Description of problem: According to beta documentation https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/15-beta/html-single/director_installation_and_usage/index#cleaning-up-after-the-controller-node-replacement Check the network agents in your overcloud environment: openstack network agent list │ +--------------------------------------+----------------------+--------------------------+-------------------+-------+-------+-------------------------------+ │ | ID | Agent Type | Host | Availability Zone | Alive | State | Binary | │ +--------------------------------------+----------------------+--------------------------+-------------------+-------+-------+-------------------------------+ │ | 7a600908-a776-485a-87fa-96a890d44085 | OVN Controller agent | controller-1.localdomain | n/a | XXX | UP | ovn-controller | │ | 4a12c7ad-db64-41b6-8554-a8ad70ce9c05 | OVN Controller agent | compute-0.localdomain | n/a | :-) | UP | ovn-controller | │ | 483f4214-09cb-426c-abcb-87785b79cd0e | OVN Metadata agent | compute-0.localdomain | n/a | :-) | UP | networking-ovn-metadata-agent | │ | f8eba4ad-9952-4424-94fb-e0d8395f0891 | OVN Controller agent | controller-2.localdomain | n/a | XXX | UP | ovn-controller | │ | f7373a7a-ec6c-4314-8ed9-3129d83cd439 | OVN Controller agent | controller-0.localdomain | n/a | :-) | UP | ovn-controller | │ | 86a2f09b-297a-458d-a31e-c2478d6b4d24 | OVN Controller agent | controller-3.localdomain | n/a | :-) | UP | ovn-controller | │ | 9675b44e-4cc0-44f2-b657-78c20f500178 | OVN Controller agent | controller-4.localdomain | n/a | :-) | UP | ovn-controller | │ +--------------------------------------+----------------------+--------------------------+-------------------+-------+-------+-------------------------------+ If any agents appear for the old node, remove them: (overcloud) [stack@undercloud-0 ~]$ openstack network agent delete f8eba4ad-9952-4424-94fb-e0d8395f0891 │ Failed to delete network agent with ID 'f8eba4ad-9952-4424-94fb-e0d8395f0891': BadRequestException: 400: Client Error for url: https://10.0.0.101:13696/v2.0/agents/f8eba4ad-9952-4424-94fb-e0d8395f0891, Bad agent request: OVN agents canno│ t be deleted. │ 1 of 1 network agents failed to delete. Version-Release number of selected component (if applicable): OSP15 RHOS_TRUNK-15.0-RHEL-8-20190725.n.1 How reproducible: Steps to Reproduce: 1.Deploy OSP15 with 3 contoller 2.Try to replace controller using official documentation 3. Try to clean network agent related to removed controller Actual results: Bad agent request: OVN agents canno│ t be deleted Expected results: agent deleted Additional info:
*** This bug has been marked as a duplicate of bug 1828889 ***