minhasapov_ruslan_lab_4/README.md

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-# Лабораторная работа №4
-#### ПИбд-42. Минхасапов Руслан.
-
----
-
-#### Туториал
-
-- Первый
-![Скриншот 1](./pictures/tutor_1.png)
-
-- Второй
-![Скриншот 2](./pictures/tutor_2.png)
-
-- Третий
-![Скриншот 3](./pictures/tutor_3.png)
-
----
-
-#### Выполнение лабораторной работы
-
-Выбранная предметная область: Мониторинг серверов
-
-Сначала запустим продюсера и 1/2 консьюмера.
-
-Результат:
-![Скриншот 4](./pictures/lab_con1&2.png)
-
-Вывод:
-Так как скорость поступления сообщений в очередь первого консьюмера больше, чем скорость его обработки сообщений - очередь довольно быстро переполняется.
-Второй же консьюмер моментально обрабатывает входящие сообщения, из-за чего его очередь никогда не заполняется.
-
-Теперь запустим сначала один экземпляр первого консьюмера, а потом несколько, чтобы они разгрузили накопившуюся очередь.
-
-Результат:
-![Скриншот 5](./pictures/lab_con1&many.png)
-
-Вывод:
-Накопившаяся очередь постепенно разгружается благодаря нескольким одновременно запущенным экземплярам первого консьюмера.
-
----
-
-#### Демонстрация работы
-
-Видео по [ссылке](https://disk.yandex.ru/i/zlf_9UFCmSEQgQ)

minhasapov_ruslan_lab_4/labwork/consumer_1.py

@@ -1,28 +0,0 @@
-import pika
-import time
-
-
-def callback(ch, method, properties, body):
-    print(f"[x] Consumer 1 received: {body.decode()}")
-
-    time.sleep(3)
-
-    print(f"[x] Consumer 1 processed:: {body.decode()}")
-    ch.basic_ack(delivery_tag=method.delivery_tag)
-
-
-def consume():
-    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672))
-
-    channel = connection.channel()
-
-    channel.queue_declare(queue='consumer_1_queue')
-    channel.queue_bind(exchange='server_monitoring', queue='consumer_1_queue')
-
-    channel.basic_consume(queue='consumer_1_queue', on_message_callback=callback)
-
-    print(' [*] Consumer 1 waiting for messages. To exit press CTRL+C')
-    channel.start_consuming()
-
-if __name__ == "__main__":
-    consume()

minhasapov_ruslan_lab_4/labwork/consumer_2.py

@@ -1,26 +0,0 @@
-import pika
-
-
-def callback(ch, method, properties, body):
-    print(f"[x] Consumer 2 received: {body.decode()}")
-
-    print(f"[x] Consumer 2 processed:: {body.decode()}")
-    ch.basic_ack(delivery_tag=method.delivery_tag)
-
-
-def consume():
-    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672))
-
-    channel = connection.channel()
-
-    channel.queue_declare(queue='consumer_2_queue')
-    channel.queue_bind(exchange='server_monitoring', queue='consumer_2_queue')
-
-    channel.basic_consume(queue='consumer_2_queue', on_message_callback=callback)
-
-    print(' [*] Consumer 2 waiting for messages. To exit press CTRL+C')
-    channel.start_consuming()
-
-
-if __name__ == "__main__":
-    consume()

minhasapov_ruslan_lab_4/labwork/publisher.py

@@ -1,28 +0,0 @@
-import pika
-import time
-import random
-
-def generage_message_metrics():
-    return f" | CPU: {random.randint(0, 100)}% | RAM: {random.randint(0, 100)}% | CD: {random.randint(0, 100)}% |"
-
-def produce():
-    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost', port=5672))
-    channel = connection.channel()
-
-    channel.exchange_declare(exchange='server_monitoring', exchange_type='fanout')
-
-    messages = [
-        "Server | ID: 1",
-        "Server | ID: 2",
-        "Server | ID: 3",
-    ]
-        
-    while True:
-        for message in messages:
-            message_with_metric = message + generage_message_metrics()
-            channel.basic_publish(exchange='server_monitoring', routing_key='', body=message_with_metric)
-            print(f"[x] Sent: {message_with_metric}")
-            time.sleep(1)
-
-if __name__ == "__main__":
-    produce()

minhasapov_ruslan_lab_4/tutor_1/receiver.py

@@ -1,28 +0,0 @@
-import os
-import sys
-import pika
-
-
-def main():
-    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
-    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)

minhasapov_ruslan_lab_4/tutor_1/send.py

@@ -1,13 +0,0 @@
-import pika
-
-connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
-channel = connection.channel()
-
-channel.queue_declare(queue='hello')
-
-channel.basic_publish(exchange='',
-                      routing_key='hello',
-                      body='Hello World!')
-print(" [x] Sent 'Hello World!'")
-
-connection.close()

minhasapov_ruslan_lab_4/tutor_2/new_task.py

@@ -1,19 +0,0 @@
-import pika
-import sys
-
-connection = pika.BlockingConnection(
-    pika.ConnectionParameters(host='localhost'))
-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()

minhasapov_ruslan_lab_4/tutor_2/worker.py

@@ -1,22 +0,0 @@
-import pika
-import time
-
-connection = pika.BlockingConnection(
-    pika.ConnectionParameters(host='localhost'))
-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()

minhasapov_ruslan_lab_4/tutor_3/emit_log.py

@@ -1,13 +0,0 @@
-import pika
-import sys
-
-connection = pika.BlockingConnection(
-    pika.ConnectionParameters(host='localhost'))
-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()

minhasapov_ruslan_lab_4/tutor_3/receive_logs.py

@@ -1,22 +0,0 @@
-import pika
-
-connection = pika.BlockingConnection(
-    pika.ConnectionParameters(host='localhost'))
-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()