}
func (r *registry) getNamespaceByNamePersistence(name namespace.Name) (*namespace.Namespace, error) {
registry.go
request := &persistence.GetNamespaceRequest{
Name: name.String(),
}
ns, err := r.getNamespacePersistence(request)
if err != nil {
if _, ok := err.(*serviceerror.NamespaceNotFound); ok {
r.readthroughNotFoundCache.Put(name.String(), struct{}{})