public ApiRequest startAllServicesInCluster(String clusterName) throws AmbariApiException {
ApiServiceInfo serviceInfo = new ApiServiceInfo();
serviceInfo.setState(ApiServiceStatus.STARTED.name());
ApiBody body = new ApiBody();
body.setServiceInfo(serviceInfo);
ApiRequestInfo requestInfo = new ApiRequestInfo();
requestInfo.setContext("Start All Services");
ApiPutRequest stopRequest = new ApiPutRequest(requestInfo, body);
String request = ApiUtils.objectToJson(stopRequest);
logger.debug("The request in start cluster is :" + request);
Response response = null;