Четвертая лабораторная готова

polevoy_sergey_lab_4/attempt/consumer1.py

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+import pika
+import time
+
+
+def callback(ch, method, properties, body):
+    print(f'Consumer 1: получено сообщение. {body.decode()}')
+
+    time.sleep(3)
+
+    print('Consumer 1 закончил обработку')
+    ch.basic_ack(method.delivery_tag)
+
+
+def consume_events_1():
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials=pika.PlainCredentials("superuser", "superpassword")))
+    channel = connection.channel()
+
+    channel.queue_declare(queue='consumer1_queue')
+    channel.queue_bind(exchange='ml_events', queue='consumer1_queue')
+
+    channel.basic_consume(queue='consumer1_queue', on_message_callback=callback)
+
+    print('Ожидание сообщения...')
+    channel.start_consuming()
+
+
+if __name__ == "__main__":
+    consume_events_1()

polevoy_sergey_lab_4/attempt/consumer2.py

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+import pika
+
+
+def callback(ch, method, properties, body):
+    print(f'Consumer 2: получено сообщение. {body.decode()}')
+
+    print('Consumer 2 закончил обработку')
+    ch.basic_ack(method.delivery_tag)
+
+
+def consume_events_2():
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials=pika.PlainCredentials("superuser", "superpassword")))
+    channel = connection.channel()
+
+    channel.queue_declare(queue='consumer2_queue')
+    channel.queue_bind(exchange='ml_events', queue='consumer2_queue')
+
+    channel.basic_consume(queue='consumer2_queue', on_message_callback=callback)
+
+    print('Ожидание сообщения...')
+    channel.start_consuming()
+
+
+if __name__ == "__main__":
+    consume_events_2()

polevoy_sergey_lab_4/attempt/publisher.py

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+import pika
+import time
+
+def publish_events():
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials=pika.PlainCredentials("superuser", "superpassword")))
+    channel = connection.channel()
+
+    channel.exchange_declare(exchange='ml_events', exchange_type='fanout')
+
+    events = [
+        "Пользователь начал обучение модели",
+        "Модель закончила обучение",
+        "Пользователь запросил создание чекпоинта для модели",
+        "Пользователь запустил модель для infere"
+    ]
+
+    while True:
+        event = events[int(time.time()) % len(events)]
+        channel.basic_publish(exchange='ml_events', routing_key='', body=event)
+        print(f'Отправлено: {event}')
+        time.sleep(1)
+
+
+if __name__ == "__main__":
+    publish_events()

polevoy_sergey_lab_4/docker-compose.yml

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+services:
+ rabbitmq:
+  image: rabbitmq:3-management
+  environment:
+   RABBITMQ_DEFAULT_USER: superuser
+   RABBITMQ_DEFAULT_PASS: superpassword
+  ports:
+   - "5672:5672"
+   - "15672:15672"

polevoy_sergey_lab_4/readme.md

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+# Лабораторная работа №4
+## Полевой Сергей ПИбд-42
+
+
+### Предметная область:
+Платформа машинного обучения
+
+### Результаты выполнения туториалов:
+ 
+- Первый туториал:
+![alt text](images/tutorial1.png)
+
+- Второй туториал:
+![alt text](images/tutorial2.png)
+
+- Третий туториал:
+![alt text](images/tutorial3.png)
+
+### Данные из RabbitMQ:
+
+![alt text](images/rmq1queue.png)
+![alt text](images/rmq2queue.png)
+
+### Вывод:
+Исходя из графиков и логики работы потребителей следует:
+1) Первый потребитель не успевает обрабатывать сообщения из первой очереди, поэтому сообщения постепенно накапливаются, что, тем не менее, можно компенсировать запуском нескольких потребителей, которые будут быстрее обрабатывать сообщения из очереди
+2) Второй потребитель полностью успевает за скоростью отправки сообщений и его очередь всегда остаётся без простаивающих сообщений
+
+
+#### Демонстрация работы доступна по [ссылке](https://disk.yandex.ru/i/QwOYlRQDQKvNnA) 
+
+
+

polevoy_sergey_lab_4/tutorial1/receive.py

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+import pika, sys, os
+
+
+def main():
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials=pika.PlainCredentials("superuser", "superpassword")))
+    channel = connection.channel()
+
+    channel.queue_declare(queue='hello')
+
+    def callback(ch, method, properties, body):
+        print(f" [x] Received {body}")
+
+    channel.basic_consume(queue='hello', on_message_callback=callback, auto_ack=True)
+
+    print(' [*] Waiting for messages. To exit press CTRL+C')
+    channel.start_consuming()
+
+
+if __name__ == '__main__':
+    try:
+        main()
+    except KeyboardInterrupt:
+        print('Interrupted')
+        try:
+            sys.exit(0)
+        except SystemExit:
+            os._exit(0)

polevoy_sergey_lab_4/tutorial1/send.py

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+import pika
+
+connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials=pika.PlainCredentials("superuser", "superpassword")))
+channel = connection.channel()
+
+channel.queue_declare('hello')
+
+channel.basic_publish(exchange='',
+                      routing_key='hello',
+                      body='Hello world!')
+print(" [x] Sent 'Hello world!'")
+
+connection.close()

polevoy_sergey_lab_4/tutorial2/new_task.py

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+import pika
+import sys
+
+connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials=pika.PlainCredentials("superuser", "superpassword")))
+channel = connection.channel()
+
+channel.queue_declare(queue='task_queue', durable=True)
+
+message = ' '.join(sys.argv[1:]) or "Hello World!"
+
+channel.basic_publish(
+    exchange='',
+    routing_key='task_queue',
+    body=message,
+    properties=pika.BasicProperties(
+        delivery_mode=pika.DeliveryMode.Persistent
+    ))
+
+print(f" [x] Sent {message}")
+
+connection.close()

polevoy_sergey_lab_4/tutorial2/worker.py

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+import pika
+import time
+
+connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials=pika.PlainCredentials("superuser", "superpassword")))
+channel = connection.channel()
+
+channel.queue_declare(queue='task_queue', durable=True)
+print(' [*] Waiting for messages. To exit press CTRL+C')
+
+
+def callback(ch, method, properties, body):
+    print(f" [x] Received {body.decode()}")
+    time.sleep(body.count(b'.'))
+    print(" [x] Done")
+    ch.basic_ack(delivery_tag=method.delivery_tag)
+
+
+channel.basic_qos(prefetch_count=1)
+channel.basic_consume(queue='task_queue', on_message_callback=callback)
+
+channel.start_consuming()

polevoy_sergey_lab_4/tutorial3/emit_log.py

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+import pika
+import sys
+
+connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials=pika.PlainCredentials("superuser", "superpassword")))
+channel = connection.channel()
+
+channel.exchange_declare(exchange='logs', exchange_type='fanout')
+
+message = ' '.join(sys.argv[1:]) or "info: Hello World!"
+channel.basic_publish(exchange='logs', routing_key='', body=message)
+
+print(f" [x] Sent {message}")
+
+connection.close()

polevoy_sergey_lab_4/tutorial3/receive_logs.py

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+import pika
+
+connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672, credentials=pika.PlainCredentials("superuser", "superpassword")))
+channel = connection.channel()
+
+channel.exchange_declare(exchange='logs', exchange_type='fanout')
+
+result = channel.queue_declare(queue='', exclusive=True)
+queue_name = result.method.queue
+
+channel.queue_bind(exchange='logs', queue=queue_name)
+
+print(' [*] Waiting for logs. To exit press CTRL+C')
+
+def callback(ch, method, properties, body):
+    print(f" [x] {body}")
+
+channel.basic_consume(queue=queue_name, on_message_callback=callback, auto_ack=True)
+
+channel.start_consuming()