X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=src%2Femuvim%2Fdcemulator%2Fmonitoring.py;h=ba04771c5107d092700c570460dd2791c204b7e4;hb=36afe6369a9b6178525057a524a27fde59398b00;hp=54e79869de4c5305f6fafd6a74cdd1956b39cd15;hpb=a2a1ca80a47ccac410cc8750f3e3bd942f820afa;p=osm%2Fvim-emu.git diff --git a/src/emuvim/dcemulator/monitoring.py b/src/emuvim/dcemulator/monitoring.py index 54e7986..ba04771 100755 --- a/src/emuvim/dcemulator/monitoring.py +++ b/src/emuvim/dcemulator/monitoring.py @@ -1,16 +1,43 @@ -__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) """ @@ -20,25 +47,31 @@ 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) + # 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' - # Start up the server to expose the metrics to Prometheus. - #start_http_server(8000) + # when sdk is started with docker-compose, we could use + # self.pushgateway = 'pushgateway:9091' + # 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 +90,110 @@ 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 - self.pushgateway_process = self.start_PushGateway() - self.prometheus_process = self.start_Prometheus() - self.cadvisor_process = self.start_cadvisor() + # cAdvisor, Prometheus pushgateway and DB are started as external container, outside of son-emu + + + # 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 +213,9 @@ 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: @@ -139,7 +263,14 @@ 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 +285,7 @@ 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 +295,11 @@ 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 +316,63 @@ 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'] = 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) + 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 +385,12 @@ 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 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) @@ -227,31 +412,30 @@ 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 + else: time_delta = (port_uptime - metric_dict['previous_monitor_time']) metric_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_dict['previous_measurement'] = this_measurement metric_dict['previous_monitor_time'] = port_uptime @@ -260,12 +444,34 @@ class DCNetworkMonitor(): 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 = 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_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 @@ -274,6 +480,7 @@ 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" ] @@ -311,7 +518,10 @@ 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() @@ -329,6 +539,7 @@ class DCNetworkMonitor(): self.cadvisor_process.terminate() self.cadvisor_process.kill() self._stop_container('cadvisor') + ''' def switch_tx_rx(self,metric=''): # when monitoring vnfs, the tx of the datacenter switch is actually the rx of the vnf @@ -351,4 +562,3 @@ class DCNetworkMonitor(): name] Popen(cmd).wait() -