As per [1] the [DEFAULT]/host config is used related to the cinder host attachments. So I agree with Radoslaw that this could be a hostname configuration issue.
[1] https://docs.openstack.org/nova/rocky/configuration/config.html#DEFAULT.host
As per [1] the [DEFAULT]/host config is used related to the cinder host attachments. So I agree with Radoslaw that this could be a hostname configuration issue.
[1] https:/ /docs.openstack .org/nova/ rocky/configura tion/config. html#DEFAULT. host