Hello guys.

I do many tests on xena and yoga. then i am sure that without ha-queue and kombu_reconnect_delay=0.5(it can < 1)

you cannot launch instances when 1 of 3 controllers is down. 

Somebody can verify what I say, I hope we will have a common solution for this problem because those who use openstack for the first time will continue to ask questions like that. 

Nguyen Huu Khoi

On Thu, Apr 13, 2023 at 12:59 AM Satish Patel <satish.txt@gmail.com> wrote:

This is great! Matt, 

Documentation would be greatly appreciated. I have a counter question: does Durable queue be good for large clouds with 1000 compute nodes or better to not use durable queue. This is a private cloud and we don't care about persistent data. 

On Wed, Apr 12, 2023 at 12:37 PM Radosław Piliszek <radoslaw.piliszek@gmail.com> wrote:

Hi Matt,

> As you're now reconfiguring a running deployment, there are
> some extra steps that need to be taken to migrate to durable queues.
>
> 1. You will need to stop the OpenStack services which use RabbitMQ.
>
> 2. Reset the state of RabbitMQ one each rabbit node with the following
> commands. You must run each command on all RabbitMQ nodes before
> moving on to the next command. This will remove all queues.
>
>     rabbitmqctl stop_app
>     rabbitmqctl force_reset
>     rabbitmqctl start_app
>
> 3. Start the OpenStack services again, at which point they will
> recreate the appropriate queues as durable.

This sounds like a great new addition-to-be to the Kolla Ansible docs!
Could you please propose it as a change?

Kindest,
Radek