Vague message "Deprecated features are being used"

[ioutkine]

Following the upgrade to version 3.13, the RabbitMQ console has begun to display a message stating, 'Deprecated features are being used.' However, the message does not specify which features are considered deprecated. Clicking on the 'Learn More' link leads to a page that fails to provide further clarification, as it does not even mention the term 'deprecated.' Any assistance in identifying these deprecated features would be greatly appreciated.

[ioutkine]

In server logs I see following error
Deprecated features: management_metrics_collection: Feature management_metrics_collection is deprecated.

But I cannot find any documentation where recommended settings are suggested.

[ansd]

Documentation is currently missing. The only documentation currently exists in #7390

[ioutkine]

Actually it seems I have broken the basic monitoring in the management console. Even if I add
deprecated_features.permit.management_metrics_collection = true
to the config, I still see the "deprecated feature" warning but I do not see connection, channel details any longer:

Any help is greatly appreciated!

[ioutkine]

I have sorted this out by restarting whole cluster. Could this be a bug?

1. Set deprecated_features.permit.management_metrics_collection = false on one node
2. Restart the node. Metrics will be disabled now
3. Set deprecated_features.permit.management_metrics_collection = true on the node
4. Restart the node. Metrics will not get enabled. To get it back you will need to stop other machines in the cluster

[christiansicari]

I have sorted this out by restarting whole cluster. Could this be a bug?

1. Set deprecated_features.permit.management_metrics_collection = false on one node
2. Restart the node. Metrics will be disabled now
3. Set deprecated_features.permit.management_metrics_collection = true on the node
4. Restart the node. Metrics will not get enabled. To get it back you will need to stop other machines in the cluster

How were you able to revert deprecated_features.permit.management_metrics_collection = false?
I've deployed Rabbit on EKS with the dedicated operator. I had the bad idea to set deprecated_features.permit.management_metrics_collection = false, but I can't revert it anymore.
I am stuck on this inconsistency

rabbitmq@rabbitmq-server-0:/$ cat /etc/rabbitmq/conf.d/
10-defaults.conf                  10-operatorDefaults.conf          11-default_user.conf              90-userDefinedConfiguration.conf  
rabbitmq@rabbitmq-server-0:/$ cat /etc/rabbitmq/conf.d/* | grep management_metrics_collection
deprecated_features.permit.management_metrics_collection = true
rabbitmq@rabbitmq-server-0:/$ rabbitmqctl list_deprecated_features
Listing deprecated features ...
┌───────────────────────────────┬──────────────────────┬───────────┐
│ name                          │ deprecation_phase    │ state     │
├───────────────────────────────┼──────────────────────┼───────────┤
│ amqp_address_v1               │ permitted_by_default │ permitted │
├───────────────────────────────┼──────────────────────┼───────────┤
│ amqp_filter_set_bug           │ permitted_by_default │ permitted │
├───────────────────────────────┼──────────────────────┼───────────┤
│ classic_queue_mirroring       │ removed              │ denied    │
├───────────────────────────────┼──────────────────────┼───────────┤
│ global_qos                    │ permitted_by_default │ permitted │
├───────────────────────────────┼──────────────────────┼───────────┤
│ management_metrics_collection │ permitted_by_default │ denied    │
├───────────────────────────────┼──────────────────────┼───────────┤
│ queue_master_locator          │ permitted_by_default │ permitted │
├───────────────────────────────┼──────────────────────┼───────────┤
│ ram_node_type                 │ permitted_by_default │ denied    │
├───────────────────────────────┼──────────────────────┼───────────┤
│ transient_nonexcl_queues      │ permitted_by_default │ permitted │
└───────────────────────────────┴──────────────────────┴───────────┘
rabbitmq@rabbitmq-server-0:/$ 

[michaelklishin]

@christiansicari FYI #12802, #12840. The fix shipped in 4.1.0 and 4.0.5.

I don't remember a false positive around deprecated_features.permit.management_metrics_collection specifically. Now that some deprecated features are disabled by default in the upcoming 4.3.0 release, our team had to update dozens of test suites and in some, explicitly allow deprecated features. There were not fixes or surprises that I recall.

[michaelklishin]

There were no false positives for management_metrics_collection.