ambari/ambari-web/app/views/main/dashboard/service/hdfs.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');
var date = require('utils/date');

App.MainDashboardServiceHdfsView = App.MainDashboardServiceView.extend({
  templateName: require('templates/main/dashboard/service/hdfs'),
  serviceName: 'HDFS',
  Chart: App.ChartPieView.extend({
    service: null,
    data: function () {
      var total = this.get('service.capacityTotal') + 0;
      var remaining = (this.get('service.capacityRemaining') + 0);
      var used = total - remaining;
      return [ used, remaining ];
    }.property('service.capacityUsed', 'service.capacityTotal')
  }),

  nodeUptime: function () {
    var uptime = this.get('service').get('nameNodeStartTime');
    var formatted = date.timingFormat((new Date().getTime() - uptime));
    return this.t('dashboard.services.uptime').format(formatted);
  }.property("service.nameNodeStartTime"),

  nodeWebUrl: function () {
    return "http://" + this.get('service').get('nameNode').get('publicHostName') + ":50070";
  }.property('service.nameNode'),

  nodeHeap: function () {
    var memUsed = this.get('service').get('jvmMemoryHeapUsed') * 1000000;
    var memCommitted = this.get('service').get('jvmMemoryHeapCommitted') * 1000000;
    var percent = memCommitted > 0 ? ((100 * memUsed) / memCommitted) : 0;
    return this.t('dashboard.services.hdfs.nodes.heapUsed').format(memUsed.bytesToSize(1, 'parseFloat'), memCommitted.bytesToSize(1, 'parseFloat'), percent.toFixed(1));

  }.property('service.jvmMemoryHeapUsed', 'service.jvmMemoryHeapCommitted'),

  summaryHeader: function () {
    var text = this.t("dashboard.services.hdfs.summary");
    var svc = this.get('service');
    var liveCount = svc.get('liveDataNodes').get('length');
    var totalCount = svc.get('dataNodes').get('length');
    var total = svc.get('capacityTotal') + 0;
    var used = svc.get('capacityUsed') + 0;
    var percentRemaining = (100 - Math.round((used * 100) / total)).toFixed(1);
    if (percentRemaining == "NaN") {
      percentRemaining = "n/a ";
    }
    return text.format(liveCount, totalCount, percentRemaining);
  }.property('service.liveDataNodes', 'service.dataNodes', 'service.capacityUsed', 'service.capacityTotal'),

  capacity: function () {
    var text = this.t("dashboard.services.hdfs.capacityUsed");
    var total = this.get('service.capacityTotal') + 0;
    var used = total - (this.get('service.capacityRemaining') + 0);
    var percent = total > 0 ? ((used * 100) / total).toFixed(1) : 0;
    if (percent == "NaN") {
      percent = "n/a ";
    }
    return text.format(used.bytesToSize(1, 'parseFloat'), total.bytesToSize(1, 'parseFloat'), percent);
  }.property('service.capacityUsed', 'service.capacityTotal'),

  dataNodeComponent: function () {
    return App.Component.find().findProperty('componentName', 'DATANODE');
  }.property('+'),

  isCollapsed: false,

  toggleInfoView: function () {
    $('#hdfs-info').toggle('blind', 200);
    this.set('isCollapsed', !this.isCollapsed);
  },

  isSafeMode: function () {
    var safeMode = this.get('service.safeModeStatus');
    return safeMode != null && safeMode.length > 0;
  }.property('service.safeModeStatus')
});