ambari/ambari-web/app/controllers/main/admin/highAvailability/step7_controller.js

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var App = require('app');

App.HighAvailabilityWizardStep7Controller = App.HighAvailabilityProgressPageController.extend({

  commands: ['startZooKeeperServers', 'startNameNode'],

  startZooKeeperServers: function () {
    var hostNames = this.get('content.masterComponentHosts').filterProperty('component', 'ZOOKEEPER').mapProperty('hostName');
    this.startComponent('ZOOKEEPER_SERVER', hostNames);
  },

  startNameNode: function () {
    var hostName = this.get('content.masterComponentHosts').findProperty('isCurNameNode').mapProperty('hostName');
    this.startComponent('NAMENODE', hostName);
  }
});