The API call you provided does not only start the components with stale configs, but actually all components. It has two typos, this one worked for me: curl -u admin:admin -H "X-Requested-By: ambari" -X POST -d '{"RequestInfo":{"command":"RESTART","context":"Restart all required services","operation_level":"host_components"},"Requests/resource_filters":[{"hosts_predicate":"HostRoles/stale_configs=true"}]}' http://erie1.example.com:8080/api/v1/clusters/ErieCluster/requests ... View more