# Unable to Delete Stale Compute Service ## Problem * Unable to delete stale compute service with the below error. ```ruby $ openstack compute service delete [COMPUTE_SERVICE_UUID] Failed to delete compute service with ID '[COMPUTE_SERVICE_UUID]': HttpException: 500: Server Error for url: https://[PCD_FQDN]/nova/v2.1/[PROJECT_ID]/os-services/[COMPUTE_SERVICE_UUID], Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible. 1 of 1 compute services failed to delete. ``` ## Environment * Private Cloud Director Virtualization - v2025.4 and Higher * Self-Hosted Private Cloud Director Virtualization - v2025.4 and Higher * Component: Compute Service ## Cause * Forcefully removing a host from PCD, resulting in incomplete cleanup of resources on the management plane. ## Diagnostics * Compute Service List: ```bash $ openstack compute service list -c ID -c Binary -c Host -c Status -c State +---------------------------+----------------+---------------------+---------+--------+ | ID | Binary | Host | Status | State | +---------------------------+----------------+---------------------+----------+-------+ | [COMPUTE_SERVICE_UUID_1] | nova-scheduler | nova-scheduler | enabled | up | | [COMPUTE_SERVICE_UUID_2] | nova-conductor | nova-conductor | enabled | up | | [COMPUTE_SERVICE_UUID_3] | nova-compute | [HOST1.EXAMPLE.COM] | enabled | up | +---------------------------+----------------+---------------------+----------+-------+ ``` * Resource Provider List: ```bash $ openstack resource provider list -c uuid -c name +--------------------------------------+---------------------+ | uuid | name | +--------------------------------------+---------------------+ | [RESOURCE_PROVIDER_UUID_1] | [HOST1.EXAMPLE.COM] | | [RESOURCE_PROVIDER_UUID_2] | [HOST2.EXAMPLE.COM] | +--------------------------------------+---------------------+ ``` * Nova API Pod Logs: * First grep the Nova API logs with compute service UUID and Note the Deletion Request ID. {% code title="nova-api logs:" %} ```ruby $ kubectl logs -n | grep INFO nova.osapi_compute.wsgi.server [None [DELETION_REQUEST_ID] [OTHER_ID_1] [OTHER_ID_2] - - default default] [IP_ADDRESS_1],[IP_ADDRESS_2] "DELETE /v2.1/[åçPROJECT_ID]/os-services/[COMPUTE_SERVICE_UUID] HTTP/1.1" status: 500 len: 595 time: 0.1055756 ``` {% endcode %} Now grep the Nova API logs with Deletion Request ID and Note the Missing Resource Provider UUID. {% code title="nova-api logs:" %} ```ruby $ kubectl logs -n | grep Defaulted container "nova-osapi" out of: nova-osapi, socat18774, init (init) ERROR nova.api.openstack.wsgi [None [DELETION_REQUEST_ID] [OTHER_ID_1] [OTHER_ID_2] - - default default] Unexpected exception in API method: ValueError: No such provider [MISSING_RESOURCE_PROVIDER_UUID] INFO nova.api.openstack.wsgi [None [DELETION_REQUEST_ID] [OTHER_ID_1] [OTHER_ID_2] - - default default] HTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible. INFO nova.osapi_compute.wsgi.server [None [DELETION_REQUEST_IDD] [OTHER_ID_1] [OTHER_ID_2] - - default default] [IP_ADDRESS_1],[IP_ADDRESS_2] "DELETE /v2.1/[PROJECT_ID]/os-services/[COMPUTE_SERVICE_UUID] HTTP/1.1" status: 500 len: 595 time: 0.1055756 /var/lib/openstack/lib/python3.10/site-packages/pycadf/identifier.py:71: UserWarning: Invalid uuid: unknown. To ensure interoperability, identifiers should be a valid uuid. ``` {% endcode %} * Based on above logs, as part of compute service deletion Nova is trying to delete the associated resource provider in Placement, but it's unable to locate it in the ProviderTree. ## Resolution * Created a dummy Resource Provider with the same UUID that Nova is looking for during compute service deletion. ```bash $ openstack resource provider create --uuid= temp_provider Expecting value: line 1 column 1 (char 0) ``` * Verify if the dummy Resource Provider with the same UUID is created. ```bash $ openstack resource provider list -c uuid -c name +--------------------------------------+---------------------+ | uuid | name | +--------------------------------------+---------------------+ | [RESOURCE_PROVIDER_UUID_1] | [HOST1.EXAMPLE.COM] | | [RESOURCE_PROVIDER_UUID_1] | [HOST2.EXAMPLE.COM] | | [MISSING_RESOURCE_PROVIDER_UUID1] | temp_provider | +--------------------------------------+---------------------+ ``` * Now, Delete the Compute service. ```ruby $ openstack compute service delete ``` ## Validation * Check the Complete Services list. ```bash $ openstack compute service list -c ID -c Binary -c Host -c Status -c State +---------------------------+----------------+-------------------+---------+--------+ | ID | Binary | Host | Status | State | +---------------------------+----------------+-------------------+----------+-------+ | [COMPUTE_SERVICE_UUID_1] | nova-scheduler | nova-scheduler | enabled | up | | [COMPUTE_SERVICE_UUID_2] | nova-conductor | nova-conductor | enabled | up | +---------------------------+----------------+-------------------+----------+-------+ ``` ## Additional Information * Please consult our [documentation ](https://platform9.com/docs/private-cloud-director/private-cloud-director/add-hosts-Virtualized-Cluster#remove-a-host)for the recommended procedure for offboarding a host from PCD. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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