Why does it take ~ 45s to get the first message?

[persona94]

I set up the consumer first

def setup_consumer(topic_list):
        try:
            consumer = Consumer(
                    <options for broker>,
                    'auto.offset.reset':'earliest',
                    'fetch.min.bytes': '200000',
                }
            )

            consumer.subscribe(topic_list)
        except Exception as e:
            app.logger.error(
                f'Exception during creation of active calls consumer - {e}'
            )
            return

start_consumer(consumer)

The consumer code looks like this

while True:
            message = consumer.poll(0.1)
            if message is None:
                print('Waiting for message')
                gevent.sleep(0.1)
                continue
            elif message.error():
                print(f'Error in loop {message.error()}')
                break
            else:
              print('Message received')
              ....

When I start the consumer it takes at least 45s to see the print "Message received"