Either nova-metadata-api service or nova-api can provide metadata service. But if we use nova-metadata-api to provide metadata service, we should not include "metadata" in "enabled_apis". Because they listen the same port. See http://docs.openstack.org/admin-guide-cloud/content/section_metadata-service.html.
Either nova-metadata-api service or nova-api can provide metadata service. But if we use nova-metadata-api to provide metadata service, we should not include "metadata" in "enabled_apis". Because they listen the same port. See http:// docs.openstack. org/admin- guide-cloud/ content/ section_ metadata- service. html.