I did su -s /bin/sh -c "nova-manage db archive_deleted_rows --until-complete --verbose" nova and after I didn't see more 45 nodes, I saw only 20 nodes. Next I connected to nova db and manually remove osk013/osk014 in table 'compute_nodes'. Now, I see "There are 14 compute resource providers and 18 compute nodes in the deployment". That is correct. 4 nodes I don't add "[placement]" in nova config yet.