private AddServiceInfo recommendConfiguration(AddServiceInfo request) {
    LOG.info("Recommending configuration for {}", request);
    return stackAdvisorAdapter.recommendConfigurations(request);
  }
Requests config recommendation from the stack advisor.
@return new request, updated with the recommended config
@throws IllegalArgumentException if the request cannot be satisfied
ambari-server/src/main/java/org/apache/ambari/server/topology/addservice/AddServiceOrchestrator.java