how to check classic queue version 2 setting

[0Ams]

I set classic version 2 by rabbitmq.conf

but, managment-ui not changed classic2 on queue's view

how to check setting for classic queue default version 2?

$ rabbitmq-diagnostics environment | grep classic_queue_default_version
      {classic_queue_default_version,2},

It was confirmed that the value of env confirmed through A was changed.
Is there any other way to check that the default classic version has changed other than the environmental variables?

[michaelklishin]

rabbitmq-diagnostics environment is exactly how you inspect effective node configuration.

Updating default queue version in node config will not update it for existing queues. The setting is only used at queue declaration time but you seem to believe that it will apply immediately.

That's not the case: none of the settings in configuration files are applied on the fly. That's what policies and runtime parameters are for.

CQv2 can be adopted via a policy key.

[mkuratczyk]

These are two methods of making a queue v2. The policy is more flexible - you can pick which queues you want as v2. On the other hand if you don't change the default, you need to include the x-queue-version=2 in every policy you have where you want v2 (since only one policy is active).

3.13 will make v2 the default anyway.

[michaelklishin]

I don't know what a "basic classic queue" is, sorry. The queue storage version used is displayed on the individual queue page in the management UI.

[0Ams]

a "basic classic queue" in my question meant classic in the screenshot.

What I want is to set up for all queues without policy specification.
When I set it up like "{classic_queue_default_version,2}", I want to check if it's being used well as default CQ2, but I don't know where or how to check it.

Should I just understand that CQ2 is being used well in [email protected], if the settings are well set up?

[mkuratczyk]

With recent versions, if you select a specific queue, you will see whether it's v1 or v2.

[michaelklishin]

The queue storage version used is displayed on the individual queue page in the management UI