+ def stop_metric(self, vnf_name, vnf_interface=None, metric=None):\r
+\r
+ # check if port is specified (vnf:port)\r
+ if vnf_interface is None and metric is not None:\r
+ # take first interface by default\r
+ connected_sw = self.net.DCNetwork_graph.neighbors(vnf_name)[0]\r
+ link_dict = self.net.DCNetwork_graph[vnf_name][connected_sw]\r
+ vnf_interface = link_dict[0]['src_port_id']\r
+\r
+ for metric_dict in self.network_metrics:\r
+ if metric_dict['vnf_name'] == vnf_name and metric_dict['vnf_interface'] == vnf_interface \\r
+ and metric_dict['metric_key'] == metric:\r
+\r
+ self.monitor_lock.acquire()\r
+\r
+ self.network_metrics.remove(metric_dict)\r
+\r
+ #this removes the complete metric, all labels...\r
+ #REGISTRY.unregister(self.prom_metrics[metric_dict['metric_key']])\r
+ #self.registry.unregister(self.prom_metrics[metric_dict['metric_key']])\r
+\r
+ for collector in self.registry._collectors :\r
+\r
+ """\r
+ INFO:root:name:sonemu_rx_count_packets\r
+ labels:('vnf_name', 'vnf_interface')\r
+ metrics:{(u'tsrc', u'output'): < prometheus_client.core.Gauge\r
+ object\r
+ at\r
+ 0x7f353447fd10 >}\r
+ """\r
+ logging.info('{0}'.format(collector._metrics.values()))\r
+\r
+ if (vnf_name, vnf_interface, 'None') in collector._metrics:\r
+ logging.info('2 name:{0} labels:{1} metrics:{2}'.format(collector._name, collector._labelnames,\r
+ collector._metrics))\r
+ collector.remove(vnf_name, vnf_interface, 'None')\r
+\r
+ # set values to NaN, prometheus api currently does not support removal of metrics\r
+ #self.prom_metrics[metric_dict['metric_key']].labels(vnf_name, vnf_interface).set(float('nan'))\r
+\r
+ # this removes the complete metric, all labels...\r
+ # 1 single monitor job for all metrics of the SDN controller\r
+ # we can only remove from the pushgateway grouping keys(labels) which we have defined for the add_to_pushgateway\r
+ # we can not specify labels from the metrics to be removed\r
+ # if we need to remove the metrics seperatelty, we need to give them a separate grouping key, and probably a diffferent registry also\r
+ delete_from_gateway(self.pushgateway, job='sonemu-SDNcontroller')\r
+\r
+ self.monitor_lock.release()\r
+\r
+ logging.info('Stopped monitoring: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric))\r
+ return 'Stopped monitoring: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric)\r
+\r
+ # delete everything from this vnf\r
+ elif metric_dict['vnf_name'] == vnf_name and vnf_interface is None and metric is None:\r
+ self.monitor_lock.acquire()\r
+ self.network_metrics.remove(metric_dict)\r
+ for collector in self.registry._collectors:\r
+ collector_dict = collector._metrics.copy()\r
+ for name, interface, id in collector_dict:\r
+ if name == vnf_name:\r
+ logging.info('3 name:{0} labels:{1} metrics:{2}'.format(collector._name, collector._labelnames,\r
+ collector._metrics))\r
+ collector.remove(name, interface, 'None')\r
+\r
+ delete_from_gateway(self.pushgateway, job='sonemu-SDNcontroller')\r
+ self.monitor_lock.release()\r
+ logging.info('Stopped monitoring vnf: {0}'.format(vnf_name))\r
+ return 'Stopped monitoring: {0}'.format(vnf_name)\r
+\r
+ return 'Error stopping monitoring metric: {0} on {1}:{2}'.format(metric, vnf_name, vnf_interface)\r
+\r
+\r
+# get all metrics defined in the list and export it to Prometheus\r
+ def get_flow_metrics(self):\r
+ while self.start_monitoring:\r
+\r
+ self.monitor_flow_lock.acquire()\r
+\r
+ for flow_dict in self.flow_metrics:\r
+ data = {}\r
+\r
+ data['cookie'] = flow_dict['cookie']\r
+ data['cookie_mask'] = COOKIE_MASK\r
+\r
+ if 'tx' in flow_dict['metric_key']:\r
+ data['match'] = {'in_port':flow_dict['mon_port']}\r
+ elif 'rx' in flow_dict['metric_key']:\r
+ data['out_port'] = flow_dict['mon_port']\r
+\r
+\r
+ # query Ryu\r
+ ret = self.net.ryu_REST('stats/flow', dpid=flow_dict['switch_dpid'], data=data)\r
+ if isinstance(ret, dict):\r
+ flow_stat_dict = ret\r
+ elif isinstance(ret, basestring):\r
+ flow_stat_dict = ast.literal_eval(ret.rstrip())\r
+ else:\r
+ flow_stat_dict = None\r
+\r
+ logging.debug('received flow stat:{0} '.format(flow_stat_dict))\r
+\r
+ self.set_flow_metric(flow_dict, flow_stat_dict)\r
+\r
+ self.monitor_flow_lock.release()\r
+ time.sleep(1)\r