basic_get with explicit no_ack=True, ack message, it should not

Hey

The following example below auto ack message - rabbitmq receive a get auto_auto ack whereas it should receive get manual_ack. Until I do not call myself ack the message should stay in the queue.

channel init :

        connection:pika.BlockingConnection = pika.BlockingConnection(pika.URLParameters(amqp_url))

        self._channel:BlockingChannel = connection.channel()
        self._channel.confirm_delivery()
        self._channel.queue_declare(queue=self._queue, durable=True, passive=True, auto_delete=False)

        while(True):
            method_frame, header_frame, body = self._channel.basic_get(queue=self._queue, no_ack=True)

Here the result payload of my debug :

b’\x00<\x00F’, b’\x00\x00’, b’\x1f’, b’el.support.destination.ingester’, b’\x01’ marshal result : b"\x01\x00\x01\x00\x00\x00’\x00<\x00F\x00\x00\x1fel.support.destination.ingester\x01\xce"

What’s the problem ? or what i’m doing wrong ?

[lukebakken]

no_ack=True indicates that the message does not require an acknowledgement and will be instantly acknowledged on delivery. You should use no_ack=False if you need to manually ack messages.

confirm_delivery turns on publisher confirms, which is a different feature.

Please see the documentation here:

https://www.rabbitmq.com/confirms.html

[deeplearningboy]

here is fix

import pika

class RabbitMQ(): def init(self): connection = pika.BlockingConnection() self.channel = connection.channel() # del connection self.channel.confirm_delivery() self.body = None

def publish(self, routing_key, body, exchange='' ):
    try:
        self.channel.basic_publish(
            exchange=exchange,
            routing_key=routing_key,
            body=body)
    except Exception as ex:
        print('Error Message could not be confirmed: ' + ex.args[0])
        print(f'Message [{exchange}] [{routing_key}] [{body}]')

def get_data(self, queue ):
    data = []
    while True:
        method_frame, header_frame, body = self.channel.basic_get( queue )
        if method_frame:
            data.append( body )
        else:
            return data

def close(self):
    self.channel.stop_consuming()
    self.channel.connection.close()

if name == ‘main’: rabbit = RabbitMQ() for i in range(6): rabbit.publish(‘test’,f’Hello World! {i}')