While deleting a VNF, when VNF state set to PENDING_DELETE and VDUs deletion request initiated but the meanwhile service got restarted, and due to this VNF state stuck in PENDING_DELETE and now when trying to delete that VNF, it showing not found message.
vagrant@dk:/opt/stack/tacker$ openstack vnf list
+--------------------------------------+--------+----------+----------------+--------------------------------------+--------------------------------------+
| ID | Name | Mgmt Url | Status | VIM ID | VNFD ID |
+--------------------------------------+--------+----------+----------------+--------------------------------------+--------------------------------------+
| 779c3b77-e33c-4a5b-adf0-97ddb62ca5ce | test-x | None | PENDING_DELETE | 39f41d08-41a9-4ded-933d-fb9e4aa463e4 | efae04cf-a7ff-4851-924b-6cb20b95c835 |
+--------------------------------------+--------+----------+----------------+--------------------------------------+--------------------------------------+
vagrant@dk:/opt/stack/tacker$ openstack vnf delete test-x
Unable to delete the below vnf(s):
Cannot delete test-x: VNF 779c3b77-e33c-4a5b-adf0-97ddb62ca5ce could not be found
vagrant@dk:/opt/stack/tacker$
This case can be also be occurred when multiple parallel requests will be initiated for same VNF, and we can not handle these cases.
But instead of VNF not found error correct error message should be there.