def test_predict_antinex_simple_error(self):
exchange = "webapp.predict.requests"
routing_key = "webapp.predict.requests"
queue = "webapp.predict.requests"
max_models = 1
prc = AntiNexProcessor(
max_models=max_models)
body = self.build_predict_antinex_request()
self.assertEqual(
body["ml_type"],
"classification")
message = MockMessage(
exchange=exchange,
routing_key=routing_key,
queue=queue)
self.assertEqual(
message.state,
"NOTRUN")
self.assertEqual(
message.get_exchange(),
exchange)
self.assertEqual(
message.get_routing_key(),
routing_key)
self.assertEqual(
message.get_queue(),
queue)
self.assertEqual(
len(prc.models),
0)
prc.handle_messages(
body=body,
message=message)
self.assertEqual(
message.state,
"ACK")
self.assertEqual(
len(prc.models),
0)
def test_train_antinex_simple_model_cleanup(self):
exchange = "webapp.train.requests"
routing_key = "webapp.train.requests"
queue = "webapp.train.requests"
max_models = 1
prc = AntiNexProcessor(max_models=max_models)
body = self.build_train_antinex_request()
self.assertEqual(body["ml_type"], "classification")
message = MockMessage(exchange=exchange,
routing_key=routing_key,
queue=queue)
self.assertEqual(message.state, "NOTRUN")
self.assertEqual(message.get_exchange(), exchange)
self.assertEqual(message.get_routing_key(), routing_key)
self.assertEqual(message.get_queue(), queue)
self.assertEqual(len(prc.models), 0)
prc.handle_messages(body=body, message=message)
self.assertEqual(message.state, "ACK")
self.assertEqual(len(prc.models), max_models)
# now try to train a new one and test the cleanup
body["label"] = "should-remove-the-first"
self.assertEqual(len(prc.models), 1)
prc.handle_messages(body=body, message=message)
self.assertEqual(message.state, "ACK")
self.assertEqual(len(prc.models), max_models)
for midx, model_name in enumerate(prc.models):
self.assertEqual(model_name, body["label"])
def __init__(self,
name="",
broker_url=ev("BROKER_URL", "redis://localhost:6379/6"),
train_queue_name=ev("TRAIN_QUEUE", "webapp.train.requests"),
predict_queue_name=ev("PREDICT_QUEUE",
"webapp.predict.requests"),
max_msgs=100,
max_models=100):
"""__init__
:param name: worker name
:param broker_url: connection string to broker
:param train_queue_name: queue name for training requests
:param predict_queue_name: queue name for predict requests
:param max_msgs: num msgs to save for replay debugging (FIFO)
:param max_models: num pre-trained models to keep in memory (FIFO)
"""
self.name = name
log.info(("{} - INIT").format(self.name))
self.state = "INIT"
self.broker_url = broker_url
# Setup queues:
self.train_queue_name = train_queue_name
self.predict_queue_name = predict_queue_name
self.queues = [self.train_queue_name, self.predict_queue_name]
# Subscribers
self.all_queues_sub = None
# SSL Celery options dict
self.ssl_options = {}
# http://docs.celeryproject.org/en/latest/userguide/calling.html#calling-retry # noqa
# allow publishes to retry for a time
self.task_publish_retry_policy = {
"interval_max": 1,
"max_retries": 120, # None - forever
"interval_start": 0.1,
"interval_step": 0.2
}
# Confirm publishes with Celery
# https://github.com/celery/kombu/issues/572
self.transport_options = {"confirm_publish": True}
self.conn_attrs = {
"task_default_queue": "antinex.worker.control",
"task_default_exchange": "antinex.worker.control",
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-worker_hijack_root_logger
"worker_hijack_root_logger": False,
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-worker_prefetch_multiplier
"worker_prefetch_multiplier": 1, # consume 1 message at a time
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-worker_prefetch_multiplie
"prefetch_count":
3, # noqa consume 1 message at a time per worker (3 workers)
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-broker_heartbeat
"broker_heartbeat": 240, # in seconds
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-broker_connection_max_retries
"broker_connection_max_retries": None, # None is forever
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-task_acks_late
"task_acks_late":
True, # noqa on consume do not send an immediate ack back
"task_publish_retry_policy": self.task_publish_retry_policy
}
self.processor = AntiNexProcessor(name="{}.prc".format(self.name),
max_msgs=max_msgs,
max_models=max_models)
class AntiNexCore:
"""
AntiNex Celery Worker Core (core)
This is a Celery Worker used to connect to a message broker
(``BROKER_URL=redis://localhost:6379/6`` by default) and monitor
messages to consume off the following queues:
``TRAIN_QUEUE`` - ``webapp.train.requests``
``PREDICT_QUEUE`` - ``webapp.predict.requests``
The core trains and manages pre-trained deep neural networks (dnn) by
training request ``label`` name. If you want to use an existing
dnn, then just set the ``label`` name on a ``Prediction`` request and
the core will do the rest.
"""
def __init__(self,
name="",
broker_url=ev("BROKER_URL", "redis://localhost:6379/6"),
train_queue_name=ev("TRAIN_QUEUE", "webapp.train.requests"),
predict_queue_name=ev("PREDICT_QUEUE",
"webapp.predict.requests"),
max_msgs=100,
max_models=100):
"""__init__
:param name: worker name
:param broker_url: connection string to broker
:param train_queue_name: queue name for training requests
:param predict_queue_name: queue name for predict requests
:param max_msgs: num msgs to save for replay debugging (FIFO)
:param max_models: num pre-trained models to keep in memory (FIFO)
"""
self.name = name
log.info(("{} - INIT").format(self.name))
self.state = "INIT"
self.broker_url = broker_url
# Setup queues:
self.train_queue_name = train_queue_name
self.predict_queue_name = predict_queue_name
self.queues = [self.train_queue_name, self.predict_queue_name]
# Subscribers
self.all_queues_sub = None
# SSL Celery options dict
self.ssl_options = {}
# http://docs.celeryproject.org/en/latest/userguide/calling.html#calling-retry # noqa
# allow publishes to retry for a time
self.task_publish_retry_policy = {
"interval_max": 1,
"max_retries": 120, # None - forever
"interval_start": 0.1,
"interval_step": 0.2
}
# Confirm publishes with Celery
# https://github.com/celery/kombu/issues/572
self.transport_options = {"confirm_publish": True}
self.conn_attrs = {
"task_default_queue": "antinex.worker.control",
"task_default_exchange": "antinex.worker.control",
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-worker_hijack_root_logger
"worker_hijack_root_logger": False,
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-worker_prefetch_multiplier
"worker_prefetch_multiplier": 1, # consume 1 message at a time
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-worker_prefetch_multiplie
"prefetch_count":
3, # noqa consume 1 message at a time per worker (3 workers)
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-broker_heartbeat
"broker_heartbeat": 240, # in seconds
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-broker_connection_max_retries
"broker_connection_max_retries": None, # None is forever
# noqa http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-task_acks_late
"task_acks_late":
True, # noqa on consume do not send an immediate ack back
"task_publish_retry_policy": self.task_publish_retry_policy
}
self.processor = AntiNexProcessor(name="{}.prc".format(self.name),
max_msgs=max_msgs,
max_models=max_models)
# end of __init__
def start(self,
app,
ssl_options=None,
task_retry_policy=None,
transport_options=None,
conn_attrs=None,
queues=None,
callback=None):
"""start
:param app: Celery app
:param ssl_options: ssl dictionary
:param task_retry_policy: retry policy
:param transport_options: transport config dict
:param conn_attrs: connection dict
:param queues: name of queues to consume messages
:param callback: callback method when a message is consumed
"""
log.info(("{} - start").format(self.name))
use_queues = queues
if not use_queues:
use_queues = self.queues
use_ssl_options = ssl_options
if not use_ssl_options:
use_ssl_options = self.ssl_options
use_retry_policy = task_retry_policy
if not use_retry_policy:
use_retry_policy = self.task_publish_retry_policy
use_transport_options = transport_options
if not use_transport_options:
use_transport_options = self.transport_options
use_conn_attrs = conn_attrs
if not use_conn_attrs:
use_conn_attrs = self.conn_attrs
use_callback = callback
if not use_callback:
use_callback = self.processor.handle_messages
log.info(("{} - start - creating subscriber").format(self.name))
self.all_queues_sub = Subscriber(self.name, self.broker_url, app,
use_ssl_options, **use_conn_attrs)
log.info(("{} - start - activating consumer for "
"queues={} callback={}").format(self.name, use_queues,
use_callback.__name__))
self.all_queues_sub.consume(
callback=use_callback,
queues=use_queues,
exchange=None,
routing_key=None,
prefetch_count=use_conn_attrs["prefetch_count"])
self.state = "ACTIVE"
log.info(("{} - start - state={} done").format(self.name, self.state))
# end of start
def show_diagnostics(self):
"""show_diagnostics"""
self.processor.show_diagnostics()
# end of show_diagnostics
def shutdown(self):
"""shutdown"""
log.info(("{} - shutting down - start").format(self.name))
self.state = "SHUTDOWN"
self.show_diagnostics()
self.processor.shutdown()
log.info(("{} - shutting down - done").format(self.name))
def test_scaler_first_time_predict_with_rows(self):
exchange = "webapp.predict.requests"
routing_key = "webapp.predict.requests"
queue = "webapp.predict.requests"
max_models = 1
prc = AntiNexProcessor(
max_models=max_models)
num_rows_at_bottom = 7
predict_rows_body = self.build_predict_rows_from_dataset(
num_rows_at_bottom=num_rows_at_bottom)
name_of_model = predict_rows_body["label"].lower().strip()
# make sure to remove the dataset arg to trigger
# the predict from just the list of dictionary rows
predict_rows_body.pop(
"dataset",
None)
self.assertEqual(
predict_rows_body["ml_type"],
"classification")
message = MockMessage(
exchange=exchange,
routing_key=routing_key,
queue=queue)
self.assertEqual(
message.state,
"NOTRUN")
self.assertEqual(
message.get_exchange(),
exchange)
self.assertEqual(
message.get_routing_key(),
routing_key)
self.assertEqual(
message.get_queue(),
queue)
self.assertEqual(
len(prc.models),
0)
prc.handle_messages(
body=predict_rows_body,
message=message)
self.assertEqual(
message.state,
"ACK")
self.assertEqual(
len(prc.models),
max_models)
model_data = prc.models[name_of_model]
print(len(model_data["data"]["sample_predictions"]))
self.assertTrue(
(len(model_data["data"]["sample_predictions"])
== num_rows_at_bottom))
num_rows_at_bottom = 4
predict_rows_body = self.build_predict_rows_from_dataset(
num_rows_at_bottom=num_rows_at_bottom)
# make sure to remove the dataset arg to trigger
# the predict from just the list of dictionary rows
predict_rows_body.pop(
"dataset",
None)
self.assertEqual(
len(prc.models),
1)
prc.handle_messages(
body=predict_rows_body,
message=message)
self.assertEqual(
message.state,
"ACK")
self.assertEqual(
len(prc.models),
max_models)
self.assertTrue(
name_of_model in prc.models)
model_data = prc.models[name_of_model]
self.assertTrue(
(len(model_data["data"]["sample_predictions"])
== num_rows_at_bottom))
