some things done

.vscode/settings.json

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+{
+    "python.pythonPath": "/usr/bin/python3"
+}

kafka/consumer.py

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+#!/usr/bin/env python3
+from datetime import datetime
+

kafka/docker-compose.yml

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+version: "3"
+services:
+  zookeeper:
+    image: 'bitnami/zookeeper:latest'
+    ports:
+      - '2181:2181'
+    environment:
+      - ALLOW_ANONYMOUS_LOGIN=yes
+  kafka:
+    image: 'bitnami/kafka:latest'
+    ports:
+      - '9092:9092'
+    environment:
+      - KAFKA_BROKER_ID=1
+      - KAFKA_LISTENERS=PLAINTEXT://:9092
+      - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://127.0.0.1:9092
+      - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
+      - ALLOW_PLAINTEXT_LISTENER=yes
+    depends_on:
+      - zookeeper

kafka/publisher.py

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+#!/usr/bin/env python3

rabbit/consumer.py

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+#!/usr/bin/env python3
+from datetime import datetime
+
+import pika
+
+
+DATETIMES=[]
+
+
+def callback(ch, method, properties, body):
+    DATETIMES.append(datetime.now())
+
+
+try:
+    n = 10
+    credentials = pika.PlainCredentials("rabbit", "rabbit")
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host="localhost", credentials=credentials, heartbeat=0, socket_timeout=5))
+    channel = connection.channel()
+    channel.exchange_declare(exchange="test",exchange_type='direct')
+    queue_declare_result = channel.queue_declare(queue='testqueue', exclusive=False)
+    queue_name = queue_declare_result.method.queue
+    channel.queue_bind(exchange="test",routing_key='test', queue=queue_name)
+    channel.basic_qos(prefetch_count=1)
+    channel.basic_consume(queue=queue_name, on_message_callback=callback, auto_ack=True)
+    channel.start_consuming()
+except Exception:
+    connection.close()
+    print(DATETIMES)

rabbit/docker-compose.yml

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+version: "3"
+services:
+    rabbitmq:
+        image: rabbitmq:3-management-alpine
+        environment:
+            RABBITMQ_DEFAULT_USER: rabbit
+            RABBITMQ_DEFAULT_PASS: rabbit
+        ports:
+            - 5672:5672
+            - 15672:15672

rabbit/publisher.py

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+#!/usr/bin/env python3
+import pika
+try:
+    n = 10
+    credentials = pika.PlainCredentials("rabbit", "rabbit")
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host="localhost", credentials=credentials, heartbeat=0, socket_timeout=5))
+    channel = connection.channel()
+    channel.exchange_declare(exchange="test",exchange_type='direct')
+    string = "\"" + "a" * n + "\""
+    while True:
+        channel.basic_publish(exchange="test",routing_key="test",body=string.encode('UTF-8'))
+except Exception:
+    connection.close()