--- features: - | Added configuration option ``[api]/local_metadata_per_cell`` to allow users to run Nova metadata API service per cell. Doing this could provide performance improvement and data isolation in a multi-cell deployment. But it has some caveats, see the `Metadata api service in cells v2 layout`_ for more details. .. _Metadata api service in cells v2 layout: https://docs.openstack.org/nova/latest/user/cellsv2-layout.html#nova-metadata-api-service