    def setup_rpc(self):
        # RPC support
        self.topic = topics.L3PLUGIN
        self.conn = n_rpc.create_connection(new=True)
        self.agent_notifiers.update(
            {n_const.AGENT_TYPE_L3: l3_rpc_agent_api.L3AgentNotifyAPI()})
        self.endpoints = [l3_rpc.L3RpcCallback()]
        self.conn.create_consumer(self.topic, self.endpoints,
                                  fanout=False)
        self.conn.consume_in_threads()

consume_in_threads  func need the eventlet monkey_patch, otherwise the
main process will be blocked.

** Affects: neutron
     Importance: Undecided
         Status: New

** Patch added: "neutron-usage-audit-eventlet-patch.txt"
   https://bugs.launchpad.net/bugs/1522681/+attachment/4529376/+files/neutron-usage-audit-eventlet-patch.txt

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https://bugs.launchpad.net/bugs/1522681

Title:
  neutron-usage-audit doesn't work properly

Status in neutron:
  New

Bug description:
  neutron-usage-audit code:

      cxt = context.get_admin_context()
      plugin = manager.NeutronManager.get_plugin()
      l3_plugin = manager.NeutronManager.get_service_plugins().get(
              constants.L3_ROUTER_NAT)

  when it gets l3_plugin  instance,  setup_rpc func will be executed:

      @log_helpers.log_method_call
      def setup_rpc(self):
          # RPC support
          self.topic = topics.L3PLUGIN
          self.conn = n_rpc.create_connection(new=True)
          self.agent_notifiers.update(
              {n_const.AGENT_TYPE_L3: l3_rpc_agent_api.L3AgentNotifyAPI()})
          self.endpoints = [l3_rpc.L3RpcCallback()]
          self.conn.create_consumer(self.topic, self.endpoints,
                                    fanout=False)
          self.conn.consume_in_threads()

  consume_in_threads  func need the eventlet monkey_patch, otherwise the
  main process will be blocked.

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