X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=src%2Femuvim%2Fdcemulator%2Fmonitoring.py;h=9cf2a3b59f015cde473b12e39590bef1ba05c653;hb=c721f28bf74f3486ee7ca921be485233f5cad44c;hp=89d82ba52fc6e2091972f0b0944512543d1036b8;hpb=e131bf5fefb90aadfe698dd72126cd2fdfe2fb7a;p=osm%2Fvim-emu.git diff --git a/src/emuvim/dcemulator/monitoring.py b/src/emuvim/dcemulator/monitoring.py index 89d82ba..9cf2a3b 100755 --- a/src/emuvim/dcemulator/monitoring.py +++ b/src/emuvim/dcemulator/monitoring.py @@ -27,6 +27,7 @@ partner consortium (www.sonata-nfv.eu). """ import logging +import sys from mininet.node import OVSSwitch import ast import time @@ -43,25 +44,18 @@ logging.basicConfig(level=logging.INFO) class to read openflow stats from the Ryu controller of the DCNetwork """ +PUSHGATEWAY_PORT = 9091 +# we cannot use port 8080 because ryu-ofrest api is already using that one +CADVISOR_PORT = 8081 + +COOKIE_MASK = 0xffffffff + class DCNetworkMonitor(): def __init__(self, net): self.net = net - # TODO: these global variables should be part of a config file? - ''' - # prometheus is started outside of son-emu - 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 - # pushgateway is started outside of son-emu and son-emu is started with net=host - # so localhost:9091 works - self.pushgateway = 'localhost:9091' - # when sdk is started with docker-compose, we could use - # self.pushgateway = 'pushgateway:9091' - # Start up the server to expose the metrics to Prometheus - #start_http_server(8000) + # pushgateway address + self.pushgateway = 'localhost:{0}'.format(PUSHGATEWAY_PORT) # supported Prometheus metrics self.registry = CollectorRegistry() @@ -104,10 +98,10 @@ class DCNetworkMonitor(): self.monitor_flow_thread.start() # helper tools - # Prometheus pushgateway and DB are started as external contianer, outside of son-emu - #self.pushgateway_process = self.start_PushGateway() - #self.prometheus_process = self.start_Prometheus() - self.cadvisor_process = self.start_cadvisor() + # cAdvisor, Prometheus pushgateway are started as external container, to gather monitoring metric in son-emu + self.pushgateway_process = self.start_PushGateway() + 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): @@ -167,7 +161,15 @@ class DCNetworkMonitor(): logging.exception("setup_metric error.") return ex.message - def stop_flow(self, vnf_name, vnf_interface=None, metric=None, cookie=0): + def stop_flow(self, vnf_name, vnf_interface=None, metric=None, cookie=0,): + + # check if port is specified (vnf:port) + if vnf_interface is None and metric is not 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'] + 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: @@ -187,6 +189,8 @@ class DCNetworkMonitor(): 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) + return 'Error stopping monitoring flow: {0} on {1}:{2}'.format(metric, vnf_name, vnf_interface) + # first set some parameters, before measurement can start def setup_metric(self, vnf_name, vnf_interface=None, metric='tx_packets'): @@ -244,7 +248,6 @@ class DCNetworkMonitor(): network_metric['metric_key'] = metric self.monitor_lock.acquire() - self.network_metrics.append(network_metric) self.monitor_lock.release() @@ -258,6 +261,13 @@ class DCNetworkMonitor(): def stop_metric(self, vnf_name, vnf_interface=None, metric=None): + # check if port is specified (vnf:port) + if vnf_interface is None and metric is not 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'] + for metric_dict in self.network_metrics: if metric_dict['vnf_name'] == vnf_name and metric_dict['vnf_interface'] == vnf_interface \ and metric_dict['metric_key'] == metric: @@ -319,8 +329,10 @@ class DCNetworkMonitor(): logging.info('Stopped monitoring vnf: {0}'.format(vnf_name)) return 'Stopped monitoring: {0}'.format(vnf_name) + return 'Error stopping monitoring metric: {0} on {1}:{2}'.format(metric, vnf_name, vnf_interface) + - # get all metrics defined in the list and export it to Prometheus +# get all metrics defined in the list and export it to Prometheus def get_flow_metrics(self): while self.start_monitoring: @@ -330,6 +342,7 @@ class DCNetworkMonitor(): data = {} data['cookie'] = flow_dict['cookie'] + data['cookie_mask'] = COOKIE_MASK if 'tx' in flow_dict['metric_key']: data['match'] = {'in_port':flow_dict['mon_port']} @@ -339,9 +352,15 @@ class DCNetworkMonitor(): # query Ryu ret = self.net.ryu_REST('stats/flow', dpid=flow_dict['switch_dpid'], data=data) - flow_stat_dict = ast.literal_eval(ret) + if isinstance(ret, dict): + flow_stat_dict = ret + elif isinstance(ret, basestring): + flow_stat_dict = ast.literal_eval(ret.rstrip()) + else: + flow_stat_dict = None logging.debug('received flow stat:{0} '.format(flow_stat_dict)) + self.set_flow_metric(flow_dict, flow_stat_dict) self.monitor_flow_lock.release() @@ -360,7 +379,12 @@ class DCNetworkMonitor(): # query Ryu ret = self.net.ryu_REST('stats/port', dpid=dpid) - port_stat_dict = ast.literal_eval(ret) + if isinstance(ret, dict): + port_stat_dict = ret + elif isinstance(ret, basestring): + port_stat_dict = ast.literal_eval(ret.rstrip()) + else: + port_stat_dict = None metric_list = [metric_dict for metric_dict in self.network_metrics if int(metric_dict['switch_dpid'])==int(dpid)] @@ -401,11 +425,10 @@ class DCNetworkMonitor(): metric_dict['previous_measurement'] = int(port_stat[metric_key]) metric_dict['previous_monitor_time'] = port_uptime # do first measurement - time.sleep(1) - self.monitor_lock.release() - - metric_rate = self.get_network_metrics() - return metric_rate + #time.sleep(1) + #self.monitor_lock.release() + # rate cannot be calculated yet (need a first measurement) + metric_rate = None else: time_delta = (port_uptime - metric_dict['previous_monitor_time']) @@ -413,9 +436,11 @@ class DCNetworkMonitor(): metric_dict['previous_measurement'] = this_measurement metric_dict['previous_monitor_time'] = port_uptime - return metric_rate + return logging.exception('metric {0} not found on {1}:{2}'.format(metric_key, vnf_name, vnf_interface)) + logging.exception('monport:{0}, dpid:{1}'.format(mon_port, switch_dpid)) + logging.exception('port dict:{0}'.format(port_stat_dict)) 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): @@ -428,19 +453,24 @@ class DCNetworkMonitor(): 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'] + counter = 0 + for flow_stat in flow_stat_dict[str(switch_dpid)]: + 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) + # flow_uptime disabled for now (can give error) + #flow_stat = flow_stat_dict[str(switch_dpid)][0] + #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) + try: + pushadd_to_gateway(self.pushgateway, job='sonemu-SDNcontroller', registry=self.registry) + except Exception, e: + logging.warning("Pushgateway not reachable: {0} {1}".format(Exception, e)) def start_Prometheus(self, port=9090): @@ -457,19 +487,20 @@ class DCNetworkMonitor(): logging.info('Start Prometheus container {0}'.format(cmd)) return Popen(cmd) - def start_PushGateway(self, port=9091): + def start_PushGateway(self, port=PUSHGATEWAY_PORT): cmd = ["docker", "run", "-d", "-p", "{0}:9091".format(port), "--name", "pushgateway", + "--label", 'com.containernet=""', "prom/pushgateway" ] logging.info('Start Prometheus Push Gateway container {0}'.format(cmd)) return Popen(cmd) - def start_cadvisor(self, port=8090): + def start_cAdvisor(self, port=CADVISOR_PORT): cmd = ["docker", "run", "--rm", @@ -479,6 +510,7 @@ class DCNetworkMonitor(): "--volume=/var/lib/docker/:/var/lib/docker:ro", "--publish={0}:8080".format(port), "--name=cadvisor", + "--label",'com.containernet=""', "google/cadvisor:latest" ] logging.info('Start cAdvisor container {0}'.format(cmd)) @@ -490,24 +522,24 @@ class DCNetworkMonitor(): self.monitor_thread.join() self.monitor_flow_thread.join() + # these containers are used for monitoring but are started now outside of son-emu ''' 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.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() - self.cadvisor_process.kill() + #self.cadvisor_process.terminate() + #self.cadvisor_process.kill() self._stop_container('cadvisor') def switch_tx_rx(self,metric=''): @@ -521,13 +553,10 @@ class DCNetworkMonitor(): return metric def _stop_container(self, name): - cmd = ["docker", - "stop", - name] - Popen(cmd).wait() cmd = ["docker", "rm", + "-f", name] Popen(cmd).wait()