[rabbitmq-discuss] Difference between async connection using ioloop and blocking connection for rabbitmq

[Ameya Patil]

Hi,

Ioloops in async connection is exhibiting blocking semantics. I am trying to understand how this is different than a blocking connection


The documentation (https://pika.readthedocs.org/en/latest/connecting.html#io-and-event-looping ) states:

These IOLoops are blocking methods which loop and listen for events.


In a experiment I conducted, I publish 2 messages, each 5 times: message 'test' published by AsyncPublisher and 'test1' by AsyncPublisher1.py.


In the consumer I have an if block stating:

If body == test:

    Time.sleep(10)


I run AsyncPublisher.py first, and after it has sent 5 test messages I run AsyncPublisher1.py.


The output I expect is :

Test

test1

test1

test1

tes1

Test

Test

Test

Test


Instead I get:

Test

Tes

Test

Test

Test

test1

test1

test1

test1

test1


This is the same as if I would run the sender and receiver using a blocking connection.

My question is how does a blocking connection different than ioloop.start ? Does it differ only on multithreading ?


Thanks,

Ameya

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