X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=src%2Femuvim%2Fdcemulator%2Fmonitoring.py;h=9cf2a3b59f015cde473b12e39590bef1ba05c653;hb=c721f28bf74f3486ee7ca921be485233f5cad44c;hp=b3ec7ee1be65dd62e6c0def94e76966bd6c0220f;hpb=61fd52859c8212626480d66c0795d399be37d0a9;p=osm%2Fvim-emu.git diff --git a/src/emuvim/dcemulator/monitoring.py b/src/emuvim/dcemulator/monitoring.py index b3ec7ee..9cf2a3b 100755 --- a/src/emuvim/dcemulator/monitoring.py +++ b/src/emuvim/dcemulator/monitoring.py @@ -1,44 +1,72 @@ -__author__ = 'Administrator' +""" +Copyright (c) 2015 SONATA-NFV +ALL RIGHTS RESERVED. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. + +Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION] +nor the names of its contributors may be used to endorse or promote +products derived from this software without specific prior written +permission. + +This work has been performed in the framework of the SONATA project, +funded by the European Commission under Grant number 671517 through +the Horizon 2020 and 5G-PPP programmes. The authors would like to +acknowledge the contributions of their colleagues of the SONATA +partner consortium (www.sonata-nfv.eu). +""" -import urllib2 import logging +import sys from mininet.node import OVSSwitch import ast import time 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 +from subprocess import Popen import os + 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 - # 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) - - # helper variables to calculate the metrics - self.pushgateway = 'localhost: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() self.prom_tx_packet_count = Gauge('sonemu_tx_count_packets', 'Total number of packets sent', - ['vnf_name', 'vnf_interface'], registry=self.registry) + ['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'], registry=self.registry) + ['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'], registry=self.registry) + ['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'], registry=self.registry) + ['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} @@ -57,17 +85,112 @@ class DCNetworkMonitor(): } ''' 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 + # cAdvisor, Prometheus pushgateway are started as external container, to gather monitoring metric in son-emu self.pushgateway_process = self.start_PushGateway() - self.prometheus_process = self.start_Prometheus() - self.cadvisor_process = self.start_cadvisor() + 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: + if link_dict[link]['src_port_id'] == vnf_interface: + # found the right link and connected switch + 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,): + + # 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: + + 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: + 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) + + 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'): @@ -87,11 +210,9 @@ class DCNetworkMonitor(): 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)) - 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: @@ -127,7 +248,6 @@ class DCNetworkMonitor(): network_metric['metric_key'] = metric self.monitor_lock.acquire() - self.network_metrics.append(network_metric) self.monitor_lock.release() @@ -139,7 +259,14 @@ 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): + + # 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 \ @@ -154,7 +281,7 @@ class DCNetworkMonitor(): #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') @@ -164,12 +291,11 @@ class DCNetworkMonitor(): 0x7f353447fd10 >} """ logging.info('{0}'.format(collector._metrics.values())) - #if self.prom_metrics[metric_dict['metric_key']] - if (vnf_name, vnf_interface) in collector._metrics: + + 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) + 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')) @@ -186,8 +312,60 @@ class DCNetworkMonitor(): 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) + + 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 + 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'] + data['cookie_mask'] = COOKIE_MASK + + 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) + 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() + time.sleep(1) - # get all metrics defined in the list and export it to Prometheus def get_network_metrics(self): while self.start_monitoring: @@ -200,12 +378,17 @@ class DCNetworkMonitor(): for dpid in dpid_set: # query Ryu - ret = self.REST_cmd('stats/port', dpid) - port_stat_dict = ast.literal_eval(ret) + ret = self.net.ryu_REST('stats/port', dpid=dpid) + 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)] - #logging.info('1set prom packets:{0} '.format(self.network_metrics)) + for metric_dict in metric_list: self.set_network_metric(metric_dict, port_stat_dict) @@ -227,47 +410,68 @@ class DCNetworkMonitor(): if int(port_stat['port_no']) == int(mon_port): port_uptime = port_stat['duration_sec'] + port_stat['duration_nsec'] * 10 ** (-9) this_measurement = int(port_stat[metric_key]) - #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_name, 'vnf_interface':vnf_interface}).\ + 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) + # also the rate is calculated here, but not used for now + # (rate can be easily queried from prometheus also) if previous_monitor_time <= 0 or previous_monitor_time >= port_uptime: metric_dict['previous_measurement'] = int(port_stat[metric_key]) metric_dict['previous_monitor_time'] = port_uptime # do first measurement - #logging.info('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']) 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 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): + # vnf tx is the datacenter switch rx and vice-versa + 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'] + + 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 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) + 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 REST_cmd(self, prefix, dpid): - url = self.REST_api + '/' + str(prefix) + '/' + str(dpid) - req = urllib2.Request(url) - ret = urllib2.urlopen(req).read() - return ret def start_Prometheus(self, port=9090): # prometheus.yml configuration file is located in the same directory as this file @@ -283,19 +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", @@ -305,6 +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)) @@ -314,23 +520,26 @@ class DCNetworkMonitor(): # stop the monitoring thread self.start_monitoring = False 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=''): @@ -344,14 +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() -