Merge pull request 'tsukanova_irina_lab_4' (#64) from tsukanova_irina_lab_4 into main
Reviewed-on: Alexey/DAS_2024_1#64
28
tsukanova_irina_lab_4/Consumer_1.py
Normal file
@ -0,0 +1,28 @@
|
||||
import random
|
||||
import time
|
||||
import pika
|
||||
|
||||
queue_name = 'queue_1'
|
||||
exchange = 'logs'
|
||||
|
||||
|
||||
def callback(ch, method, properties, body):
|
||||
print(f" [Consumer_1] - получено сообщение - {body.decode()}")
|
||||
time.sleep(random.choice([2, 3]))
|
||||
print(f" [Consumer_1] - сообщение обработано")
|
||||
print()
|
||||
ch.basic_ack(delivery_tag=method.delivery_tag)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
|
||||
channel = connection.channel()
|
||||
try:
|
||||
# своя не анонимная очередь
|
||||
channel.queue_declare(queue=queue_name)
|
||||
# binding на exchange
|
||||
channel.queue_bind(exchange=exchange, queue=queue_name)
|
||||
channel.basic_consume(queue=queue_name, on_message_callback=callback)
|
||||
channel.start_consuming()
|
||||
except KeyboardInterrupt:
|
||||
connection.close()
|
25
tsukanova_irina_lab_4/Consumer_2.py
Normal file
@ -0,0 +1,25 @@
|
||||
import pika
|
||||
|
||||
queue_name = 'queue_2'
|
||||
exchange = 'logs'
|
||||
|
||||
|
||||
def callback(ch, method, properties, body):
|
||||
print(f" [Consumer_2] - получено сообщение - {body.decode()}")
|
||||
print(f" [Consumer_2] - сообщение обработано")
|
||||
print()
|
||||
ch.basic_ack(delivery_tag=method.delivery_tag)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
|
||||
channel = connection.channel()
|
||||
try:
|
||||
# своя не анонимная очередь
|
||||
channel.queue_declare(queue=queue_name)
|
||||
# binding на exchange
|
||||
channel.queue_bind(exchange=exchange, queue=queue_name)
|
||||
channel.basic_consume(queue=queue_name, on_message_callback=callback)
|
||||
channel.start_consuming()
|
||||
except KeyboardInterrupt:
|
||||
connection.close()
|
18
tsukanova_irina_lab_4/Publisher.py
Normal file
@ -0,0 +1,18 @@
|
||||
import random
|
||||
import time
|
||||
import pika
|
||||
|
||||
if __name__ == '__main__':
|
||||
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
|
||||
channel = connection.channel()
|
||||
channel.exchange_declare(exchange='logs', exchange_type='fanout')
|
||||
|
||||
try:
|
||||
while True:
|
||||
message = random.choice(["SIGABRT", "SIGALRM", "SIGKILL", "SIGSTOP", "SIGTERM", "SIGINT", "SIGQUIT"])
|
||||
channel.basic_publish(exchange='logs', routing_key='', body=message)
|
||||
time.sleep(1)
|
||||
except KeyboardInterrupt:
|
||||
connection.close()
|
||||
|
||||
|
39
tsukanova_irina_lab_4/README.md
Normal file
@ -0,0 +1,39 @@
|
||||
# Цуканова Ирина ПИбд-42
|
||||
# Лабораторная работа №4 - Работа с брокером сообщений
|
||||
|
||||
|
||||
## Предметная область:
|
||||
Сигналы в операционных системах семейства Unix
|
||||
|
||||
## Прохождение tutorial:
|
||||
|
||||
- Прохождение первого урока:
|
||||
![изображение 1](./images/t_1.png)
|
||||
|
||||
- Прохождение второго урока:
|
||||
![изображение 2](./images/t_2.png)
|
||||
|
||||
- Прохождение третьего урока:
|
||||
![изображение 3](./images/t_3.png)
|
||||
|
||||
|
||||
## Данные из RabbitMQ Management UI:
|
||||
|
||||
#### 1. Показания очереди queue_1 при одном запущенном экземпляре Consumer_1
|
||||
![изображение 1](./images/q_1_one_comsumer_1.jpg)
|
||||
#### 2. Показания очереди queue_2
|
||||
![изображение 2](./images/q_2.jpg)
|
||||
#### 3. Показания очереди queue_1 при двух запущенных экземплярах Consumer_1
|
||||
![изображение 3](./images/q_1_two_comsumer_1.jpg)
|
||||
#### 4. Показания очереди queue_1 при трех запущенных экземплярах Consumer_1
|
||||
![изображение 4](./images/q_1_three_comsumer_1.jpg)
|
||||
|
||||
### Вывод:
|
||||
Из скриншотов видно, что из-за моментальной обработки сообщений в Consumer_2, очередь queue_2 никогда не заполняется.
|
||||
Consumer_1 же тратить на обработку 2-3 секунды, из-за чего очередь queue_1 существенно заполняется при одном
|
||||
запущенном экземпляре.
|
||||
Если уже запущенных экземпляров Consumer_1 будет больше, чем один, то очередь будет заполняться не так быстро,
|
||||
и в определенный момент не будет заполняться вообще, что будет при оптимальном количестве запущенных экземпляров Consumer_1.
|
||||
|
||||
|
||||
## [Видео](https://drive.google.com/file/d/175HC9tEV-s5rglFFp4Z4j7MTteocKYrZ/view?usp=sharing)
|
BIN
tsukanova_irina_lab_4/images/q_1_one_comsumer_1.jpg
Normal file
After Width: | Height: | Size: 139 KiB |
BIN
tsukanova_irina_lab_4/images/q_1_three_comsumer_1.jpg
Normal file
After Width: | Height: | Size: 132 KiB |
BIN
tsukanova_irina_lab_4/images/q_1_two_comsumer_1.jpg
Normal file
After Width: | Height: | Size: 130 KiB |
BIN
tsukanova_irina_lab_4/images/q_2.jpg
Normal file
After Width: | Height: | Size: 123 KiB |
BIN
tsukanova_irina_lab_4/images/t_1.png
Normal file
After Width: | Height: | Size: 51 KiB |
BIN
tsukanova_irina_lab_4/images/t_2.png
Normal file
After Width: | Height: | Size: 86 KiB |
BIN
tsukanova_irina_lab_4/images/t_3.png
Normal file
After Width: | Height: | Size: 64 KiB |
25
tsukanova_irina_lab_4/t_1/receive.py
Normal file
@ -0,0 +1,25 @@
|
||||
import pika, sys, os
|
||||
|
||||
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)
|
11
tsukanova_irina_lab_4/t_1/send.py
Normal file
@ -0,0 +1,11 @@
|
||||
import pika
|
||||
|
||||
connection = pika.BlockingConnection(
|
||||
pika.ConnectionParameters(host='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()
|
20
tsukanova_irina_lab_4/t_2/new_task.py
Normal file
@ -0,0 +1,20 @@
|
||||
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()
|
||||
|
22
tsukanova_irina_lab_4/t_2/worker.py
Normal file
@ -0,0 +1,22 @@
|
||||
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()
|
13
tsukanova_irina_lab_4/t_3/emit_log.py
Normal file
@ -0,0 +1,13 @@
|
||||
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()
|
22
tsukanova_irina_lab_4/t_3/receive_logs.py
Normal file
@ -0,0 +1,22 @@
|
||||
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()
|