def test_reset(self):
playertracker1 = PlayerTracker()
playertracker2 = PlayerTracker()
ids = playertracker1.get_player_ids()
self.assertEqual(1, len(ids))
playertracker1.clear()
ids = playertracker1.get_player_ids()
self.assertEqual(0, len(ids))
ids = playertracker2.get_player_ids()
self.assertEqual(0, len(ids))
def test_set_accept_player(self):
playertracker1 = PlayerTracker()
playertracker1.clear()
ids = playertracker1.get_player_ids()
self.assertEqual(0, len(ids))
playertracker1.set_accept_player(True)
playertracker1.add_player(1)
playertracker1.add_player(2)
playertracker1.set_accept_player(False)
ids = playertracker1.get_player_ids()
self.assertEqual(2, len(ids))
self.assertRaises(PlayerDelayedRegistrationException, playertracker1.add_player, 3)
ids = playertracker1.get_player_ids()
self.assertEqual(2, len(ids))
class Conductor:
__lock = threading.Lock()
def __init__(self, locktimeout=60, replication_lag_tolerance=100, apply_lag_tolerance=100, time_lag_tolerance=100, monitor_timeout=28800):
self.__player_trakcer = None
self.__replication_lag_tolerance = replication_lag_tolerance
self.__apply_lag_tolerance = apply_lag_tolerance
self.__time_lag_tolerance = time_lag_tolerance
self.__monitor_timeout = monitor_timeout
if not self.__lock.acquire(timeout=locktimeout):
raise ConductorTimeoutException()
self.__player_trakcer = PlayerTracker()
self.__player_trakcer.clear()
self.__player_trakcer.set_migration_in_process(True)
self.__broadcast_queue = Constants.BROADCAST_EXCHANGE
def __enter__(self):
return self
def __exit__(self, exc_type, value, tb):
if self.__player_trakcer:
self.__player_trakcer.set_migration_in_process(False)
if self.__lock.locked():
self.__lock.release()
def __del__(self):
if self.__player_trakcer:
self.__player_trakcer.set_migration_in_process(False)
if self.__lock.locked():
self.__lock.release()
def send_reset_players(self):
group_ids = self.__player_trakcer.get_player_ids()
if group_ids:
player_task.apply_async((Constants.COMMAND_RESET_PLAYERS, group_ids), exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_RESET_PLAYERS, None, group_ids)
for my_id in group_ids:
self.__player_trakcer.reset_player(my_id)
else:
logger.debug('Command[' + Constants.COMMAND_RESET_PLAYERS + '] was not sent because there is no registered players')
def accept_players(self):
self.__player_trakcer.set_accept_player(True)
def reject_players(self):
self.__player_trakcer.set_accept_player(False)
def find_players(self):
player_task.apply_async((Constants.COMMAND_REGISTER_PLAYER, None), exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_REGISTER_PLAYER, None, None)
def get_player_ids(self):
return self.__player_trakcer.get_player_ids()
def grouping_players(self):
player_ids = self.__player_trakcer.get_player_ids()
if player_ids:
for idx in range(len(player_ids)):
# set group A for "0" or group B for "1"
self.__player_trakcer.set_player_group(player_ids[idx], Constants.PLAYER_GROUP_A if idx % 2 == 0 else Constants.PLAYER_GROUP_B)
def send_disconnect_PGPool(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(player_group=player_group)
player_task.apply_async((Constants.COMMAND_DISCONNECT_PGPOOL, group_ids), exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_DISCONNECT_PGPOOL, player_group, group_ids)
def send_connect_PGPool(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(player_group=player_group)
player_task.apply_async((Constants.COMMAND_CONNECT_PGPOOL, group_ids), exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_CONNECT_PGPOOL, player_group, group_ids)
def send_stop_replication(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(player_group=player_group)
player_task.apply_async((Constants.COMMAND_STOP_REPLICATION, group_ids), exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_STOP_REPLICATION, player_group, group_ids)
def send_start_replication(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(player_group=player_group)
player_task.apply_async((Constants.COMMAND_START_REPLICATION, group_ids), exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_START_REPLICATION, player_group, group_ids)
def migrate(self, tenant=None):
return start_migrate_daily_delta(tenant=tenant)
def wait_PGPool_disconnected(self, player_group=None, timeout=30):
self.__wait_for_status(player_group, timeout, self.__player_trakcer.is_pgpool_disconnected)
def wait_PGPool_connected(self, player_group=None, timeout=30):
self.__wait_for_status(player_group, timeout, self.__player_trakcer.is_pgpool_connected)
def wait_replication_stopped(self, player_group=None, timeout=30):
self.__wait_for_status(player_group, timeout, self.__player_trakcer.is_replication_stopped)
def wait_replication_started(self, player_group=None, timeout=30):
self.__wait_for_status(player_group, timeout, self.__player_trakcer.is_replication_started)
def monitor_replication_status(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(player_group=player_group)
replication_monitor(group_ids, replication_lag_tolerance=self.__replication_lag_tolerance, apply_lag_tolerance=self.__apply_lag_tolerance, time_lag_tolerance=self.__time_lag_tolerance, timeout=self.__monitor_timeout)
def __wait_for_status(self, player_group, timeout, func):
group_ids = self.__player_trakcer.get_player_ids(player_group=player_group)
start_time = time.time()
for node_id in group_ids:
while not func(node_id):
if time.time() - start_time > timeout:
raise ConductorTimeoutException(func.__name__ + ' timeout')
time.sleep(1)
if group_ids:
logger.debug('function[' + func.__name__ + '] returned [' + ', '.join(str(x) for x in group_ids) + ']')
else:
logger.debug('function[' + func.__name__ + '] returned [None]')
@staticmethod
def __log(command, player_group, group_ids):
if group_ids is None:
group_ids = []
logger.debug('Sent command[' + command + '] to group name[' + (player_group if player_group else 'None') + '] ids[' + ', '.join(str(x) for x in group_ids) + ']')
def setUp(self):
playertracker1 = PlayerTracker()
playertracker1.clear()
playertracker1.set_accept_player(True)
playertracker1.add_player(123)
playertracker1.set_accept_player(False)
class Conductor:
__lock = threading.Lock()
def __init__(self,
locktimeout=60,
replication_lag_tolerance=100,
apply_lag_tolerance=100,
time_lag_tolerance=100,
monitor_timeout=28800):
self.__player_trakcer = None
self.__replication_lag_tolerance = replication_lag_tolerance
self.__apply_lag_tolerance = apply_lag_tolerance
self.__time_lag_tolerance = time_lag_tolerance
self.__monitor_timeout = monitor_timeout
if not self.__lock.acquire(timeout=locktimeout):
raise ConductorTimeoutException()
self.__player_trakcer = PlayerTracker()
self.__player_trakcer.clear()
self.__player_trakcer.set_migration_in_process(True)
self.__broadcast_queue = Constants.BROADCAST_EXCHANGE
def __enter__(self):
return self
def __exit__(self, exc_type, value, tb):
if self.__player_trakcer:
self.__player_trakcer.set_migration_in_process(False)
if self.__lock.locked():
self.__lock.release()
def __del__(self):
if self.__player_trakcer:
self.__player_trakcer.set_migration_in_process(False)
if self.__lock.locked():
self.__lock.release()
def send_reset_players(self):
group_ids = self.__player_trakcer.get_player_ids()
if group_ids:
player_task.apply_async(
(Constants.COMMAND_RESET_PLAYERS, group_ids),
exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_RESET_PLAYERS, None, group_ids)
for my_id in group_ids:
self.__player_trakcer.reset_player(my_id)
else:
logger.debug(
'Command[' + Constants.COMMAND_RESET_PLAYERS +
'] was not sent because there is no registered players')
def accept_players(self):
self.__player_trakcer.set_accept_player(True)
def reject_players(self):
self.__player_trakcer.set_accept_player(False)
def find_players(self):
player_task.apply_async(
(Constants.COMMAND_REGISTER_PLAYER, None),
exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_REGISTER_PLAYER, None, None)
def get_player_ids(self):
return self.__player_trakcer.get_player_ids()
def grouping_players(self):
player_ids = self.__player_trakcer.get_player_ids()
if player_ids:
for idx in range(len(player_ids)):
# set group A for "0" or group B for "1"
self.__player_trakcer.set_player_group(
player_ids[idx], Constants.PLAYER_GROUP_A if idx %
2 == 0 else Constants.PLAYER_GROUP_B)
def send_disconnect_PGPool(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(
player_group=player_group)
player_task.apply_async(
(Constants.COMMAND_DISCONNECT_PGPOOL, group_ids),
exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_DISCONNECT_PGPOOL, player_group,
group_ids)
def send_connect_PGPool(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(
player_group=player_group)
player_task.apply_async(
(Constants.COMMAND_CONNECT_PGPOOL, group_ids),
exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_CONNECT_PGPOOL, player_group, group_ids)
def send_stop_replication(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(
player_group=player_group)
player_task.apply_async(
(Constants.COMMAND_STOP_REPLICATION, group_ids),
exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_STOP_REPLICATION, player_group, group_ids)
def send_start_replication(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(
player_group=player_group)
player_task.apply_async(
(Constants.COMMAND_START_REPLICATION, group_ids),
exchange=self.__broadcast_queue) # @UndefinedVariable
self.__log(Constants.COMMAND_START_REPLICATION, player_group,
group_ids)
def migrate(self, tenant=None):
return start_migrate_daily_delta(tenant=tenant)
def wait_PGPool_disconnected(self, player_group=None, timeout=30):
self.__wait_for_status(player_group, timeout,
self.__player_trakcer.is_pgpool_disconnected)
def wait_PGPool_connected(self, player_group=None, timeout=30):
self.__wait_for_status(player_group, timeout,
self.__player_trakcer.is_pgpool_connected)
def wait_replication_stopped(self, player_group=None, timeout=30):
self.__wait_for_status(player_group, timeout,
self.__player_trakcer.is_replication_stopped)
def wait_replication_started(self, player_group=None, timeout=30):
self.__wait_for_status(player_group, timeout,
self.__player_trakcer.is_replication_started)
def monitor_replication_status(self, player_group=None):
group_ids = self.__player_trakcer.get_player_ids(
player_group=player_group)
replication_monitor(
group_ids,
replication_lag_tolerance=self.__replication_lag_tolerance,
apply_lag_tolerance=self.__apply_lag_tolerance,
time_lag_tolerance=self.__time_lag_tolerance,
timeout=self.__monitor_timeout)
def __wait_for_status(self, player_group, timeout, func):
group_ids = self.__player_trakcer.get_player_ids(
player_group=player_group)
start_time = time.time()
for node_id in group_ids:
while not func(node_id):
if time.time() - start_time > timeout:
raise ConductorTimeoutException(func.__name__ + ' timeout')
time.sleep(1)
if group_ids:
logger.debug('function[' + func.__name__ + '] returned [' +
', '.join(str(x) for x in group_ids) + ']')
else:
logger.debug('function[' + func.__name__ + '] returned [None]')
@staticmethod
def __log(command, player_group, group_ids):
if group_ids is None:
group_ids = []
logger.debug('Sent command[' + command + '] to group name[' +
(player_group if player_group else 'None') + '] ids[' +
', '.join(str(x) for x in group_ids) + ']')
