Python db.VirtualNetworkDM类代码示例

 def sandesh_vn_handle_request(self, req):
     # Return the vnst of PR routers
     resp = sandesh.VirtualNetworkListResp(virtual_networks=[])
     if req.name_or_uuid is None:
         for vn in VirtualNetworkDM.values():
             sandesh_vn = self.sandesh_vn_build(vn)
             resp.virtual_networks.append(sandesh_vn)
     else:
         vn = VirtualNetworkDM.find_by_name_or_uuid(req.name_or_uuid)
         if vn:
             sandesh_vn = self.sandesh_vn_build(vn)
             resp.virtual_networks.append(sandesh_vn)
     resp.response(req.context())

 def get_vn_li_map(self):
     pr = self.physical_router
     vn_dict = {}
     for vn_id in pr.virtual_networks:
         vn_dict[vn_id] = []
         vn = VirtualNetworkDM.get(vn_id)
         if vn and vn.router_external:
             vn_list = vn.get_connected_private_networks()
             for pvn in vn_list or []:
                 vn_dict[pvn] = []
     li_set = pr.logical_interfaces
     for pi_uuid in pr.physical_interfaces:
         pi = PhysicalInterfaceDM.get(pi_uuid)
         if pi is None:
             continue
         li_set |= pi.logical_interfaces
     for li_uuid in li_set:
         li = LogicalInterfaceDM.get(li_uuid)
         if li is None:
             continue
         vmi_id = li.virtual_machine_interface
         vmi = VirtualMachineInterfaceDM.get(vmi_id)
         if vmi is None:
             continue
         vn_id = vmi.virtual_network
         vn_dict.setdefault(vn_id, []).append(
             JunosInterface(li.name, li.li_type, li.vlan_tag, li_uuid=li.uuid))
     return vn_dict

    def _vnc_subscribe_callback(self, oper_info):
        self._db_resync_done.wait()
        dependency_tracker = None
        try:
            msg = "Notification Message: %s" % (pformat(oper_info))
            self.config_log(msg, level=SandeshLevel.SYS_DEBUG)
            obj_type = oper_info['type'].replace('-', '_')
            obj_class = DBBaseDM.get_obj_type_map().get(obj_type)
            if obj_class is None:
                return

            if oper_info['oper'] == 'CREATE':
                obj_dict = oper_info['obj_dict']
                obj_id = obj_dict['uuid']
                obj = obj_class.locate(obj_id, obj_dict)
                dependency_tracker = DependencyTracker(
                    DBBaseDM.get_obj_type_map(), self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
            elif oper_info['oper'] == 'UPDATE':
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                old_dt = None
                if obj is not None:
                    old_dt = DependencyTracker(
                        DBBaseDM.get_obj_type_map(), self._REACTION_MAP)
                    old_dt.evaluate(obj_type, obj)
                else:
                    obj = obj_class.locate(obj_id)
                obj.update()
                dependency_tracker = DependencyTracker(
                    DBBaseDM.get_obj_type_map(), self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
                if old_dt:
                    for resource, ids in old_dt.resources.items():
                        if resource not in dependency_tracker.resources:
                            dependency_tracker.resources[resource] = ids
                        else:
                            dependency_tracker.resources[resource] = list(
                                set(dependency_tracker.resources[resource]) |
                                set(ids))
            elif oper_info['oper'] == 'DELETE':
                obj_id = oper_info['uuid']
                obj = obj_class.get(obj_id)
                if obj is None:
                    return
                dependency_tracker = DependencyTracker(
                    DBBaseDM.get_obj_type_map(), self._REACTION_MAP)
                dependency_tracker.evaluate(obj_type, obj)
                obj_class.delete(obj_id)
            else:
                # unknown operation
                self.config_log('Unknown operation %s' % oper_info['oper'],
                                level=SandeshLevel.SYS_ERR)
                return

            if obj is None:
                self.config_log('Error while accessing %s uuid %s' % (
                                obj_type, obj_id))
                return

        except Exception:
            string_buf = cStringIO.StringIO()
            cgitb.Hook(file=string_buf, format="text").handle(sys.exc_info())
            self.config_log(string_buf.getvalue(), level=SandeshLevel.SYS_ERR)

        if not dependency_tracker:
            return

        for vn_id in dependency_tracker.resources.get('virtual_network', []):
            vn = VirtualNetworkDM.get(vn_id)
            if vn is not None:
                vn.update_instance_ip_map()

        for pr_id in dependency_tracker.resources.get('physical_router', []):
            pr = PhysicalRouterDM.get(pr_id)
            if pr is not None:
                pr.set_config_state()

    def __init__(self, args=None):
        self._args = args

        # Initialize discovery client
        self._disc = None
        if self._args.disc_server_ip and self._args.disc_server_port:
            self._disc = client.DiscoveryClient(
                self._args.disc_server_ip,
                self._args.disc_server_port,
                ModuleNames[Module.DEVICE_MANAGER])

        PushConfigState.set_repush_interval(int(self._args.repush_interval))
        PushConfigState.set_repush_max_interval(int(self._args.repush_max_interval))
        PushConfigState.set_push_delay_per_kb(float(self._args.push_delay_per_kb))
        PushConfigState.set_push_delay_max(int(self._args.push_delay_max))
        PushConfigState.set_push_delay_enable(bool(self._args.push_delay_enable))

        self._sandesh = Sandesh()
        # Reset the sandesh send rate limit value
        if self._args.sandesh_send_rate_limit is not None:
            SandeshSystem.set_sandesh_send_rate_limit( \
                self._args.sandesh_send_rate_limit)
        module = Module.DEVICE_MANAGER
        module_name = ModuleNames[module]
        node_type = Module2NodeType[module]
        node_type_name = NodeTypeNames[node_type]
        instance_id = INSTANCE_ID_DEFAULT
        hostname = socket.gethostname()
        self._sandesh.init_generator(
            module_name, hostname, node_type_name, instance_id,
            self._args.collectors, 'to_bgp_context',
            int(args.http_server_port),
            ['cfgm_common', 'device_manager.sandesh'], self._disc)
        self._sandesh.set_logging_params(enable_local_log=args.log_local,
                                         category=args.log_category,
                                         level=args.log_level,
                                         file=args.log_file,
                                         enable_syslog=args.use_syslog,
                                         syslog_facility=args.syslog_facility)
        PhysicalRouterDM._sandesh = self._sandesh
        ConnectionState.init(
            self._sandesh, hostname, module_name, instance_id,
            staticmethod(ConnectionState.get_process_state_cb),
            NodeStatusUVE, NodeStatus)

        # Retry till API server is up
        connected = False
        self.connection_state_update(ConnectionStatus.INIT)
        while not connected:
            try:
                self._vnc_lib = VncApi(
                    args.admin_user, args.admin_password,
                    args.admin_tenant_name, args.api_server_ip,
                    args.api_server_port, api_server_use_ssl=args.api_server_use_ssl)
                connected = True
                self.connection_state_update(ConnectionStatus.UP)
            except requests.exceptions.ConnectionError as e:
                # Update connection info
                self.connection_state_update(ConnectionStatus.DOWN, str(e))
                time.sleep(3)
            except ResourceExhaustionError:  # haproxy throws 503
                time.sleep(3)

        rabbit_servers = self._args.rabbit_server
        rabbit_port = self._args.rabbit_port
        rabbit_user = self._args.rabbit_user
        rabbit_password = self._args.rabbit_password
        rabbit_vhost = self._args.rabbit_vhost
        rabbit_ha_mode = self._args.rabbit_ha_mode

        self._db_resync_done = gevent.event.Event()

        q_name = 'device_manager.%s' % (socket.gethostname())
        self._vnc_kombu = VncKombuClient(rabbit_servers, rabbit_port,
                                         rabbit_user, rabbit_password,
                                         rabbit_vhost, rabbit_ha_mode,
                                         q_name, self._vnc_subscribe_callback,
                                         self.config_log)

        self._cassandra = DMCassandraDB.getInstance(self) 

        DBBaseDM.init(self, self._sandesh.logger(), self._cassandra)
        for obj in GlobalSystemConfigDM.list_obj():
            GlobalSystemConfigDM.locate(obj['uuid'], obj)

        for obj in GlobalVRouterConfigDM.list_obj():
            GlobalVRouterConfigDM.locate(obj['uuid'], obj)

        for obj in VirtualNetworkDM.list_obj():
            vn = VirtualNetworkDM.locate(obj['uuid'], obj)
            if vn is not None and vn.routing_instances is not None:
                for ri_id in vn.routing_instances:
                    ri_obj = RoutingInstanceDM.locate(ri_id)

        for obj in BgpRouterDM.list_obj():
            BgpRouterDM.locate(obj['uuid'], obj)

        pr_obj_list = PhysicalRouterDM.list_obj()
        pr_uuid_set = set([pr_obj['uuid'] for pr_obj in pr_obj_list])
        self._cassandra.handle_pr_deletes(pr_uuid_set)
#.........这里部分代码省略.........

#.........这里部分代码省略.........
        module = Module.DEVICE_MANAGER
        module_name = ModuleNames[module]
        node_type = Module2NodeType[module]
        node_type_name = NodeTypeNames[node_type]
        instance_id = INSTANCE_ID_DEFAULT
        hostname = socket.gethostname()
        self._sandesh.init_generator(
            module_name, hostname, node_type_name, instance_id,
            self._args.collectors, 'to_bgp_context',
            int(args.http_server_port),
            ['cfgm_common', 'device_manager.sandesh'], self._disc)
        self._sandesh.set_logging_params(enable_local_log=args.log_local,
                                         category=args.log_category,
                                         level=args.log_level,
                                         file=args.log_file,
                                         enable_syslog=args.use_syslog,
                                         syslog_facility=args.syslog_facility)
        ConnectionState.init(
            self._sandesh, hostname, module_name, instance_id,
            staticmethod(ConnectionState.get_process_state_cb),
            NodeStatusUVE, NodeStatus)

        # Retry till API server is up
        connected = False
        self.connection_state_update(ConnectionStatus.INIT)
        while not connected:
            try:
                self._vnc_lib = VncApi(
                    args.admin_user, args.admin_password,
                    args.admin_tenant_name, args.api_server_ip,
                    args.api_server_port)
                connected = True
                self.connection_state_update(ConnectionStatus.UP)
            except requests.exceptions.ConnectionError as e:
                # Update connection info
                self.connection_state_update(ConnectionStatus.DOWN, str(e))
                time.sleep(3)
            except ResourceExhaustionError:  # haproxy throws 503
                time.sleep(3)

        rabbit_server = self._args.rabbit_server
        rabbit_port = self._args.rabbit_port
        rabbit_user = self._args.rabbit_user
        rabbit_password = self._args.rabbit_password
        rabbit_vhost = self._args.rabbit_vhost

        self._db_resync_done = gevent.event.Event()

        q_name = 'device_manager.%s' % (socket.gethostname())
        self._vnc_kombu = VncKombuClient(rabbit_server, rabbit_port,
                                         rabbit_user, rabbit_password,
                                         rabbit_vhost, q_name,
                                         self._vnc_subscribe_callback,
                                         self.config_log)

        cass_server_list = self._args.cassandra_server_list
        reset_config = self._args.reset_config
        self._cassandra = VncCassandraClient(cass_server_list, reset_config,
                                             self._args.cluster_id, None,
                                             self.config_log)

        DBBaseDM.init(self._sandesh.logger(), self._cassandra)
        ok, pr_list = self._cassandra._cassandra_physical_router_list()
        if not ok:
            self.config_log('physical router list returned error: %s' %
                            pr_list)
        else:
            vn_set = set()
            for fq_name, uuid in pr_list:
                pr = PhysicalRouterDM.locate(uuid)
                if pr.bgp_router:
                    BgpRouterDM.locate(pr.bgp_router)
                vn_set |= pr.virtual_networks
                li_set = pr.logical_interfaces
                for pi_id in pr.physical_interfaces:
                    pi = PhysicalInterfaceDM.locate(pi_id)
                    if pi:
                        li_set |= pi.logical_interfaces
                vmi_set = set()
                for li_id in li_set:
                    li = LogicalInterfaceDM.locate(li_id)
                    if li and li.virtual_machine_interface:
                        vmi_set |= set([li.virtual_machine_interface])
                for vmi_id in vmi_set:
                    vmi = VirtualMachineInterfaceDM.locate(vmi_id)
                    if vmi:
                        vn_set |= vmi.virtual_networks

            for vn_id in vn_set:
                VirtualNetworkDM.locate(vn_id)

            for pr in PhysicalRouterDM.values():
                pr.push_config()

        self._db_resync_done.set()
        while 1:
            self._vnc_kombu._subscribe_greenlet.join()
            # In case _subscribe_greenlet dies for some reason, it will be
            # respawned. sleep for 1 second to wait for it to be respawned
            time.sleep(1)

    def __init__(self, args=None):
        self._args = args

        # Initialize discovery client
        self._disc = None
        if self._args.disc_server_ip and self._args.disc_server_port:
            self._disc = client.DiscoveryClient(
                self._args.disc_server_ip,
                self._args.disc_server_port,
                ModuleNames[Module.DEVICE_MANAGER])

        self._sandesh = Sandesh()
        module = Module.DEVICE_MANAGER
        module_name = ModuleNames[module]
        node_type = Module2NodeType[module]
        node_type_name = NodeTypeNames[node_type]
        instance_id = INSTANCE_ID_DEFAULT
        hostname = socket.gethostname()
        self._sandesh.init_generator(
            module_name, hostname, node_type_name, instance_id,
            self._args.collectors, 'to_bgp_context',
            int(args.http_server_port),
            ['cfgm_common', 'device_manager.sandesh'], self._disc)
        self._sandesh.set_logging_params(enable_local_log=args.log_local,
                                         category=args.log_category,
                                         level=args.log_level,
                                         file=args.log_file,
                                         enable_syslog=args.use_syslog,
                                         syslog_facility=args.syslog_facility)
        PhysicalRouterDM._sandesh = self._sandesh
        ConnectionState.init(
            self._sandesh, hostname, module_name, instance_id,
            staticmethod(ConnectionState.get_process_state_cb),
            NodeStatusUVE, NodeStatus)

        # Retry till API server is up
        connected = False
        self.connection_state_update(ConnectionStatus.INIT)
        while not connected:
            try:
                self._vnc_lib = VncApi(
                    args.admin_user, args.admin_password,
                    args.admin_tenant_name, args.api_server_ip,
                    args.api_server_port)
                connected = True
                self.connection_state_update(ConnectionStatus.UP)
            except requests.exceptions.ConnectionError as e:
                # Update connection info
                self.connection_state_update(ConnectionStatus.DOWN, str(e))
                time.sleep(3)
            except ResourceExhaustionError:  # haproxy throws 503
                time.sleep(3)

        rabbit_servers = self._args.rabbit_server
        rabbit_port = self._args.rabbit_port
        rabbit_user = self._args.rabbit_user
        rabbit_password = self._args.rabbit_password
        rabbit_vhost = self._args.rabbit_vhost
        rabbit_ha_mode = self._args.rabbit_ha_mode

        self._db_resync_done = gevent.event.Event()

        q_name = 'device_manager.%s' % (socket.gethostname())
        self._vnc_kombu = VncKombuClient(rabbit_servers, rabbit_port,
                                         rabbit_user, rabbit_password,
                                         rabbit_vhost, rabbit_ha_mode,
                                         q_name, self._vnc_subscribe_callback,
                                         self.config_log)

        cass_server_list = self._args.cassandra_server_list
        self._cassandra = VncCassandraClient(cass_server_list,
                                             self._args.cluster_id,
                                             None,
                                             self.config_log)

        DBBaseDM.init(self, self._sandesh.logger(), self._cassandra)
        ok, global_system_config_list = self._cassandra._cassandra_global_system_config_list()
        if not ok:
            self.config_log('global system config list returned error: %s' %
                            global_system_config_list)
        else:
            for fq_name, uuid in global_system_config_list:
                GlobalSystemConfigDM.locate(uuid)

        ok, global_vrouter_config_list = self._cassandra._cassandra_global_vrouter_config_list()
        if not ok:
            self.config_log('global vrouter config list returned error: %s' %
                            global_vrouter_config_list)
        else:
            for fq_name, uuid in global_vrouter_config_list:
                GlobalVRouterConfigDM.locate(uuid)

        ok, vn_list = self._cassandra._cassandra_virtual_network_list()
        if not ok:
            self.config_log('virtual network list returned error: %s' %
                            vn_list)
        else:
            for fq_name, uuid in vn_list:
                vn = VirtualNetworkDM.locate(uuid)
                if vn is not None and vn.routing_instances is not None:
#.........这里部分代码省略.........

    def __init__(self, dm_logger=None, args=None, zookeeper_client=None,
                 amqp_client=None):
        DeviceManager._instance = self
        self._args = args
        self._amqp_client = amqp_client
        self.logger = dm_logger or DeviceManagerLogger(args)
        self._vnc_amqp = DMAmqpHandle(self.logger, self.REACTION_MAP,
                                      self._args)

        PushConfigState.set_push_mode(int(self._args.push_mode))
        PushConfigState.set_repush_interval(int(self._args.repush_interval))
        PushConfigState.set_repush_max_interval(
            int(self._args.repush_max_interval))
        PushConfigState.set_push_delay_per_kb(
            float(self._args.push_delay_per_kb))
        PushConfigState.set_push_delay_max(int(self._args.push_delay_max))
        PushConfigState.set_push_delay_enable(
            bool(self._args.push_delay_enable))

        self._chksum = ""
        if self._args.collectors:
            self._chksum = hashlib.md5(
                ''.join(self._args.collectors)).hexdigest()

        # Register Plugins
        try:
            DeviceConf.register_plugins()
        except DeviceConf.PluginsRegistrationFailed as e:
            self.logger.error("Exception: " + str(e))
        except Exception as e:
            tb = traceback.format_exc()
            self.logger.error(
                "Internal error while registering plugins: " + str(e) + tb)

        # Register Ansible Plugins
        try:
            AnsibleBase.register_plugins()
        except AnsibleBase.PluginsRegistrationFailed as e:
            self.logger.error("Exception: " + str(e))
        except Exception as e:
            tb = traceback.format_exc()
            self.logger.error(
                "Internal error while registering ansible plugins: " +
                str(e) + tb)

        # Register Feature Plugins
        try:
            FeatureBase.register_plugins()
        except FeatureBase.PluginRegistrationFailed as e:
            self.logger.error("Exception: " + str(e))
        except Exception as e:
            tb = traceback.format_exc()
            self.logger.error(
                "Internal error while registering feature plugins: " +
                str(e) + tb)
            raise e

        # Retry till API server is up
        connected = False
        self.connection_state_update(ConnectionStatus.INIT)
        api_server_list = args.api_server_ip.split(',')
        while not connected:
            try:
                self._vnc_lib = VncApi(
                    args.admin_user, args.admin_password,
                    args.admin_tenant_name, api_server_list,
                    args.api_server_port,
                    api_server_use_ssl=args.api_server_use_ssl)
                connected = True
                self.connection_state_update(ConnectionStatus.UP)
            except requests.exceptions.ConnectionError as e:
                # Update connection info
                self.connection_state_update(ConnectionStatus.DOWN, str(e))
                time.sleep(3)
            except ResourceExhaustionError:  # haproxy throws 503
                time.sleep(3)

        if PushConfigState.is_push_mode_ansible():
            FabricManager.initialize(args, dm_logger, self._vnc_lib)
        # Initialize amqp
        self._vnc_amqp.establish()

        # Initialize cassandra
        self._object_db = DMCassandraDB.get_instance(zookeeper_client, self._args, self.logger)
        DBBaseDM.init(self, self.logger, self._object_db)
        DBBaseDM._sandesh = self.logger._sandesh

        GlobalSystemConfigDM.locate_all()
        FeatureDM.locate_all()
        PhysicalRoleDM.locate_all()
        OverlayRoleDM.locate_all()
        RoleDefinitionDM.locate_all()
        FeatureConfigDM.locate_all()
        NodeProfileDM.locate_all()
        RoleConfigDM.locate_all()
        GlobalVRouterConfigDM.locate_all()
        VirtualNetworkDM.locate_all()
        DataCenterInterconnectDM.locate_all()
        FabricDM.locate_all()
        FabricNamespaceDM.locate_all()
#.........这里部分代码省略.........

    def __init__(self, dm_logger=None, args=None, object_db=None,
                 amqp_client=None):
        DeviceManager._instance = self
        self._args = args
        self._amqp_client = amqp_client
        self._object_db = object_db

        PushConfigState.set_push_mode(int(self._args.push_mode))
        PushConfigState.set_repush_interval(int(self._args.repush_interval))
        PushConfigState.set_repush_max_interval(
            int(self._args.repush_max_interval))
        PushConfigState.set_push_delay_per_kb(
            float(self._args.push_delay_per_kb))
        PushConfigState.set_push_delay_max(int(self._args.push_delay_max))
        PushConfigState.set_push_delay_enable(
            bool(self._args.push_delay_enable))

        self._chksum = ""
        if self._args.collectors:
            self._chksum = hashlib.md5(
                ''.join(self._args.collectors)).hexdigest()

        # Initialize logger
        self.logger = dm_logger or DeviceManagerLogger(args)

        # Register Plugins
        try:
            DeviceConf.register_plugins()
        except DeviceConf.PluginsRegistrationFailed as e:
            self.logger.error("Exception: " + str(e))
        except Exception as e:
            tb = traceback.format_exc()
            self.logger.error(
                "Internal error while registering plugins: " + str(e) + tb)

        # Register Ansible Plugins
        try:
            AnsibleBase.register_plugins()
        except AnsibleBase.PluginsRegistrationFailed as e:
            self.logger.error("Exception: " + str(e))
        except Exception as e:
            tb = traceback.format_exc()
            self.logger.error(
                "Internal error while registering ansible plugins: " +
                str(e) + tb)

        # Retry till API server is up
        connected = False
        self.connection_state_update(ConnectionStatus.INIT)
        api_server_list = args.api_server_ip.split(',')
        while not connected:
            try:
                self._vnc_lib = VncApi(
                    args.admin_user, args.admin_password,
                    args.admin_tenant_name, api_server_list,
                    args.api_server_port,
                    api_server_use_ssl=args.api_server_use_ssl)
                connected = True
                self.connection_state_update(ConnectionStatus.UP)
            except requests.exceptions.ConnectionError as e:
                # Update connection info
                self.connection_state_update(ConnectionStatus.DOWN, str(e))
                time.sleep(3)
            except ResourceExhaustionError:  # haproxy throws 503
                time.sleep(3)

        # Initialize amqp
        self._vnc_amqp = DMAmqpHandle(self.logger, self.REACTION_MAP,
                                      self._args)
        self._vnc_amqp.establish()

        DBBaseDM.init(self, self.logger, self._object_db)
        DBBaseDM._sandesh = self.logger._sandesh

        for obj in GlobalSystemConfigDM.list_obj():
            GlobalSystemConfigDM.locate(obj['uuid'], obj)

        for obj in NodeProfileDM.list_obj():
            NodeProfileDM.locate(obj['uuid'], obj)

        for obj in RoleConfigDM.list_obj():
            RoleConfigDM.locate(obj['uuid'], obj)

        for obj in GlobalVRouterConfigDM.list_obj():
            GlobalVRouterConfigDM.locate(obj['uuid'], obj)

        for obj in VirtualNetworkDM.list_obj():
            VirtualNetworkDM.locate(obj['uuid'], obj)

        dci_obj_list = DataCenterInterconnectDM.list_obj()
        for obj in dci_obj_list or []:
            DataCenterInterconnectDM.locate(obj['uuid'], obj)

        for obj in FabricDM.list_obj():
            FabricDM.locate(obj['uuid'], obj)

        for obj in FabricNamespaceDM.list_obj():
            FabricNamespaceDM.locate(obj['uuid'], obj)

        for obj in LogicalRouterDM.list_obj():
#.........这里部分代码省略.........

    def __init__(self, dm_logger=None, args=None):
        self._args = args
        PushConfigState.set_repush_interval(int(self._args.repush_interval))
        PushConfigState.set_repush_max_interval(int(self._args.repush_max_interval))
        PushConfigState.set_push_delay_per_kb(float(self._args.push_delay_per_kb))
        PushConfigState.set_push_delay_max(int(self._args.push_delay_max))
        PushConfigState.set_push_delay_enable(bool(self._args.push_delay_enable))

        self._chksum = "";
        if self._args.collectors:
            self._chksum = hashlib.md5(''.join(self._args.collectors)).hexdigest()

        # Initialize logger
        self.logger = dm_logger or DeviceManagerLogger(args)

        # Register Plugins
        try:
            DeviceConf.register_plugins()
        except DeviceConf.PluginsRegistrationFailed as e:
            self.logger.error("Exception: " + str(e))
        except Exception as e:
            tb = traceback.format_exc()
            self.logger.error("Internal error while registering plugins: " + str(e) + tb)

        # Retry till API server is up
        connected = False
        self.connection_state_update(ConnectionStatus.INIT)
        while not connected:
            try:
                self._vnc_lib = VncApi(
                    args.admin_user, args.admin_password,
                    args.admin_tenant_name, args.api_server_ip,
                    args.api_server_port,
                    api_server_use_ssl=args.api_server_use_ssl)
                connected = True
                self.connection_state_update(ConnectionStatus.UP)
            except requests.exceptions.ConnectionError as e:
                # Update connection info
                self.connection_state_update(ConnectionStatus.DOWN, str(e))
                time.sleep(3)
            except ResourceExhaustionError:  # haproxy throws 503
                time.sleep(3)

        """ @sighup
        Handle of SIGHUP for collector list config change
        """
        gevent.signal(signal.SIGHUP, self.sighup_handler)

        # Initialize amqp
        self._vnc_amqp = DMAmqpHandle(self.logger, self.REACTION_MAP,
                                      self._args)
        self._vnc_amqp.establish()

        # Initialize cassandra
        self._object_db = DMCassandraDB.get_instance(self, _zookeeper_client)
        DBBaseDM.init(self, self.logger, self._object_db)
        DBBaseDM._sandesh = self.logger._sandesh

        for obj in GlobalSystemConfigDM.list_obj():
            GlobalSystemConfigDM.locate(obj['uuid'], obj)

        for obj in GlobalVRouterConfigDM.list_obj():
            GlobalVRouterConfigDM.locate(obj['uuid'], obj)

        for obj in VirtualNetworkDM.list_obj():
            VirtualNetworkDM.locate(obj['uuid'], obj)

        for obj in LogicalRouterDM.list_obj():
            LogicalRouterDM.locate(obj['uuid'], obj)

        for obj in RoutingInstanceDM.list_obj():
            RoutingInstanceDM.locate(obj['uuid'], obj)

        for obj in BgpRouterDM.list_obj():
            BgpRouterDM.locate(obj['uuid'], obj)

        pr_obj_list = PhysicalRouterDM.list_obj()
        for obj in pr_obj_list:
            PhysicalRouterDM.locate(obj['uuid'],obj)

        pr_uuid_set = set([pr_obj['uuid'] for pr_obj in pr_obj_list])
        self._object_db.handle_pr_deletes(pr_uuid_set)

        for obj in PortTupleDM.list_obj():
            PortTupleDM.locate(obj['uuid'],obj)

        for obj in PhysicalInterfaceDM.list_obj():
            PhysicalInterfaceDM.locate(obj['uuid'],obj)

        for obj in LogicalInterfaceDM.list_obj():
            LogicalInterfaceDM.locate(obj['uuid'],obj)

        for obj in VirtualMachineInterfaceDM.list_obj():
            VirtualMachineInterfaceDM.locate(obj['uuid'],obj)

        for obj in pr_obj_list:
            pr = PhysicalRouterDM.locate(obj['uuid'], obj)
            li_set = pr.logical_interfaces
            vmi_set = set()
            for pi_id in pr.physical_interfaces:
#.........这里部分代码省略.........