I installed the RMQ management plugin in my dev and qa clusters and noticed a queue called notifications.info that has 0 consumers: root@us01odc-qa-ctrl1:~# rabbitmqctl list_queues|grep notific notifications.info 15496 If I cold-start RMQ it starts without a notifications.info queue but after I create a VM it appears with 1 or 2 messages and then gradually grows over time. The messages in it appear to be Openstack operations: {"oslo.message": "{\"_context_domain\": null, \"_context_roles\": [\"admin\"], \"_context_global_request_id\": null, \"event_type\": \"dns.domain.exists\", \"_context_edit_managed_records\": false, \"_context_service_catalog\": null, \"timestamp\": \"2019-10-10 21:02:01.524052\", \"_context_all_tenants\": true, \"_unique_id\": \"326b8e30d10f40279d806384e7023954\", \"_context_resource_uuid\": null, \"_context_request_id\": \"req-a16c0cd5-94c3-4bf7-90ed-3ab677cc8e66\", \"_context_is_admin_project\": true, \"_context_tsigkey_id\": null, \"_context_client_addr\": null, \"payload\": {\"updated_at\": \"2019-09-24T15:08:55.000000\", \"minimum\": 3600, \"ttl\": 60, \"serial\": 1569337730, \"deleted_at\": null, \"id\": \"67840d5f-6b98-449c-80c4-4d3e3ee74d19\", \"parent_zone_id\": null, \"retry\": 600, \"transferred_at\": null, \"version\": 470, \"type\": \"PRIMARY\", \"email\": \"linux-admin-core@synopsys.com\", \"status\": \"ACTIVE\", \"description\": null, \"deleted\": \"0\", \"shard\": 1656, \"action\": \"NONE\", \"expire\": 86400, \"audit_period_beginning\": \"2019-10-10T20:02:01.486946\", \"masters\": [], \"name\": \"sg.us01-qa.synopsys.com.\", \"tenant_id\": \"80a60cda79be4ec48e12683478f0cf3b\", \"created_at\": \"2019-09-05T17:18:47.000000\", \"pool_id\": \"794ccc2c-d751-44fe-b57f-8894c9f5c842\", \"refresh\": 3545, \"delayed_notify\": false, \"audit_period_ending\": \"2019-10-10T21:02:01.486946\", \"attributes\": []}, \"_context_auth_token\": null, \"_context_system_scope\": null, \"_context_original_tenant\": null, \"_context_user_identity\": \"- - - - -\", \"_context_show_deleted\": false, \"_context_tenant\": null, \"_context_hide_counts\": false, \"priority\": \"INFO\", \"_context_read_only\": false, \"_context_is_admin\": true, \"_context_abandon\": null, \"_context_project_domain\": null, \"_context_user\": null, \"_context_user_domain\": null, \"publisher_id\": \"producer.us01odc-qa-ctrl2\", \"message_id\": \"0ceae8e3-e6df-4b08-8b1e-c6d8e75d456d\", \"_context_project\": null}", "oslo.version": "2.0"} I didn't install the management plugin in prod, but it appears that I have the same issue there: root@us01odc-p01-ctrl1:~# rabbitmqctl list_queues|grep notific notifications.info 226869 What should be consuming the notifications.info queue?