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">
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  19
  20         <link rel="icon" type="image/png" sizes="512x512" href="images/seo-performance-512.png">
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  27         <link rel="icon" type="image/png" sizes="16x16" href="images/seo-performance-16.png">
  28
  29         <style>
  30
  31         /* prevent body from hidding 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         .dashboard-sidebar {
 113                 max-height: calc(100% - 70px) !important;
 114                 overflow-y: auto;
 115                 /*width: 220px !important;*/
 116         }
 117
 118         /* By default it's not affixed in mobile views, so undo that */
 119         .dashboard-sidebar.affix {
 120                 position: static;
 121         }
 122         @media (min-width: 768px) {
 123                 .dashboard-sidebar {
 124                         padding-left: 20px;
 125                 }
 126         }
 127
 128         .affix {
 129                 position: static;
 130                 top: 70px !important;
 131                 /*width: 220px;*/
 132         }
 133         .affix-top {
 134                 /*width: 220px;*/
 135         }
 136
 137         /* First level of nav */
 138         .dashboard-sidenav {
 139                 margin-top: 20px;
 140                 margin-bottom: 20px;
 141         }
 142
 143         /* All levels of nav */
 144         .dashboard-sidebar .nav > li > a {
 145                 display: block;
 146                 padding: 4px 20px;
 147                 font-size: 13px;
 148                 font-weight: 500;
 149                 color: #767676;
 150         }
 151         .dashboard-sidebar .nav > li > a:hover,
 152         .dashboard-sidebar .nav > li > a:focus {
 153                 padding-left: 19px;
 154                 color: #563d7c;
 155                 text-decoration: none;
 156                 background-color: transparent;
 157                 border-left: 1px solid #563d7c;
 158         }
 159         .dashboard-sidebar .nav > .active > a,
 160         .dashboard-sidebar .nav > .active:hover > a,
 161         .dashboard-sidebar .nav > .active:focus > a {
 162                 padding-left: 18px;
 163                 font-weight: bold;
 164                 color: #563d7c;
 165                 background-color: transparent;
 166                 border-left: 2px solid #563d7c;
 167         }
 168
 169         /* Nav: second level (shown on .active) */
 170         .dashboard-sidebar .nav .nav {
 171                 display: none; /* Hide by default, but at >768px, show it */
 172                 padding-bottom: 10px;
 173         }
 174         .dashboard-sidebar .nav .nav > li > a {
 175                 padding-top: 1px;
 176                 padding-bottom: 1px;
 177                 padding-left: 30px;
 178                 font-size: 12px;
 179                 font-weight: normal;
 180         }
 181         .dashboard-sidebar .nav .nav > li > a:hover,
 182         .dashboard-sidebar .nav .nav > li > a:focus {
 183                 padding-left: 29px;
 184         }
 185         .dashboard-sidebar .nav .nav > .active > a,
 186         .dashboard-sidebar .nav .nav > .active:hover > a,
 187         .dashboard-sidebar .nav .nav > .active:focus > a {
 188                 padding-left: 28px;
 189                 font-weight: 500;
 190         }
 191
 192         /* Back to top (hidden on mobile) */
 193         .back-to-top,
 194         .dashboard-theme-toggle {
 195                 display: none;
 196                 padding: 4px 10px;
 197                 margin-top: 10px;
 198                 margin-left: 10px;
 199                 font-size: 12px;
 200                 font-weight: 500;
 201                 color: #999;
 202         }
 203         .back-to-top:hover,
 204         .dashboard-theme-toggle:hover {
 205                 color: #563d7c;
 206                 text-decoration: none;
 207         }
 208         .dashboard-theme-toggle {
 209                 margin-top: 0;
 210         }
 211
 212         @media (min-width: 768px) {
 213                 .back-to-top,
 214                 .dashboard-theme-toggle {
 215                         display: block;
 216                 }
 217         }
 218
 219         /* Show and affix the side nav when space allows it */
 220         @media (min-width: 992px) {
 221                 .dashboard-sidebar .nav > .active > ul {
 222                         display: block;
 223                 }
 224                 /* Widen the fixed sidebar */
 225                 .dashboard-sidebar.affix,
 226                 .dashboard-sidebar.affix-bottom {
 227                         width: 213px;
 228                 }
 229                 .dashboard-sidebar.affix {
 230                         position: fixed; /* Undo the static from mobile first approach */
 231                         top: 20px;
 232                 }
 233                 .dashboard-sidebar.affix-bottom {
 234                         position: absolute; /* Undo the static from mobile first approach */
 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         @media (min-width: 1200px) {
 243                 /* Widen the fixed sidebar again */
 244                 .dashboard-sidebar.affix-bottom,
 245                 .dashboard-sidebar.affix {
 246                         width: 263px;
 247                 }
 248         }
 249         </style>
 250
 251         <!-- you can set your netdata server globally, by ucommenting this -->
 252         <!-- you can also give a different server per chart, with the attribute: data-host="http://netdata.server:19999" -->
 253         <!-- <script> netdataServer = "http://box:19999"; </script> -->
 254
 255         <!-- load the dashboard manager - it will do the rest -->
 256         <script type="text/javascript" src="dashboard.js?v15"></script>
 257 </head>
 258
 259 <body data-spy="scroll" data-target="#sidebar">
 260         <nav class="navbar navbar-default navbar-fixed-top" role="banner">
 261                 <div class="container">
 262                         <div class="navbar-header">
 263                                 <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".navbar-collapse">
 264                                         <span class="sr-only">Toggle navigation</span>
 265                                         <span class="icon-bar"></span>
 266                                         <span class="icon-bar"></span>
 267                                         <span class="icon-bar"></span>
 268                                 </button>
 269                                 <a href="/" class="navbar-brand" id="hostname">netdata</a>
 270                         </div>
 271                         <nav class="collapse navbar-collapse navbar-right" role="navigation">
 272                                 <ul class="nav navbar-nav">
 273                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 274                                         <li><a href="https://github.com/firehol/netdata" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 275                                         <li><a href="old/" class="btn" target="_blank"><i class="fa fa-step-backward"></i> old dashboard</a></li>
 276 <!--                                    <li><a href="#sec">Visualize</a></li>
 277                                         <li><a href="#sec">Prototype</a></li>
 278 -->                             </ul>
 279                         </nav>
 280                 </div>
 281         </nav>
 282
 283         <div id="masthead" style="display: none;">
 284                 <div class="container">
 285                         <div class="row">
 286                                 <div class="col-md-7">
 287                                         <h1>Netdata Dashboard
 288                                                 <p class="lead">Real time data collection and graphs...</p>
 289                                         </h1>
 290                                 </div>
 291                                 <div class="col-md-5">
 292                                         <div class="well well-lg">
 293                                                 <div class="row">
 294                                                 <div class="col-md-6">
 295                                                         <b>Drag</b> charts to pan.
 296                                                         <b>Shift + wheel</b> on them, to zoom in and out.
 297                                                         <b>Double-click</b> on them, to reset.
 298                                                         <b>Hover</b> on them too!
 299                                                         </div>
 300                                                 <div class="col-md-6">
 301                                                         <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>
 302                                                         </div>
 303                                                 </div>
 304                                         </div>
 305                                 </div>
 306                         </div>
 307                 </div>
 308         </div>
 309
 310         <div class="container">
 311                 <div class="row">
 312                         <div class="col-md-10" role="main">
 313                                 <div id="charts_div"></div>
 314                         </div>
 315                         <div class="col-md-2" role="complementary">
 316                                 <nav class="dashboard-sidebar hidden-print hidden-xs hidden-sm" id="sidebar" role="menu"></nav>
 317                         </div>
 318                 </div>
 319         </div>
 320
 321         <div id="footer" class="container" style="display: none;">
 322                 <div class="row">
 323                         <div class="col-md-10" role="main">
 324                                 <div class="p">
 325                                         <big><a href="https://github.com/firehol/netdata" target="_blank">netdata</a></big><br/>
 326                                         <i class="fa fa-copyright"></i> Copyright 2016, Costa Tsaousis.<br/>
 327                                         Released under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank">GPL v3 or later</a>.<br/>
 328                                 </div>
 329                                 <div class="p">
 330                                         <small>
 331                                                 <a href="https://github.com/firehol/netdata" target="_blank">netdata</a> re-distributes these software tools:
 332
 333                                                 <i class="fa fa-circle"></i> The excellent <a href="http://dygraphs.com/" target="_blank">Dygraphs.com</a> web chart library,
 334                                                 <i class="fa fa-copyright"></i> Copyright 2009, Dan Vanderkam, <a href="http://dygraphs.com/legal.html" target="_blank">MIT License</a>
 335
 336                                                 <i class="fa fa-circle"></i> <a href="http://omnipotent.net/jquery.sparkline/" target="_blank">jQuery Sparklines</a> web chart library,
 337                                                 <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>
 338
 339                                                 <i class="fa fa-circle"></i> <a href="http://benpickles.github.io/peity/" target="_blank">Peity</a> web chart library,
 340                                                 <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>
 341
 342                                                 <i class="fa fa-circle"></i> <a href="https://rendro.github.io/easy-pie-chart/" target="_blank">Easy Pie Chart</a> web chart library,
 343                                                 <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>
 344
 345                                                 <i class="fa fa-circle"></i> <a href="https://jquery.org/" target="_blank">jQuery</a>,
 346                                                 <i class="fa fa-copyright"></i> Copyright 2015, jQuery Foundation, <a href="https://jquery.org/license/" target="_blank">MIT License</a>
 347
 348                                                 <i class="fa fa-circle"></i> <a href="http://getbootstrap.com/getting-started/" target="_blank">Bootstrap</a>,
 349                                                 <i class="fa fa-copyright"></i> Copyright 2015, Twitter, <a href="http://getbootstrap.com/getting-started/#license-faqs" target="_blank">MIT License</a>
 350
 351                                                 <i class="fa fa-circle"></i> <a href="http://www.bootstraptoggle.com/" target="_blank">Bootstrap Toggle</a>,
 352                                                 <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>
 353
 354                                                 <i class="fa fa-circle"></i> <a href="https://jamesflorentino.github.io/nanoScrollerJS/" target="_blank">NanoScroller</a>,
 355                                                 <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>
 356
 357                                                 <i class="fa fa-circle"></i> <a href="https://github.com/marcj/css-element-queries" target="_blank">CSS Element Queries</a>,
 358                                                 <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>
 359
 360                                                 <i class="fa fa-circle"></i> <a href="https://fortawesome.github.io/Font-Awesome/" target="_blank">FontAwesome</a>,
 361                                                 <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>
 362
 363                                                 <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.
 364
 365                                                 <i class="fa fa-circle"></i> <a href="http://morrisjs.github.io/morris.js/" target="_blank">morris.js</a>,
 366                                                 <i class="fa fa-copyright"></i> Copyright 2013, Olly Smith, <a href="http://morrisjs.github.io/morris.js/" target="_blank">Simplified BSD License</a>
 367
 368                                                 <i class="fa fa-circle"></i> <a href="http://raphaeljs.com/" target="_blank">Raphaël</a>,
 369                                                 <i class="fa fa-copyright"></i> Copyright 2008, Dmitry Baranovskiy, <a href="http://raphaeljs.com/license.html" target="_blank">MIT License</a>
 370
 371                                                 <i class="fa fa-circle"></i> <a href="http://C3js.org/" target="_blank">C3</a>,
 372                                                 <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>
 373
 374                                                 <i class="fa fa-circle"></i> <a href="http://D3js.org/" target="_blank">D3</a>,
 375                                                 <i class="fa fa-copyright"></i> Copyright 2015, Mike Bostock, <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">BSD License</a>
 376
 377                                         </small>
 378                                 </div>
 379                         </div>
 380                 </div>
 381         </div>
 382
 383         <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
 384                 <div class="modal-dialog modal-lg" role="document">
 385                         <div class="modal-content">
 386                                 <div class="modal-header">
 387                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 388                                         <h4 class="modal-title" id="welcomeModalLabel">Welcome to netdata!</h4>
 389                                 </div>
 390                                 <div class="modal-body">
 391                                                 <div class="p">
 392                                                 <b><a href="https://github.com/firehol/netdata/" target="_blank">netdata</a></b> is the fastest way to visualize data. It is a resource efficient, highly optimized system for collecting and visualizing any type of realtime timeseries data, from CPU usage, disk activity, SQL queries, to web site visitors, e-shop orders, revenue and profits.
 393                                                 </div>
 394                                                 <div class="p">
 395                                                 To make a chart in <b><a href="https://github.com/firehol/netdata/" 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/" target="_blank">netdata</a></b> will turn this number to a real time web chart. For collecting these numbers, it supports <a href="https://github.com/firehol/netdata/tree/master/plugins.d" target="_blank">external plugins</a>, even <a href="https://github.com/firehol/netdata/tree/master/charts.d" target="_blank">bash shell plugins</a>. Any computer program, in any language, that can print a few lines of text on its standard output, can be a netdata data collector.
 396                                                 </div>
 397                                                 <div class="p">
 398                                                 <b><a href="https://github.com/firehol/netdata/" 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>%),
 399                                                 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).
 400                                                 </div>
 401                                                 <div class="p">
 402                                                 You can have <b><a href="https://github.com/firehol/netdata/" 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/" target="_blank">netdata</a></b> performance - <a href="https://github.com/firehol/netdata/issues/36" target="_blank">a raspberry pi 2 can sustain 300 charts updates per second</a>!).
 403                                                 </div>
 404                                                 <div class="p">
 405                                                 If you like this project, <b>we need help writing documentation, coding plugins, testing new features, supporting end users.</b>
 406                                                 </div>
 407                                                 <div class="p">
 408                                                 We will be glad to have you on board...
 409                                                 </div>
 410                                 </div>
 411                                 <div class="modal-footer">
 412                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 413                                 </div>
 414                         </div>
 415                 </div>
 416         </div>
 417
 418         <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
 419                 <div class="modal-dialog modal-lg" role="document">
 420                         <div class="modal-content">
 421                                 <div class="modal-header">
 422                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 423                                         <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
 424                                 </div>
 425                                 <div class="modal-body">
 426                                         <form id="optionsForm" method="get" class="form-horizontal">
 427                                                 <div class="form-group">
 428                                                         <center>
 429                                                                 <small style="color: #BBBBBB;">Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
 430                                                                 <br/>
 431                                                                 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="NETDATA.resetOptions(); return false;">here</a>.</small>
 432                                                         </center>
 433
 434                                                         <table>
 435                                                         <tr class="option-row">
 436                                                                 <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>
 437                                                                 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
 438                                                                         <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>
 439                                                                 </td>
 440                                                                 </tr>
 441                                                         <tr class="option-row">
 442                                                                 <td class="option-control">
 443                                                                 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
 444                                                                 </td>
 445                                                                 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
 446                                                                         <small>When set to <b>Non Zero</b>, dimensions that have all their values (within the current view) set to zero will not be transfered from the netdata server (except if all dimensions of the chart are zero, in which case this setting does nothing - all dimensions are transfered 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 transfered 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>
 447                                                                 </td>
 448                                                                 </tr>
 449                                                         <tr class="option-row">
 450                                                                 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
 451                                                                 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
 452                                                                         <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>
 453                                                                 </td>
 454                                                                 </tr>
 455                                                         <tr class="option-row">
 456                                                                 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequencial" data-width="110px"></td>
 457                                                                 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
 458                                                                         <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>sequencial</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 sequencial if you work on an older/slower computer.</small>
 459                                                                 </td>
 460                                                                 </tr>
 461                                                         <tr class="option-row" id="concurrent_refreshes_row">
 462                                                                 <td class="option-control"></td>
 463                                                                 <td class="option-info">
 464                                                                         <table>
 465                                                                         <tr class="option-row">
 466                                                                         <td class="option-control">
 467                                                                         <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
 468                                                                         </td>
 469                                                                         <td class="option-info">
 470                                                                         <strong>Shall we re-sync chart refreshes?</strong><br/>
 471                                                                         <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>
 472                                                                         </td>
 473                                                                         </tr>
 474                                                                         </table>
 475                                                                 </td>
 476                                                                 </tr>
 477                                                         <tr class="option-row">
 478                                                                 <td class="option-control"><input id="sync_selection" type="checkbox" checked data-toggle="toggle" data-on="Sync" data-off="Don't Sync" data-width="110px"></td>
 479                                                                 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
 480                                                                         <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>
 481                                                                 </td>
 482                                                                 </tr>
 483                                                         <tr class="option-row">
 484                                                                 <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-width="110px"></td>
 485                                                                 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
 486                                                                         <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>
 487                                                                 </td>
 488                                                                 </tr>
 489                                                         <tr class="option-row">
 490                                                                 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle"  data-on="Smooth" data-off="Rough" data-width="110px"></td>
 491                                                                 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
 492                                                                         <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.</small>
 493                                                                 </td>
 494                                                                 </tr>
 495                                                         </table>
 496                                                 </div>
 497                                         </form>
 498                                 </div>
 499                                 <div class="modal-footer">
 500                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 501                                 </div>
 502                         </div>
 503                 </div>
 504         </div>
 505
 506 </body>
 507 </html>
 508 <script>
 509
 510 var demo_hostname = 'netdata.firehol.org';
 511 // var demo_hostname = 'box';
 512
 513 if(document.location.hostname === demo_hostname) {
 514         document.getElementById('masthead').style.display = 'block';
 515 }
 516
 517 var options = {
 518         sparklines_registry: {},
 519         interfaces_registry: {},
 520         data: null,
 521         hostname: 'netdata_server', // will be overwritten by the netdata server
 522         categories: new Array(),
 523         categories_idx: {},
 524         families: new Array(),
 525         families_idx: {},
 526
 527         chartsPerRow: 0,
 528         chartsMinWidth: 1450,
 529         chartsHeight: 180,
 530         sparklinesHeight: 60
 531 };
 532
 533 // generate a sparkline
 534 // used in the documentation
 535 function sparkline(chart, dimension, units) {
 536         var key = chart + '.' + dimension;
 537
 538         if(typeof units === 'undefined')
 539                 units = '';
 540
 541         if(typeof options.sparklines_registry[key] === 'undefined')
 542                 options.sparklines_registry[key] = { count: 1 };
 543         else
 544                 options.sparklines_registry[key].count++;
 545
 546         key = key + '.' + options.sparklines_registry[key].count;
 547
 548         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 + ')';
 549
 550         return h;
 551 }
 552
 553 // documentation for each category and chart
 554 var messages = {
 555
 556         // categories / sections
 557         'system': 'Overview of the key system metrices.',
 558         'tc': '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.',
 559         'net': 'Per network interface statistics collected from <code>/proc/net/dev</code>.',
 560         'apps': '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 internaly 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 childs continiously, 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 childs 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 unrealisting utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
 561
 562         // charts
 563         'system.cpu': '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.',
 564         'system.io': '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.',
 565         'system.swapio': '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).',
 566         'system.pgfaults': '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.',
 567         'system.entropy': '<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.',
 568         'system.forks': 'The number of new processes created per second, read from <code>/proc/stat</code>.',
 569         'system.intr': '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.',
 570         'system.interrupts': 'CPU interrupts in detail, read from <code>/proc/interrupts</code>. At the <a href="#cpu">CPUs</a> section, interrupts are analyzed per CPU core.',
 571         'system.softirqs': 'CPU softirqs in detail, read from <code>/proc/softirqs</code>. At the <a href="#cpu">CPUs</a> section, softirqs are analyzed per CPU core.',
 572         'system.processes': '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.',
 573         'system.ctxt': '<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.',
 574         'system.idlejitter': '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 different between the requested and the actual duration of the sleep, is the <b>idle jitter</b>. This number is useful in realtime environments, where CPU jitter can affect the quality of the service (like VoIP media gateways).',
 575         'system.ipv4': 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>. This includes <code>lo</code> device traffic.',
 576         'system.ram': 'System memory, read from <code>/proc/meminfo</code>.',
 577         'system.swap': 'System swap memory, read from <code>/proc/meminfo</code>.',
 578
 579         // just a line to allow ending all entries above with comma
 580         'end': 'end'
 581 };
 582
 583 function screenWidth() {
 584         return (($(window).width() * 0.95) - 50);
 585 }
 586
 587 function chartsPerRow(total) {
 588         if(options.chartsPerRow === 0) {
 589                 width = Math.floor(total / options.chartsMinWidth);
 590                 if(width === 0) width = 1;
 591                 return width;
 592         }
 593         else return options.chartsPerRow;
 594 }
 595
 596 function chartsPrioritySort(a, b) {
 597         if(a.priority === b.priority) {
 598                 if(a.name < b.name) return -1;
 599         }
 600         else if(a.priority < b.priority) return -1;
 601         return 1;
 602 }
 603
 604 function uniq(array, find_key, get_result) {
 605         if(typeof get_result === 'undefined' || get_result === null)
 606                 get_result = find_key;
 607
 608         var idx = {};
 609         var result = new Array();
 610
 611         $.each(array, function(i, c) {
 612                 key = find_key(c);
 613                 if(typeof idx[key] === 'undefined') {
 614                         idx[key] = true;
 615                         result.push(get_result(c));
 616                 }
 617         });
 618         return result;
 619 }
 620
 621 function uniq_with_list(array, find_key_function) {
 622         var idx = {};
 623         var result = new Array();
 624
 625         $.each(array, function(i, c) {
 626                 key = find_key_function(c);
 627                 if(typeof idx[key] === 'undefined') {
 628                         idx[key] = new Array();
 629                         result.push( { name: key, values: idx[key] } );
 630                 }
 631                 idx[key].push(c);
 632         });
 633         result.sort(function(a, b) {
 634                 if(a.name < b.name) return -1;
 635                 return 1;
 636         });
 637         return result;
 638 }
 639
 640 function prepareScreen(data) {
 641         // console.log('NETDATA is paused - ready to prepare the screen');
 642         // console.log(data);
 643
 644         options.data = data;
 645         options.hostname = data.hostname;
 646         document.getElementById('hostname').innerHTML = options.hostname;
 647         document.title = options.hostname + ' dashboard';
 648         var charts = data.charts;
 649
 650         function name2id(s) {
 651                 return s
 652                         .replace(' ', '_')
 653                         .replace('(', '_')
 654                         .replace(')', '_')
 655                         .replace('/', '_');
 656         }
 657
 658         $.each(charts, function(i, c) {
 659                 if(c.enabled === true) {
 660
 661                         // find the category of the chart
 662                         c.category = c.type.split('.')[0];
 663
 664                         var tmp = c.category.split('_')[0];
 665                         if(tmp === 'net' || tmp === 'disk' || tmp === 'ap')
 666                                 c.category = tmp;
 667
 668                         switch(c.category) {
 669                                 case 'system':
 670                                         c.category_priority = 10;
 671                                         c.category_title = 'System Summary';
 672                                         c.glyphicon = "glyphicon-dashboard";
 673                                         break;
 674
 675                                 case 'tc':
 676                                         c.category_priority = 20;
 677                                         c.category_title = 'Quality Of Service';
 678                                         c.glyphicon = "glyphicon-random";
 679
 680                                         // find the name of the interface from the tc family
 681                                         if(typeof options.interfaces_registry[c.family] === 'undefined' || options.interfaces_registry[c.family] === c.family)
 682                                                  options.interfaces_registry[c.family] = c.name.split('.')[1].split('_')[0];
 683
 684                                         break;
 685
 686                                 case 'net':
 687                                         c.category_priority = 30;
 688                                         c.category_title = 'Network Interfaces';
 689                                         c.glyphicon = "glyphicon-transfer";
 690                                         break;
 691
 692                                 case 'ap':
 693                                         c.category_priority = 35;
 694                                         c.category_title = 'Access Points';
 695                                         c.glyphicon = "glyphicon-transfer";
 696                                         break;
 697
 698                                 case 'apps':
 699                                         c.category_priority = 40;
 700                                         c.category_title = 'Applications Monitoring';
 701                                         c.glyphicon = "glyphicon-tasks";
 702                                         break;
 703
 704                                 case 'ipvs':
 705                                         c.category_priority = 50;
 706                                         c.category_title = 'IP Virtual Server';
 707                                         c.glyphicon = "glyphicon-transfer";
 708                                         break;
 709
 710                                 case 'netfilter':
 711                                         c.category_priority = 60;
 712                                         c.category_title = 'Netfilter / IPTables';
 713                                         c.glyphicon = "glyphicon-cloud";
 714                                         break;
 715
 716                                 case 'ipv4':
 717                                         c.category_priority = 70;
 718                                         c.category_title = 'IPv4 Summary';
 719                                         c.glyphicon = "glyphicon-globe";
 720                                         break;
 721
 722                                 case 'mem':
 723                                         c.category_priority = 80;
 724                                         c.category_title = 'Memory';
 725                                         c.glyphicon = "glyphicon-dashboard";
 726                                         break;
 727
 728                                 case 'cpu':
 729                                         c.category_priority = 90;
 730                                         c.category_title = 'CPU Cores';
 731                                         c.glyphicon = "glyphicon-dashboard";
 732
 733                                         if(c.id.match(/^cpu\.cpu[0-9]+$/)) {
 734                                                 c.family = 'Utilization';
 735                                         }
 736                                         else if(c.id.match(/^cpu\.cpu[0-9]+_interrupts$/)) {
 737                                                 c.family = 'Interrupts';
 738                                         }
 739                                         else if(c.id.match(/^cpu\.cpu[0-9]+_softirqs$/)) {
 740                                                 c.family = 'SoftIRQs';
 741                                         }
 742
 743                                         break;
 744
 745                                 case 'disk':
 746                                         c.category_priority = 100;
 747                                         c.category_title = 'Disks';
 748                                         c.glyphicon = "glyphicon-hdd";
 749                                         break;
 750
 751                                 case 'nfsd':
 752                                         c.category_priority = 110;
 753                                         c.category_title = 'NFS Server';
 754                                         c.glyphicon = "glyphicon-hdd";
 755                                         break;
 756
 757                                 case 'squid':
 758                                         c.category_priority = 140;
 759                                         c.category_title = 'Proxy Server';
 760                                         c.glyphicon = "glyphicon-link";
 761                                         break;
 762
 763                                 case 'netdata':
 764                                         c.category_priority = 150;
 765                                         c.category_title = 'Netdata Monitoring';
 766                                         c.glyphicon = "glyphicon-thumbs-up";
 767                                         break;
 768
 769                                 case 'sensors':
 770                                         c.category_priority = 160;
 771                                         c.category_title = 'Hardware Sensors';
 772                                         c.glyphicon = "glyphicon-thumbs-up";
 773                                         break;
 774
 775                                 case 'postfix':
 776                                         c.category_priority = 170;
 777                                         c.category_title = 'Mail Server';
 778                                         c.glyphicon = "glyphicon-thumbs-up";
 779                                         break;
 780
 781                                 case 'example':
 782                                         c.category_priority = 100000;
 783                                         c.category_title = 'Example Plugins';
 784                                         c.glyphicon = "glyphicon-search";
 785                                         break;
 786
 787                                 default:
 788                                         c.category_priority = 150;
 789                                         c.category_title = c.type;
 790                                         c.glyphicon = "glyphicon-dashboard";
 791                                         break;
 792                         }
 793
 794                         // find the unique categories
 795                         if(typeof options.categories_idx[c.category] === 'undefined') {
 796                                 options.categories_idx[c.category] = {
 797                                         charts: new Array()
 798                                 }
 799                                 options.categories.push({
 800                                         name: c.category,
 801                                         title: c.category_title,
 802                                         priority: c.category_priority,
 803                                         glyphicon: c.glyphicon,
 804                                         charts: options.categories_idx[c.category].charts
 805                                 });
 806                         }
 807                         options.categories_idx[c.category].charts.push(c);
 808
 809                         // find the unique families
 810                         if(typeof options.families_idx[c.family] === 'undefined') {
 811                                 options.families_idx[c.family] = {
 812                                         charts: new Array()
 813                                 };
 814                                 options.families.push({
 815                                         name: c.family,
 816                                         title: c.family,
 817                                         priority: c.category_priority,
 818                                         glyphicon: c.glyphicon,
 819                                         charts: options.categories_idx[c.category].charts
 820                                 });
 821                         }
 822                         options.families_idx[c.family].charts.push(c);
 823                 }
 824         });
 825
 826         function prioritySort(a, b) {
 827                 if(a.priority < b.priority) return -1;
 828                 if(a.priority > b.priority) return 1;
 829                 if(a.name < b.name) return -1;
 830                 return 1;
 831         }
 832
 833         // sort all of them
 834         options.categories.sort(prioritySort);
 835         options.families.sort(prioritySort);
 836         $.each(options.families,   function(i, c) { c.charts.sort(prioritySort); });
 837
 838         var div = document.getElementById('charts_div');
 839         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
 840
 841         // find the proper duration for per-second updates
 842         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
 843         var html = '';
 844         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
 845
 846         function getMessage(id) {
 847                 if(typeof messages[id] !== 'undefined')
 848                         return '<div class="chart-message" role="document">' + messages[id] + '</div>';
 849                 else
 850                         return '';
 851         }
 852
 853         // render the charts
 854         $.each(options.categories, function(i, t) {
 855                 t.charts.sort(prioritySort);
 856
 857                 sidebar += '<li class="' + ((i === 0)?'active':'').toString() + '"><a href="#' + name2id(t.name) + '">' + t.title + '</a>';
 858                 html += '<div role="section"><div role="sectionhead"><h1 id="' + name2id(t.name) + '" role="heading">' + t.title + '</h1>' + getMessage(t.name) + '</div><div id="' + name2id(t.name) + '" role="document">';
 859
 860                 if(t.name === 'cpu') {
 861                         var families = uniq_with_list(t.charts, function(c) { return c.family; });
 862
 863                         sidebar += '<ul class="nav">';
 864                         $.each(families, function(j, c) {
 865                                 sidebar += '<li class><a href="#' + name2id(t.name) + '_' + name2id(c.name) + '">' + c.name + '</a></li>';
 866                                 html += '<div class="netdata-group-container" id="family_' + name2id(t.name) + '_' + name2id(c.name) + '" style="display: inline-block; width: ' + pcent_width.toString() + '%"><h2 id="' + name2id(t.name) + '_' + name2id(c.name) + '" class="netdata-chart-alignment" role="heading">' + c.name + '</h2>';
 867                                 $.each(c.values, function(x, f) {
 868                                         var c = null;
 869                                         var h = options.chartsHeight;
 870
 871                                         html += getMessage(f.id) + '<div data-netdata="' + f.id + '"'
 872                                                 + ' data-width="100%"'
 873                                                 + ' data-height="' + h.toString() + 'px"'
 874                                                 + ' data-before="0"'
 875                                                 + ' data-after="-' + duration.toString() + '"'
 876                                                 + ' data-colors="' + c + '"'
 877                                                 + ' data-id="' + name2id(options.hostname + '/' + f.id) + '"'
 878                                                 + ' role="application"></div>';
 879                                 });
 880                                 html += '</div>'; // netdata-group-container
 881                         });
 882                         sidebar += '</ul>';
 883                 }
 884                 else if(t.name === 'net' || t.name === 'tc' || t.name === 'ap') {
 885                         var interfaces = uniq_with_list(t.charts, function(c) { return c.family; });
 886
 887                         sidebar += '<ul class="nav">';
 888                         $.each(interfaces, function(j, c) {
 889                                 var menuitem = c.name;
 890                                 var name = options.interfaces_registry[menuitem];
 891                                 if(typeof name !== 'undefined' && name !== menuitem)
 892                                         menuitem = menuitem + ' (' + name + ')';
 893
 894                                 sidebar += '<li class><a href="#' + name2id(t.name) + '_' + name2id(c.name) + '">' + menuitem + '</a></li>';
 895                                 html += '<div class="netdata-group-container" id="interface_' + name2id(t.name) + '_' + name2id(c.name) + '" style="display: inline-block; width: ' + pcent_width.toString() + '%"><h2 id="' + name2id(t.name) + '_' + name2id(c.name) + '" class="netdata-chart-alignment" role="heading">' + menuitem + '</h2>';
 896                                 $.each(c.values, function(x, f) {
 897                                         var c = null;
 898                                         var h = options.chartsHeight / 2;
 899                                         switch(f.type) {
 900                                                 case 'net'         : h = options.chartsHeight; break;
 901                                                 case 'tc'          : h = options.chartsHeight; break;
 902                                                 case 'ap_bandwidth': h = options.chartsHeight; break;
 903                                                 case 'ap_bitrate'  : h = options.chartsHeight; break;
 904                                         }
 905
 906                                         html += getMessage(f.id) + '<div data-netdata="' + f.id + '"'
 907                                                 + ' data-width="100%"'
 908                                                 + ' data-height="' + h.toString() + 'px"'
 909                                                 + ' data-before="0"'
 910                                                 + ' data-after="-' + duration.toString() + '"'
 911                                                 + ' data-colors="' + c + '"'
 912                                                 + ' data-id="' + name2id(options.hostname + '/' + f.id) + '"'
 913                                                 + ' role="application"></div>';
 914                                 });
 915                                 html += '</div>'; // netdata-group-container
 916                         });
 917                         sidebar += '</ul>';
 918                 }
 919                 else if(t.name === 'disk') {
 920                         var disks = uniq_with_list(t.charts, function(c) { return c.family; });
 921
 922                         sidebar += '<ul class="nav">';
 923                         $.each(disks, function(j, c) {
 924                                 sidebar += '<li class><a href="#' + name2id(c.name) + '">' + c.name + '</a></li>';
 925                                 html += '<div class="netdata-group-container" id="disk_' + name2id(c.name) + '" style="display: inline-block; width: ' + pcent_width.toString() + '%"><h2 id="' + name2id(c.name) + '" class="netdata-chart-alignment" role="heading">' + c.name + '</h2>';
 926                                 var head = '<div class="netdata-chart-alignment">';
 927                                 var all = '';
 928                                 $.each(c.values, function(x, f) {
 929                                         var c = null;
 930                                         var h = options.chartsHeight / 2;
 931                                         switch(f.type) {
 932                                                 case 'disk'        : h = options.chartsHeight;
 933                                                                 head += '<div style="margin-right: 10px;" data-netdata="' + f.id + '"'
 934                                                                 + ' data-dimensions="reads"'
 935                                                                 + ' data-chart-library="easypiechart"'
 936                                                                 + ' data-title="Read"'
 937                                                                 + ' data-width="120px"'
 938                                                                 + ' data-height="120px"'
 939                                                                 + ' data-before="0"'
 940                                                                 + ' data-after="-' + duration.toString() + '"'
 941                                                                 + ' data-points="' + duration.toString() + '"'
 942                                                                 + ' data-colors="' + NETDATA.colors[0] + '"'
 943                                                                 + ' role="application"></div>';
 944
 945                                                                 head += '<div style="margin-right: 10px;" data-netdata="' + f.id + '"'
 946                                                                 + ' data-dimensions="writes"'
 947                                                                 + ' data-chart-library="easypiechart"'
 948                                                                 + ' data-title="Write"'
 949                                                                 + ' data-width="120px"'
 950                                                                 + ' data-height="120px"'
 951                                                                 + ' data-before="0"'
 952                                                                 + ' data-after="-' + duration.toString() + '"'
 953                                                                 + ' data-points="' + duration.toString() + '"'
 954                                                                 + ' data-colors="' + NETDATA.colors[1] + '"'
 955                                                                 + ' role="application"></div>';
 956                                                                 break;
 957                                                 case 'disk_backlog': c = '#DD4477'; break;
 958                                                 case 'disk_util'   : c = '#109618';
 959                                                                 head += '<div style="margin-right: 10px;" data-netdata="' + f.id + '"'
 960                                                                 + ' data-chart-library="easypiechart"'
 961                                                                 + ' data-title="Utilization"'
 962                                                                 + ' data-easypiechart-max-value="100"'
 963                                                                 + ' data-width="120px"'
 964                                                                 + ' data-height="120px"'
 965                                                                 + ' data-before="0"'
 966                                                                 + ' data-after="-' + duration.toString() + '"'
 967                                                                 + ' data-points="' + duration.toString() + '"'
 968                                                                 + ' data-colors="' + c + '"'
 969                                                                 + ' role="application"></div>';
 970                                                                 break;
 971                                                 case 'disk_qops'   : c = '#E67300'; break;
 972                                         }
 973
 974                                         all += getMessage(f.id) + '<div data-netdata="' + f.id + '"'
 975                                                 + ' data-width="100%"'
 976                                                 + ' data-height="' + h.toString() + 'px"'
 977                                                 + ' data-before="0"'
 978                                                 + ' data-after="-' + duration.toString() + '"'
 979                                                 + ' data-colors="' + c + '"'
 980                                                 + ' data-id="' + name2id(options.hostname + '/' + f.id) + '"'
 981                                                 + ' role="application"></div>';
 982                                 });
 983                                 head += '</div>';
 984                                 html += head + all + '</div>'; // netdata-group-container
 985                         });
 986                         sidebar += '</ul>';
 987                 }
 988                 else if(t.name === 'apps') {
 989                         $.each(t.charts, function(x, f) {
 990                                 var c = null;
 991                                 var h = options.chartsHeight / 2;
 992                                 switch(f.id) {
 993                                         case 'apps.cpu'         : h = options.chartsHeight; break;
 994                                         case 'apps.preads'      : h = options.chartsHeight; break;
 995                                         case 'apps.pwrites'     : h = options.chartsHeight; break;
 996                                         case 'apps.mem'         : h = options.chartsHeight; break;
 997                                         case 'apps.major_faults': h = options.chartsHeight; break;
 998                                 }
 999
1000                                 html += getMessage(f.id) + '<div data-netdata="' + f.id + '"'
1001                                         + ' data-width="100%"'
1002                                         + ' data-height="' + h.toString() + 'px"'
1003                                         + ' data-before="0"'
1004                                         + ' data-after="-' + duration.toString() + '"'
1005                                         + ' data-colors="' + c + '"'
1006                                         + ' data-id="' + name2id(options.hostname + '/' + f.id) + '"'
1007                                         + ' role="application"></div>';
1008                         });
1009                 }
1010                 else {
1011                         $.each(t.charts, function(x, f) {
1012                                 html += getMessage(f.id) + '<div data-netdata="' + f.id + '"'
1013                                         + ' data-width="' + pcent_width.toString() + '%"'
1014                                         + ' data-height="' + options.chartsHeight.toString() + 'px"'
1015                                         + ' data-before="0"'
1016                                         + ' data-after="-' + duration.toString() + '"'
1017                                         + ' data-id="' + name2id(options.hostname + '/' + f.id) + '"'
1018                                         + ' role="application"></div>';
1019                         });
1020                 }
1021
1022                 sidebar += '</li>';
1023                 html += '</div>'; // document
1024                 html += '</div>'; // section
1025                 html += '<hr role="separator"/>';
1026         });
1027         sidebar += '</ul>';
1028 /*
1029         // show the colors
1030         html += '<br/><div class="row">'
1031         $.each(NETDATA.colors, function(i, c){
1032                 html += '<div style="display: inline-block;"><div style="display: inline-block; width: 100px; height: 100px; background: ' + c + ';"></div><br/>' + c + '</div>';
1033         });
1034         html += '</div>'
1035 */
1036         div.innerHTML = html;
1037         document.getElementById('sidebar').innerHTML = sidebar;
1038
1039         // resize all charts - without starting the background thread
1040         // this has to be done while NETDATA is paused
1041         // if we ommit this, the affix menu will be wrong, since all
1042         // the Dom elements are initially zero-sized
1043         NETDATA.parseDom();
1044
1045         // let it run (update the charts)
1046         NETDATA.unpause();
1047
1048         // check if we have to jump to a specific section
1049         var hash = location.hash.replace('#','');
1050         if(hash != '') {
1051                 // Clear the hash in the URL
1052                 // location.hash = '';   // delete front "//" if you want to change the address bar
1053                 var offset = $(location.hash).offset();
1054                 if(typeof offset !== 'undefined')
1055                         $('html, body').animate({ scrollTop: offset.top }, 0);
1056         }
1057
1058         /* activate bootstrap sidebar (affix) */
1059         $('#sidebar').affix({
1060                 offset: {
1061                         top: (document.location.hostname === demo_hostname)?150:0,
1062                         bottom: 0
1063                 }
1064         });
1065
1066         /* fix scrolling of very long affix lists
1067            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
1068          */
1069         $('#sidebar').on('affixed.bs.affix', function() {
1070                 $(this).removeAttr('style');
1071         });
1072
1073         /* activate bootstrap scrollspy (needed for sidebar) */
1074         $(document.body).scrollspy({
1075                 target: '#sidebar',
1076                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
1077         });
1078
1079         document.getElementById('footer').style.display = 'block';
1080
1081
1082         var update_options_modal = function() {
1083                 // console.log('update_options_modal');
1084
1085                 var sync_option = function(option) {
1086                         var self = $('#' + option);
1087
1088                         if(self.prop('checked') !== NETDATA.getOption(option)) {
1089                                 // console.log('switching ' + option.toString());
1090                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
1091                         }
1092                 }
1093
1094                 sync_option('eliminate_zero_dimensions');
1095                 sync_option('destroy_on_hide');
1096                 sync_option('parallel_refresher');
1097                 sync_option('concurrent_refreshes');
1098                 sync_option('sync_selection');
1099                 sync_option('sync_pan_and_zoom');
1100                 sync_option('stop_updates_when_focus_is_lost');
1101                 sync_option('smooth_plot');
1102
1103                 if(NETDATA.getOption('parallel_refresher') === false) {
1104                         $('#concurrent_refreshes_row').hide();
1105                 }
1106                 else {
1107                         $('#concurrent_refreshes_row').show();
1108                 }
1109         };
1110         NETDATA.setOption('setOptionCallback', update_options_modal);
1111
1112         // handle options changes
1113         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
1114         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
1115         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
1116         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
1117         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
1118         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
1119         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
1120         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
1121
1122         if(document.location.hostname === demo_hostname)
1123                 setTimeout(function() {
1124                         $('#welcomeModal').modal();
1125                 }, 1000);
1126 }
1127
1128 NETDATA.pause(function() {
1129
1130         $('#welcomeModal').on('hidden.bs.modal', function (e) {
1131                 NETDATA.updatedDom();
1132         });
1133         $('#welcomeModal').on('shown.bs.modal', function (e) {
1134                 NETDATA.updatedDom();
1135         });
1136
1137         // download all the charts the server knows
1138         NETDATA.chartRegistry.downloadAll(NETDATA.serverDefault, function(data) {
1139
1140                 // prepare our DOM
1141                 // this will be called when NETDATA is paused
1142                 prepareScreen(data);
1143
1144                 // due to affix issues, prepareScreen() will unpause
1145                 // netdata as needed
1146         });
1147 });
1148
1149 </script>