[classic_queue.default_version] How to know that the v2 option is applied?

[jdfresser]

Hello,

I tried to activate the functionnality classic_queue.default_version=2, by editing my configuration on a freshly installed 3.11.5-1 standalone server.
Configuration is done via file: /etc/rabbitmq/rabbitmq.config

[
  {rabbit, [
    {tcp_listeners, [{"0.0.0.0", 5672}]},
    {vm_memory_high_watermark, 0.4},
    {disk_free_limit, {mem_relative, 1.5}},
    {classic_queue_default_version, 2},
    {loopback_users, []}
  ]}].

This file is read by rabbitmq, as can be seen in the logs:

2022-12-29 17:32:42.125541+01:00 [info] <0.231.0>  config file(s) : /etc/rabbitmq/rabbitmq.config

How can I know that this configuration is well applied on all queues? If I import definitions from another server, how to know that the classic_queue.default_version=2 is applied?
(Note: I do prefer to avoid applying policies)

I do not see it in the UI.
I tried to create some new queues, and the restarted the rabbitmq-server, then this logs appeared:

2022-12-29 17:32:42.952160+01:00 [info] <0.471.0> Converting queue q.storage_service_file.rt in vhost / from v1 to v2 after clean shutdown
2022-12-29 17:32:42.953308+01:00 [info] <0.474.0> Converting queue q.ftp-all in vhost / from v1 to v2 after clean shutdown
2022-12-29 17:32:42.954954+01:00 [info] <0.471.0> Queue q.storage_service_file.rt in vhost / converted 0 total messages from v1 to v2
2022-12-29 17:32:42.955983+01:00 [info] <0.474.0> Queue q.ftp-all in vhost / converted 0 total messages from v1 to v2

I then tried to import definitions from another server (3.9 server), and then restarted the rabbitmq-server.
I didn't see any logs of this kind.

Thanks for your help,

[lukebakken]

https://www.rabbitmq.com/rabbitmqctl.8.html#environment

You really should be using the modern rabbitmq.conf configuration file.

I then tried to import definitions from another server (3.9 server), and then restarted the rabbitmq-server. I didn't see any logs of this kind.

Since they are brand-new queues there will be nothing to convert, so no logs.

[jdfresser]

Thank you!

Since they are brand-new queues there will be nothing to convert, so no logs.
Ok, I didn't see it this way, but it's pretty obvious when you write it down .

You really should be using the modern rabbitmq.conf configuration file.
Thanks for the suggestion, I will.

[johanrhodin]

Look at the files, if the files created are .idx then it is v1, if the are .qi/.qs they are v2