diff --git a/clmctest/monitoring/LineProtocolGenerator.py b/clmctest/monitoring/LineProtocolGenerator.py
index 1b19c3c50717b1d09f2db9fcac742fd77d0153a9..213e84da0fff40208d621de5597bca3711ba4a7e 100644
--- a/clmctest/monitoring/LineProtocolGenerator.py
+++ b/clmctest/monitoring/LineProtocolGenerator.py
@@ -94,6 +94,54 @@ def _getNSTime(time):
return timestamp
+def generate_mc_service_config( mcMeasurement, stateTimeStats, time ):
+
+ validStats = validate_state_time_stats( stateTimeStats )
+
+ result = [{ "measurement" : mcMeasurement,
+ "fields" :
+ { "stopped" : validStats['stopped'],
+ "avg_stopped" : validStats['avg_stopped'],
+ "starting" : validStats['starting'],
+ "avg_starting" : validStats['avg_starting'],
+ "running" : validStats['running'],
+ "avg_running" : validStats['avg_running'],
+ "stopping" : validStats['stopping'],
+ "avg_stopping" : validStats['avg_stopping']
+ },
+ "time" : _getNSTime(time) }]
+
+ return result
+
+def validate_state_time_stats( stateTimeStats ):
+
+ if ( not 'stopped' in stateTimeStats ):
+ stateTimeStats['stopped'] = 0.0
+
+ if ( not 'avg_stopped' in stateTimeStats ):
+ stateTimeStats['avg_stopped'] = 0.0
+
+ if ( not 'starting' in stateTimeStats ):
+ stateTimeStats['starting'] = 0.0
+
+ if ( not 'avg_starting' in stateTimeStats ):
+ stateTimeStats['avg_starting'] = 0.0
+
+ if ( not 'running' in stateTimeStats ):
+ stateTimeStats['running'] = 0.0
+
+ if ( not 'avg_running' in stateTimeStats ):
+ stateTimeStats['avg_running'] = 0.0
+
+ if ( not 'stopping' in stateTimeStats ):
+ stateTimeStats['stopping'] = 0.0
+
+ if ( not 'avg_stopping' in stateTimeStats ):
+ stateTimeStats['avg_stopping'] = 0.0
+
+ return stateTimeStats
+
+
# DEPRECATED
# ____________________________________________________________________________
diff --git a/clmctest/monitoring/StreamingSim.py b/clmctest/monitoring/StreamingSim.py
index 223caf72cefe8a1b24ba573f35067ca0f3fc2300..a7d8d9ce3aa74c4ec5e8be46dd64e36d704e9c85 100644
--- a/clmctest/monitoring/StreamingSim.py
+++ b/clmctest/monitoring/StreamingSim.py
@@ -5,7 +5,7 @@ import time
import urllib.parse
import pytest
import random
-import sys
+import sys, getopt
from influxdb import InfluxDBClient
# Simulation parameters
@@ -23,6 +23,8 @@ AGENT2_URL = 'http://172.23.1.22:8186'
class Sim(object):
"""
+
+
Simulator for services
"""
@@ -75,6 +77,10 @@ class Sim(object):
# endpoint state->mu, sigma, secs normal distribution
config_delay_dist = {"placing": [10, 0.68], "booting": [10, 0.68], "connecting": [10, 0.68]}
+ # Simulation configuration of the media component (MC) state changes
+ # "MC state", [average (sec), stddev]
+ mc_config_delay_dist = { "stopped":[1, 0.68], "starting": [5, 0.68], "running":[1, 0.68], "stopping": [2, 0.68]}
+
print("\nSimulation started. Generating data...")
# Place endpoints
@@ -99,6 +105,32 @@ class Sim(object):
max_delay = max(delay_time, max_delay)
sim_time += max_delay
+ # move mpegdash_service media component state from 'stopped' to 'starting'
+ max_delay = 0
+ for ip_endpoint in ip_endpoints:
+ agent_url = urllib.parse.urlparse(ip_endpoint["agent_url"])
+ agent_db_client = InfluxDBClient(host=agent_url.hostname, port=agent_url.port, database=self.influx_db_name, timeout=10)
+ delay_avg = mc_config_delay_dist['stopped'][0]
+ delay_std = delay_avg * mc_config_delay_dist['stopped'][1]
+
+ delay_time = self._changeMCState(agent_db_client, sim_time, "mpegdash_service_config", delay_avg, delay_std, 0.7, 'stopped', 'starting')
+ max_delay = max(delay_time, max_delay)
+
+ sim_time += max_delay
+
+ # move mpegdash_service media component state from 'starting' to 'running'
+ max_delay = 0
+ for ip_endpoint in ip_endpoints:
+ agent_url = urllib.parse.urlparse(ip_endpoint["agent_url"])
+ agent_db_client = InfluxDBClient(host=agent_url.hostname, port=agent_url.port, database=self.influx_db_name, timeout=10)
+ delay_avg = mc_config_delay_dist['starting'][0]
+ delay_std = delay_avg * mc_config_delay_dist['starting'][1]
+
+ delay_time = self._changeMCState(agent_db_client, sim_time, "mpegdash_service_config", delay_avg, delay_std, 0.7, 'starting', 'running')
+ max_delay = max(delay_time, max_delay)
+
+ sim_time += max_delay
+
# Connect endpoints
max_delay = 0
for ip_endpoint in ip_endpoints:
@@ -174,7 +206,42 @@ class Sim(object):
# remove requests processed off the queue
ip_endpoint['request_queue'] -= int(requests_processed)
+ # update mpegdash_service media component state (continuously 'running')
+ state_stats = {}
+ state_stats['running'] = float(TICK_TIME)
+ state_stats['avg_running'] = float(TICK_TIME)
+ agent_db_client.write_points(lp.generate_mc_service_config("mpegdash_service_config",state_stats,sim_time))
+
sim_time += TICK_TIME
+
+ # Simulate tear-down of media components
+ # move mpegdash_service media component state from 'running' to 'stopping'
+ max_delay = 0
+ for ip_endpoint in ip_endpoints:
+ agent_url = urllib.parse.urlparse(ip_endpoint["agent_url"])
+ agent_db_client = InfluxDBClient(host=agent_url.hostname, port=agent_url.port, database=self.influx_db_name, timeout=10)
+ delay_avg = mc_config_delay_dist['running'][0]
+ delay_std = delay_avg * mc_config_delay_dist['running'][1]
+
+ delay_time = self._changeMCState(agent_db_client, sim_time, "mpegdash_service_config", delay_avg, delay_std, 0.7, 'running', 'stopping')
+ max_delay = max(delay_time, max_delay)
+
+ sim_time += max_delay
+
+ # move mpegdash_service media component state from 'stopping' to 'stopped'
+ max_delay = 0
+ for ip_endpoint in ip_endpoints:
+ agent_url = urllib.parse.urlparse(ip_endpoint["agent_url"])
+ agent_db_client = InfluxDBClient(host=agent_url.hostname, port=agent_url.port, database=self.influx_db_name, timeout=10)
+ delay_avg = mc_config_delay_dist['stopping'][0]
+ delay_std = delay_avg * mc_config_delay_dist['stopping'][1]
+
+ delay_time = self._changeMCState(agent_db_client, sim_time, "mpegdash_service_config", delay_avg, delay_std, 0.7, 'stopping', 'stopped')
+ max_delay = max(delay_time, max_delay)
+
+ sim_time += max_delay
+
+ # End simulation
end_time = sim_time
print("Simulation Finished. Start time {0}. End time {1}. Total time {2}".format(start_time, end_time,
end_time - start_time))
@@ -223,39 +290,35 @@ class Sim(object):
return delay_time
+ @staticmethod
+ def _changeMCState(agent_db_client, sim_time, mc_measurement, mu, sigma, trans_ratio, transition_state, next_state):
+ """
+ Send INFLUX data indicating the time taken to transition to a new state
-@pytest.fixture(scope='module')
-def run_simulation_fixture(streaming_sim_config):
- """
- A fixture, which checks if the the DB has been created, if not it runs the simulator with a 10 seconds timeout after that
- """
+ Returns the total time delay for the state change
+ """
- influx_db_url = "http://" + streaming_sim_config['hosts'][0]['ip_address'] + ":8086"
- agent1_url = "http://" + streaming_sim_config['hosts'][1]['ip_address'] + ":8186"
- agent2_url = "http://" + streaming_sim_config['hosts'][2]['ip_address'] + ":8186"
+ # Calculate a randomized total time for the transition (and calculate relative ratios of time in transition and next state)
+ total_delay_time = max( random.normalvariate(mu, sigma), 1 ) # minimum total delay is 1 second
+ transition_time = total_delay_time * trans_ratio
+ next_state_time = total_delay_time - transition_time
- global INFLUX_DB_URL
- global INFLUX_DB_NAME
- global SIMULATION_TIME_SEC
- global AGENT1_URL
- global AGENT2_URL
+ mc_states = {}
+
+ # Report time in transition (and add the same as average)
+ mc_states[transition_state] = transition_time
+ mc_states["avg_" +transition_state] = transition_time
- simulator = Sim(influx_db_url, INFLUX_DB_NAME, agent1_url, agent2_url)
- dbs = simulator.db_client.get_list_database()
- dbs = [db.get("name") for db in dbs]
+ # Report time remaining in the next state (adding the same as the average)
+ mc_states[next_state] = next_state_time
+ mc_states["avg_" +next_state] = next_state_time
- # This check needed to be disabled as the CLMCMetrics database is always created when
- # the test starts, irrespective of whether this is the 1st time or not
-# if INFLUX_DB_NAME not in dbs:
- simulator.reset()
- simulator.run(SIMULATION_TIME_SEC)
+ agent_db_client.write_points(lp.generate_mc_service_config(mc_measurement, mc_states, sim_time))
- print("10 seconds timeout is given so that the data could properly be inserted into the database.")
- import time
- time.sleep(10)
+ return total_delay_time
-def run_simulation(generate=True):
+def run_simulation(generate=True, sTime=3600):
"""
A method which runs the data generation simulator
:param generate: True for generating data, False for deleting the DB (optional argument, if not given, default value True is used)
@@ -267,6 +330,8 @@ def run_simulation(generate=True):
global AGENT1_URL
global AGENT2_URL
+ SIMULATION_TIME_SEC = sTime
+
simulator = Sim(INFLUX_DB_URL, INFLUX_DB_NAME, AGENT1_URL, AGENT2_URL)
if generate:
@@ -275,18 +340,36 @@ def run_simulation(generate=True):
else:
simulator.db_client.drop_database(simulator.influx_db_name)
-
if __name__ == "__main__":
"""
The main entry for this module. Code here is executed only if the StreamingSim.py file is executed,
but not when it's imported in another module
"""
- # check if there are any command line arguments given when executing the module
- if len(sys.argv) > 1:
- # if CLI argument '-c' is set when executing the script, the influx db will be deleted instead of generating data
- option = str(sys.argv[1]) != "-c"
- run_simulation(generate=option)
+ # Default options for simulation (generate data and simulation time of 3600 seconds)
+ genOpt = True
+ simTime = 60 * 60
+
+ # Try get some options
+ try:
+ opts, args = getopt.getopt( sys.argv[1:], "c:t:", ['clear','time='])
+
+ except getopt.GetoptError:
+ print( 'StreamingSim.py -c -t <seconds>' )
+ sys.exit(2)
+
+ # Apply options, if any
+ for opt, arg in opts:
+ if opt in ( '-c','--clear' ):
+ genOpt = False
+
+ elif opt in ('-t','--time'):
+ simTime = arg
+
+ if ( genOpt == True ):
+ print( "Running simulation to generate data" )
+ print( "Time period for this simulation: " + str(simTime) + " seconds" )
else:
- # no argument is given to the function call, hence the default value True is used
- run_simulation()
+ print( "Clearing simulation data" )
+
+ run_simulation( genOpt, simTime )
diff --git a/clmctest/monitoring/conftest.py b/clmctest/monitoring/conftest.py
index 039615224e17aa35ef1cd331425ab9eae55036a5..b6af171be569615762b0c1a94079ac4c1d441d7b 100644
--- a/clmctest/monitoring/conftest.py
+++ b/clmctest/monitoring/conftest.py
@@ -4,6 +4,7 @@ import pytest
import yaml
import pkg_resources
from influxdb import InfluxDBClient
+from clmctest.monitoring.StreamingSim import Sim
@pytest.fixture(scope="module")
@@ -21,9 +22,8 @@ def streaming_sim_config():
data_loaded = yaml.load(stream)
return data_loaded
-
@pytest.fixture(params=[{'database': 'CLMCMetrics'}], scope='module')
-def influxdb(streaming_sim_config, request):
+def influx_db(streaming_sim_config, request):
"""
Creates an Influx DB client for the CLMC metrics database
@@ -32,7 +32,21 @@ def influxdb(streaming_sim_config, request):
:return: the created Influx DB client
"""
- db = InfluxDBClient(host=streaming_sim_config['hosts'][0]['ip_address'], port=8086, database=request.param['database'], timeout=10)
- db.drop_database(request.param['database'])
-
- return db
+ return InfluxDBClient(host=streaming_sim_config['hosts'][0]['ip_address'], port='8086', database=request.param['database'], timeout=10)
+
+@pytest.fixture(scope="module")
+def simulator(streaming_sim_config):
+
+ influx_url = "http://" + streaming_sim_config['hosts'][0]['ip_address'] + ":8086"
+ influx_db_name = streaming_sim_config['hosts'][1]['database_name']
+ agent1_url = "http://" + streaming_sim_config['hosts'][1]['ip_address'] + ":8186"
+ agent2_url = "http://" + streaming_sim_config['hosts'][2]['ip_address'] + ":8186"
+
+ simulator = Sim( influx_url, influx_db_name, agent1_url, agent2_url )
+
+ dbs = simulator.db_client.get_list_database()
+ dbs = [db.get("name") for db in dbs]
+
+ simulator.reset()
+
+ return simulator
diff --git a/clmctest/monitoring/test_simresults.py b/clmctest/monitoring/test_simresults.py
index 6940560481c30a6d145a52412b7907da4842a5ae..8953a58f5e66bf57ee496ab4d5be274668e0d915 100644
--- a/clmctest/monitoring/test_simresults.py
+++ b/clmctest/monitoring/test_simresults.py
@@ -1,13 +1,19 @@
#!/usr/bin/python3
import pytest
-from clmctest.monitoring.StreamingSim import run_simulation_fixture
+import time
class TestSimulation(object):
"""
A testing class used to group all the tests related to the simulation data
"""
+ @pytest.fixture(scope='class')
+ def run_simulator( self, simulator ):
+ simulator.run( 3600 )
+
+ print( "Waiting for INFLUX to finish receiving simulation data..." )
+ time.sleep( 10 ) # wait for data to finish arriving at the INFLUX database
@pytest.mark.parametrize("query, expected_result", [
('SELECT count(*) FROM "CLMCMetrics"."autogen"."cpu_usage"',
@@ -19,24 +25,28 @@ class TestSimulation(object):
('SELECT count(*) FROM "CLMCMetrics"."autogen"."net_port_io"',
{"time": "1970-01-01T00:00:00Z", "count_RX_BYTES_PORT_M": 7200, "count_TX_BYTES_PORT_M": 7200}),
('SELECT count(*) FROM "CLMCMetrics"."autogen"."vm_res_alloc"',
- {"time": "1970-01-01T00:00:00Z", "count_cpu": 12, "count_memory": 12, "count_storage": 12})
+ {"time": "1970-01-01T00:00:00Z", "count_cpu": 12, "count_memory": 12, "count_storage": 12}),
+
+ ('SELECT count(*) FROM "CLMCMetrics"."autogen"."mpegdash_service_config" WHERE ipendpoint=\'adaptive_streaming_I1_apache1\'',
+ {"time" : "1970-01-01T00:00:00Z", "count_avg_running" : 3604, "count_avg_starting" : 3604, "count_avg_stopped" : 3604, "count_avg_stopping" : 3604, "count_running" : 3604, "count_starting" : 3604, "count_stopped" : 3604, "count_stopping" : 3604}),
+ ('SELECT count(*) FROM "CLMCMetrics"."autogen"."mpegdash_service_config" WHERE ipendpoint=\'adaptive_streaming_I1_apache2\'',
+ {"time" : "1970-01-01T00:00:00Z", "count_avg_running" : 3604, "count_avg_starting" : 3604, "count_avg_stopped" : 3604, "count_avg_stopping" : 3604, "count_running" : 3604, "count_starting" : 3604, "count_stopped" : 3604, "count_stopping" : 3604}),
])
- def test_simulation(self, query, expected_result, influxdb, run_simulation_fixture):
+ def test_simulation( self, run_simulator, influx_db, query, expected_result ):
"""
This is the entry point of the test. This method will be found and executed when the module is ran using pytest
:param query: the query to execute (value obtained from the pytest parameter decorator)
:param expected_result: the result expected from executing the query (value obtained from the pytest parameter decorator)
- :param influxdb the import db client fixture - imported from contest.py
+ :param influx_db the import db client fixture - imported from contest.py
:param run_simulation_fixture: the imported fixture to use to generate the testing data - the return value of the fixture is not needed in this case
"""
# pytest automatically goes through all queries under test, declared in the parameters decorator
-
print("\n") # prints a blank line for formatting purposes
# the raise_errors=False argument is given so that we could actually test that the DB didn't return any errors instead of raising an exception
- query_result = influxdb.query(query, raise_errors=False)
+ query_result = influx_db.query(query, raise_errors=False)
# test the error attribute of the result is None, that is no error is returned from executing the DB query
assert query_result.error is None, "An error was encountered while executing query {0}.".format(query)