Comment 5 for bug 1708008

Since the logs had no content of when it happened and we had no other reports on it at all this is hard to action.

(Un?)Furtunately there also was no other upgrade of it since then.
The last still is: CVE-2016-9877 on Thu, 27 Jul 2017
Due to that we don't know if that would have happened again.

I tried to recreate this.
Based on [1] with this change for durable:
diff --git a/scripts/rabbitmq-server/receive.py b/scripts/rabbitmq-server/receive.py
index 80c7eb3e..cd5ce995 100755
--- a/scripts/rabbitmq-server/receive.py
+++ b/scripts/rabbitmq-server/receive.py
@@ -7,13 +7,13 @@ connection = pika.BlockingConnection(pika.ConnectionParameters(
 channel = connection.channel()

-channel.queue_declare(queue='hello')
+channel.queue_declare(queue='hellod', durable=True)

 def callback(ch, method, properties, body):
     print(" [x] Received %r" % body)

 channel.basic_consume(callback,
- queue='hello',
+ queue='hellod',
                       no_ack=True)

 #print(' [*] Waiting for messages. To exit press CTRL+C')
diff --git a/scripts/rabbitmq-server/send.py b/scripts/rabbitmq-server/send.py
index 56117d5a..8e4d4b7f 100755
--- a/scripts/rabbitmq-server/send.py
+++ b/scripts/rabbitmq-server/send.py
@@ -7,10 +7,10 @@ connection = pika.BlockingConnection(pika.ConnectionParameters(
 channel = connection.channel()

-channel.queue_declare(queue='hello')
+channel.queue_declare(queue='hellod', durable=True)

 channel.basic_publish(exchange='',
- routing_key='hello',
+ routing_key='hellod',
                       body='Hello World!')
 print(" [x] Sent 'Hello World!'")
 connection.close(

Test 1 - non durable queues
root@x:~# ./send.py
 [x] Sent 'Hello World!'
root@x:~# ./receive.py
 [x] Received 'Hello World!'

Test 2 - non durable queues restarted
root@x:~# ./send.py
 [x] Sent 'Hello World!'
root@x:~# systemctl restart rabbitmq-server
root@x:~# ./receive.py
(nothing - as expected)

Test 3 - durable queues [2]
root@x:~# ./send.py
 [x] Sent 'Hello World!'
root@x:~# ./receive.py
 [x] Received 'Hello World!'
root@x:~# rabbitmqctl list_queues name durable messages
Listing queues ...
hello false 0
hellod true 0

Test 3 - durable queues restart
root@x:~# ./send.py
 [x] Sent 'Hello World!'
root@x:~# rabbitmqctl list_queues name durable messages
Listing queues ...
hello false 0
hellod true 1
root@x:~# systemctl restart rabbitmq-server
root@x:~# ./receive.py
root@x:~# rabbitmqctl list_queues name durable messages
Listing queues ...
hellod true 0

So the messages are lost on a server restart - even on the durable queue.
I thought to understand that this should not happen.
I'm not entirely sure if this is a valid reproducer yet, but it should be with my limited rabbitmq-foo

[1]: https://git.launchpad.net/qa-regression-testing/tree/scripts/test-rabbitmq-server.py
[2]: https://www.rabbitmq.com/tutorials/tutorial-two-python.html