diff --git a/nova/api/openstack/placement/handlers/resource_provider.py b/nova/api/openstack/placement/handlers/resource_provider.py
index d9636b102e..4c0ed791c3 100644
--- a/nova/api/openstack/placement/handlers/resource_provider.py
+++ b/nova/api/openstack/placement/handlers/resource_provider.py
@@ -130,9 +130,14 @@ def create_resource_provider(req):
             context, name=data['name'], uuid=uuid)
         resource_provider.create()
     except db_exc.DBDuplicateEntry as exc:
+        # Whether exc.columns has one or two entries (in the event
+        # of both fields being duplicates) appears to be database
+        # dependent, so going with the complete solution here.
+        duplicate = ', '.join(['%s: %s' % (column, data[column])
+                          for column in exc.columns])
         raise webob.exc.HTTPConflict(
-            _('Conflicting resource provider %(name)s already exists.') %
-            {'name': data['name']})
+            _('Conflicting resource provider %(duplicate)s already exists.') %
+            {'duplicate': duplicate})
     except exception.ObjectActionError as exc:
         raise webob.exc.HTTPBadRequest(
             _('Unable to create resource provider %(rp_uuid)s: %(error)s') %
diff --git a/nova/tests/functional/api/openstack/placement/gabbits/resource-provider-duplication.yaml b/nova/tests/functional/api/openstack/placement/gabbits/resource-provider-duplication.yaml
new file mode 100644
index 0000000000..9eb60fd9f4
--- /dev/null
+++ b/nova/tests/functional/api/openstack/placement/gabbits/resource-provider-duplication.yaml
@@ -0,0 +1,48 @@
+# Verify different error messages was attempting to create a
+# resource provider with a duplicated name or UUID.
+
+fixtures:
+    - APIFixture
+
+defaults:
+    request_headers:
+        x-auth-token: admin
+        accept: application/json
+        content-type: application/json
+
+tests:
+- name: post new resource provider
+  POST: /resource_providers
+  data:
+      name: shared disk
+      uuid: $ENVIRON['RP_UUID']
+  status: 201
+
+- name: same uuid different name
+  POST: /resource_providers
+  data:
+      name: shared disk X
+      uuid: $ENVIRON['RP_UUID']
+  status: 409
+  response_strings:
+      - "Conflicting resource provider uuid: $ENVIRON['RP_UUID']"
+
+- name: same name different uuid
+  POST: /resource_providers
+  data:
+      name: shared disk
+      uuid: 2c2059d8-005c-4f5c-82b1-b1701b1a29b7
+  status: 409
+  response_strings:
+      - 'Conflicting resource provider name: shared disk'
+
+# On this one, don't test for which field was a duplicate because
+# that depends on how the database reports columns.
+- name: same name same uuid
+  POST: /resource_providers
+  data:
+      name: $ENVIRON['RP_NAME']
+      uuid: $ENVIRON['RP_UUID']
+  status: 409
+  response_strings:
+      - Conflicting resource provider
diff --git a/nova/tests/functional/api/openstack/placement/gabbits/resource-provider.yaml b/nova/tests/functional/api/openstack/placement/gabbits/resource-provider.yaml
index 9ad2de113c..1ae19be47b 100644
--- a/nova/tests/functional/api/openstack/placement/gabbits/resource-provider.yaml
+++ b/nova/tests/functional/api/openstack/placement/gabbits/resource-provider.yaml
@@ -45,6 +45,8 @@ tests:
   response_forbidden_headers:
       - content-type
 
+# On this one, don't test for which field was a duplicate because
+# that depends on how the database reports columns.
 - name: try to create same all again
   POST: /resource_providers
   request_headers:
@@ -54,7 +56,7 @@ tests:
       uuid: $ENVIRON['RP_UUID']
   status: 409
   response_strings:
-      - Conflicting resource provider $ENVIRON['RP_NAME'] already exists
+      - Conflicting resource provider
   response_json_paths:
       $.errors[0].title: Conflict
 
@@ -67,7 +69,7 @@ tests:
       uuid: ada30fb5-566d-4fe1-b43b-28a9e988790c
   status: 409
   response_strings:
-      - Conflicting resource provider $ENVIRON['RP_NAME'] already exists
+      - "Conflicting resource provider name: $ENVIRON['RP_NAME'] already exists"
   response_json_paths:
       $.errors[0].title: Conflict