class InstanceManager(threading.Thread):
''' The class is a thread to monitor all the provisions '''
def __init__(self, config):
threading.Thread.__init__(self)
self.config = config
self.instanceMetric = ProvisionInstanceMetric()
self.cloud = get_cloud_api(self.config)
self.running = True
self.instance_queue = Queue.Queue()
self.instances_last_update_time = time.time()
self.instances_next_update_time = time.time()
self.instances_update_flag = True
#self.get_host = not self.config.disable_host
def get_instance_queue(self):
return self.instance_queue
def terminateIM(self):
self.running = False
self.join()
def run(self):
while (self.running):
self.collect_instance()
if not self.config.disable_host:
self._update_instances_info()
sleep(1)
self.collect_instance()
self._wait_for_all_instances_get_host()
def collect_instance(self):
while not self.instance_queue.empty():
instance = self.instance_queue.get()
self.instanceMetric._append_instance(instance)
def _wait_for_all_instances_get_host(self):
timeout = 120
while not self.instanceMetric._wait_for_all_instances_get_host(
self.cloud) and timeout > 0:
time.sleep(20)
timeout = timeout - 20
def _update_instances_info(self):
if self.instances_update_flag and (
time.time() - self.instances_next_update_time > 0):
if self.instanceMetric._update_instances_info(self.cloud):
self.instances_next_update_time = time.time(
) + 2 * self.config.min_lifetime / 3
self.instances_last_update_time = time.time()
elif time.time(
) - self.instances_last_update_time > 5 * self.config.client_interval:
self.instances_update_flag = False
class InstanceManager(threading.Thread): ''' The class is a thread to monitor all the provisions ''' def __init__(self, config): threading.Thread.__init__(self) self.config = config self.instanceMetric=ProvisionInstanceMetric() self.cloud = get_cloud_api(self.config) self.running=True self.instance_queue = Queue.Queue() self.instances_last_update_time = time.time() self.instances_next_update_time = time.time() self.instances_update_flag = True #self.get_host = not self.config.disable_host def get_instance_queue(self): return self.instance_queue def terminateIM(self): self.running=False self.join() def run(self): while(self.running): self.collect_instance() if not self.config.disable_host: self._update_instances_info() sleep(1) self.collect_instance() self._wait_for_all_instances_get_host() def collect_instance(self): while not self.instance_queue.empty(): instance = self.instance_queue.get() self.instanceMetric._append_instance(instance) def _wait_for_all_instances_get_host(self): timeout = 120 while not self.instanceMetric._wait_for_all_instances_get_host(self.cloud) and timeout > 0: time.sleep(20) timeout = timeout - 20 def _update_instances_info(self): if self.instances_update_flag and (time.time() - self.instances_next_update_time > 0): if self.instanceMetric._update_instances_info(self.cloud): self.instances_next_update_time = time.time() + 2*self.config.min_lifetime/3 self.instances_last_update_time = time.time() elif time.time() - self.instances_last_update_time > 5*self.config.client_interval: self.instances_update_flag = False
