X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=src%2Femuvim%2Fdcemulator%2Fmonitoring.py;h=f34b37ce4676f8f26abd5e5042803a0931a399c7;hb=332940d4e4c7e6155bbc1a21d5f13cd71214b539;hp=82411fdddfe38103d8f700968cb3a2c65f8d6fd1;hpb=1cbad5fddca5a204ac4c2c6a5ba1e9df949f1dd6;p=osm%2Fvim-emu.git diff --git a/src/emuvim/dcemulator/monitoring.py b/src/emuvim/dcemulator/monitoring.py index 82411fd..f34b37c 100755 --- a/src/emuvim/dcemulator/monitoring.py +++ b/src/emuvim/dcemulator/monitoring.py @@ -5,11 +5,15 @@ import logging from mininet.node import OVSSwitch import ast import time -from prometheus_client import start_http_server, Summary, Histogram, Gauge, Counter, REGISTRY +from prometheus_client import start_http_server, Summary, Histogram, Gauge, Counter, REGISTRY, CollectorRegistry, \ + pushadd_to_gateway, push_to_gateway, delete_from_gateway import threading from subprocess import Popen, PIPE import os +import paramiko +import gevent + logging.basicConfig(level=logging.INFO) """ @@ -19,23 +23,27 @@ class to read openflow stats from the Ryu controller of the DCNetwork class DCNetworkMonitor(): def __init__(self, net): self.net = net - # link to Ryu REST_API - self.ip = '0.0.0.0' - self.port = '8080' - self.REST_api = 'http://{0}:{1}'.format(self.ip,self.port) + + prometheus_ip = '127.0.0.1' + prometheus_port = '9090' + self.prometheus_REST_api = 'http://{0}:{1}'.format(prometheus_ip, prometheus_port) + + # helper variables to calculate the metrics + self.pushgateway = 'localhost:9091' # Start up the server to expose the metrics to Prometheus. - start_http_server(8000) + #start_http_server(8000) # supported Prometheus metrics + self.registry = CollectorRegistry() self.prom_tx_packet_count = Gauge('sonemu_tx_count_packets', 'Total number of packets sent', - ['vnf_name', 'vnf_interface']) + ['vnf_name', 'vnf_interface', 'flow_id'], registry=self.registry) self.prom_rx_packet_count = Gauge('sonemu_rx_count_packets', 'Total number of packets received', - ['vnf_name', 'vnf_interface']) + ['vnf_name', 'vnf_interface', 'flow_id'], registry=self.registry) self.prom_tx_byte_count = Gauge('sonemu_tx_count_bytes', 'Total number of bytes sent', - ['vnf_name', 'vnf_interface']) + ['vnf_name', 'vnf_interface', 'flow_id'], registry=self.registry) self.prom_rx_byte_count = Gauge('sonemu_rx_count_bytes', 'Total number of bytes received', - ['vnf_name', 'vnf_interface']) + ['vnf_name', 'vnf_interface', 'flow_id'], registry=self.registry) self.prom_metrics={'tx_packets':self.prom_tx_packet_count, 'rx_packets':self.prom_rx_packet_count, 'tx_bytes':self.prom_tx_byte_count,'rx_bytes':self.prom_rx_byte_count} @@ -53,17 +61,107 @@ class DCNetworkMonitor(): mon_port = None } ''' + self.monitor_lock = threading.Lock() + self.monitor_flow_lock = threading.Lock() self.network_metrics = [] + self.flow_metrics = [] # start monitoring thread self.start_monitoring = True self.monitor_thread = threading.Thread(target=self.get_network_metrics) self.monitor_thread.start() + self.monitor_flow_thread = threading.Thread(target=self.get_flow_metrics) + self.monitor_flow_thread.start() + # helper tools - self.prometheus_process = self.start_Prometheus() + #self.pushgateway_process = self.start_PushGateway() + #self.prometheus_process = self.start_Prometheus() self.cadvisor_process = self.start_cadvisor() + # first set some parameters, before measurement can start + def setup_flow(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=0): + + flow_metric = {} + + # check if port is specified (vnf:port) + if vnf_interface is None: + # take first interface by default + connected_sw = self.net.DCNetwork_graph.neighbors(vnf_name)[0] + link_dict = self.net.DCNetwork_graph[vnf_name][connected_sw] + vnf_interface = link_dict[0]['src_port_id'] + + flow_metric['vnf_name'] = vnf_name + flow_metric['vnf_interface'] = vnf_interface + + vnf_switch = None + for connected_sw in self.net.DCNetwork_graph.neighbors(vnf_name): + link_dict = self.net.DCNetwork_graph[vnf_name][connected_sw] + for link in link_dict: + # logging.info("{0},{1}".format(link_dict[link],vnf_interface)) + if link_dict[link]['src_port_id'] == vnf_interface: + # found the right link and connected switch + # logging.info("{0},{1}".format(link_dict[link]['src_port_id'], vnf_source_interface)) + vnf_switch = connected_sw + flow_metric['mon_port'] = link_dict[link]['dst_port_nr'] + break + + if not vnf_switch: + logging.exception("vnf switch of {0}:{1} not found!".format(vnf_name, vnf_interface)) + return "vnf switch of {0}:{1} not found!".format(vnf_name, vnf_interface) + + try: + # default port direction to monitor + if metric is None: + metric = 'tx_packets' + + next_node = self.net.getNodeByName(vnf_switch) + + if not isinstance(next_node, OVSSwitch): + logging.info("vnf: {0} is not connected to switch".format(vnf_name)) + return + + flow_metric['previous_measurement'] = 0 + flow_metric['previous_monitor_time'] = 0 + + flow_metric['switch_dpid'] = int(str(next_node.dpid), 16) + flow_metric['metric_key'] = metric + flow_metric['cookie'] = cookie + + self.monitor_flow_lock.acquire() + self.flow_metrics.append(flow_metric) + self.monitor_flow_lock.release() + + logging.info('Started monitoring flow:{3} {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric, cookie)) + return 'Started monitoring flow:{3} {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric, cookie) + + except Exception as ex: + logging.exception("setup_metric error.") + return ex.message + + def stop_flow(self, vnf_name, vnf_interface=None, metric=None, cookie=0): + for flow_dict in self.flow_metrics: + if flow_dict['vnf_name'] == vnf_name and flow_dict['vnf_interface'] == vnf_interface \ + and flow_dict['metric_key'] == metric and flow_dict['cookie'] == cookie: + + self.monitor_flow_lock.acquire() + + self.flow_metrics.remove(flow_dict) + + for collector in self.registry._collectors: + if (vnf_name, vnf_interface, cookie) in collector._metrics: + #logging.info('2 name:{0} labels:{1} metrics:{2}'.format(collector._name, collector._labelnames, + # collector._metrics)) + collector.remove(vnf_name, vnf_interface, cookie) + + delete_from_gateway(self.pushgateway, job='sonemu-SDNcontroller') + + self.monitor_flow_lock.release() + + logging.info('Stopped monitoring flow {3}: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric, cookie)) + return 'Stopped monitoring flow {3}: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric, cookie) + + # first set some parameters, before measurement can start def setup_metric(self, vnf_name, vnf_interface=None, metric='tx_packets'): @@ -86,7 +184,7 @@ class DCNetworkMonitor(): if link_dict[link]['src_port_id'] == vnf_interface: # found the right link and connected switch # logging.info("{0},{1}".format(link_dict[link]['src_port_id'], vnf_source_interface)) - network_metric['mon_port'] = link_dict[link]['dst_port'] + network_metric['mon_port'] = link_dict[link]['dst_port_nr'] break if 'mon_port' not in network_metric: @@ -121,7 +219,11 @@ class DCNetworkMonitor(): network_metric['switch_dpid'] = int(str(next_node.dpid), 16) network_metric['metric_key'] = metric + self.monitor_lock.acquire() + self.network_metrics.append(network_metric) + self.monitor_lock.release() + logging.info('Started monitoring: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric)) return 'Started monitoring: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric) @@ -130,26 +232,104 @@ class DCNetworkMonitor(): logging.exception("setup_metric error.") return ex.message - def stop_metric(self, vnf_name, vnf_interface, metric): + def stop_metric(self, vnf_name, vnf_interface=None, metric=None): + for metric_dict in self.network_metrics: + #logging.info('start Stopped monitoring: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric_dict)) if metric_dict['vnf_name'] == vnf_name and metric_dict['vnf_interface'] == vnf_interface \ and metric_dict['metric_key'] == metric: + self.monitor_lock.acquire() + self.network_metrics.remove(metric_dict) #this removes the complete metric, all labels... #REGISTRY.unregister(self.prom_metrics[metric_dict['metric_key']]) + #self.registry.unregister(self.prom_metrics[metric_dict['metric_key']]) + + for collector in self.registry._collectors : + #logging.info('name:{0} labels:{1} metrics:{2}'.format(collector._name, collector._labelnames, collector._metrics)) + """ + INFO:root:name:sonemu_rx_count_packets + labels:('vnf_name', 'vnf_interface') + metrics:{(u'tsrc', u'output'): < prometheus_client.core.Gauge + object + at + 0x7f353447fd10 >} + """ + logging.info('{0}'.format(collector._metrics.values())) + #if self.prom_metrics[metric_dict['metric_key']] + if (vnf_name, vnf_interface, 'None') in collector._metrics: + logging.info('2 name:{0} labels:{1} metrics:{2}'.format(collector._name, collector._labelnames, + collector._metrics)) + #collector._metrics = {} + collector.remove(vnf_name, vnf_interface, 'None') # set values to NaN, prometheus api currently does not support removal of metrics - self.prom_metrics[metric_dict['metric_key']].labels(vnf_name, vnf_interface).set(float('nan')) + #self.prom_metrics[metric_dict['metric_key']].labels(vnf_name, vnf_interface).set(float('nan')) + + # this removes the complete metric, all labels... + # 1 single monitor job for all metrics of the SDN controller + # we can only remove from the pushgateway grouping keys(labels) which we have defined for the add_to_pushgateway + # we can not specify labels from the metrics to be removed + # if we need to remove the metrics seperatelty, we need to give them a separate grouping key, and probably a diffferent registry also + delete_from_gateway(self.pushgateway, job='sonemu-SDNcontroller') + + self.monitor_lock.release() logging.info('Stopped monitoring: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric)) return 'Stopped monitoring: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric) + # delete everything from this vnf + elif metric_dict['vnf_name'] == vnf_name and vnf_interface is None and metric is None: + self.monitor_lock.acquire() + self.network_metrics.remove(metric_dict) + for collector in self.registry._collectors: + collector_dict = collector._metrics.copy() + for name, interface, id in collector_dict: + if name == vnf_name: + logging.info('3 name:{0} labels:{1} metrics:{2}'.format(collector._name, collector._labelnames, + collector._metrics)) + collector.remove(name, interface, 'None') + + delete_from_gateway(self.pushgateway, job='sonemu-SDNcontroller') + self.monitor_lock.release() + logging.info('Stopped monitoring vnf: {0}'.format(vnf_name)) + return 'Stopped monitoring: {0}'.format(vnf_name) + # get all metrics defined in the list and export it to Prometheus + def get_flow_metrics(self): + while self.start_monitoring: + + self.monitor_flow_lock.acquire() + + for flow_dict in self.flow_metrics: + data = {} + + data['cookie'] = flow_dict['cookie'] + + if 'tx' in flow_dict['metric_key']: + data['match'] = {'in_port':flow_dict['mon_port']} + elif 'rx' in flow_dict['metric_key']: + data['out_port'] = flow_dict['mon_port'] + + + # query Ryu + ret = self.net.ryu_REST('stats/flow', dpid=flow_dict['switch_dpid'], data=data) + flow_stat_dict = ast.literal_eval(ret) + + #logging.info('received flow stat:{0} '.format(flow_stat_dict)) + self.set_flow_metric(flow_dict, flow_stat_dict) + + self.monitor_flow_lock.release() + time.sleep(1) + def get_network_metrics(self): while self.start_monitoring: + + self.monitor_lock.acquire() + # group metrics by dpid to optimize the rest api calls dpid_list = [metric_dict['switch_dpid'] for metric_dict in self.network_metrics] dpid_set = set(dpid_list) @@ -157,7 +337,7 @@ class DCNetworkMonitor(): for dpid in dpid_set: # query Ryu - ret = self.REST_cmd('stats/port', dpid) + ret = self.net.ryu_REST('stats/port', dpid=dpid) port_stat_dict = ast.literal_eval(ret) metric_list = [metric_dict for metric_dict in self.network_metrics @@ -166,6 +346,7 @@ class DCNetworkMonitor(): for metric_dict in metric_list: self.set_network_metric(metric_dict, port_stat_dict) + self.monitor_lock.release() time.sleep(1) # add metric to the list to export to Prometheus, parse the Ryu port-stats reply @@ -186,7 +367,14 @@ class DCNetworkMonitor(): #logging.info('set prom packets:{0} {1}:{2}'.format(this_measurement, vnf_name, vnf_interface)) # set prometheus metric - self.prom_metrics[metric_dict['metric_key']].labels(vnf_name, vnf_interface).set(this_measurement) + self.prom_metrics[metric_dict['metric_key']].\ + labels({'vnf_name': vnf_name, 'vnf_interface': vnf_interface, 'flow_id': None}).\ + set(this_measurement) + #push_to_gateway(self.pushgateway, job='SDNcontroller', + # grouping_key={'metric':metric_dict['metric_key']}, registry=self.registry) + + # 1 single monitor job for all metrics of the SDN controller + pushadd_to_gateway(self.pushgateway, job='sonemu-SDNcontroller', registry=self.registry) if previous_monitor_time <= 0 or previous_monitor_time >= port_uptime: metric_dict['previous_measurement'] = int(port_stat[metric_key]) @@ -194,25 +382,71 @@ class DCNetworkMonitor(): # do first measurement #logging.info('first measurement') time.sleep(1) - byte_rate = self.get_network_metrics() - return byte_rate + self.monitor_lock.release() + + metric_rate = self.get_network_metrics() + return metric_rate + else: time_delta = (port_uptime - metric_dict['previous_monitor_time']) - byte_rate = (this_measurement - metric_dict['previous_measurement']) / float(time_delta) - # logging.info('uptime:{2} delta:{0} rate:{1}'.format(time_delta,byte_rate,port_uptime)) + metric_rate = (this_measurement - metric_dict['previous_measurement']) / float(time_delta) + #logging.info('metric: {0} rate:{1}'.format(metric_dict['metric_key'], metric_rate)) metric_dict['previous_measurement'] = this_measurement metric_dict['previous_monitor_time'] = port_uptime - return byte_rate + return metric_rate logging.exception('metric {0} not found on {1}:{2}'.format(metric_key, vnf_name, vnf_interface)) return 'metric {0} not found on {1}:{2}'.format(metric_key, vnf_name, vnf_interface) + def set_flow_metric(self, metric_dict, flow_stat_dict): + # vnf tx is the datacenter switch rx and vice-versa + #metric_key = self.switch_tx_rx(metric_dict['metric_key']) + metric_key = metric_dict['metric_key'] + switch_dpid = metric_dict['switch_dpid'] + vnf_name = metric_dict['vnf_name'] + vnf_interface = metric_dict['vnf_interface'] + previous_measurement = metric_dict['previous_measurement'] + previous_monitor_time = metric_dict['previous_monitor_time'] + cookie = metric_dict['cookie'] + + # TODO aggregate all found flow stats + flow_stat = flow_stat_dict[str(switch_dpid)][0] + if 'bytes' in metric_key: + counter = flow_stat['byte_count'] + elif 'packet' in metric_key: + counter = flow_stat['packet_count'] + + flow_uptime = flow_stat['duration_sec'] + flow_stat['duration_nsec'] * 10 ** (-9) + + self.prom_metrics[metric_dict['metric_key']]. \ + labels({'vnf_name': vnf_name, 'vnf_interface': vnf_interface, 'flow_id': cookie}). \ + set(counter) + pushadd_to_gateway(self.pushgateway, job='sonemu-SDNcontroller', registry=self.registry) - def REST_cmd(self, prefix, dpid): - url = self.REST_api + '/' + str(prefix) + '/' + str(dpid) + #logging.exception('metric {0} not found on {1}:{2}'.format(metric_key, vnf_name, vnf_interface)) + #return 'metric {0} not found on {1}:{2}'.format(metric_key, vnf_name, vnf_interface) + + def query_Prometheus(self, query): + ''' + escaped_chars='{}[]' + for old in escaped_chars: + new = '\{0}'.format(old) + query = query.replace(old, new) + ''' + url = self.prometheus_REST_api + '/' + 'api/v1/query?query=' + query + #logging.info('query:{0}'.format(url)) req = urllib2.Request(url) ret = urllib2.urlopen(req).read() + ret = ast.literal_eval(ret) + if ret['status'] == 'success': + #logging.info('return:{0}'.format(ret)) + try: + ret = ret['data']['result'][0]['value'] + except: + ret = None + else: + ret = None return ret def start_Prometheus(self, port=9090): @@ -222,12 +456,25 @@ class DCNetworkMonitor(): "--rm", "-p", "{0}:9090".format(port), "-v", "{0}/prometheus.yml:/etc/prometheus/prometheus.yml".format(os.path.dirname(os.path.abspath(__file__))), + "-v", "{0}/profile.rules:/etc/prometheus/profile.rules".format(os.path.dirname(os.path.abspath(__file__))), "--name", "prometheus", "prom/prometheus" ] logging.info('Start Prometheus container {0}'.format(cmd)) return Popen(cmd) + def start_PushGateway(self, port=9091): + cmd = ["docker", + "run", + "-d", + "-p", "{0}:9091".format(port), + "--name", "pushgateway", + "prom/pushgateway" + ] + + logging.info('Start Prometheus Push Gateway container {0}'.format(cmd)) + return Popen(cmd) + def start_cadvisor(self, port=8090): cmd = ["docker", "run", @@ -247,13 +494,22 @@ class DCNetworkMonitor(): # stop the monitoring thread self.start_monitoring = False self.monitor_thread.join() + self.monitor_flow_thread.join() + ''' if self.prometheus_process is not None: logging.info('stopping prometheus container') self.prometheus_process.terminate() self.prometheus_process.kill() self._stop_container('prometheus') + if self.pushgateway_process is not None: + logging.info('stopping pushgateway container') + self.pushgateway_process.terminate() + self.pushgateway_process.kill() + self._stop_container('pushgateway') + ''' + if self.cadvisor_process is not None: logging.info('stopping cadvisor container') self.cadvisor_process.terminate() @@ -281,4 +537,33 @@ class DCNetworkMonitor(): name] Popen(cmd).wait() + def profile(self, mgmt_ip, rate, input_ip, vnf_uuid ): + + ssh = paramiko.SSHClient() + ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) + #ssh.connect(mgmt_ip, username='steven', password='test') + ssh.connect(mgmt_ip, username='root', password='root') + + iperf_cmd = 'iperf -c {0} -u -l18 -b{1}M -t1000 &'.format(input_ip, rate) + if rate > 0: + stdin, stdout, stderr = ssh.exec_command(iperf_cmd) + + start_time = time.time() + query_cpu = '(sum(rate(container_cpu_usage_seconds_total{{id="/docker/{0}"}}[{1}s])))'.format(vnf_uuid, 1) + while (time.time() - start_time) < 15: + data = self.query_Prometheus(query_cpu) + # logging.info('rate: {1} data:{0}'.format(data, rate)) + gevent.sleep(0) + time.sleep(1) + + query_cpu2 = '(sum(rate(container_cpu_usage_seconds_total{{id="/docker/{0}"}}[{1}s])))'.format(vnf_uuid, 8) + cpu_load = float(self.query_Prometheus(query_cpu2)[1]) + output = 'rate: {1}Mbps; cpu_load: {0}%'.format(round(cpu_load * 100, 2), rate) + output_line = output + logging.info(output_line) + + stop_iperf = 'pkill -9 iperf' + stdin, stdout, stderr = ssh.exec_command(stop_iperf) + + return output_line