The URL supplied is invalid if /tenant_id/servers/{server_id} does not exist because server_id is not a valid server id. So 404 is the appropriate response code.
** Changed in: nova Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1298771 Title: GET /servers/{server_id} should return 400 on invalid server_id but returns 404 Status in OpenStack Compute (Nova): Invalid Bug description: Currently, Call to GET /${tenant_id}/servers/${server_id} validates the server_id (uuid_like/int_like) and if found invalid, returns a 404 with ''Instance could not be found'' message. On invalid server_id, it should return 400 (Bad Request) with the message like "Invalid server_id" more info: ref: https://review.openstack.org/#/c/72637/13/nova/compute/api.py To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1298771/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp