web/index.html

   1 <!DOCTYPE html>
   2 <html lang="en">
   3 <head>
   4         <title>netdata dashboard</title>
   5
   6         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   7         <meta charset="utf-8">
   8         <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
   9         <meta name="viewport" content="width=device-width, initial-scale=1">
  10         <meta name="apple-mobile-web-app-capable" content="yes">
  11         <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
  12         <meta name="author" content="costa@tsaousis.gr">
  13
  14         <link rel="shortcut icon" href="images/seo-performance-multi-size.ico">
  15
  16         <link rel="apple-touch-icon" href="images/seo-performance-72.png">
  17         <link rel="apple-touch-icon" sizes="72x72" href="images/seo-performance-72.png">
  18         <link rel="apple-touch-icon" sizes="114x114" href="images/seo-performance-114.png">
  19
  20         <link rel="icon" type="image/png" sizes="512x512" href="images/seo-performance-512.png">
  21         <link rel="icon" type="image/png" sizes="256x256" href="images/seo-performance-256.png">
  22         <link rel="icon" type="image/png" sizes="128x128" href="images/seo-performance-128.png">
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  26         <link rel="icon" type="image/png" sizes="24x24" href="images/seo-performance-24.png">
  27         <link rel="icon" type="image/png" sizes="16x16" href="images/seo-performance-16.png">
  28
  29         <style>
  30
  31         /* prevent body from hiding under the navbar */
  32         body {
  33                 padding-top: 50px;
  34         }
  35
  36         .modal-wide .modal-dialog {
  37                 width: 80%;
  38         }
  39
  40         /* fix # anchors scrolling under the navbar
  41            https://github.com/twbs/bootstrap/issues/1768#issuecomment-46519033
  42          */
  43         h1 {
  44                 position: relative;
  45                 z-index: -1;
  46         }
  47         h2 {
  48                 position: relative;
  49                 z-index: -2;
  50         }
  51         h1:before, h2:before {
  52                 display: block;
  53                 content: " ";
  54                 margin-top: -70px;
  55                 height: 70px;
  56                 visibility: hidden;
  57         }
  58
  59         .p {
  60                 display: block;
  61                 margin-top: 15px;
  62         }
  63
  64         .option-row,
  65         .option-control {
  66                 vertical-align: top;
  67                 padding: 10px;
  68                 padding-top: 30px;
  69                 padding-left: 30px;
  70         }
  71
  72         .option-info {
  73                 padding: 10px;
  74         }
  75
  76         .chart-message {
  77                 display: block;
  78                 margin-top: 10px;
  79         }
  80
  81         .container {
  82                 width: 90% !important;
  83         }
  84
  85         #masthead h1 {
  86                 /*font-size: 30px;*/
  87                 line-height: 1;
  88                 padding-top: 30px;
  89         }
  90
  91         #masthead .well {
  92                 margin-top:4%;
  93         }
  94
  95         /* fix the navbar shifting when a modal is open */
  96         /* https://github.com/twbs/bootstrap/issues/14040#issuecomment-159891033 */
  97         body.modal-open{
  98                 width: 100% !important;
  99                 padding-right: 0 !important;
 100 /*              overflow-y: scroll !important; */
 101 /*              position: fixed !important;*/
 102                 overflow: visible;
 103         }
 104
 105         /*
 106          * Side navigation
 107          *
 108          * Scrollspy and affixed enhanced navigation to highlight sections and secondary
 109          * sections of docs content.
 110          */
 111
 112         .affix {
 113                 position: static;
 114                 top: 70px !important;
 115                 /*width: 220px;*/
 116         }
 117
 118         .affix-top {
 119                 /*width: 220px;*/
 120         }
 121
 122         .dashboard-sidebar {
 123                 max-height: calc(100% - 70px) !important;
 124                 overflow-y: auto;
 125                 /*width: 220px !important;*/
 126         }
 127
 128         /* By default it's not affixed in mobile views, so undo that */
 129         .dashboard-sidebar.affix {
 130                 position: static;
 131         }
 132
 133         @media (min-width: 768px) {
 134                 .dashboard-sidebar {
 135                         padding-left: 20px;
 136                 }
 137         }
 138
 139         /* First level of nav */
 140         .dashboard-sidenav {
 141                 margin-top: 20px;
 142                 margin-bottom: 20px;
 143         }
 144
 145         /* All levels of nav */
 146         .dashboard-sidebar .nav > li > a {
 147                 display: block;
 148                 padding: 4px 20px;
 149                 font-size: 13px;
 150                 font-weight: 500;
 151                 color: #767676;
 152         }
 153         .dashboard-sidebar .nav > li > a:hover,
 154         .dashboard-sidebar .nav > li > a:focus {
 155                 padding-left: 19px;
 156                 color: #563d7c;
 157                 text-decoration: none;
 158                 background-color: transparent;
 159                 border-left: 1px solid #563d7c;
 160         }
 161         .dashboard-sidebar .nav > .active > a,
 162         .dashboard-sidebar .nav > .active:hover > a,
 163         .dashboard-sidebar .nav > .active:focus > a {
 164                 padding-left: 18px;
 165                 font-weight: bold;
 166                 color: #563d7c;
 167                 background-color: transparent;
 168                 border-left: 2px solid #563d7c;
 169         }
 170
 171         /* Nav: second level (shown on .active) */
 172         .dashboard-sidebar .nav .nav {
 173                 display: none; /* Hide by default, but at >768px, show it */
 174                 padding-bottom: 10px;
 175         }
 176         .dashboard-sidebar .nav .nav > li > a {
 177                 padding-top: 1px;
 178                 padding-bottom: 1px;
 179                 padding-left: 30px;
 180                 font-size: 12px;
 181                 font-weight: normal;
 182         }
 183         .dashboard-sidebar .nav .nav > li > a:hover,
 184         .dashboard-sidebar .nav .nav > li > a:focus {
 185                 padding-left: 29px;
 186         }
 187         .dashboard-sidebar .nav .nav > .active > a,
 188         .dashboard-sidebar .nav .nav > .active:hover > a,
 189         .dashboard-sidebar .nav .nav > .active:focus > a {
 190                 padding-left: 28px;
 191                 font-weight: 500;
 192         }
 193
 194         /* Back to top (hidden on mobile) */
 195         .back-to-top,
 196         .dashboard-theme-toggle {
 197                 display: none;
 198                 padding: 4px 10px;
 199                 margin-top: 10px;
 200                 margin-left: 10px;
 201                 font-size: 12px;
 202                 font-weight: 500;
 203                 color: #999;
 204         }
 205         .back-to-top:hover,
 206         .dashboard-theme-toggle:hover {
 207                 color: #563d7c;
 208                 text-decoration: none;
 209         }
 210         .dashboard-theme-toggle {
 211                 margin-top: 0;
 212         }
 213
 214         @media (min-width: 768px) {
 215                 .back-to-top,
 216                 .dashboard-theme-toggle {
 217                         display: block;
 218                 }
 219
 220                 /* Widen the fixed sidebar */
 221                 .dashboard-sidebar.affix,
 222                 .dashboard-sidebar.affix-top,
 223                 .dashboard-sidebar.affix-bottom {
 224                         width: 200px !important;
 225                 }
 226
 227                 .dashboard-sidebar.affix {
 228                         position: fixed; /* Undo the static from mobile first approach */
 229                         top: 20px;
 230                 }
 231
 232                 .dashboard-sidebar.affix-bottom {
 233                         position: absolute; /* Undo the static from mobile first approach */
 234                 }
 235
 236                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 237                 .dashboard-sidebar.affix .dashboard-sidenav {
 238                         margin-top: 0;
 239                         margin-bottom: 0;
 240                 }
 241         }
 242
 243         /* Show and affix the side nav when space allows it */
 244         @media (min-width: 992px) {
 245                 .dashboard-sidebar .nav > .active > ul {
 246                         display: block;
 247                 }
 248
 249                 /* Widen the fixed sidebar */
 250                 .dashboard-sidebar.affix,
 251                 .dashboard-sidebar.affix-top,
 252                 .dashboard-sidebar.affix-bottom {
 253                         width: 200px !important;
 254                 }
 255                 .dashboard-sidebar.affix {
 256                         position: fixed; /* Undo the static from mobile first approach */
 257                         top: 20px;
 258                 }
 259                 .dashboard-sidebar.affix-bottom {
 260                         position: absolute; /* Undo the static from mobile first approach */
 261                 }
 262                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 263                 .dashboard-sidebar.affix .dashboard-sidenav {
 264                         margin-top: 0;
 265                         margin-bottom: 0;
 266                 }
 267         }
 268
 269         @media (min-width: 1200px) {
 270                 /* Widen the fixed sidebar again */
 271                 .dashboard-sidebar.affix-bottom,
 272                 .dashboard-sidebar.affix-top,
 273                 .dashboard-sidebar.affix {
 274                         width: 263px;
 275                 }
 276         }
 277         </style>
 278
 279         <!-- you can set your netdata server globally, by ucommenting this -->
 280         <!-- you can also give a different server per chart, with the attribute: data-host="http://netdata.server:19999" -->
 281         <!-- <script> netdataServer = "http://box:19999"; </script> -->
 282
 283         <!-- check which theme to use -->
 284         <script>
 285                 function loadLocalStorage(name) {
 286                         var ret = null;
 287
 288                         try {
 289                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object')
 290                                         ret = localStorage.getItem(name);
 291                         }
 292                         catch(error) {
 293                                 ;
 294                         }
 295
 296                         if(typeof ret === 'undefined' || ret === null)
 297                                 return null;
 298
 299                         return ret;
 300                 }
 301
 302                 function saveLocalStorage(name, value) {
 303                         try {
 304                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object') {
 305                                         localStorage.setItem(name, value.toString());
 306                                         return true;
 307                                 }
 308                         }
 309                         catch(error) {
 310                                 ;
 311                         }
 312
 313                         return false;
 314                 }
 315
 316                 function getTheme(def) {
 317                         var ret = loadLocalStorage('netdataTheme');
 318                         if(typeof ret === 'undefined' || ret === null || ret === 'undefined')
 319                                 return def;
 320                         else
 321                                 return ret;
 322                 }
 323                 var netdataTheme = getTheme('slate');
 324
 325                 function setTheme(theme) {
 326                         if(theme === netdataTheme) return false;
 327
 328                         return saveLocalStorage('netdataTheme', theme);
 329                 }
 330         </script>
 331
 332         <!-- load the dashboard manager - it will do the rest -->
 333         <script type="text/javascript" src="dashboard.js?v34"></script>
 334 </head>
 335
 336 <body data-spy="scroll" data-target="#sidebar">
 337         <nav class="navbar navbar-default navbar-fixed-top" role="banner">
 338                 <div class="container">
 339                         <div class="navbar-header">
 340                                 <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".navbar-collapse">
 341                                         <span class="sr-only">Toggle navigation</span>
 342                                         <span class="icon-bar"></span>
 343                                         <span class="icon-bar"></span>
 344                                         <span class="icon-bar"></span>
 345                                 </button>
 346                                 <a href="/" class="navbar-brand" id="hostname">netdata</a>
 347                         </div>
 348                         <nav id="demosites_nav" class="collapse navbar-collapse navbar-left" role="navigation">
 349                                 <ul class="nav navbar-nav">
 350                                         <li class="dropdown">
 351                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">demo sites <strong class="caret"></strong></a>
 352                                                 <ul class="dropdown-menu scrollable-menu inpagemenu" role="menu">
 353                                                         <li id="demo_eu"><a href="//netdata1.firehol.org?nowelcome">EU - London (DigitalOcean.com)</a></li>
 354                                                         <li id="demo_us"><a href="//netdata2.firehol.org?nowelcome">US - Atlanta (CDN77.com)</a></li>
 355                                                         <li id="demo_gr"><a href="//netdata3.firehol.org?nowelcome">EU - Greece</a></li>
 356                                                         <li role="separator" class="divider"></li>
 357                                                         <li id="demo_tv"><a href="tv.html">TV Dashboard for 2 servers</a></li>
 358                                                         <li id="demosites"><a href="demosites.html">Dashboard for monitoring netdata demo sites</a></li>
 359                                                 </ul>
 360                                         </li>
 361                                 </ul>
 362                         </nav>
 363                         <nav class="collapse navbar-collapse navbar-right" role="navigation">
 364                                 <ul class="nav navbar-nav">
 365                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 366                                         <li><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 367                                         <li id="updateButton"><a href="#" class="btn" data-toggle="modal" data-target="#updateModal"><i class="fa fa-cloud-download"></i> update</a></li>
 368 <!--                                    <li><a href="old/" class="btn" target="_blank"><i class="fa fa-step-backward"></i> old dashboard</a></li> -->
 369                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 370 <!--                                    <li><a href="#sec">Visualize</a></li>
 371                                         <li><a href="#sec">Prototype</a></li>
 372 -->                             </ul>
 373                         </nav>
 374                 </div>
 375         </nav>
 376
 377         <div id="masthead" style="display: none;">
 378                 <div class="container">
 379                         <div class="row">
 380                                 <div class="col-md-7">
 381                                         <h1>Netdata
 382                                                 <p class="lead">Real-time performance monitoring, in the greatest possible detail</p>
 383                                         </h1>
 384                                 </div>
 385                                 <div class="col-md-5">
 386                                         <div class="well well-lg">
 387                                                 <div class="row">
 388                                                 <div class="col-md-6">
 389                                                         <b>Drag</b> charts to pan.
 390                                                         <b>Shift + wheel</b> on them, to zoom in and out.
 391                                                         <b>Double-click</b> on them, to reset.
 392                                                         <b>Hover</b> on them too!
 393                                                         </div>
 394                                                 <div class="col-md-6">
 395                                                         <div data-netdata="system.intr" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-dygraph-type="line" data-dygraph-strokewidth="3" data-dygraph-smooth="true" data-dygraph-highlightcirclesize="6" data-after="-90" data-height="60px" data-colors="#C66"></div>
 396                                                         </div>
 397                                                 </div>
 398                                         </div>
 399                                 </div>
 400                         </div>
 401                 </div>
 402         </div>
 403
 404         <div class="container">
 405                 <div class="row">
 406                         <div class="col-md-10" role="main">
 407                                 <div id="charts_div"></div>
 408                         </div>
 409                         <div class="col-md-2" role="complementary">
 410                                 <nav class="dashboard-sidebar hidden-print hidden-xs hidden-sm" id="sidebar" role="menu"></nav>
 411                         </div>
 412                 </div>
 413         </div>
 414
 415         <div id="footer" class="container" style="display: none;">
 416                 <div class="row">
 417                         <div class="col-md-10" role="main">
 418                                 <div class="p">
 419                                         <big><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></big><br/>
 420                                         <i class="fa fa-copyright"></i> Copyright 2016, Costa Tsaousis.<br/>
 421                                         Released under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank">GPL v3 or later</a>.<br/>
 422                                 </div>
 423                                 <div class="p">
 424                                         <small>
 425                                                 <a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a> re-distributes these software tools:
 426
 427                                                 <i class="fa fa-circle"></i> The excellent <a href="http://dygraphs.com/" target="_blank">Dygraphs.com</a> web chart library,
 428                                                 <i class="fa fa-copyright"></i> Copyright 2009, Dan Vanderkam, <a href="http://dygraphs.com/legal.html" target="_blank">MIT License</a>
 429
 430                                                 <i class="fa fa-circle"></i> <a href="http://omnipotent.net/jquery.sparkline/" target="_blank">jQuery Sparklines</a> web chart library,
 431                                                 <i class="fa fa-copyright"></i> Copyright 2009-2012, Splunk Inc., <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">New BSD License</a>
 432
 433                                                 <i class="fa fa-circle"></i> <a href="http://benpickles.github.io/peity/" target="_blank">Peity</a> web chart library,
 434                                                 <i class="fa fa-copyright"></i> Copyright 2009-2015, Ben Pickles, <a href="https://github.com/benpickles/peity/blob/master/MIT-LICENCE" target="_blank">MIT License</a>
 435
 436                                                 <i class="fa fa-circle"></i> <a href="https://rendro.github.io/easy-pie-chart/" target="_blank">Easy Pie Chart</a> web chart library,
 437                                                 <i class="fa fa-copyright"></i> Copyright 2013, Robert Fleischmann, <a href="https://github.com/rendro/easy-pie-chart/blob/master/LICENSE" target="_blank">MIT License</a>
 438
 439                                                 <i class="fa fa-circle"></i> <a href="http://bernii.github.io/gauge.js/" target="_blank">Gauge.js</a> web chart library,
 440                                                 <i class="fa fa-copyright"></i> Copyright, Bernard Kobos, <a href="http://bernii.github.io/gauge.js/" target="_blank">MIT License</a>
 441
 442                                                 <i class="fa fa-circle"></i> <a href="https://jquery.org/" target="_blank">jQuery</a>,
 443                                                 <i class="fa fa-copyright"></i> Copyright 2015, jQuery Foundation, <a href="https://jquery.org/license/" target="_blank">MIT License</a>
 444
 445                                                 <i class="fa fa-circle"></i> <a href="http://getbootstrap.com/getting-started/" target="_blank">Bootstrap</a>,
 446                                                 <i class="fa fa-copyright"></i> Copyright 2015, Twitter, <a href="http://getbootstrap.com/getting-started/#license-faqs" target="_blank">MIT License</a>
 447
 448                                                 <i class="fa fa-circle"></i> <a href="http://www.bootstraptoggle.com/" target="_blank">Bootstrap Toggle</a>,
 449                                                 <i class="fa fa-copyright"></i> Copyright (c) 2011-2014 Min Hur, The New York Times Company, <a href="https://github.com/minhur/bootstrap-toggle/blob/master/LICENSE" target="_blank">MIT License</a>
 450
 451                                                 <i class="fa fa-circle"></i> <a href="https://jamesflorentino.github.io/nanoScrollerJS/" target="_blank">NanoScroller</a>,
 452                                                 <i class="fa fa-copyright"></i> Copyright 2012, James Florentino, <a href="https://github.com/jamesflorentino/nanoScrollerJS/blob/master/LICENSE" target="_blank">MIT License</a>
 453
 454                                                 <i class="fa fa-circle"></i> <a href="https://github.com/marcj/css-element-queries" target="_blank">CSS Element Queries</a>,
 455                                                 <i class="fa fa-copyright"></i> Copyright Marc J. Schmidt, <a href="https://github.com/marcj/css-element-queries/blob/master/LICENSE" target="_blank">MIT License</a>
 456
 457                                                 <i class="fa fa-circle"></i> <a href="https://fortawesome.github.io/Font-Awesome/" target="_blank">FontAwesome</a>,
 458                                                 <i class="fa fa-copyright"></i> Created by Dave Gandy, Font: <a href="http://scripts.sil.org/OFL" target="_blank">SIL OFL 1.1 License</a>, CSS: <a href="http://opensource.org/licenses/mit-license.html" target="_blank">MIT License</a>
 459
 460                                                 <i class="fa fa-circle"></i> <a href="http://www.iconsdb.com/soylent-red-icons/seo-performance-icon.html" target="_blank">IconsDB.com Icons</a>, Icons provided as CC0 1.0 Universal (CC0 1.0) Public Domain Dedication.
 461
 462                                                 <i class="fa fa-circle"></i> <a href="http://morrisjs.github.io/morris.js/" target="_blank">morris.js</a>,
 463                                                 <i class="fa fa-copyright"></i> Copyright 2013, Olly Smith, <a href="http://morrisjs.github.io/morris.js/" target="_blank">Simplified BSD License</a>
 464
 465                                                 <i class="fa fa-circle"></i> <a href="http://raphaeljs.com/" target="_blank">Raphaël</a>,
 466                                                 <i class="fa fa-copyright"></i> Copyright 2008, Dmitry Baranovskiy, <a href="http://raphaeljs.com/license.html" target="_blank">MIT License</a>
 467
 468                                                 <i class="fa fa-circle"></i> <a href="http://C3js.org/" target="_blank">C3</a>,
 469                                                 <i class="fa fa-copyright"></i> Copyright 2013, Masayuki Tanaka, <a href="https://github.com/masayuki0812/c3/blob/master/LICENSE" target="_blank">MIT License</a>
 470
 471                                                 <i class="fa fa-circle"></i> <a href="http://D3js.org/" target="_blank">D3</a>,
 472                                                 <i class="fa fa-copyright"></i> Copyright 2015, Mike Bostock, <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">BSD License</a>
 473
 474                                         </small>
 475                                 </div>
 476                         </div>
 477                 </div>
 478         </div>
 479
 480         <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
 481                 <div class="modal-dialog modal-lg" role="document">
 482                         <div class="modal-content">
 483                                 <div class="modal-header">
 484                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 485                                         <h4 class="modal-title" id="welcomeModalLabel">Welcome!</h4>
 486                                 </div>
 487                                 <div class="modal-body">
 488                                                 <div class="p">
 489                                                 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> is the fastest way to visualize metrics. It is a resource efficient, highly optimized system for collecting and visualizing any type of real-time time series data, from CPU usage, disk activity, SQL queries, API calls, web site visitors, etc.
 490                                                 </div>
 491                                                 <div class="p">
 492                                                 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> tries to visualize the truth of <b>now</b>, in its <b>greatest detail</b>, so that you can get insights of what is happening now and what just happened, on your systems and applications.
 493                                                 </div>
 494                                                 <div class="p">
 495                                                 To make a chart in <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b>, you just need a <b>number</b>. Just a number you can read somehow. <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> will turn this number to a real time, interactive, web chart. For collecting these numbers, it supports <a href="https://github.com/firehol/netdata/wiki/External-Plugins" target="_blank">external plugins</a>, even <a href="https://github.com/firehol/netdata/wiki/General-Info---charts.d" target="_blank">shell</a> or <a href="https://github.com/firehol/netdata/wiki/General-Info---charts.d" target="_blank">node.js</a> plugins. Any computer program, in any language, that can print a few lines of text on its standard output, can be a netdata data collector.
 496                                                 </div>
 497                                                 <div class="p">
 498                                                 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> can embed charts everywhere, like this one <div data-netdata="system.cpu" data-dimensions="system" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-show-value-of-system-at="system.cpu.system.modal.1"></div> (my CPU system usage which is <span id="system.cpu.system.modal.1" style="display: inline-block; width: 40px; text-align: right;"></span>%),
 499                                                 or this one <div data-netdata="ipv4.tcppackets" data-dimensions="received" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-show-value-of-received-at="ipv4.tcppackets.received.modal.1"></div> (my IPv4 received TCP packets, which are <span id="ipv4.tcppackets.received.modal.1" style="display: inline-block; width: 60px; text-align: right;"></span>/second).
 500                                                 </div>
 501                                                 <div class="p">
 502                                                 You can have <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> charts on your site too. Just give it a <code>div</code> and a real time chart, zoomable and draggable will appear (try it even on these tiny ones - <b>drag</b> them to pan horizontally, <b>shift + drag</b> to zoom in, on <b>chrome shift + mouse wheel</b> to zoom in/out, <b>double click</b> on them to reset them - don't be afraid of <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> performance - <a href="https://github.com/firehol/netdata/wiki/Performance" target="_blank">a raspberry pi 2 can sustain 300 charts updates per second</a>!).
 503                                                 </div>
 504                                                 <div class="p">
 505                                                 For more information please refer to the <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata wiki</a></b>.
 506                                                 </div>
 507                                 </div>
 508                                 <div class="modal-footer">
 509                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 510                                 </div>
 511                         </div>
 512                 </div>
 513         </div>
 514
 515         <div class="modal fade" id="helpModal" tabindex="-1" role="dialog" aria-labelledby="helpModalLabel">
 516                 <div class="modal-dialog modal-lg" role="document">
 517                         <div class="modal-content">
 518                                 <div class="modal-header">
 519                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 520                                         <h4 class="modal-title" id="helpModalLabel">Dashboard Help</h4>
 521                                 </div>
 522                                 <div class="modal-body">
 523
 524                                         <h4>Dygraphs (line, area and stacked area charts)</h4>
 525
 526                                         <!-- Nav tabs -->
 527                                         <ul class="nav nav-tabs" role="tablist">
 528                                                 <li role="presentation" class="active"><a href="#help_mouse" aria-controls="help_mouse" role="tab" data-toggle="tab">Mouse Interface</a></li>
 529                                                 <li role="presentation"><a href="#help_touch" aria-controls="help_touch" role="tab" data-toggle="tab">Touch Interface</a></li>
 530                                         </ul>
 531
 532                                         <!-- Tab panes -->
 533                                         <div class="tab-content">
 534                                                 <div role="tabpanel" class="tab-pane active" id="help_mouse">
 535                                                         <div class="p">
 536                                                                 <h4>Mouse Over / Hover</h4>
 537                                                                 Mouse over on a chart to show, at its legend, the values for the timestamp under the mouse (the chart will also highlight the point at the chart).
 538                                                                 <br/>
 539                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 540                                                         </div>
 541                                                         <hr/>
 542                                                         <div class="p">
 543                                                                 <h4>Drag Chart Contents</h4>
 544                                                                 Drag the contents of a chart to pan it horizontally.
 545                                                                 <br/>
 546                                                                 All the charts will follow soon after you let the chart alone (this little delay is by design: it speeds up your browser and lets you focus on what you are exploring).
 547                                                                 <br/>
 548                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double click</b> a panned chart.
 549                                                         </div>
 550                                                         <hr/>
 551                                                         <div class="p">
 552                                                                 <h4>Double Click</h4>
 553                                                                 Double Click a chart to reset all the charts to their default auto-refreshing state.
 554                                                         </div>
 555                                                         <hr/>
 556                                                         <div class="p">
 557                                                                 <h4>SHIFT + Drag</h4>
 558                                                                 While pressing the shift key, click on the contents of a chart and move the mouse to select an area, to zoom in. The other charts will follow too. Zooming is performed in two phases:
 559                                                                 <ul>
 560                                                                         <li>The already loaded chart contents are zoomed (low resolution)</li>
 561                                                                         <li>New data are transferred from the netdata server, to refresh the chart with possibly more detail.</li>
 562                                                                 </ul>
 563                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 564                                                         </div>
 565                                                         <hr/>
 566                                                         <div class="p">
 567                                                                 <h4>SHIFT + Mouse Wheel <small>(does not work on firefox and IE/Edge)</small></h4>
 568                                                                 While pressing the shift key and the mouse pointer is over the contents of a chart, scroll the mouse wheel to zoom in or out. This kind of zooming is aligned to center below the mouse pointer. The other charts will follow too.
 569                                                                 <br/>
 570                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 571                                                         </div>
 572                                                         <hr/>
 573                                                         <div class="p">
 574                                                                 <h4>Legend Operations</h4>
 575                                                                 Click on the label or value of a dimension, will select / un-select this dimension.
 576                                                                 <br/>
 577                                                                 You can press any of the SHIFT or CONTROL keys and then click on legend labels or values, to select / un-select multiple dimensions.
 578                                                         </div>
 579                                                 </div>
 580                                                 <div role="tabpanel" class="tab-pane" id="help_touch">
 581                                                         <div class="p">
 582                                                                 <h4>Single Tap</h4>
 583                                                                 Single Tap on the contents of a chart to show, at its legend, the values for the timestamp tapped (the chart will also highlight the point at the chart).
 584                                                                 <br/>
 585                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 586                                                         </div>
 587                                                         <hr/>
 588                                                         <div class="p">
 589                                                                 <h4>Drag Chart Contents</h4>
 590                                                                 Touch and Drag the contents of a chart to pan it horizontally.
 591                                                                 <br/>
 592                                                                 All the charts will follow soon after you let the chart alone (this little delay is by design: it speeds up your browser and lets you focus on what you are exploring).
 593                                                                 <br/>
 594                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double tap</b> a panned chart.
 595                                                         </div>
 596                                                         <hr/>
 597                                                         <div class="p">
 598                                                                 <h4>Double Tap</h4>
 599                                                                 Double tap a chart to reset all the charts to their default auto-refreshing state.
 600                                                         </div>
 601                                                         <hr/>
 602                                                         <div class="p">
 603                                                                 <h4>Zoom <small>(does not work on firefox and IE/Edge)</small></h4>
 604                                                                 With two fingers, zoom in or out.
 605                                                                 <br/>
 606                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 607                                                         </div>
 608                                                         <hr/>
 609                                                         <div class="p">
 610                                                                 <h4>Legend Operations</h4>
 611                                                                 Tap on the label or value of a dimension, will select / un-select this dimension.
 612                                                         </div>
 613                                                 </div>
 614                                         </div>
 615                                 </div>
 616                                 <div class="modal-footer">
 617                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 618                                 </div>
 619                         </div>
 620                 </div>
 621         </div>
 622
 623         <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
 624                 <div class="modal-dialog modal-lg" role="document">
 625                         <div class="modal-content">
 626                                 <div class="modal-header">
 627                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 628                                         <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
 629                                 </div>
 630                                 <div class="modal-body">
 631                                         <center>
 632                                                 <small style="color: #BBBBBB;">These are browser settings. Each viewer has its own. They do not affect the operation of your netdata server.
 633                                                 <br/>
 634                                                 Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
 635                                                 <br/>
 636                                                 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="resetDashboardOptions(); return false;">here</a>.</small>
 637                                         </center>
 638                                         <div style="padding: 10px;"></div>
 639
 640                                         <!-- Nav tabs -->
 641                                         <ul class="nav nav-tabs" role="tablist">
 642                                                 <li role="presentation" class="active"><a href="#settings_performance" aria-controls="settings_performance" role="tab" data-toggle="tab">Performance</a></li>
 643                                                 <li role="presentation"><a href="#settings_sync" aria-controls="settings_sync" role="tab" data-toggle="tab">Synchronization</a></li>
 644                                                 <li role="presentation"><a href="#settings_visual" aria-controls="settings_visual" role="tab" data-toggle="tab">Visual</a></li>
 645                                         </ul>
 646
 647                                         <!-- Tab panes -->
 648                                         <div class="tab-content">
 649                                                 <div role="tabpanel" class="tab-pane active" id="settings_performance">
 650                                                         <form id="optionsForm1" method="get" class="form-horizontal">
 651                                                                 <div class="form-group">
 652                                                                         <table>
 653                                                                         <tr class="option-row">
 654                                                                                 <td class="option-control"><input id="stop_updates_when_focus_is_lost" type="checkbox" checked data-toggle="toggle" data-offstyle="danger" data-onstyle="success" data-on="On Focus" data-off="Always" data-width="110px"></td>
 655                                                                                 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
 656                                                                                         <small>When set to <b>On Focus</b>, the charts will stop being updated if the page / tab does not have the focus of the user. When set to <b>Always</b>, the charts will always be refreshed. Set it to <b>On Focus</b> it to lower the CPU requirements of the browser (and extend the battery of laptops and tablets) when this page does not have your focus. Set to <b>Always</b> to work on another window (i.e. change the settings of something) and have the charts auto-refresh in this window.</small>
 657                                                                                 </td>
 658                                                                                 </tr>
 659                                                                         <tr class="option-row">
 660                                                                                 <td class="option-control">
 661                                                                                 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
 662                                                                                 </td>
 663                                                                                 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
 664                                                                                         <small>When set to <b>Non Zero</b>, dimensions that have all their values (within the current view) set to zero will not be transferred from the netdata server (except if all dimensions of the chart are zero, in which case this setting does nothing - all dimensions are transferred and shown). When set to <b>All</b>, all dimensions will always be shown. Set it to <b>Non Zero</b> to lower the data transferred between netdata and your browser, lower the CPU requirements of your browser (fewer lines to draw) and increase the focus on the legends (fewer entries at the legends).</small>
 665                                                                                 </td>
 666                                                                                 </tr>
 667                                                                         <tr class="option-row">
 668                                                                                 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
 669                                                                                 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
 670                                                                                         <small>When set to <b>Destroy</b>, charts that are not in the current viewport of the browser (are above, or below the visible area of the page), will be destroyed and re-created if and when they become visible again. When set to <b>Hide</b>, the not-visible charts will be just hidden, to simplify the DOM and speed up your browser. Set it to <b>Destroy</b>, to lower the memory requirements of your browser. Set it to <b>Hide</b> for smoother page scrolling.</small>
 671                                                                                 </td>
 672                                                                                 </tr>
 673                                                                         </table>
 674                                                                 </div>
 675                                                         </form>
 676                                                 </div>
 677                                                 <div role="tabpanel" class="tab-pane" id="settings_sync">
 678                                                         <form id="optionsForm2" method="get" class="form-horizontal">
 679                                                                 <div class="form-group">
 680                                                                         <table>
 681                                                                         <tr class="option-row">
 682                                                                                 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequential" data-width="110px"></td>
 683                                                                                 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
 684                                                                                         <small>When set to <b>parallel</b>, visible charts are refreshed in parallel (all queries are sent to netdata server in parallel) and are rendered asynchronously. When set to <b>sequential</b> charts are refreshed one after another. Set it to parallel if your browser can cope with it (most modern browsers do), set it to sequential if you work on an older/slower computer.</small>
 685                                                                                 </td>
 686                                                                                 </tr>
 687                                                                         <tr class="option-row" id="concurrent_refreshes_row">
 688                                                                                 <td class="option-control"></td>
 689                                                                                 <td class="option-info">
 690                                                                                         <table>
 691                                                                                         <tr class="option-row">
 692                                                                                         <td class="option-control">
 693                                                                                         <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
 694                                                                                         </td>
 695                                                                                         <td class="option-info">
 696                                                                                         <strong>Shall we re-sync chart refreshes?</strong><br/>
 697                                                                                         <small>When set to <b>Resync</b>, the dashboard will attempt to re-synchronize all the charts so that they are refreshed concurrently. When set to <b>Best Effort</b>, each chart may be refreshed with a little time difference to the others. Normally, the dashboard starts refreshing them in parallel, but depending on the speed of your computer and the network latencies, charts start having a slight time difference. Setting this to <b>Resync</b> will attempt to re-synchronize the charts on every update. Setting it to <b>Best Effort</b> may lower the pressure on your browser and the network.</small>
 698                                                                                         </td>
 699                                                                                         </tr>
 700                                                                                         </table>
 701                                                                                 </td>
 702                                                                                 </tr>
 703                                                                         <tr class="option-row">
 704                                                                                 <td class="option-control"><input id="sync_selection" type="checkbox" checked data-toggle="toggle" data-on="Sync" data-off="Don't Sync" data-onstyle="success" data-offstyle="danger" data-width="110px"></td>
 705                                                                                 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
 706                                                                                         <small>When enabled, a selection on one chart will automatically select the same time on all other visible charts and the legends of all visible charts will be updated to show the selected values. When disabled, only the chart getting the user's attention will be selected. Enable it to get better insights of the data. Disable it if you are on a very slow computer that cannot actually do it.</small>
 707                                                                                 </td>
 708                                                                                 </tr>
 709                                                                         <tr class="option-row">
 710                                                                                 <td class="option-control"><input id="sync_pan_and_zoom" type="checkbox" checked data-toggle="toggle"  data-on="Sync" data-off="Don't Sync" data-onstyle="success" data-offstyle="danger" data-width="110px"></td>
 711                                                                                 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
 712                                                                                         <small>When enabled, pan and zoom operations on a chart will be replicated to all charts (even the ones that are not currently visible - of course only when they will become visible). When disabled, pan and zoom operations will not be propagated to other charts.</small>
 713                                                                                 </td>
 714                                                                                 </tr>
 715                                                                         </table>
 716                                                                 </div>
 717                                                         </form>
 718                                                 </div>
 719                                                 <div role="tabpanel" class="tab-pane" id="settings_visual">
 720                                                         <form id="optionsForm3" method="get" class="form-horizontal">
 721                                                                 <div class="form-group">
 722                                                                         <table>
 723                                                                         <tr class="option-row">
 724                                                                                 <td class="option-control"><input id="netdata_theme_control" type="checkbox" checked data-toggle="toggle" data-offstyle="danger" data-onstyle="success" data-on="Dark" data-off="White" data-width="110px"></td>
 725                                                                                 <td class="option-info"><strong>Which theme to use?</strong><br/>
 726                                                                                         <small>Netdata comes with two themes: <b>Dark</b> (the default) and <b>White</b>.
 727                                                                                         <br/>
 728                                                                                         <b>Switching this will reload the dashboard</b>.
 729                                                                                         </small>
 730                                                                                 </td>
 731                                                                                 </tr>
 732                                                                         <tr class="option-row">
 733                                                                                 <td class="option-control"><input id="show_help" type="checkbox" checked data-toggle="toggle" data-on="Help Me" data-off="No Help" data-width="110px"></td>
 734                                                                                 <td class="option-info"><strong>Do you need help?</strong><br/>
 735                                                                                         <small>Netdata can show some help in some areas to help you use the dashboard. If all these balloons bother you, disable them using this switch.
 736                                                                                         <br/>
 737                                                                                         <b>Switching this will reload the dashboard</b>.
 738                                                                                         </small>
 739                                                                                 </td>
 740                                                                                 </tr>
 741                                                                         <tr class="option-row">
 742                                                                                 <td class="option-control"><input id="pan_and_zoom_data_padding" type="checkbox" checked data-toggle="toggle"  data-on="Pad" data-off="Don't Pad" data-width="110px"></td>
 743                                                                                 <td class="option-info"><strong>Enable data padding when panning and zooming?</strong><br/>
 744                                                                                         <small>When set to <b>Pad</b> the charts will be padded with more data, both before and after the visible area, thus giving the impression the whole database is loaded. This padding will happen only after the first pan or zoom operation on the chart (initially all charts have only the visible data). When set to <b>Don't Pad</b> only the visible data will be transfered from the netdata server, even after the first pan and zoom operation.</small>
 745                                                                                 </td>
 746                                                                                 </tr>
 747                                                                         <tr class="option-row">
 748                                                                                 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle"  data-on="Smooth" data-off="Rough" data-width="110px"></td>
 749                                                                                 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
 750                                                                                         <small>When set to <b>Smooth</b> the charts libraries that support it, will plot smooth curves instead of simple straight lines to connect the points.
 751                                                                                         <br/>
 752                                                                                         Keep in mind <a href="http://dygraphs.com" target="_blank">dygraphs</a>, the main charting library in netdata dashboards, can only smooth line charts. It cannot smooth area or stacked charts. When set to <b>Rough</b>, this setting can lower the CPU resources consumed by your browser.</small>
 753                                                                                 </td>
 754                                                                                 </tr>
 755                                                                         </table>
 756                                                                 </div>
 757                                                         </form>
 758                                                 </div>
 759                                         </div>
 760                                 </div>
 761                                 <div class="modal-footer">
 762                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 763                                 </div>
 764                         </div>
 765                 </div>
 766         </div>
 767
 768
 769         <div class="modal fade" id="updateModal" tabindex="-1" role="dialog" aria-labelledby="updateModalLabel">
 770                 <div class="modal-dialog" role="document">
 771                         <div class="modal-content">
 772                                 <div class="modal-header">
 773                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 774                                         <h4 class="modal-title" id="updateModalLabel">Update Check</h4>
 775                                 </div>
 776                                 <div class="modal-body">
 777                                         Your netdata version: <b><code><span id="netdataVersion">Unknown</span></code></b>
 778                                         <br/>
 779                                         <div style="padding: 10px;"></div>
 780                                         <div id="versionCheckLog">Not checked yet. Please press the Check Now button.</div>
 781                                 </div>
 782                                 <div class="modal-footer">
 783                                         <a href="#" onclick="notifyForUpdate(true);" type="button" class="btn btn-default">Check Now</a>
 784                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 785                                 </div>
 786                         </div>
 787                 </div>
 788         </div>
 789
 790 <script>
 791
 792 var this_is_demo = null;
 793 function isdemo() {
 794         if(this_is_demo !== null) return this_is_demo;
 795         this_is_demo = false;
 796
 797         try {
 798                 if(typeof document.location.hostname === 'string') {
 799                         if(document.location.hostname === 'netdata.firehol.org' || document.location.hostname === 'netdata1.firehol.org') {
 800                                 document.getElementById("demo_eu").className = "active";
 801                                 this_is_demo = true;
 802                         }
 803                         else if(document.location.hostname === 'netdata2.firehol.org') {
 804                                 document.getElementById("demo_us").className = "active";
 805                                 this_is_demo = true;
 806                         }
 807                         else if(document.location.hostname === 'netdata3.firehol.org') {
 808                                 document.getElementById("demo_gr").className = "active";
 809                                 this_is_demo = true;
 810                         }
 811                 }
 812
 813                 if(!this_is_demo)
 814                         document.getElementById("demosites_nav").style.visibility = "hidden";
 815         }
 816         catch(error) {
 817                 ;
 818         }
 819
 820         return this_is_demo;
 821 }
 822
 823 if(isdemo()) {
 824         document.getElementById('masthead').style.display = 'block';
 825 }
 826
 827 var options = {
 828         sparklines_registry: {},
 829         submenu_names: {},
 830         data: null,
 831         hostname: 'netdata_server', // will be overwritten by the netdata server
 832         categories: new Array(),
 833         categories_idx: {},
 834         families: new Array(),
 835         families_idx: {},
 836
 837         chartsPerRow: 0,
 838         chartsMinWidth: 1450,
 839         chartsHeight: 180,
 840         sparklinesHeight: 60
 841 };
 842
 843 // generate a sparkline
 844 // used in the documentation
 845 function sparkline(chart, dimension, units) {
 846         var key = chart + '.' + dimension;
 847
 848         if(typeof units === 'undefined')
 849                 units = '';
 850
 851         if(typeof options.sparklines_registry[key] === 'undefined')
 852                 options.sparklines_registry[key] = { count: 1 };
 853         else
 854                 options.sparklines_registry[key].count++;
 855
 856         key = key + '.' + options.sparklines_registry[key].count;
 857
 858         var h = '<div data-netdata="' + chart + '" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-dimensions="' + dimension + '" data-show-value-of-' + dimension + '-at="' + key + '"></div> (<span id="' + key + '" style="display: inline-block; min-width: 50px; text-align: right;">X</span>' + units + ')';
 859
 860         return h;
 861 }
 862
 863 function chartsPerRow(total) {
 864         if(options.chartsPerRow === 0) {
 865                 width = Math.floor(total / options.chartsMinWidth);
 866                 if(width === 0) width = 1;
 867                 return width;
 868         }
 869         else return options.chartsPerRow;
 870 }
 871
 872 function prioritySort(a, b) {
 873         if(a.priority < b.priority) return -1;
 874         if(a.priority > b.priority) return 1;
 875         if(a.name < b.name) return -1;
 876         return 1;
 877 }
 878
 879 function sortObjectByPriority(object) {
 880         var idx = {};
 881         var sorted = new Array();
 882
 883         for(var i in object) {
 884                 if(typeof idx[i] === 'undefined') {
 885                         idx[i] = object[i];
 886                         sorted.push(i);
 887                 }
 888         }
 889
 890         sorted.sort(function(a, b) {
 891                 if(idx[a].priority < idx[b].priority) return -1;
 892                 if(idx[a].priority > idx[b].priority) return 1;
 893                 if(a < b) return -1;
 894                 return 1;
 895         });
 896
 897         return sorted;
 898 }
 899
 900 // ----------------------------------------------------------------------------
 901
 902 function gaugeChart(title, width, dimensions, colors) {
 903         if(typeof colors === 'undefined')
 904                 colors = '';
 905
 906         if(typeof dimensions === 'undefined')
 907                 dimensions = '';
 908
 909         return '<div data-netdata="CHART_UNIQUE_ID"'
 910                                                         + ' data-dimensions="' + dimensions + '"'
 911                                                         + ' data-chart-library="gauge"'
 912                                                         + ' data-gauge-adjust="width"'
 913                                                         + ' data-title="' + title + '"'
 914                                                         + ' data-width="' + width + '"'
 915                                                         + ' data-before="0"'
 916                                                         + ' data-after="-CHART_DURATION"'
 917                                                         + ' data-points="CHART_DURATION"'
 918                                                         + ' data-colors="' + colors + '"'
 919                                                         + ' role="application"></div>';
 920 }
 921
 922 // ----------------------------------------------------------------------------
 923
 924 var menuData = {
 925         'system': {
 926                 title: 'System Overview',
 927                 info: 'Overview of the key system metrics.'
 928         },
 929
 930         'ap': {
 931                 title: 'Access Points',
 932                 info: undefined
 933         },
 934
 935         'tc': {
 936                 title: 'Quality of Service',
 937                 info: 'Netdata collects and visualizes tc class utilization using its <a href="https://github.com/firehol/netdata/blob/master/plugins.d/tc-qos-helper.sh" target="_blank">tc-helper plugin</a>. If you also use <a href="http://firehol.org/#fireqos" target="_blank">FireQOS</a> for setting up QoS, netdata automatically collects interface and class names. If your QoS configuration includes overheads calculation, the values shown here will include these overheads (the total bandwidth for the same interface as reported in the Network Interfaces section, will be lower than the total bandwidth reported here). Also, data collection may have a slight time difference compared to the interface (QoS data collection is implemented with a BASH script, so a shift in data collection of a few milliseconds should be justified).'
 938         },
 939
 940         'net': {
 941                 title: 'Network Interfaces',
 942                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
 943         },
 944
 945         'ipv4': {
 946                 title: 'IPv4 Networking',
 947                 info: undefined
 948         },
 949
 950         'ipv6': {
 951                 title: 'IPv6 Networking',
 952                 info: undefined
 953         },
 954
 955         'ipvs': {
 956                 title: 'IP Virtual Server',
 957                 info: undefined
 958         },
 959
 960         'netfilter': {
 961                 title: 'Firewall (netfilter)',
 962                 info: undefined
 963         },
 964
 965         'cpu': {
 966                 title: 'CPUs',
 967                 info: undefined
 968         },
 969
 970         'mem': {
 971                 title: 'Memory',
 972                 info: undefined
 973         },
 974
 975         'disk': {
 976                 title: 'Disks',
 977                 info: undefined
 978         },
 979
 980         'sensors': {
 981                 title: 'Sensors',
 982                 info: undefined
 983         },
 984
 985         'nfsd': {
 986                 title: 'File Server (nfsd)',
 987                 info: undefined
 988         },
 989
 990         'apps': {
 991                 title: 'Applications',
 992                 info: 'Per application statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics for applications of interest, defined in <code>/etc/netdata/apps_groups.conf</code> (the default is <a href="https://github.com/firehol/netdata/blob/master/conf.d/apps_groups.conf" target="_blank">here</a>). The plugin internally builds a process tree (much like <code>ps fax</code> does), and groups processes together (evaluating both child and parent processes) so that the result is always a chart with a predefined set of dimensions (of course, only application groups found running are reported).<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
 993                 height: 1.5
 994         },
 995
 996         'users': {
 997                 title: 'Users',
 998                 info: 'Per user statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user.<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
 999                 height: 1.5
1000         },
1001
1002         'groups': {
1003                 title: 'User Groups',
1004                 info: 'Per user group statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user group.<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
1005                 height: 1.5
1006         },
1007
1008         'netdata': {
1009                 title: 'Netdata Monitoring',
1010                 info: undefined
1011         },
1012
1013         'example': {
1014                 title: 'Example Charts',
1015                 info: undefined
1016         },
1017
1018         'cgroup': {
1019                 title: 'Container',
1020                 info: undefined
1021         },
1022
1023         'mysql': {
1024                 title: 'MySQL',
1025                 info: undefined
1026         },
1027
1028         'named': {
1029                 title: 'named',
1030                 info: undefined
1031         },
1032 };
1033
1034 var submenuData = {
1035         'mem.ksm': {
1036                 title: 'Memory Deduper',
1037                 info: 'Kernel Same-page Merging (KSM) performance monitoring, read from several files in <code>/sys/kernel/mm/ksm/</code>. KSM is a memory-saving de-duplication feature in the Linux kernel (since version 2.6.32). The KSM daemon ksmd periodically scans those areas of user memory which have been registered with it, looking for pages of identical content which can be replaced by a single write-protected page (which is automatically copied if a process later wants to update its content). KSM was originally developed for use with KVM (where it was known as Kernel Shared Memory), to fit more virtual machines into physical memory, by sharing the data common between them.  But it can be useful to any application which generates many instances of the same data.'
1038         },
1039
1040         'netfilter.conntrack': {
1041                 title: 'Connection Tracker',
1042                 info: 'Netfilter Connection Tracker performance monitoring, read from <code>/proc/net/stat/nf_conntrack</code>. The connection tracker keeps track of all connections of the machine, inbound and outbound. It works by keeping a database with all open connections, tracking network and address translation and connection expectations.'
1043         },
1044
1045         'netfilter.nfacct': {
1046                 title: 'Bandwidth Accounting',
1047                 info: 'The following information is read using the <code>nfacct.plugin</code>.'
1048         },
1049
1050         'netfilter.synproxy': {
1051                 title: 'DDoS Protection',
1052                 info: 'DDoS Protection performance monitoring read from <code>/proc/net/stat/synproxy</code>. <a href="https://github.com/firehol/firehol/wiki/Working-with-SYNPROXY" target="_blank">SYNPROXY</a> is a TCP SYN packets proxy. It is used to protect any TCP server (like a web server) from SYN floods and similar DDoS attacks. It is a netfilter module, in the Linux kernel (since version 3.12). It is optimized to handle millions of packets per second utilizing all CPUs available without any concurrency locking between the connections. It can be used for any kind of TCP traffic (even encrypted), since it does not interfere with the content itself.'
1053         }
1054 };
1055
1056 var chartData = {
1057         'system.cpu': {
1058                 info: 'Total CPU utilization (all cores). 100% here means there is no CPU idle time at all. You can get per core usage at the <a href="#cpu">CPUs</a> section and per application usage at the <a href="#apps">Applications Monitoring</a> section.<br/>Keep an eye on <b>iowait</b> ' + sparkline('system.cpu', 'iowait', '%') + '. If it is constantly high, your disks are a bottleneck and they slow your system down.<br/>Another important metric worth monitoring, is <b>softirq</b> ' + sparkline('system.cpu', 'softirq', '%') + '. A constantly high percentage of softirq may indicate network drivers issues.'
1059         },
1060
1061         'system.load': {
1062                 info: 'Current system load read from <code>/proc/loadavg</code>.',
1063                 height: 0.7
1064         },
1065
1066         'system.io': {
1067                 info: 'Total Disk I/O, for all disks, read from <code>/proc/vmstat</code>. You can get detailed information about each disk at the <a href="#disk">Disks</a> section and per application Disk usage at the <a href="#apps">Applications Monitoring</a> section.'
1068         },
1069
1070         'system.swapio': {
1071                 info: 'Total Swap I/O, read from <code>/proc/vmstat</code>. (netdata measures both <code>in</code> and <code>out</code>. If either of them is not shown in the chart, it is because it is zero - you can change the page settings to always render all the available dimensions on all charts).'
1072         },
1073
1074         'system.pgfaults': {
1075                 info: 'Total page faults, read from <code>/proc/vmstat</code>. <b>Major page faults</b> indicates that the system is using its swap. You can find which applications use the swap at the <a href="#apps">Applications Monitoring</a> section.'
1076         },
1077
1078         'system.entropy': {
1079                 colors: '#CC22AA',
1080                 info: '<a href="https://en.wikipedia.org/wiki/Entropy_(computing)" target="_blank">Entropy</a>, read from <code>/proc/sys/kernel/random/entropy_avail</code>, is like a pool of random numbers that are mainly used in cryptography. It is advised that the pool remains always <a href="https://blog.cloudflare.com/ensuring-randomness-with-linuxs-random-number-generator/" target="_blank">above 200</a>. If the pool of entropy gets empty, you risk your security to be predictable and you should install a user-space random numbers generating daemon, like <a href="http://www.issihosts.com/haveged/" target="_blank">haveged</a>, to keep the pool in healthy levels.'
1081         },
1082
1083         'system.forks': {
1084                 colors: '#5555DD',
1085                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
1086         },
1087
1088         'system.intr': {
1089                 colors: '#DD5555',
1090                 info: 'Total number of CPU interrupts, read from <code>/proc/stat</code>. Check <code>system.interrupts</code> that gives more detail about each interrupt and also the <a href="#cpu">CPUs</a> section where interrupts are analyzed per CPU core.'
1091         },
1092
1093         'system.interrupts': {
1094                 info: 'CPU interrupts in detail, read from <code>/proc/interrupts</code>. At the <a href="#cpu">CPUs</a> section, interrupts are analyzed per CPU core.'
1095         },
1096
1097         'system.softirqs': {
1098                 info: 'CPU softirqs in detail, read from <code>/proc/softirqs</code>. At the <a href="#cpu">CPUs</a> section, softirqs are analyzed per CPU core.'
1099         },
1100
1101         'system.processes': {
1102                 info: 'System processes, read from <code>/proc/stat</code>. <b>Blocked</b> are processes that are willing to execute but they cannot, e.g. because they wait for disk activity.'
1103         },
1104
1105         'system.active_processes': {
1106                 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
1107         },
1108
1109         'system.ctxt': {
1110                 info: '<a href="https://en.wikipedia.org/wiki/Context_switch" target="_blank">Context Switches</a>, read from <code>/proc/stat</code>, is the switching of the CPU from one process, task or thread to another. If there are many processes or threads willing to execute and very few CPU cores available to handle them, the system is making more context switching to balance the CPU resources among them. The whole process is computationally intensive. The more the context switches, the slower the system gets.'
1111         },
1112
1113         'system.idlejitter': {
1114                 colors: '#5555AA',
1115                 info: 'Idle jitter is calculated by netdata. A thread is spawned that requests to sleep for a few microseconds. When the system wakes it up, it measures how many microseconds have passed. The difference between the requested and the actual duration of the sleep, is the <b>idle jitter</b>. This number is useful in real-time environments, where CPU jitter can affect the quality of the service (like VoIP media gateways).'
1116         },
1117
1118         'system.ipv4': {
1119                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>.'
1120         },
1121
1122         'system.ipv6': {
1123                 info: 'Total IPv6 Traffic, read from <code>/proc/net/snmp6</code>.'
1124         },
1125
1126         'system.ram': {
1127                 info: 'System memory, read from <code>/proc/meminfo</code>.'
1128         },
1129
1130         'system.swap': {
1131                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
1132         },
1133
1134         'mem.ksm_savings': {
1135                 heads: [
1136                         gaugeChart('Saved', '12%', 'savings', '#0099CC')
1137                 ]
1138         },
1139
1140         'mem.ksm_ratios': {
1141                 heads: [
1142                         function(id) {
1143                                 return  '<div data-netdata="' + id + '"'
1144                                         + ' data-gauge-max-value="100"'
1145                                         + ' data-chart-library="gauge"'
1146                                         + ' data-title="Savings"'
1147                                         + ' data-units="percentage %"'
1148                                         + ' data-gauge-adjust="width"'
1149                                         + ' data-width="12%"'
1150                                         + ' data-before="0"'
1151                                         + ' data-after="-CHART_DURATION"'
1152                                         + ' data-points="CHART_DURATION"'
1153                                         + ' role="application"></div>';
1154                         }
1155                 ]
1156         },
1157
1158         'mem.committed': {
1159                 colors: NETDATA.colors[3]
1160         },
1161
1162         'apps.cpu': {
1163                 height: 2.0
1164         },
1165
1166         'apps.preads': {
1167                 height: 2.0
1168         },
1169
1170         'apps.pwrites': {
1171                 height: 2.0
1172         },
1173
1174         'users.cpu': {
1175                 height: 2.0
1176         },
1177
1178         'users.preads': {
1179                 height: 2.0
1180         },
1181
1182         'users.pwrites': {
1183                 height: 2.0
1184         },
1185
1186         'groups.cpu': {
1187                 height: 2.0
1188         },
1189
1190         'groups.preads': {
1191                 height: 2.0
1192         },
1193
1194         'groups.pwrites': {
1195                 height: 2.0
1196         },
1197
1198         'tc.qos': {
1199                 heads: [
1200                         function(id) {
1201                                 if(id.match(/.*-ifb$/))
1202                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
1203                                 else
1204                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
1205                         }
1206                 ]
1207         },
1208
1209         'net.net': {
1210                 heads: [
1211                         gaugeChart('Received', '12%', 'received'),
1212                         gaugeChart('Sent', '12%', 'sent')
1213                 ]
1214         },
1215
1216         'disk.util': {
1217                 colors: '#FF5588',
1218                 heads: [
1219                         gaugeChart('Utilization', '12%', '', '#FF5588')
1220                 ]
1221         },
1222
1223         'disk.backlog': {
1224                 colors: '#0099CC'
1225         },
1226
1227         'disk.io': {
1228                 heads: [
1229                         gaugeChart('Read', '12%', 'reads'),
1230                         gaugeChart('Write', '12%', 'writes')
1231                 ]
1232         },
1233
1234         'netfilter.sockets': {
1235                 colors: '#88AA00',
1236                 heads: [
1237                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1238                 ]
1239         },
1240
1241         'netfilter.new': {
1242                 heads: [
1243                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1244                 ]
1245         },
1246
1247         'disk.iotime': {
1248                 height: 0.5
1249         },
1250         'disk.mops': {
1251                 height: 0.5
1252         },
1253         'disk.svctm': {
1254                 height: 0.5
1255         },
1256         'disk.avgsz': {
1257                 height: 0.5
1258         },
1259         'disk.await': {
1260                 height: 0.5
1261         },
1262
1263         'apache.connections': {
1264                 colors: NETDATA.colors[4],
1265                 mainheads: [
1266                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1267                 ]
1268         },
1269
1270         'apache.requests': {
1271                 colors: NETDATA.colors[0],
1272                 mainheads: [
1273                         gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1274                 ]
1275         },
1276
1277         'apache.net': {
1278                 colors: NETDATA.colors[3],
1279                 mainheads: [
1280                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1281                 ]
1282         },
1283
1284         'apache.workers': {
1285                 mainheads: [
1286                         function(id) {
1287                                 return  '<div data-netdata="' + id + '"'
1288                                         + ' data-dimensions="busy"'
1289                                         + ' data-append-options="percentage"'
1290                                         + ' data-gauge-max-value="100"'
1291                                         + ' data-chart-library="gauge"'
1292                                         + ' data-title="Workers Utilization"'
1293                                         + ' data-units="percentage %"'
1294                                         + ' data-gauge-adjust="width"'
1295                                         + ' data-width="12%"'
1296                                         + ' data-before="0"'
1297                                         + ' data-after="-CHART_DURATION"'
1298                                         + ' data-points="CHART_DURATION"'
1299                                         + ' role="application"></div>';
1300                         }
1301                 ]
1302         },
1303
1304         'apache.bytesperreq': {
1305                 colors: NETDATA.colors[3],
1306                 height: 0.5
1307         },
1308
1309         'apache.reqpersec': {
1310                 colors: NETDATA.colors[4],
1311                 height: 0.5
1312         },
1313
1314         'apache.bytespersec': {
1315                 colors: NETDATA.colors[6],
1316                 height: 0.5
1317         },
1318
1319         'nginx.connections': {
1320                 colors: NETDATA.colors[4],
1321                 mainheads: [
1322                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1323                 ]
1324         },
1325
1326         'nginx.requests': {
1327                 colors: NETDATA.colors[0],
1328                 mainheads: [
1329                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1330                 ]
1331         }
1332 };
1333
1334 function anyAttribute(obj, attr, key, def) {
1335         if(typeof obj[key] !== 'undefined') {
1336                 if(typeof obj[key][attr] !== 'undefined')
1337                         return obj[key][attr];
1338         }
1339         return def;
1340 }
1341
1342 function menuTitle(chart) {
1343         if(typeof chart.menu_pattern !== 'undefined') {
1344                 return anyAttribute(menuData, 'title', chart.menu_pattern, chart.menu_pattern).toString()
1345                                 + ': ' + chart.type.slice(-(chart.type.length - chart.menu_pattern.length - 1)).toString();
1346         }
1347
1348         return anyAttribute(menuData, 'title', chart.menu, chart.menu);
1349 }
1350
1351 function menuInfo(menu) {
1352         return anyAttribute(menuData, 'info', menu, null);
1353 }
1354
1355 function menuHeight(menu, relative) {
1356         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1357 }
1358
1359 function submenuTitle(menu, submenu) {
1360         var key = menu + '.' + submenu;
1361         return anyAttribute(submenuData, 'title', key, submenu);
1362 }
1363
1364 function submenuInfo(menu, submenu) {
1365         var key = menu + '.' + submenu;
1366         return anyAttribute(submenuData, 'info', key, null);
1367 }
1368
1369 function submenuHeight(menu, submenu, relative) {
1370         var key = menu + '.' + submenu;
1371         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1372 }
1373
1374
1375 function chartInfo(id) {
1376         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1377                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1378         else
1379                 return '';
1380 }
1381
1382 function chartHeight(id, def) {
1383         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1384                 return def * chartData[id].height;
1385         else
1386                 return def;
1387 }
1388
1389
1390 // ----------------------------------------------------------------------------
1391
1392 // enrich the data structure returned by netdata
1393 // to reflect our menu system and content
1394 function enrichChartData(chart) {
1395         var tmp = chart.type.split('_')[0];
1396
1397         switch(tmp) {
1398                 case 'ap':
1399                 case 'net':
1400                 case 'disk':
1401                         chart.menu = tmp;
1402                         break;
1403
1404                 case 'mysql':
1405                 case 'named':
1406                 case 'cgroup':
1407                         chart.menu = chart.type;
1408                         chart.menu_pattern = tmp;
1409                         break;
1410
1411                 case 'tc':
1412                         chart.menu = tmp;
1413
1414                         // find a name for this device from fireqos info
1415                         // we strip '_(in|out)' or '(in|out)_'
1416                         if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family) {
1417                                 var n = chart.name.split('.')[1];
1418                                 if(n.endsWith('_in'))
1419                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_in'));
1420                                 else if(n.endsWith('_out'))
1421                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_out'));
1422                                 else if(n.startsWith('in_'))
1423                                         options.submenu_names[chart.family] = n.slice(3, n.length);
1424                                 else if(n.startsWith('out_'))
1425                                         options.submenu_names[chart.family] = n.slice(4, n.length);
1426                         }
1427
1428                         // increase the priority of IFB devices
1429                         // to have inbound appear before outbound
1430                         if(chart.id.match(/.*-ifb$/))
1431                                 chart.priority--;
1432
1433                         break;
1434
1435                 default:
1436                         chart.menu = chart.type;
1437                         break;
1438         }
1439
1440         chart.submenu = chart.family;
1441 }
1442
1443 // ----------------------------------------------------------------------------
1444
1445 function name2id(s) {
1446         return s
1447                 .replace(/ /g, '_')
1448                 .replace(/\(/g, '_')
1449                 .replace(/\)/g, '_')
1450                 .replace(/\./g, '_')
1451                 .replace(/\//g, '_');
1452 }
1453
1454 function headMain(charts, duration) {
1455         var head = '';
1456
1457         if(typeof charts['system.swap'] !== 'undefined')
1458                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1459                 + ' data-dimensions="free"'
1460                 + ' data-append-options="percentage"'
1461                 + ' data-chart-library="easypiechart"'
1462                 + ' data-title="Free Swap"'
1463                 + ' data-units="%"'
1464                 + ' data-easypiechart-max-value="100"'
1465                 + ' data-width="8%"'
1466                 + ' data-before="0"'
1467                 + ' data-after="-' + duration.toString() + '"'
1468                 + ' data-points="' + duration.toString() + '"'
1469                 + ' data-colors="#DD4400"'
1470                 + ' role="application"></div>';
1471
1472         if(typeof charts['system.io'] !== 'undefined') {
1473                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1474                 + ' data-dimensions="in"'
1475                 + ' data-chart-library="easypiechart"'
1476                 + ' data-title="Disk Read"'
1477                 + ' data-units="KB / s"'
1478                 + ' data-width="10%"'
1479                 + ' data-before="0"'
1480                 + ' data-after="-' + duration.toString() + '"'
1481                 + ' data-points="' + duration.toString() + '"'
1482                 + ' role="application"></div>';
1483
1484                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1485                 + ' data-dimensions="out"'
1486                 + ' data-chart-library="easypiechart"'
1487                 + ' data-title="Disk Write"'
1488                 + ' data-units="KB / s"'
1489                 + ' data-width="10%"'
1490                 + ' data-before="0"'
1491                 + ' data-after="-' + duration.toString() + '"'
1492                 + ' data-points="' + duration.toString() + '"'
1493                 + ' role="application"></div>';
1494         }
1495
1496         if(typeof charts['system.cpu'] !== 'undefined')
1497                 head += '<div data-netdata="system.cpu"'
1498                 + ' data-chart-library="gauge"'
1499                 + ' data-title="CPU"'
1500                 + ' data-units="%"'
1501                 + ' data-gauge-max-value="100"'
1502                 + ' data-width="18%"'
1503                 + ' data-after="-' + duration.toString() + '"'
1504                 + ' data-points="' + duration.toString() + '"'
1505                 + ' data-colors="' + NETDATA.colors[12] + '"'
1506                 + ' role="application"></div>';
1507
1508         if(typeof charts['system.ipv4'] !== 'undefined') {
1509                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1510                 + ' data-dimensions="received"'
1511                 + ' data-chart-library="easypiechart"'
1512                 + ' data-title="IPv4 Inbound"'
1513                 + ' data-units="kbps"'
1514                 + ' data-width="10%"'
1515                 + ' data-before="0"'
1516                 + ' data-after="-' + duration.toString() + '"'
1517                 + ' data-points="' + duration.toString() + '"'
1518                 + ' role="application"></div>';
1519
1520                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1521                 + ' data-dimensions="sent"'
1522                 + ' data-chart-library="easypiechart"'
1523                 + ' data-title="IPv4 Outbound"'
1524                 + ' data-units="kbps"'
1525                 + ' data-width="10%"'
1526                 + ' data-before="0"'
1527                 + ' data-after="-' + duration.toString() + '"'
1528                 + ' data-points="' + duration.toString() + '"'
1529                 + ' role="application"></div>';
1530         }
1531         else if(typeof charts['system.ipv6'] !== 'undefined') {
1532                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1533                 + ' data-dimensions="received"'
1534                 + ' data-chart-library="easypiechart"'
1535                 + ' data-title="IPv6 Inbound"'
1536                 + ' data-units="kbps"'
1537                 + ' data-width="10%"'
1538                 + ' data-before="0"'
1539                 + ' data-after="-' + duration.toString() + '"'
1540                 + ' data-points="' + duration.toString() + '"'
1541                 + ' role="application"></div>';
1542
1543                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1544                 + ' data-dimensions="sent"'
1545                 + ' data-chart-library="easypiechart"'
1546                 + ' data-title="IPv6 Outbound"'
1547                 + ' data-units="kbps"'
1548                 + ' data-width="10%"'
1549                 + ' data-before="0"'
1550                 + ' data-after="-' + duration.toString() + '"'
1551                 + ' data-points="' + duration.toString() + '"'
1552                 + ' role="application"></div>';
1553         }
1554
1555         if(typeof charts['system.ram'] !== 'undefined')
1556                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1557                 + ' data-dimensions="cached|free"'
1558                 + ' data-append-options="percentage"'
1559                 + ' data-chart-library="easypiechart"'
1560                 + ' data-title="Available RAM"'
1561                 + ' data-units="%"'
1562                 + ' data-easypiechart-max-value="100"'
1563                 + ' data-width="8%"'
1564                 + ' data-after="-' + duration.toString() + '"'
1565                 + ' data-points="' + duration.toString() + '"'
1566                 + ' data-colors="' + NETDATA.colors[7] + '"'
1567                 + ' role="application"></div>';
1568
1569         return head;
1570 }
1571
1572 function generateHeadCharts(type, chart, duration) {
1573         var head = '';
1574         var hcharts = anyAttribute(chartData, type, chart.context, []);
1575         if(hcharts.length > 0) {
1576                 var hi = 0, hlen = hcharts.length;
1577                 while(hi < hlen) {
1578                         if(typeof hcharts[hi] === 'function')
1579                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1580                         else
1581                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1582                         hi++;
1583                 }
1584         }
1585         return head;
1586 }
1587
1588 function renderPage(menus, data) {
1589         var div = document.getElementById('charts_div');
1590         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
1591
1592         // find the proper duration for per-second updates
1593         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
1594         var html = '';
1595         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
1596         var mainhead = headMain(data.charts, duration);
1597
1598         // sort the menus
1599         var main = sortObjectByPriority(menus);
1600         var i = 0, len = main.length;
1601         while(i < len) {
1602                 var menu = main[i++];
1603
1604                 // generate an entry at the main menu
1605
1606                 var menuid = name2id(menu);
1607                 sidebar += '<li class=""><a href="#' + menuid + '">' + menus[menu].title + '</a><ul class="nav">';
1608                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menuid + '" role="heading">' + menus[menu].title + '</h1></div><div id="menu_' + menuid + '" role="document">';
1609
1610                 if(menus[menu].info !== null)
1611                         html += menus[menu].info;
1612
1613                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
1614
1615                 var shtml = '';
1616                 var mhead = '<div class="netdata-chart-row">' + mainhead;
1617                 mainhead = '';
1618
1619                 // sort the submenus of this menu
1620                 var sub = sortObjectByPriority(menus[menu].submenus);
1621                 var si = 0, slen = sub.length;
1622                 while(si < slen) {
1623                         var submenu = sub[si++];
1624
1625                         // generate an entry at the submenu
1626                         var submenuid = name2id(menu + '_' + submenu);
1627                         sidebar += '<li class><a href="#' + submenuid + '">' + menus[menu].submenus[submenu].title + '</a></li>';
1628                         shtml += '<div class="netdata-group-container" id="submenu_' + submenuid + '" style="display: inline-block; width: ' + pcent_width.toString() + '%"><h2 id="' + submenuid + '" class="netdata-chart-alignment" role="heading">' + menus[menu].submenus[submenu].title + '</h2>';
1629
1630                         if(menus[menu].submenus[submenu].info !== null)
1631                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
1632
1633                         var head = '<div class="netdata-chart-row">';
1634                         var chtml = '';
1635
1636                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
1637
1638                         // sort the charts in this submenu of this menu
1639                         menus[menu].submenus[submenu].charts.sort(prioritySort);
1640                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
1641                         while(ci < clen) {
1642                                 var chart = menus[menu].submenus[submenu].charts[ci++];
1643
1644                                 // generate the submenu heading charts
1645                                 mhead += generateHeadCharts('mainheads', chart, duration);
1646                                 head += generateHeadCharts('heads', chart, duration);
1647
1648                                 // generate the chart
1649                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
1650                                         + ' data-width="' + pcent_width.toString() + '%"'
1651                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
1652                                         + ' data-before="0"'
1653                                         + ' data-after="-' + duration.toString() + '"'
1654                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
1655                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
1656                                         + ' role="application"></div>';
1657
1658                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
1659                         }
1660
1661                         head += '</div>';
1662                         shtml += head + chtml + '</div>';
1663                 }
1664
1665                 mhead += '</div>';
1666                 sidebar += '</ul></li>';
1667                 html += mhead + shtml + '</div></div><hr role="separator"/>';
1668         }
1669
1670         sidebar += '</ul>';
1671         div.innerHTML = html;
1672         document.getElementById('sidebar').innerHTML = sidebar;
1673         finalizePage();
1674 }
1675
1676 function renderChartsAndMenu(data) {
1677         var menus = {};
1678         var charts = data.charts;
1679
1680         for(var c in charts) {
1681                 enrichChartData(charts[c]);
1682
1683                 // create the menu
1684                 if(typeof menus[charts[c].menu] === 'undefined') {
1685                         menus[charts[c].menu] = {
1686                                 priority: charts[c].priority,
1687                                 submenus: {},
1688                                 title: menuTitle(charts[c]),
1689                                 info: menuInfo(charts[c].menu),
1690                                 height: menuHeight(charts[c].menu, options.chartsHeight)
1691                         };
1692                 }
1693
1694                 if(charts[c].priority < menus[charts[c].menu].priority)
1695                         menus[charts[c].menu].priority = charts[c].priority;
1696
1697                 // create the submenu
1698                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
1699                         menus[charts[c].menu].submenus[charts[c].submenu] = {
1700                                 priority: charts[c].priority,
1701                                 charts: new Array(),
1702                                 title: null,
1703                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
1704                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
1705                         };
1706                 }
1707
1708                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
1709                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
1710
1711                 // index the chart in the menu/submenu
1712                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
1713         }
1714
1715         // propagate the descriptive subname given to QoS
1716         // to all the other submenus with the same name
1717         for(var m in menus) {
1718                 for(var s in menus[m].submenus) {
1719                         // set the family using a name
1720                         if(typeof options.submenu_names[s] !== 'undefined') {
1721                                 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
1722                         }
1723                         else {
1724                                 menus[m].submenus[s].title = submenuTitle(m, s);
1725                         }
1726                 }
1727         }
1728
1729         renderPage(menus, data);
1730 }
1731
1732 function downloadAllCharts(netdata_url) {
1733         if(typeof netdata_url === 'undefined' || netdata_url === null)
1734                 netdata_url = NETDATA.serverDefault;
1735
1736         NETDATA.pause(function() {
1737
1738                 // download all the charts the server knows
1739                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
1740
1741                         options.data = data;
1742                         options.hostname = data.hostname;
1743                         document.getElementById('hostname').innerHTML = options.hostname;
1744                         document.getElementById('hostname').href = NETDATA.serverDefault;
1745                         document.title = options.hostname + ' dashboard';
1746
1747                         renderChartsAndMenu(data);
1748
1749                         // prepare our DOM
1750 //                      prepareScreen(data);
1751
1752                         // due to affix issues, prepareScreen() will unpause
1753                         // netdata as needed
1754                 });
1755         });
1756 }
1757
1758 // ----------------------------------------------------------------------------
1759
1760 function versionLog(msg) {
1761         document.getElementById('versionCheckLog').innerHTML = msg;
1762 }
1763
1764 function getNetdataVersion(callback) {
1765         versionLog('Downloading installed version info from netdata...');
1766
1767         $.ajax({
1768                 url: 'version.txt',
1769                 async: true,
1770                 cache: false
1771         })
1772         .done(function(data) {
1773                 data = data.replace(/(\r\n|\n|\r| |\t)/gm,"");
1774                 if(data.length !== 40) {
1775                         versionLog('Received version string is invalid.');
1776                         callback(null);
1777                 }
1778                 else {
1779                         versionLog('Installed version of netdata is ' + data);
1780                         document.getElementById('netdataVersion').innerHTML = data;
1781                         callback(data);
1782                 }
1783         })
1784         .fail(function() {
1785                 versionLog('Failed to download installed version info from netdata!');
1786                 callback(null);
1787         });
1788 }
1789
1790 function getGithubLatestCommit(callback) {
1791         versionLog('Downloading latest version info from github...');
1792
1793         $.ajax({
1794                 url: 'https://api.github.com/repos/firehol/netdata/commits',
1795                 async: true,
1796                 cache: false
1797         })
1798         .done(function(data) {
1799                 versionLog('Latest version info from github is ' + data[0].sha);
1800                 callback(data[0].sha);
1801         })
1802         .fail(function() {
1803                 versionLog('Failed to download installed version info from github!');
1804                 callback(null);
1805         });
1806 }
1807
1808 function checkForUpdate(callback) {
1809         getNetdataVersion(function(sha1) {
1810                 if(sha1 === null) callback(null, null);
1811
1812                 getGithubLatestCommit(function(sha2) {
1813                         callback(sha1, sha2);
1814                 });
1815         });
1816
1817         return null;
1818 }
1819
1820 var updateBlinkCounter = 0;
1821 function notifyForUpdate(force) {
1822         versionLog('<p>checking for updates...</p>');
1823
1824         var now = new Date().getTime();
1825
1826         if(typeof force === 'undefined' || force !== true) {
1827                 var last = loadLocalStorage('last_update_check');
1828
1829                 if(typeof last === 'string')
1830                         last = parseInt(last);
1831                 else
1832                         last = 0;
1833
1834                 if(now - last < 3600000 * 8) {
1835                         // no need to check it - too soon
1836                         return;
1837                 }
1838         }
1839
1840         checkForUpdate(function(sha1, sha2) {
1841                 var save = false;
1842
1843                 if(sha1 === null) {
1844                         save = false;
1845                         versionLog('<p><big>Failed to get your netdata version!</big></p><p>You can always get the latest version of netdata from <a href="https://github.com/firehol/netdata" target="_blank">its github page</a>.</p>');
1846                 }
1847                 else if(sha2 === null) {
1848                         save = false;
1849                         versionLog('<p><big>Failed to get the latest version from github.</big></p><p>You can always get the latest version of netdata from <a href="https://github.com/firehol/netdata" target="_blank">its github page</a>.</p>');
1850                 }
1851                 else if(sha1 === sha2) {
1852                         save = true;
1853                         versionLog('<p><big>You already have the latest version of netdata!</big></p><p>No update yet?<br/>Probably, we need some motivation to keep going on!</p><p>If you haven\'t already, <a href="https://github.com/firehol/netdata" target="_blank">give netdata a <b>Star</b> at its github page</a>.</p>');
1854                 }
1855                 else {
1856                         save = true;
1857                         var compare = 'https://github.com/firehol/netdata/compare/' + sha1.toString() + '...' + sha2.toString();
1858
1859                         versionLog('<p><big><strong>New version of netdata available!</strong></big></p><p>Latest version: ' + sha2.toString() + '</p><p><a href="' + compare + '" target="_blank">Click here for the changes log</a> since your installed version, and<br/><a href="https://github.com/firehol/netdata/wiki/Updating-Netdata" target="_blank">click here for directions on updating</a> your netdata installation.</p><p>We suggest to review the changes log for new features you may be interested, or important bug fixes you may need.<br/>Keeping your netdata updated, is generally a good idea.</p>');
1860
1861                         function updateButtonBlink() {
1862                                 updateBlinkCounter--;
1863                                 if(updateBlinkCounter > 0)
1864                                         $('#updateButton').fadeOut(500).fadeIn(500, updateButtonBlink);
1865                         }
1866
1867                         if(updateBlinkCounter === 0) {
1868                                 updateBlinkCounter = 300;
1869                                 updateButtonBlink();
1870                         }
1871                 }
1872
1873                 if(save)
1874                         saveLocalStorage('last_update_check', now.toString());
1875         });
1876 }
1877
1878 // ----------------------------------------------------------------------------
1879
1880 function getUrlParameter(sParam) {
1881     var sPageURL = decodeURIComponent(window.location.search.substring(1)),
1882         sURLVariables = sPageURL.split('&'),
1883         sParameterName,
1884         i;
1885
1886     for (i = 0; i < sURLVariables.length; i++) {
1887         sParameterName = sURLVariables[i].split('=');
1888
1889         if (sParameterName[0] === sParam) {
1890             return sParameterName[1] === undefined ? true : sParameterName[1];
1891         }
1892     }
1893 }
1894
1895 function finalizePage() {
1896         // resize all charts - without starting the background thread
1897         // this has to be done while NETDATA is paused
1898         // if we ommit this, the affix menu will be wrong, since all
1899         // the Dom elements are initially zero-sized
1900         NETDATA.parseDom();
1901
1902         var before = 0, after = 0, nowelcome = 0;
1903         after = getUrlParameter('force_after_ms');
1904         before = getUrlParameter('force_before_ms');
1905         nowelcome = (getUrlParameter('nowelcome') === true)?true:false;
1906
1907         if(before > 0 && after > 0) {
1908                 nowelcome = true;
1909                 NETDATA.globalPanAndZoom.setMaster(NETDATA.options.targets[0], after, before);
1910         }
1911
1912         // let it run (update the charts)
1913         NETDATA.unpause();
1914
1915         // check if we have to jump to a specific section
1916         var hash = location.hash.replace('#','');
1917         if(hash != '') {
1918                 // Clear the hash in the URL
1919                 // location.hash = '';   // delete front "//" if you want to change the address bar
1920                 var offset = $(location.hash).offset();
1921                 if(typeof offset !== 'undefined')
1922                         $('html, body').animate({ scrollTop: offset.top }, 0);
1923         }
1924
1925         /* activate bootstrap sidebar (affix) */
1926         $('#sidebar').affix({
1927                 offset: {
1928                         top: (isdemo())?150:0,
1929                         bottom: 0
1930                 }
1931         });
1932
1933         /* fix scrolling of very long affix lists
1934            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
1935          */
1936         $('#sidebar').on('affixed.bs.affix', function() {
1937                 $(this).removeAttr('style');
1938         });
1939
1940         /* activate bootstrap scrollspy (needed for sidebar) */
1941         $(document.body).scrollspy({
1942                 target: '#sidebar',
1943                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
1944         });
1945
1946         document.getElementById('footer').style.display = 'block';
1947
1948
1949         var update_options_modal = function() {
1950                 // console.log('update_options_modal');
1951
1952                 var sync_option = function(option) {
1953                         var self = $('#' + option);
1954
1955                         if(self.prop('checked') !== NETDATA.getOption(option)) {
1956                                 // console.log('switching ' + option.toString());
1957                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
1958                         }
1959                 }
1960
1961                 var theme_sync_option = function(option) {
1962                         var self = $('#' + option);
1963
1964                         self.bootstrapToggle(netdataTheme === 'slate'?'on':'off');
1965                 }
1966
1967                 sync_option('eliminate_zero_dimensions');
1968                 sync_option('destroy_on_hide');
1969                 sync_option('parallel_refresher');
1970                 sync_option('concurrent_refreshes');
1971                 sync_option('sync_selection');
1972                 sync_option('sync_pan_and_zoom');
1973                 sync_option('stop_updates_when_focus_is_lost');
1974                 sync_option('smooth_plot');
1975                 sync_option('pan_and_zoom_data_padding');
1976                 sync_option('show_help');
1977                 theme_sync_option('netdata_theme_control');
1978
1979                 if(NETDATA.getOption('parallel_refresher') === false) {
1980                         $('#concurrent_refreshes_row').hide();
1981                 }
1982                 else {
1983                         $('#concurrent_refreshes_row').show();
1984                 }
1985         };
1986         NETDATA.setOption('setOptionCallback', update_options_modal);
1987
1988         // handle options changes
1989         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
1990         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
1991         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
1992         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
1993         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
1994         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
1995         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
1996         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
1997         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
1998         $('#show_help').change(function()                       { NETDATA.setOption('show_help', $(this).prop('checked')); location.reload(); });
1999
2000         // this has to be the last
2001         // it reloads the page
2002         $('#netdata_theme_control').change(function() {
2003                 if(setTheme($(this).prop('checked')?'slate':'white'))
2004                         location.reload();
2005         });
2006
2007         $('#updateModal').on('shown.bs.modal', function() {
2008                 notifyForUpdate(true);
2009         });
2010
2011         if(isdemo()) {
2012                 if(!nowelcome) {
2013                         setTimeout(function() {
2014                                 $('#welcomeModal').modal();
2015                         }, 1000);
2016                 }
2017
2018                 // google analytics when this is used for the home page of the demo sites
2019                 // this does not run on user's installations
2020                 setTimeout(function() {
2021                         (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
2022                         (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
2023                         m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
2024                         })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
2025
2026                         ga('create', 'UA-64295674-3', 'auto');
2027                         ga('send', 'pageview');
2028                 }, 2000);
2029         }
2030         else notifyForUpdate();
2031 }
2032
2033 function resetDashboardOptions() {
2034         var help = NETDATA.options.current.show_help;
2035
2036         NETDATA.resetOptions();
2037         if(setTheme('slate'))
2038                 location.reload();
2039
2040         if(help !== NETDATA.options.current.show_help)
2041                 location.reload();
2042 }
2043
2044 downloadAllCharts();
2045
2046 </script>
2047
2048 </body>
2049 </html>