web/index.html

   1 <!DOCTYPE html>
   2 <html lang="en">
   3 <head>
   4         <title>netdata dashboard</title>
   5         <meta name="application-name" content="netdata">
   6
   7         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   8         <meta charset="utf-8">
   9         <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  10         <meta name="viewport" content="width=device-width, initial-scale=1">
  11         <meta name="apple-mobile-web-app-capable" content="yes">
  12         <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
  13         <meta name="author" content="costa@tsaousis.gr">
  14
  15         <link rel="shortcut icon" href="images/seo-performance-multi-size.ico">
  16
  17         <link rel="apple-touch-icon" href="images/seo-performance-72.png">
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  20
  21         <link rel="icon" type="image/png" sizes="512x512" href="images/seo-performance-512.png">
  22         <link rel="icon" type="image/png" sizes="256x256" href="images/seo-performance-256.png">
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  27         <link rel="icon" type="image/png" sizes="24x24" href="images/seo-performance-24.png">
  28         <link rel="icon" type="image/png" sizes="16x16" href="images/seo-performance-16.png">
  29
  30         <meta property="og:locale" content="en_US" />
  31         <meta property="og:image" content="http://my-netdata.io/images/post.png"/>
  32         <meta property="og:url" content="http://my-netdata.io/"/>
  33         <meta property="og:type" content="website"/>
  34         <meta property="og:site_name" content="netdata"/>
  35         <meta property="og:title" content="netdata - real-time performance monitoring, done right!"/>
  36         <meta property="og:description" content="Stunning real-time dashboards, blazingly fast and extremely interactive. Zero configuration, zero dependencies, zero maintenance." />
  37
  38         <style>
  39
  40         /* prevent body from hiding under the navbar */
  41         body {
  42                 padding-top: 50px;
  43         }
  44
  45         .modal-wide .modal-dialog {
  46                 width: 80%;
  47         }
  48
  49         /* fix # anchors scrolling under the navbar
  50            https://github.com/twbs/bootstrap/issues/1768#issuecomment-46519033
  51          */
  52         h1 {
  53                 position: relative;
  54                 z-index: -1;
  55         }
  56         h2 {
  57                 position: relative;
  58                 z-index: -2;
  59         }
  60         h1:before, h2:before {
  61                 display: block;
  62                 content: " ";
  63                 margin-top: -70px;
  64                 height: 70px;
  65                 visibility: hidden;
  66         }
  67
  68         .p {
  69                 display: block;
  70                 margin-top: 15px;
  71         }
  72
  73         .option-row,
  74         .option-control {
  75                 vertical-align: top;
  76                 padding: 10px;
  77                 padding-top: 30px;
  78                 padding-left: 30px;
  79         }
  80
  81         .option-info {
  82                 padding: 10px;
  83         }
  84
  85         .chart-message {
  86                 display: block;
  87                 margin-top: 10px;
  88         }
  89
  90         .container {
  91                 width: 90% !important;
  92         }
  93
  94         #masthead h1 {
  95                 /*font-size: 30px;*/
  96                 line-height: 1;
  97                 padding-top: 30px;
  98         }
  99
 100         #masthead .well {
 101                 margin-top:4%;
 102         }
 103
 104         /* fix the navbar shifting when a modal is open */
 105         /* https://github.com/twbs/bootstrap/issues/14040#issuecomment-159891033 */
 106         body.modal-open{
 107                 width: 100% !important;
 108                 padding-right: 0 !important;
 109 /*              overflow-y: scroll !important; */
 110 /*              position: fixed !important;*/
 111                 overflow: visible;
 112         }
 113
 114         /*
 115          * Side navigation
 116          *
 117          * Scrollspy and affixed enhanced navigation to highlight sections and secondary
 118          * sections of docs content.
 119          */
 120
 121         .affix {
 122                 position: static;
 123                 top: 70px !important;
 124                 /*width: 220px;*/
 125         }
 126
 127         .affix-top {
 128                 /*width: 220px;*/
 129         }
 130
 131         .dashboard-sidebar {
 132                 max-height: calc(100% - 70px) !important;
 133                 overflow-y: auto;
 134                 /*width: 220px !important;*/
 135         }
 136
 137         /* By default it's not affixed in mobile views, so undo that */
 138         .dashboard-sidebar.affix {
 139                 position: static;
 140         }
 141
 142         @media (min-width: 768px) {
 143                 .dashboard-sidebar {
 144                         padding-left: 20px;
 145                 }
 146         }
 147
 148         /* First level of nav */
 149         .dashboard-sidenav {
 150                 margin-top: 20px;
 151                 margin-bottom: 20px;
 152         }
 153
 154         /* All levels of nav */
 155         .dashboard-sidebar .nav > li > a {
 156                 display: block;
 157                 padding: 4px 20px;
 158                 font-size: 13px;
 159                 font-weight: 500;
 160                 color: #767676;
 161         }
 162         .dashboard-sidebar .nav > li > a:hover,
 163         .dashboard-sidebar .nav > li > a:focus {
 164                 padding-left: 19px;
 165                 color: #563d7c;
 166                 text-decoration: none;
 167                 background-color: transparent;
 168                 border-left: 1px solid #563d7c;
 169         }
 170         .dashboard-sidebar .nav > .active > a,
 171         .dashboard-sidebar .nav > .active:hover > a,
 172         .dashboard-sidebar .nav > .active:focus > a {
 173                 padding-left: 18px;
 174                 font-weight: bold;
 175                 color: #563d7c;
 176                 background-color: transparent;
 177                 border-left: 2px solid #563d7c;
 178         }
 179
 180         /* Nav: second level (shown on .active) */
 181         .dashboard-sidebar .nav .nav {
 182                 display: none; /* Hide by default, but at >768px, show it */
 183                 padding-bottom: 10px;
 184         }
 185         .dashboard-sidebar .nav .nav > li > a {
 186                 padding-top: 1px;
 187                 padding-bottom: 1px;
 188                 padding-left: 30px;
 189                 font-size: 12px;
 190                 font-weight: normal;
 191         }
 192         .dashboard-sidebar .nav .nav > li > a:hover,
 193         .dashboard-sidebar .nav .nav > li > a:focus {
 194                 padding-left: 29px;
 195         }
 196         .dashboard-sidebar .nav .nav > .active > a,
 197         .dashboard-sidebar .nav .nav > .active:hover > a,
 198         .dashboard-sidebar .nav .nav > .active:focus > a {
 199                 padding-left: 28px;
 200                 font-weight: 500;
 201         }
 202
 203         .dropdown-menu {
 204                 min-width: 200px;
 205         }
 206         .dropdown-menu.columns-2 {
 207                 margin: 0;
 208                 padding: 0;
 209                 width: 400px;
 210         }
 211         .dropdown-menu li a {
 212                 padding: 5px 15px;
 213                 font-weight: 300;
 214         }
 215         .dropdown-menu.multi-column {
 216                 overflow-x: hidden;
 217         }
 218         .multi-column-dropdown {
 219                 list-style: none;
 220                 padding: 0;
 221         }
 222         .multi-column-dropdown li a {
 223                 display: block;
 224                 clear: both;
 225                 line-height: 1.428571429;
 226                 white-space: normal;
 227         }
 228         .multi-column-dropdown li a:hover {
 229                 text-decoration: none;
 230                 color: #f5f5f5;
 231                 background-color: #262626;
 232         }
 233         .scrollable-menu {
 234                 height: auto;
 235                 max-height: 80vh;
 236                 overflow-x: hidden;
 237         }
 238
 239         /* Back to top (hidden on mobile) */
 240         .back-to-top,
 241         .dashboard-theme-toggle {
 242                 display: none;
 243                 padding: 4px 10px;
 244                 margin-top: 10px;
 245                 margin-left: 10px;
 246                 font-size: 12px;
 247                 font-weight: 500;
 248                 color: #999;
 249         }
 250         .back-to-top:hover,
 251         .dashboard-theme-toggle:hover {
 252                 color: #563d7c;
 253                 text-decoration: none;
 254         }
 255         .dashboard-theme-toggle {
 256                 margin-top: 0;
 257         }
 258
 259         @media (min-width: 768px) {
 260                 .back-to-top,
 261                 .dashboard-theme-toggle {
 262                         display: block;
 263                 }
 264
 265                 /* Widen the fixed sidebar */
 266                 .dashboard-sidebar.affix,
 267                 .dashboard-sidebar.affix-top,
 268                 .dashboard-sidebar.affix-bottom {
 269                         width: 200px !important;
 270                 }
 271
 272                 .dashboard-sidebar.affix {
 273                         position: fixed; /* Undo the static from mobile first approach */
 274                         top: 20px;
 275                 }
 276
 277                 .dashboard-sidebar.affix-bottom {
 278                         position: absolute; /* Undo the static from mobile first approach */
 279                 }
 280
 281                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 282                 .dashboard-sidebar.affix .dashboard-sidenav {
 283                         margin-top: 0;
 284                         margin-bottom: 0;
 285                 }
 286         }
 287
 288         /* Show and affix the side nav when space allows it */
 289         @media (min-width: 992px) {
 290                 .dashboard-sidebar .nav > .active > ul {
 291                         display: block;
 292                 }
 293
 294                 /* Widen the fixed sidebar */
 295                 .dashboard-sidebar.affix,
 296                 .dashboard-sidebar.affix-top,
 297                 .dashboard-sidebar.affix-bottom {
 298                         width: 200px !important;
 299                 }
 300                 .dashboard-sidebar.affix {
 301                         position: fixed; /* Undo the static from mobile first approach */
 302                         top: 20px;
 303                 }
 304                 .dashboard-sidebar.affix-bottom {
 305                         position: absolute; /* Undo the static from mobile first approach */
 306                 }
 307                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 308                 .dashboard-sidebar.affix .dashboard-sidenav {
 309                         margin-top: 0;
 310                         margin-bottom: 0;
 311                 }
 312         }
 313
 314         @media (min-width: 1200px) {
 315                 /* Widen the fixed sidebar again */
 316                 .dashboard-sidebar.affix-bottom,
 317                 .dashboard-sidebar.affix-top,
 318                 .dashboard-sidebar.affix {
 319                         width: 263px;
 320                 }
 321         }
 322         </style>
 323
 324         <!-- you can set your netdata server globally, by ucommenting this -->
 325         <!-- you can also give a different server per chart, with the attribute: data-host="http://netdata.server:19999" -->
 326         <!-- <script> netdataServer = "http://box:19999"; </script> -->
 327
 328         <!-- check which theme to use -->
 329         <script>
 330                 function loadLocalStorage(name) {
 331                         var ret = null;
 332
 333                         try {
 334                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object')
 335                                         ret = localStorage.getItem(name);
 336                         }
 337                         catch(error) {
 338                                 ;
 339                         }
 340
 341                         if(typeof ret === 'undefined' || ret === null)
 342                                 return null;
 343
 344                         return ret;
 345                 }
 346
 347                 function saveLocalStorage(name, value) {
 348                         try {
 349                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object') {
 350                                         localStorage.setItem(name, value.toString());
 351                                         return true;
 352                                 }
 353                         }
 354                         catch(error) {
 355                                 ;
 356                         }
 357
 358                         return false;
 359                 }
 360
 361                 function getTheme(def) {
 362                         var ret = loadLocalStorage('netdataTheme');
 363                         if(typeof ret === 'undefined' || ret === null || ret === 'undefined')
 364                                 return def;
 365                         else
 366                                 return ret;
 367                 }
 368
 369                 var netdataTheme = getTheme('slate');
 370
 371                 function setTheme(theme) {
 372                         if(theme === netdataTheme) return false;
 373
 374                         return saveLocalStorage('netdataTheme', theme);
 375                 }
 376
 377                 var netdataRegistryCallback = function(machines_array) {
 378                         var el = '';
 379                         var a1 = '';
 380                         var found = 0;
 381
 382                         if(machines_array) {
 383                                 function name_comparator_desc(a, b) {
 384                                         if (a.name > b.name) return -1;
 385                                         if (a.name < b.name) return 1;
 386                                         return 0;
 387                                 }
 388
 389                                 var machines = machines_array.sort(name_comparator_desc);
 390                                 var len = machines.length;
 391                                 while(len--) {
 392                                         var u = machines[len];
 393                                         found++;
 394                                         el += '<li id="registry_server_' + u.guid + '"><a class="registry_link" href="' + u.url + '" onClick="return gotoServerModalHandler(\'' + u.guid + '\');">' + u.name + '</a></li>';
 395                                         a1 += '<li id="registry_action_' + u.guid + '"><a href="#" onclick="deleteRegistryModalHandler(\'' + u.guid + '\',\'' + u.name + '\',\'' + u.url + '\'); return false;"><i class="fa fa-trash-o" aria-hidden="true" style="color: #999;"></i></a></li>';
 396                                 }
 397                         }
 398
 399                         if(!found) {
 400                                 if(machines)
 401                                         el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #666;" target="_blank">your netdata server list is empty...</a></li>';
 402                                 else
 403                                         el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #666;" target="_blank">failed to contact the registry...</a></li>';
 404
 405                                 a1 += '<li><a href="#" onClick="return false;">&nbsp;</a></li>';
 406
 407                                 el += '<li role="separator" class="divider"></li>' +
 408                                                 '<li><a href="//london.netdata.rocks/default.html">EU - London (DigitalOcean.com)</a></li>' +
 409                                                 '<li><a href="//atlanta.netdata.rocks/default.html">US - Atlanta (CDN77.com)</a></li>' +
 410                                                 '<li><a href="//athens.netdata.rocks/default.html">EU - Athens</a></li>';
 411                                 a1 += '<li role="separator" class="divider"></li>' +
 412                                                 '<li><a href="#">&nbsp;</a></li>' +
 413                                                 '<li><a href="#">&nbsp;</a></li>'+
 414                                                 '<li><a href="#">&nbsp;</a></li>';
 415                         }
 416
 417                         el += '<li role="separator" class="divider"></li>';
 418                         a1 += '<li role="separator" class="divider"></li>';
 419
 420                         el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #999;" target="_blank">What is this?</a></li>';
 421                         a1 += '<li><a href="#" style="color: #999;" onclick="switchRegistryModalHandler(); return false;"><i class="fa fa-cog" aria-hidden="true" style="color: #999;"></i></a></li>'
 422
 423                         document.getElementById('mynetdata_servers').innerHTML = el;
 424                         document.getElementById('mynetdata_servers2').innerHTML = el;
 425                         document.getElementById('mynetdata_actions1').innerHTML = a1;
 426
 427                         gotoServerInit();
 428                 };
 429
 430         </script>
 431
 432         <!-- load the dashboard manager - it will do the rest -->
 433         <script type="text/javascript" src="dashboard.js?v40"></script>
 434 </head>
 435
 436 <body data-spy="scroll" data-target="#sidebar">
 437         <nav class="navbar navbar-default navbar-fixed-top" role="banner">
 438                 <div class="container">
 439                         <nav id="mynetdata_nav" class="collapse navbar-collapse navbar-left hidden-sm hidden-xs" role="navigation" style="padding-right: 20px;">
 440                                 <ul class="nav navbar-nav">
 441                                         <li class="dropdown">
 442                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">my-netdata <strong class="caret"></strong></a>
 443                                                 <ul class="dropdown-menu scrollable-menu inpagemenu multi-column columns-2" role="menu">
 444                                                         <div class="row">
 445                                                                 <div class="col-sm-6" style="width: 85%; padding-right: 0;">
 446                                                                         <ul id="mynetdata_servers" class="multi-column-dropdown">
 447                                                                                 <li><a href="#" onclick="return false;" style="color: #999;">loading...</a></li>
 448                                                                         </ul>
 449                                                                 </div>
 450                                                                 <div class="col-sm-3 hidden-xs" style="width: 15%; padding-left: 0;">
 451                                                                         <ul id="mynetdata_actions1" class="multi-column-dropdown">
 452                                                                         <li style="color: #999;">&nbsp;</li>
 453                                                                         </ul>
 454                                                                 </div>
 455                                                         </div>
 456                                                 </ul>
 457                                         </li>
 458                                 </ul>
 459                         </nav>
 460                         <div class="navbar-header">
 461                                 <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".navbar-collapse">
 462                                         <span class="sr-only">Toggle navigation</span>
 463                                         <span class="icon-bar"></span>
 464                                         <span class="icon-bar"></span>
 465                                         <span class="icon-bar"></span>
 466                                 </button>
 467                                 <a href="/" class="navbar-brand" id="hostname">netdata</a>
 468                         </div>
 469                         <nav class="collapse navbar-collapse navbar-right" role="navigation">
 470                                 <ul class="nav navbar-nav">
 471                                         <li class="hidden-sm"><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 472                                         <li class="hidden-sm"><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 473                                         <li class="hidden-sm" id="updateButton"><a href="#" class="btn" data-toggle="modal" data-target="#updateModal"><i class="fa fa-cloud-download"></i> update</a></li>
 474                                         <li class="hidden-sm"><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 475                                         <li class="dropdown hidden-md hidden-lg hidden-xs">
 476                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">Menu <strong class="caret"></strong></a>
 477                                                 <ul class="dropdown-menu scrollable-menu inpagemenu" role="menu">
 478                                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 479                                                         <li><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 480                                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 481                                                 </ul>
 482                                         </li>
 483                                         <li class="dropdown hidden-sm hidden-md hidden-lg">
 484                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">my-netdata <strong class="caret"></strong></a>
 485                                                 <ul id="mynetdata_servers2" class="dropdown-menu scrollable-menu inpagemenu" role="menu">
 486                                                         <li><a href="#" onclick="return false;" style="color: #999;">loading...</a></li>
 487                                                 </ul>
 488                                         </li>
 489                                 </ul>
 490                         </nav>
 491         </nav>
 492                 </div>
 493         </nav>
 494
 495         <div id="masthead" style="display: none;">
 496                 <div class="container">
 497                         <div class="row">
 498                                 <div class="col-md-7">
 499                                         <h1>Netdata
 500                                                 <p class="lead">Real-time performance monitoring, in the greatest possible detail</p>
 501                                         </h1>
 502                                 </div>
 503                                 <div class="col-md-5">
 504                                         <div class="well well-lg">
 505                                                 <div class="row">
 506                                                 <div class="col-md-6">
 507                                                         <b>Drag</b> charts to pan.
 508                                                         <b>Shift + wheel</b> on them, to zoom in and out.
 509                                                         <b>Double-click</b> on them, to reset.
 510                                                         <b>Hover</b> on them too!
 511                                                         </div>
 512                                                 <div class="col-md-6">
 513                                                         <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>
 514                                                         </div>
 515                                                 </div>
 516                                         </div>
 517                                 </div>
 518                         </div>
 519                 </div>
 520         </div>
 521
 522         <div class="container">
 523                 <div class="row">
 524                         <div class="col-md-10" role="main">
 525                                 <div id="charts_div"></div>
 526                         </div>
 527                         <div class="col-md-2" role="complementary">
 528                                 <nav class="dashboard-sidebar hidden-print hidden-xs hidden-sm" id="sidebar" role="menu"></nav>
 529                         </div>
 530                 </div>
 531         </div>
 532
 533         <div id="footer" class="container" style="display: none;">
 534                 <div class="row">
 535                         <div class="col-md-10" role="main">
 536                                 <div class="p">
 537                                         <big><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></big><br/>
 538                                         <i class="fa fa-copyright"></i> Copyright 2016, Costa Tsaousis.<br/>
 539                                         Released under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank">GPL v3 or later</a>.<br/>
 540                                 </div>
 541                                 <div class="p">
 542                                         <small>
 543                                                 <a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a> re-distributes these software tools:
 544
 545                                                 <i class="fa fa-circle"></i> The excellent <a href="http://dygraphs.com/" target="_blank">Dygraphs.com</a> web chart library,
 546                                                 <i class="fa fa-copyright"></i> Copyright 2009, Dan Vanderkam, <a href="http://dygraphs.com/legal.html" target="_blank">MIT License</a>
 547
 548                                                 <i class="fa fa-circle"></i> <a href="http://omnipotent.net/jquery.sparkline/" target="_blank">jQuery Sparklines</a> web chart library,
 549                                                 <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>
 550
 551                                                 <i class="fa fa-circle"></i> <a href="http://benpickles.github.io/peity/" target="_blank">Peity</a> web chart library,
 552                                                 <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>
 553
 554                                                 <i class="fa fa-circle"></i> <a href="https://rendro.github.io/easy-pie-chart/" target="_blank">Easy Pie Chart</a> web chart library,
 555                                                 <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>
 556
 557                                                 <i class="fa fa-circle"></i> <a href="http://bernii.github.io/gauge.js/" target="_blank">Gauge.js</a> web chart library,
 558                                                 <i class="fa fa-copyright"></i> Copyright, Bernard Kobos, <a href="http://bernii.github.io/gauge.js/" target="_blank">MIT License</a>
 559
 560                                                 <i class="fa fa-circle"></i> <a href="https://jquery.org/" target="_blank">jQuery</a>,
 561                                                 <i class="fa fa-copyright"></i> Copyright 2015, jQuery Foundation, <a href="https://jquery.org/license/" target="_blank">MIT License</a>
 562
 563                                                 <i class="fa fa-circle"></i> <a href="http://getbootstrap.com/getting-started/" target="_blank">Bootstrap</a>,
 564                                                 <i class="fa fa-copyright"></i> Copyright 2015, Twitter, <a href="http://getbootstrap.com/getting-started/#license-faqs" target="_blank">MIT License</a>
 565
 566                                                 <i class="fa fa-circle"></i> <a href="http://www.bootstraptoggle.com/" target="_blank">Bootstrap Toggle</a>,
 567                                                 <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>
 568
 569                                                 <i class="fa fa-circle"></i> <a href="https://jamesflorentino.github.io/nanoScrollerJS/" target="_blank">NanoScroller</a>,
 570                                                 <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>
 571
 572                                                 <i class="fa fa-circle"></i> <a href="https://github.com/marcj/css-element-queries" target="_blank">CSS Element Queries</a>,
 573                                                 <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>
 574
 575                                                 <i class="fa fa-circle"></i> <a href="https://fortawesome.github.io/Font-Awesome/" target="_blank">FontAwesome</a>,
 576                                                 <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>
 577
 578                                                 <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.
 579
 580                                                 <i class="fa fa-circle"></i> <a href="http://morrisjs.github.io/morris.js/" target="_blank">morris.js</a>,
 581                                                 <i class="fa fa-copyright"></i> Copyright 2013, Olly Smith, <a href="http://morrisjs.github.io/morris.js/" target="_blank">Simplified BSD License</a>
 582
 583                                                 <i class="fa fa-circle"></i> <a href="http://raphaeljs.com/" target="_blank">Raphaël</a>,
 584                                                 <i class="fa fa-copyright"></i> Copyright 2008, Dmitry Baranovskiy, <a href="http://raphaeljs.com/license.html" target="_blank">MIT License</a>
 585
 586                                                 <i class="fa fa-circle"></i> <a href="http://C3js.org/" target="_blank">C3</a>,
 587                                                 <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>
 588
 589                                                 <i class="fa fa-circle"></i> <a href="http://D3js.org/" target="_blank">D3</a>,
 590                                                 <i class="fa fa-copyright"></i> Copyright 2015, Mike Bostock, <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">BSD License</a>
 591
 592                                         </small>
 593                                 </div>
 594                         </div>
 595                 </div>
 596         </div>
 597
 598         <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
 599                 <div class="modal-dialog modal-lg" role="document">
 600                         <div class="modal-content">
 601                                 <div class="modal-header">
 602                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 603                                         <h4 class="modal-title" id="welcomeModalLabel">Welcome!</h4>
 604                                 </div>
 605                                 <div class="modal-body">
 606                                                 <div class="p">
 607                                                 <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.
 608                                                 </div>
 609                                                 <div class="p">
 610                                                 <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.
 611                                                 </div>
 612                                                 <div class="p">
 613                                                 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.
 614                                                 </div>
 615                                                 <div class="p">
 616                                                 <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>%),
 617                                                 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).
 618                                                 </div>
 619                                                 <div class="p">
 620                                                 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>!).
 621                                                 </div>
 622                                                 <div class="p">
 623                                                 For more information please refer to the <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata wiki</a></b>.
 624                                                 </div>
 625                                 </div>
 626                                 <div class="modal-footer">
 627                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 628                                 </div>
 629                         </div>
 630                 </div>
 631         </div>
 632
 633         <div class="modal fade" id="helpModal" tabindex="-1" role="dialog" aria-labelledby="helpModalLabel">
 634                 <div class="modal-dialog modal-lg" role="document">
 635                         <div class="modal-content">
 636                                 <div class="modal-header">
 637                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 638                                         <h4 class="modal-title" id="helpModalLabel">Dashboard Help</h4>
 639                                 </div>
 640                                 <div class="modal-body">
 641
 642                                         <h4>Dygraphs (line, area and stacked area charts)</h4>
 643
 644                                         <!-- Nav tabs -->
 645                                         <ul class="nav nav-tabs" role="tablist">
 646                                                 <li role="presentation" class="active"><a href="#help_mouse" aria-controls="help_mouse" role="tab" data-toggle="tab">Mouse Interface</a></li>
 647                                                 <li role="presentation"><a href="#help_touch" aria-controls="help_touch" role="tab" data-toggle="tab">Touch Interface</a></li>
 648                                         </ul>
 649
 650                                         <!-- Tab panes -->
 651                                         <div class="tab-content">
 652                                                 <div role="tabpanel" class="tab-pane active" id="help_mouse">
 653                                                         <div class="p">
 654                                                                 <h4>Mouse Over / Hover</h4>
 655                                                                 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).
 656                                                                 <br/>
 657                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 658                                                         </div>
 659                                                         <hr/>
 660                                                         <div class="p">
 661                                                                 <h4>Drag Chart Contents</h4>
 662                                                                 Drag the contents of a chart to pan it horizontally.
 663                                                                 <br/>
 664                                                                 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).
 665                                                                 <br/>
 666                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double click</b> a panned chart.
 667                                                         </div>
 668                                                         <hr/>
 669                                                         <div class="p">
 670                                                                 <h4>Double Click</h4>
 671                                                                 Double Click a chart to reset all the charts to their default auto-refreshing state.
 672                                                         </div>
 673                                                         <hr/>
 674                                                         <div class="p">
 675                                                                 <h4>SHIFT + Drag</h4>
 676                                                                 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:
 677                                                                 <ul>
 678                                                                         <li>The already loaded chart contents are zoomed (low resolution)</li>
 679                                                                         <li>New data are transferred from the netdata server, to refresh the chart with possibly more detail.</li>
 680                                                                 </ul>
 681                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 682                                                         </div>
 683                                                         <hr/>
 684                                                         <div class="p">
 685                                                                 <h4>SHIFT + Mouse Wheel <small>(does not work on firefox and IE/Edge)</small></h4>
 686                                                                 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.
 687                                                                 <br/>
 688                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 689                                                         </div>
 690                                                         <hr/>
 691                                                         <div class="p">
 692                                                                 <h4>Legend Operations</h4>
 693                                                                 Click on the label or value of a dimension, will select / un-select this dimension.
 694                                                                 <br/>
 695                                                                 You can press any of the SHIFT or CONTROL keys and then click on legend labels or values, to select / un-select multiple dimensions.
 696                                                         </div>
 697                                                 </div>
 698                                                 <div role="tabpanel" class="tab-pane" id="help_touch">
 699                                                         <div class="p">
 700                                                                 <h4>Single Tap</h4>
 701                                                                 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).
 702                                                                 <br/>
 703                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 704                                                         </div>
 705                                                         <hr/>
 706                                                         <div class="p">
 707                                                                 <h4>Drag Chart Contents</h4>
 708                                                                 Touch and Drag the contents of a chart to pan it horizontally.
 709                                                                 <br/>
 710                                                                 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).
 711                                                                 <br/>
 712                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double tap</b> a panned chart.
 713                                                         </div>
 714                                                         <hr/>
 715                                                         <div class="p">
 716                                                                 <h4>Double Tap</h4>
 717                                                                 Double tap a chart to reset all the charts to their default auto-refreshing state.
 718                                                         </div>
 719                                                         <hr/>
 720                                                         <div class="p">
 721                                                                 <h4>Zoom <small>(does not work on firefox and IE/Edge)</small></h4>
 722                                                                 With two fingers, zoom in or out.
 723                                                                 <br/>
 724                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 725                                                         </div>
 726                                                         <hr/>
 727                                                         <div class="p">
 728                                                                 <h4>Legend Operations</h4>
 729                                                                 Tap on the label or value of a dimension, will select / un-select this dimension.
 730                                                         </div>
 731                                                 </div>
 732                                         </div>
 733                                 </div>
 734                                 <div class="modal-footer">
 735                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 736                                 </div>
 737                         </div>
 738                 </div>
 739         </div>
 740
 741         <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
 742                 <div class="modal-dialog modal-lg" role="document">
 743                         <div class="modal-content">
 744                                 <div class="modal-header">
 745                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 746                                         <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
 747                                 </div>
 748                                 <div class="modal-body">
 749                                         <center>
 750                                                 <small style="color: #BBBBBB;">These are browser settings. Each viewer has its own. They do not affect the operation of your netdata server.
 751                                                 <br/>
 752                                                 Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
 753                                                 <br/>
 754                                                 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="resetDashboardOptions(); return false;">here</a>.</small>
 755                                         </center>
 756                                         <div style="padding: 10px;"></div>
 757
 758                                         <!-- Nav tabs -->
 759                                         <ul class="nav nav-tabs" role="tablist">
 760                                                 <li role="presentation" class="active"><a href="#settings_performance" aria-controls="settings_performance" role="tab" data-toggle="tab">Performance</a></li>
 761                                                 <li role="presentation"><a href="#settings_sync" aria-controls="settings_sync" role="tab" data-toggle="tab">Synchronization</a></li>
 762                                                 <li role="presentation"><a href="#settings_visual" aria-controls="settings_visual" role="tab" data-toggle="tab">Visual</a></li>
 763                                         </ul>
 764
 765                                         <!-- Tab panes -->
 766                                         <div class="tab-content">
 767                                                 <div role="tabpanel" class="tab-pane active" id="settings_performance">
 768                                                         <form id="optionsForm1" method="get" class="form-horizontal">
 769                                                                 <div class="form-group">
 770                                                                         <table>
 771                                                                         <tr class="option-row">
 772                                                                                 <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>
 773                                                                                 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
 774                                                                                         <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>
 775                                                                                 </td>
 776                                                                                 </tr>
 777                                                                         <tr class="option-row">
 778                                                                                 <td class="option-control">
 779                                                                                 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
 780                                                                                 </td>
 781                                                                                 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
 782                                                                                         <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>
 783                                                                                 </td>
 784                                                                                 </tr>
 785                                                                         <tr class="option-row">
 786                                                                                 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
 787                                                                                 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
 788                                                                                         <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>
 789                                                                                 </td>
 790                                                                                 </tr>
 791                                                                         </table>
 792                                                                 </div>
 793                                                         </form>
 794                                                 </div>
 795                                                 <div role="tabpanel" class="tab-pane" id="settings_sync">
 796                                                         <form id="optionsForm2" method="get" class="form-horizontal">
 797                                                                 <div class="form-group">
 798                                                                         <table>
 799                                                                         <tr class="option-row">
 800                                                                                 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequential" data-width="110px"></td>
 801                                                                                 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
 802                                                                                         <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>
 803                                                                                 </td>
 804                                                                                 </tr>
 805                                                                         <tr class="option-row" id="concurrent_refreshes_row">
 806                                                                                 <td class="option-control"></td>
 807                                                                                 <td class="option-info">
 808                                                                                         <table>
 809                                                                                         <tr class="option-row">
 810                                                                                         <td class="option-control">
 811                                                                                         <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
 812                                                                                         </td>
 813                                                                                         <td class="option-info">
 814                                                                                         <strong>Shall we re-sync chart refreshes?</strong><br/>
 815                                                                                         <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>
 816                                                                                         </td>
 817                                                                                         </tr>
 818                                                                                         </table>
 819                                                                                 </td>
 820                                                                                 </tr>
 821                                                                         <tr class="option-row">
 822                                                                                 <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>
 823                                                                                 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
 824                                                                                         <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>
 825                                                                                 </td>
 826                                                                                 </tr>
 827                                                                         <tr class="option-row">
 828                                                                                 <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>
 829                                                                                 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
 830                                                                                         <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>
 831                                                                                 </td>
 832                                                                                 </tr>
 833                                                                         </table>
 834                                                                 </div>
 835                                                         </form>
 836                                                 </div>
 837                                                 <div role="tabpanel" class="tab-pane" id="settings_visual">
 838                                                         <form id="optionsForm3" method="get" class="form-horizontal">
 839                                                                 <div class="form-group">
 840                                                                         <table>
 841                                                                         <tr class="option-row">
 842                                                                                 <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>
 843                                                                                 <td class="option-info"><strong>Which theme to use?</strong><br/>
 844                                                                                         <small>Netdata comes with two themes: <b>Dark</b> (the default) and <b>White</b>.
 845                                                                                         <br/>
 846                                                                                         <b>Switching this will reload the dashboard</b>.
 847                                                                                         </small>
 848                                                                                 </td>
 849                                                                                 </tr>
 850                                                                         <tr class="option-row">
 851                                                                                 <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>
 852                                                                                 <td class="option-info"><strong>Do you need help?</strong><br/>
 853                                                                                         <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.
 854                                                                                         <br/>
 855                                                                                         <b>Switching this will reload the dashboard</b>.
 856                                                                                         </small>
 857                                                                                 </td>
 858                                                                                 </tr>
 859                                                                         <tr class="option-row">
 860                                                                                 <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>
 861                                                                                 <td class="option-info"><strong>Enable data padding when panning and zooming?</strong><br/>
 862                                                                                         <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>
 863                                                                                 </td>
 864                                                                                 </tr>
 865                                                                         <tr class="option-row">
 866                                                                                 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle"  data-on="Smooth" data-off="Rough" data-width="110px"></td>
 867                                                                                 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
 868                                                                                         <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.
 869                                                                                         <br/>
 870                                                                                         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>
 871                                                                                 </td>
 872                                                                                 </tr>
 873                                                                         </table>
 874                                                                 </div>
 875                                                         </form>
 876                                                 </div>
 877                                         </div>
 878                                 </div>
 879                                 <div class="modal-footer">
 880                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 881                                 </div>
 882                         </div>
 883                 </div>
 884         </div>
 885
 886
 887         <div class="modal fade" id="updateModal" tabindex="-1" role="dialog" aria-labelledby="updateModalLabel">
 888                 <div class="modal-dialog" role="document">
 889                         <div class="modal-content">
 890                                 <div class="modal-header">
 891                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 892                                         <h4 class="modal-title" id="updateModalLabel">Update Check</h4>
 893                                 </div>
 894                                 <div class="modal-body">
 895                                         Your netdata version: <b><code><span id="netdataVersion">Unknown</span></code></b>
 896                                         <br/>
 897                                         <div style="padding: 10px;"></div>
 898                                         <div id="versionCheckLog">Not checked yet. Please press the Check Now button.</div>
 899                                 </div>
 900                                 <div class="modal-footer">
 901                                         <a href="#" onclick="notifyForUpdate(true); return false;" type="button" class="btn btn-default">Check Now</a>
 902                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 903                                 </div>
 904                         </div>
 905                 </div>
 906         </div>
 907
 908         <div class="modal fade" id="deleteRegistryModal" tabindex="-1" role="dialog" aria-labelledby="deleteRegistryModalLabel">
 909                 <div class="modal-dialog" role="document">
 910                         <div class="modal-content">
 911                                 <div class="modal-header">
 912                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 913                                         <h4 class="modal-title" id="deleteRegistryModalLabel">Delete <span id="deleteRegistryServerName"></span>?</h4>
 914                                 </div>
 915                                 <div class="modal-body">
 916                                         You are about to delete, from your personal list of netdata servers, the following server:
 917                                         <p style="text-align: center; padding-top: 10px; padding-bottom: 10px; line-height: 2;">
 918                                         <b><span id="deleteRegistryServerName2"></span></b>
 919                                         <br/>
 920                                         <b><span id="deleteRegistryServerURL"></span></b>
 921                                         </p>
 922                                         Are you sure you want to do this?
 923                                         <br/>
 924                                         <div style="padding: 10px;"></div>
 925                                         <small>Keep in mind, this server will be added back if and when you visit it again.</small>
 926                                         <br/>
 927                                         <div id="deleteRegistryResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 928                                 </div>
 929                                 <div class="modal-footer">
 930                                         <button type="button" class="btn btn-success" data-dismiss="modal">keep it</button>
 931                                         <a href="#" onclick="notifyForDeleteRegistry(true); return false;" type="button" class="btn btn-danger">delete it</a>
 932                                 </div>
 933                         </div>
 934                 </div>
 935         </div>
 936
 937         <div class="modal fade" id="switchRegistryModal" tabindex="-1" role="dialog" aria-labelledby="switchRegistryModalLabel">
 938                 <div class="modal-dialog" role="document">
 939                         <div class="modal-content">
 940                                 <div class="modal-header">
 941                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 942                                         <h4 class="modal-title" id="switchRegistryModalLabel">Switch Netdata Registry Identity</h4>
 943                                 </div>
 944                                 <div class="modal-body">
 945                                         You can copy and paste the following ID to all your browsers (e.g. work and home).
 946                                         <br/>
 947                                         All the browsers with the same ID will identify <b>you</b>, so please don't share this with others.
 948                                         <p style="text-align: center; padding-top: 10px; padding-bottom: 10px; line-height: 2;">
 949                                         <form action="#">
 950                                         <input type="text" class="form-control" id="switchRegistryPersonGUID" placeholder="your personal ID" maxlength="36" autocomplete="off" style="text-align: center; font-size: 1.4em;">
 951                                         </form>
 952                                         </p>
 953                                         Either copy this ID and paste it to another browser, or paste here the ID you have taken from another browser.
 954                                         <p style="padding-top: 10px;"><small>
 955                                                 Keep in mind that:
 956                                                 <ul>
 957                                                         <li>when you switch ID, your previous ID will be lost forever - this is irreversible.</li>
 958                                                         <li>both IDs (your old and the new) must list this netdata at their personal lists.</li>
 959                                                         <li>both IDs have to be known by the registry: <b><span id="switchRegistryURL"></span></b>.</li>
 960                                                         <li>to get a new ID, just clear your browser cookies.</li>
 961                                                 </ul>
 962                                         </small></p>
 963                                         <div id="switchRegistryResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 964                                 </div>
 965                                 <div class="modal-footer">
 966                                         <button type="button" class="btn btn-success" data-dismiss="modal">cancel</button>
 967                                         <a href="#" onclick="notifyForSwitchRegistry(true); return false;" type="button" class="btn btn-danger">impersonate</a>
 968                                 </div>
 969                         </div>
 970                 </div>
 971         </div>
 972
 973         <div class="modal fade" id="gotoServerModal" tabindex="-1" role="dialog" aria-labelledby="gotoServerModalLabel">
 974                 <div class="modal-dialog" role="document">
 975                         <div class="modal-content">
 976                                 <div class="modal-header">
 977                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 978                                         <h4 class="modal-title" id="gotoServerModalLabel"><span id="gotoServerName"></span></h4>
 979                                 </div>
 980                                 <div class="modal-body">
 981                                         Checking known URLs for this server...
 982                                         <div  style="padding-top: 20px;">
 983                                                 <table id="gotoServerList">
 984                                                 </table>
 985                                         </div>
 986                                         <p style="padding-top: 10px;"><small>
 987                                                 Checks may fail if you are viewing an HTTPS page and the server to be checked is HTTP only.
 988                                         </small></p>
 989                                         <div id="gotoServerResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 990                                 </div>
 991                                 <div class="modal-footer">
 992                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 993                                 </div>
 994                         </div>
 995                 </div>
 996         </div>
 997
 998 <script>
 999 var this_is_demo = null;
1000 function isdemo() {
1001         if(this_is_demo !== null) return this_is_demo;
1002         this_is_demo = false;
1003
1004         try {
1005                 if(typeof document.location.hostname === 'string') {
1006                         if(document.location.hostname.endsWith('.my-netdata.io') ||
1007                                         document.location.hostname.endsWith('.mynetdata.io') ||
1008                                         document.location.hostname.endsWith('.netdata.rocks') ||
1009                                         document.location.hostname.endsWith('.firehol.org') ||
1010                                         document.location.hostname.endsWith('.netdata.online'))
1011                                         this_is_demo = true;
1012                 }
1013         }
1014         catch(error) {
1015                 ;
1016         }
1017
1018         return this_is_demo;
1019 }
1020
1021 if(isdemo()) {
1022         document.getElementById('masthead').style.display = 'block';
1023 }
1024 var gotoServerValidateRemaining = 0;
1025 var gotoServerMiddleClick = false;
1026 var gotoServerStop = false;
1027 function gotoServerValidateUrl(id, guid, url) {
1028         var penaldy = 0;
1029         if(document.location.toString().startsWith('http://') && url.toString().startsWith('https://'))
1030                         // we penalize https only if the current url is http
1031                         // to allow the user walk through all its servers.
1032                         penaldy = 500;
1033
1034         setTimeout(function() {
1035                 document.getElementById('gotoServerList').innerHTML += '<tr><td style="padding-left: 20px;"><a href="' + url + '" target="_blank">' + url + '</a></td><td style="padding-left: 30px;"><code id="' + guid + '-' + id + '-status">checking...</code></td></tr>';
1036
1037                 NETDATA.registry.hello(url, function(data) {
1038                         if (data) {
1039                                 // console.log('OK ' + id + ' URL: ' + url);
1040                                 document.getElementById(guid + '-' + id + '-status').innerHTML = "OK";
1041                                 var hash = document.location.hash || '';
1042
1043                                 if(!gotoServerStop) {
1044                                         gotoServerStop = true;
1045
1046                                         if(gotoServerMiddleClick) {
1047                                                 window.open(url + hash, '_blank');
1048                                                 gotoServerMiddleClick = false;
1049                                                 document.getElementById('gotoServerResponse').innerHTML = '<b>Opening new window to ' + NETDATA.registry.machines[guid].name + '<br/><a href="' + url + hash + '">' + url + hash + '</a></b><br/>(check your pop-up blocker if it fails)';
1050                                         }
1051                                         else
1052                                                 document.location = url + hash;
1053                                 }
1054                         }
1055                         else {
1056                                 document.getElementById(guid + '-' + id + '-status').innerHTML = "failed!";
1057                                 gotoServerValidateRemaining--;
1058                                 if(gotoServerValidateRemaining <= 0) {
1059                                         gotoServerMiddleClick = false;
1060                                         document.getElementById('gotoServerResponse').innerHTML = '<b>Sorry! I cannot find any operational URL for this server</b>';
1061                                 }
1062                         }
1063                 });
1064         }, (id * 50) + penaldy);
1065 }
1066
1067 function gotoServerModalHandler(guid) {
1068         // console.log('goto server: ' + guid);
1069
1070         gotoServerStop = false;
1071         var len = NETDATA.registry.machines[guid].alternate_urls.length;
1072
1073         document.getElementById('gotoServerResponse').innerHTML = '';
1074         document.getElementById('gotoServerList').innerHTML = '';
1075         document.getElementById('gotoServerName').innerHTML = NETDATA.registry.machines[guid].name;
1076         $('#gotoServerModal').modal('show');
1077
1078         gotoServerValidateRemaining = len;
1079         while(len--)
1080                 gotoServerValidateUrl(len, guid, NETDATA.registry.machines[guid].alternate_urls[len]);
1081
1082         return false;
1083 }
1084
1085 function gotoServerInit() {
1086         $(".registry_link").on('click', function(e) {
1087                 if(e.which === 2) {
1088                         e.preventDefault();
1089                         gotoServerMiddleClick = true;
1090                 }
1091                 else {
1092                         gotoServerMiddleClick = false;
1093                 }
1094
1095                 return true;
1096         });
1097 }
1098
1099 function switchRegistryModalHandler() {
1100         document.getElementById('switchRegistryPersonGUID').value = NETDATA.registry.person_guid;
1101         document.getElementById('switchRegistryURL').innerHTML = NETDATA.registry.server;
1102         document.getElementById('switchRegistryResponse').innerHTML = '';
1103         $('#switchRegistryModal').modal('show');
1104 }
1105
1106 function notifyForSwitchRegistry() {
1107         var n = document.getElementById('switchRegistryPersonGUID').value;
1108
1109         if(n !== '' && n.length === 36) {
1110                 NETDATA.registry.switch(n, function(result) {
1111                         if(result !== null) {
1112                                 $('#switchRegistryModal').modal('hide');
1113                                 NETDATA.registry.init();
1114                         }
1115                         else {
1116                                 document.getElementById('switchRegistryResponse').innerHTML = "<b>Sorry! The registry rejected your request.</b>";
1117                         }
1118                 });
1119         }
1120         else
1121                 document.getElementById('switchRegistryResponse').innerHTML = "<b>The ID you have entered is not a GUID.</b>";
1122 }
1123
1124 var deleteRegistryUrl = null;
1125 function deleteRegistryModalHandler(guid, name, url) {
1126         deleteRegistryUrl = url;
1127         document.getElementById('deleteRegistryServerName').innerHTML = name;
1128         document.getElementById('deleteRegistryServerName2').innerHTML = name;
1129         document.getElementById('deleteRegistryServerURL').innerHTML = url;
1130         document.getElementById('deleteRegistryResponse').innerHTML = '';
1131         $('#deleteRegistryModal').modal('show');
1132 }
1133
1134 function notifyForDeleteRegistry() {
1135         if(deleteRegistryUrl) {
1136                 NETDATA.registry.delete(deleteRegistryUrl, function(result) {
1137                         if(result !== null) {
1138                                 deleteRegistryUrl = null;
1139                                 $('#deleteRegistryModal').modal('hide');
1140                                 NETDATA.registry.init();
1141                         }
1142                         else {
1143                                 document.getElementById('deleteRegistryResponse').innerHTML = "<b>Sorry! this command was rejected by the registry server.</b>";
1144                         }
1145                 });
1146         }
1147 }
1148
1149 var options = {
1150         sparklines_registry: {},
1151         submenu_names: {},
1152         data: null,
1153         hostname: 'netdata_server', // will be overwritten by the netdata server
1154         categories: new Array(),
1155         categories_idx: {},
1156         families: new Array(),
1157         families_idx: {},
1158
1159         chartsPerRow: 0,
1160         chartsMinWidth: 1450,
1161         chartsHeight: 180,
1162         sparklinesHeight: 60,
1163 };
1164
1165 // generate a sparkline
1166 // used in the documentation
1167 function sparkline(chart, dimension, units) {
1168         var key = chart + '.' + dimension;
1169
1170         if(typeof units === 'undefined')
1171                 units = '';
1172
1173         if(typeof options.sparklines_registry[key] === 'undefined')
1174                 options.sparklines_registry[key] = { count: 1 };
1175         else
1176                 options.sparklines_registry[key].count++;
1177
1178         key = key + '.' + options.sparklines_registry[key].count;
1179
1180         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 + ')';
1181
1182         return h;
1183 }
1184
1185 function chartsPerRow(total) {
1186         if(options.chartsPerRow === 0) {
1187                 width = Math.floor(total / options.chartsMinWidth);
1188                 if(width === 0) width = 1;
1189                 return width;
1190         }
1191         else return options.chartsPerRow;
1192 }
1193
1194 function prioritySort(a, b) {
1195         if(a.priority < b.priority) return -1;
1196         if(a.priority > b.priority) return 1;
1197         if(a.name < b.name) return -1;
1198         return 1;
1199 }
1200
1201 function sortObjectByPriority(object) {
1202         var idx = {};
1203         var sorted = new Array();
1204
1205         for(var i in object) {
1206                 if(typeof idx[i] === 'undefined') {
1207                         idx[i] = object[i];
1208                         sorted.push(i);
1209                 }
1210         }
1211
1212         sorted.sort(function(a, b) {
1213                 if(idx[a].priority < idx[b].priority) return -1;
1214                 if(idx[a].priority > idx[b].priority) return 1;
1215                 if(a < b) return -1;
1216                 return 1;
1217         });
1218
1219         return sorted;
1220 }
1221
1222
1223 // ----------------------------------------------------------------------------
1224 // scroll to a section, without changing the browser history
1225
1226 function scrollToId(hash) {
1227         if(hash && hash != '') {
1228                 var offset = $('#' + hash).offset();
1229                 if(typeof offset !== 'undefined')
1230                         $('html, body').animate({ scrollTop: offset.top }, 0);
1231         }
1232
1233         // we must return false to prevent the default action
1234         return false;
1235 }
1236
1237 // ----------------------------------------------------------------------------
1238
1239 function gaugeChart(title, width, dimensions, colors) {
1240         if(typeof colors === 'undefined')
1241                 colors = '';
1242
1243         if(typeof dimensions === 'undefined')
1244                 dimensions = '';
1245
1246         return '<div data-netdata="CHART_UNIQUE_ID"'
1247                                                         + ' data-dimensions="' + dimensions + '"'
1248                                                         + ' data-chart-library="gauge"'
1249                                                         + ' data-gauge-adjust="width"'
1250                                                         + ' data-title="' + title + '"'
1251                                                         + ' data-width="' + width + '"'
1252                                                         + ' data-before="0"'
1253                                                         + ' data-after="-CHART_DURATION"'
1254                                                         + ' data-points="CHART_DURATION"'
1255                                                         + ' data-colors="' + colors + '"'
1256                                                         + ' role="application"></div>';
1257 }
1258
1259 // ----------------------------------------------------------------------------
1260
1261 var menuData = {
1262         'system': {
1263                 title: 'System Overview',
1264                 info: 'Overview of the key system metrics.'
1265         },
1266
1267         'ap': {
1268                 title: 'Access Points',
1269                 info: undefined
1270         },
1271
1272         'tc': {
1273                 title: 'Quality of Service',
1274                 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).'
1275         },
1276
1277         'net': {
1278                 title: 'Network Interfaces',
1279                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
1280         },
1281
1282         'ipv4': {
1283                 title: 'IPv4 Networking',
1284                 info: undefined
1285         },
1286
1287         'ipv6': {
1288                 title: 'IPv6 Networking',
1289                 info: undefined
1290         },
1291
1292         'ipvs': {
1293                 title: 'IP Virtual Server',
1294                 info: undefined
1295         },
1296
1297         'netfilter': {
1298                 title: 'Firewall (netfilter)',
1299                 info: undefined
1300         },
1301
1302         'cpu': {
1303                 title: 'CPUs',
1304                 info: undefined
1305         },
1306
1307         'mem': {
1308                 title: 'Memory',
1309                 info: undefined
1310         },
1311
1312         'disk': {
1313                 title: 'Disks',
1314                 info: 'Charts with performance information for all the system disks. Special care has been given to present disk performance metrics in a way compatible with <code>iostat -x</code>. netdata by default prevents rendering performance charts for individual partitions and unmounted virtual disks. Disabled charts can still be enabled by altering the relative settings in the netdata configuration file.'
1315         },
1316
1317         'sensors': {
1318                 title: 'Sensors',
1319                 info: undefined
1320         },
1321
1322         'nfsd': {
1323                 title: 'File Server (nfsd)',
1324                 info: undefined
1325         },
1326
1327         'apps': {
1328                 title: 'Applications',
1329                 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). The reported values are compatible with <code>top</code>, although the netdata plugin counts also the resources of exited children (unlike <code>top</code> which shows only the resources of the currently running processes). So for processes like shell scripts, the reported values include the resources used by the commands these scripts run within each timeframe.',
1330                 height: 1.5
1331         },
1332
1333         'users': {
1334                 title: 'Users',
1335                 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. The reported values are compatible with <code>top</code>, although the netdata plugin counts also the resources of exited children (unlike <code>top</code> which shows only the resources of the currently running processes). So for processes like shell scripts, the reported values include the resources used by the commands these scripts run within each timeframe.',
1336                 height: 1.5
1337         },
1338
1339         'groups': {
1340                 title: 'User Groups',
1341                 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. The reported values are compatible with <code>top</code>, although the netdata plugin counts also the resources of exited children (unlike <code>top</code> which shows only the resources of the currently running processes). So for processes like shell scripts, the reported values include the resources used by the commands these scripts run within each timeframe.',
1342                 height: 1.5
1343         },
1344
1345         'netdata': {
1346                 title: 'Netdata Monitoring',
1347                 info: undefined
1348         },
1349
1350         'example': {
1351                 title: 'Example Charts',
1352                 info: undefined
1353         },
1354
1355         'cgroup': {
1356                 title: 'Container',
1357                 info: undefined
1358         },
1359
1360         'mysql': {
1361                 title: 'MySQL',
1362                 info: undefined
1363         },
1364
1365         'redis': {
1366                 title: 'Redis',
1367                 info: undefined
1368         },
1369
1370         'phpfpm': {
1371                 title: 'PHP-FPM',
1372                 info: undefined,
1373         },
1374
1375         'nginx': {
1376                 title: 'nginx',
1377                 info: undefined,
1378         },
1379
1380         'apache': {
1381                 title: 'Apache',
1382                 info: undefined,
1383         },
1384
1385         'named': {
1386                 title: 'named',
1387                 info: undefined
1388         }
1389 };
1390
1391 var submenuData = {
1392         'mem.ksm': {
1393                 title: 'Memory Deduper',
1394                 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.'
1395         },
1396
1397         'netfilter.conntrack': {
1398                 title: 'Connection Tracker',
1399                 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.'
1400         },
1401
1402         'netfilter.nfacct': {
1403                 title: 'Bandwidth Accounting',
1404                 info: 'The following information is read using the <code>nfacct.plugin</code>.'
1405         },
1406
1407         'netfilter.synproxy': {
1408                 title: 'DDoS Protection',
1409                 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.'
1410         }
1411 };
1412
1413 //
1414 // chartData works on the context of a chart
1415 // Its purpose is to set:
1416 //
1417 // info: the text above the charts
1418 // heads: the representation of the chart at the top the subsection (second level menu)
1419 // mainheads: the representation of the chart at the top of the section (first level menu)
1420 // colors: the dimension colors of the chart (the default colors are appended)
1421 // height: the ratio of the chart height relative to the default
1422 //
1423 var chartData = {
1424         'system.cpu': {
1425                 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.'
1426         },
1427
1428         'system.load': {
1429                 info: 'Current system load read from <code>/proc/loadavg</code>.',
1430                 height: 0.7
1431         },
1432
1433         'system.io': {
1434                 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.'
1435         },
1436
1437         'system.swapio': {
1438                 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).'
1439         },
1440
1441         'system.pgfaults': {
1442                 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.'
1443         },
1444
1445         'system.entropy': {
1446                 colors: '#CC22AA',
1447                 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.'
1448         },
1449
1450         'system.forks': {
1451                 colors: '#5555DD',
1452                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
1453         },
1454
1455         'system.intr': {
1456                 colors: '#DD5555',
1457                 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.'
1458         },
1459
1460         'system.interrupts': {
1461                 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.'
1462         },
1463
1464         'system.softirqs': {
1465                 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.'
1466         },
1467
1468         'system.processes': {
1469                 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.'
1470         },
1471
1472         'system.active_processes': {
1473                 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
1474         },
1475
1476         'system.ctxt': {
1477                 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.'
1478         },
1479
1480         'system.idlejitter': {
1481                 colors: '#5555AA',
1482                 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).'
1483         },
1484
1485         'system.ipv4': {
1486                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>.'
1487         },
1488
1489         'system.ipv6': {
1490                 info: 'Total IPv6 Traffic, read from <code>/proc/net/snmp6</code>.'
1491         },
1492
1493         'system.ram': {
1494                 info: 'System memory, read from <code>/proc/meminfo</code>.'
1495         },
1496
1497         'system.swap': {
1498                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
1499         },
1500
1501         // ------------------------------------------------------------------------
1502         // MEMORY
1503
1504         'mem.ksm_savings': {
1505                 heads: [
1506                         gaugeChart('Saved', '12%', 'savings', '#0099CC')
1507                 ]
1508         },
1509
1510         'mem.ksm_ratios': {
1511                 heads: [
1512                         function(id) {
1513                                 return  '<div data-netdata="' + id + '"'
1514                                         + ' data-gauge-max-value="100"'
1515                                         + ' data-chart-library="gauge"'
1516                                         + ' data-title="Savings"'
1517                                         + ' data-units="percentage %"'
1518                                         + ' data-gauge-adjust="width"'
1519                                         + ' data-width="12%"'
1520                                         + ' data-before="0"'
1521                                         + ' data-after="-CHART_DURATION"'
1522                                         + ' data-points="CHART_DURATION"'
1523                                         + ' role="application"></div>';
1524                         }
1525                 ]
1526         },
1527
1528         'mem.committed': {
1529                 colors: NETDATA.colors[3]
1530         },
1531
1532         // ------------------------------------------------------------------------
1533         // APPS
1534
1535         'apps.cpu': {
1536                 height: 2.0
1537         },
1538
1539         'apps.preads': {
1540                 height: 2.0
1541         },
1542
1543         'apps.pwrites': {
1544                 height: 2.0
1545         },
1546
1547         // ------------------------------------------------------------------------
1548         // USERS
1549
1550         'users.cpu': {
1551                 height: 2.0
1552         },
1553
1554         'users.preads': {
1555                 height: 2.0
1556         },
1557
1558         'users.pwrites': {
1559                 height: 2.0
1560         },
1561
1562         // ------------------------------------------------------------------------
1563         // GROUPS
1564
1565         'groups.cpu': {
1566                 height: 2.0
1567         },
1568
1569         'groups.preads': {
1570                 height: 2.0
1571         },
1572
1573         'groups.pwrites': {
1574                 height: 2.0
1575         },
1576
1577         // ------------------------------------------------------------------------
1578         // NETWORK QoS
1579
1580         'tc.qos': {
1581                 heads: [
1582                         function(id) {
1583                                 if(id.match(/.*-ifb$/))
1584                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
1585                                 else
1586                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
1587                         }
1588                 ]
1589         },
1590
1591         // ------------------------------------------------------------------------
1592         // NETWORK INTERFACES
1593
1594         'net.net': {
1595                 heads: [
1596                         gaugeChart('Received', '12%', 'received'),
1597                         gaugeChart('Sent', '12%', 'sent')
1598                 ]
1599         },
1600
1601         // ------------------------------------------------------------------------
1602         // NETFILTER
1603
1604         'netfilter.sockets': {
1605                 colors: '#88AA00',
1606                 heads: [
1607                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1608                 ]
1609         },
1610
1611         'netfilter.new': {
1612                 heads: [
1613                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1614                 ]
1615         },
1616
1617         // ------------------------------------------------------------------------
1618         // DISKS
1619
1620         'disk.util': {
1621                 colors: '#FF5588',
1622                 heads: [
1623                         gaugeChart('Utilization', '12%', '', '#FF5588')
1624                 ],
1625                 info: 'Disk Utilization measures the amount of time the disk was busy with something. This is not related to its performance. 100% means that the Linux kernel always had an outstanding operation on the disk. Keep in mind that depending on the underlying technology of the disk, 100% here may or may not be an indication of congestion.'
1626         },
1627
1628         'disk.backlog': {
1629                 colors: '#0099CC',
1630                 info: 'Backlog is an indication of the duration of pending disk operations. On every I/O event the Linux kernel is multiplying the time spent doing I/O since the last update of this field with the number of pending operations. While not accurate, this metric can provide an indication of the expected completion time of the operations in progress.'
1631         },
1632
1633         'disk.io': {
1634                 heads: [
1635                         gaugeChart('Read', '12%', 'reads'),
1636                         gaugeChart('Write', '12%', 'writes')
1637                 ],
1638                 info: 'Amount of data transferred to and from disk.'
1639         },
1640
1641         'disk.ops': {
1642                 info: 'Completed disk I/O operations. Keep in mind the number of operations requested might be higher, since the Linux kernel is able to merge adjacent to each other (see merged operations chart).'
1643         },
1644
1645         'disk.qops': {
1646                 info: 'I/O operations currently in progress. This metric is a snapshot - it is not an average over the last interval.'
1647         },
1648
1649         'disk.iotime': {
1650                 height: 0.5,
1651                 info: 'The sum of the duration of all completed I/O operations. This number can exceed the interval if the disk is able to execute I/O operations in parallel.'
1652         },
1653         'disk.mops': {
1654                 height: 0.5,
1655                 info: 'The number of merged disk operations. The Linux kernel is able to merge adjacent I/O operations, for example two 4KB reads can become one 8KB read before given to disk.'
1656         },
1657         'disk.svctm': {
1658                 height: 0.5,
1659                 info: 'The average service time for completed I/O operations. This metric is calculated using the total busy time of the disk and the number of completed operations. If the disk is able to execute multiple parallel operations the reporting average service time will be misleading.'
1660         },
1661         'disk.avgsz': {
1662                 height: 0.5,
1663                 info: 'The average I/O operation size.'
1664         },
1665         'disk.await': {
1666                 height: 0.5,
1667                 info: 'The average time for I/O requests issued to the device to be served. This includes the time spent by the requests in queue and the time spent servicing them.'
1668         },
1669
1670         'disk.space': {
1671                 info: 'Disk space utilization. reserved for root is automatically reserved by the system to prevent the root user from getting out of space.'
1672         },
1673         'disk.inodes': {
1674                 info: 'inodes (or index nodes) are filesystem objects (e.g. files and directories). On many types of file system implementations, the maximum number of inodes is fixed at filesystem creation, limiting the maximum number of files the filesystem can hold. It is possible for a device to run out of inodes. When this happens, new files cannot be created on the device, even though there may be free space available.'
1675         },
1676
1677         'mysql.net': {
1678                 info: 'The amount of data sent to mysql clients (<strong>out</strong>) and received from mysql clients (<strong>in</strong>).'
1679         },
1680
1681         // ------------------------------------------------------------------------
1682         // MYSQL
1683
1684         'mysql.queries': {
1685                 info: 'The number of statements executed by the server.<ul>' +
1686                 '<li><strong>queries</strong> counts the statements executed within stored SQL programs.</li>' +
1687                 '<li><strong>questions</strong> counts the statements sent to the mysql server by mysql clients.</li>' +
1688                 '<li><strong>slow queries</strong> counts the number of statements that took more than <a href="http://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_long_query_time" target="_blank">long_query_time</a> seconds to be executed.' +
1689                 ' For more information about slow queries check the mysql <a href="http://dev.mysql.com/doc/refman/5.7/en/slow-query-log.html" target="_blank">slow query log</a>.</li>' +
1690                 '</ul>'
1691         },
1692
1693         'mysql.handlers': {
1694                 info: 'Usage of the internal handlers of mysql. This chart provides very good insights of what the mysql server is actually doing.' +
1695                 ' (if the chart is not showing all these dimensions it is because they are zero - set <strong>Which dimensions to show?</strong> to <strong>All</strong> from the dashboard settings, to render even the zero values)<ul>' +
1696                 '<li><strong>commit</strong>, the number of internal <a href="http://dev.mysql.com/doc/refman/5.7/en/commit.html" target="_blank">COMMIT</a> statements.</li>' +
1697                 '<li><strong>delete</strong>, the number of times that rows have been deleted from tables.</li>' +
1698                 '<li><strong>prepare</strong>, a counter for the prepare phase of two-phase commit operations.</li>' +
1699                 '<li><strong>read first</strong>, the number of times the first entry in an index was read. A high value suggests that the server is doing a lot of full index scans; e.g. <strong>SELECT col1 FROM foo</strong>, with col1 indexed.</li>' +
1700                 '<li><strong>read key</strong>, the number of requests to read a row based on a key. If this value is high, it is a good indication that your tables are properly indexed for your queries.</li>' +
1701                 '<li><strong>read next</strong>, the number of requests to read the next row in key order. This value is incremented if you are querying an index column with a range constraint or if you are doing an index scan.</li>' +
1702                 '<li><strong>read prev</strong>, the number of requests to read the previous row in key order. This read method is mainly used to optimize <strong>ORDER BY ... DESC</strong>.</li>' +
1703                 '<li><strong>read rnd</strong>, the number of requests to read a row based on a fixed position. A high value indicates you are doing a lot of queries that require sorting of the result. You probably have a lot of queries that require MySQL to scan entire tables or you have joins that do not use keys properly.</li>' +
1704                 '<li><strong>read rnd next</strong>, the number of requests to read the next row in the data file. This value is high if you are doing a lot of table scans. Generally this suggests that your tables are not properly indexed or that your queries are not written to take advantage of the indexes you have.</li>' +
1705                 '<li><strong>rollback</strong>, the number of requests for a storage engine to perform a rollback operation.</li>' +
1706                 '<li><strong>savepoint</strong>, the number of requests for a storage engine to place a savepoint.</li>' +
1707                 '<li><strong>savepoint rollback</strong>, the number of requests for a storage engine to roll back to a savepoint.</li>' +
1708                 '<li><strong>update</strong>, the number of requests to update a row in a table.</li>' +
1709                 '<li><strong>write</strong>, the number of requests to insert a row in a table.</li>' +
1710                 '</ul>'
1711         },
1712
1713         'mysql.table_locks': {
1714                 info: 'MySQL table locks counters: <ul>' +
1715                 '<li><strong>immediate</strong>, the number of times that a request for a table lock could be granted immediately.</li>' +
1716                 '<li><strong>waited</strong>, the number of times that a request for a table lock could not be granted immediately and a wait was needed. If this is high and you have performance problems, you should first optimize your queries, and then either split your table or tables or use replication.</li>' +
1717                 '</ul>'
1718         },
1719
1720         // ------------------------------------------------------------------------
1721         // APACHE
1722
1723         'apache.connections': {
1724                 colors: NETDATA.colors[4],
1725                 mainheads: [
1726                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1727                 ]
1728         },
1729
1730         'apache.requests': {
1731                 colors: NETDATA.colors[0],
1732                 mainheads: [
1733                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1734                 ]
1735         },
1736
1737         'apache.net': {
1738                 colors: NETDATA.colors[3],
1739                 mainheads: [
1740                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1741                 ]
1742         },
1743
1744         'apache.workers': {
1745                 mainheads: [
1746                         function(id) {
1747                                 return  '<div data-netdata="' + id + '"'
1748                                         + ' data-dimensions="busy"'
1749                                         + ' data-append-options="percentage"'
1750                                         + ' data-gauge-max-value="100"'
1751                                         + ' data-chart-library="gauge"'
1752                                         + ' data-title="Workers Utilization"'
1753                                         + ' data-units="percentage %"'
1754                                         + ' data-gauge-adjust="width"'
1755                                         + ' data-width="12%"'
1756                                         + ' data-before="0"'
1757                                         + ' data-after="-CHART_DURATION"'
1758                                         + ' data-points="CHART_DURATION"'
1759                                         + ' role="application"></div>';
1760                         }
1761                 ]
1762         },
1763
1764         'apache.bytesperreq': {
1765                 colors: NETDATA.colors[3],
1766                 height: 0.5
1767         },
1768
1769         'apache.reqpersec': {
1770                 colors: NETDATA.colors[4],
1771                 height: 0.5
1772         },
1773
1774         'apache.bytespersec': {
1775                 colors: NETDATA.colors[6],
1776                 height: 0.5
1777         },
1778
1779
1780         // ------------------------------------------------------------------------
1781         // NGINX
1782
1783         'nginx.connections': {
1784                 colors: NETDATA.colors[4],
1785                 mainheads: [
1786                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1787                 ]
1788         },
1789
1790         'nginx.requests': {
1791                 colors: NETDATA.colors[0],
1792                 mainheads: [
1793                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1794                 ]
1795         }
1796 };
1797
1798 function anyAttribute(obj, attr, key, def) {
1799         if(typeof obj[key] !== 'undefined') {
1800                 if(typeof obj[key][attr] !== 'undefined')
1801                         return obj[key][attr];
1802         }
1803         return def;
1804 }
1805
1806 function menuTitle(chart) {
1807         if(typeof chart.menu_pattern !== 'undefined') {
1808                 return anyAttribute(menuData, 'title', chart.menu_pattern, chart.menu_pattern).toString()
1809                                 + ': ' + chart.type.slice(-(chart.type.length - chart.menu_pattern.length - 1)).toString();
1810         }
1811
1812         return anyAttribute(menuData, 'title', chart.menu, chart.menu);
1813 }
1814
1815 function menuInfo(menu) {
1816         return anyAttribute(menuData, 'info', menu, null);
1817 }
1818
1819 function menuHeight(menu, relative) {
1820         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1821 }
1822
1823 function submenuTitle(menu, submenu) {
1824         var key = menu + '.' + submenu;
1825         return anyAttribute(submenuData, 'title', key, submenu);
1826 }
1827
1828 function submenuInfo(menu, submenu) {
1829         var key = menu + '.' + submenu;
1830         return anyAttribute(submenuData, 'info', key, null);
1831 }
1832
1833 function submenuHeight(menu, submenu, relative) {
1834         var key = menu + '.' + submenu;
1835         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1836 }
1837
1838
1839 function chartInfo(id) {
1840         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1841                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1842         else
1843                 return '';
1844 }
1845
1846 function chartHeight(id, def) {
1847         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1848                 return def * chartData[id].height;
1849         else
1850                 return def;
1851 }
1852
1853
1854 // ----------------------------------------------------------------------------
1855
1856 // enrich the data structure returned by netdata
1857 // to reflect our menu system and content
1858 function enrichChartData(chart) {
1859         var tmp = chart.type.split('_')[0];
1860
1861         switch(tmp) {
1862                 case 'ap':
1863                 case 'net':
1864                 case 'disk':
1865                         chart.menu = tmp;
1866                         break;
1867
1868                 case 'apache':
1869                 case 'cgroup':
1870                 case 'exim':
1871                 case 'mysql':
1872                 case 'named':
1873                 case 'nginx':
1874                 case 'phpfpm':
1875                 case 'postfix':
1876                 case 'redis':
1877                 case 'squid':
1878                 case 'snmp':
1879                 case 'tomcat':
1880                         chart.menu = chart.type;
1881                         chart.menu_pattern = tmp;
1882                         break;
1883
1884                 case 'tc':
1885                         chart.menu = tmp;
1886
1887                         // find a name for this device from fireqos info
1888                         // we strip '_(in|out)' or '(in|out)_'
1889                         if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family) {
1890                                 var n = chart.name.split('.')[1];
1891                                 if(n.endsWith('_in'))
1892                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_in'));
1893                                 else if(n.endsWith('_out'))
1894                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_out'));
1895                                 else if(n.startsWith('in_'))
1896                                         options.submenu_names[chart.family] = n.slice(3, n.length);
1897                                 else if(n.startsWith('out_'))
1898                                         options.submenu_names[chart.family] = n.slice(4, n.length);
1899                         }
1900
1901                         // increase the priority of IFB devices
1902                         // to have inbound appear before outbound
1903                         if(chart.id.match(/.*-ifb$/))
1904                                 chart.priority--;
1905
1906                         break;
1907
1908                 default:
1909                         chart.menu = chart.type;
1910                         break;
1911         }
1912
1913         chart.submenu = chart.family;
1914 }
1915
1916 // ----------------------------------------------------------------------------
1917
1918 function name2id(s) {
1919         return s
1920                 .replace(/ /g, '_')
1921                 .replace(/\(/g, '_')
1922                 .replace(/\)/g, '_')
1923                 .replace(/\./g, '_')
1924                 .replace(/\//g, '_');
1925 }
1926
1927 function headMain(charts, duration) {
1928         var head = '';
1929
1930         if(typeof charts['system.swap'] !== 'undefined')
1931                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1932                 + ' data-dimensions="free"'
1933                 + ' data-append-options="percentage"'
1934                 + ' data-chart-library="easypiechart"'
1935                 + ' data-title="Free Swap"'
1936                 + ' data-units="%"'
1937                 + ' data-easypiechart-max-value="100"'
1938                 + ' data-width="8%"'
1939                 + ' data-before="0"'
1940                 + ' data-after="-' + duration.toString() + '"'
1941                 + ' data-points="' + duration.toString() + '"'
1942                 + ' data-colors="#DD4400"'
1943                 + ' role="application"></div>';
1944
1945         if(typeof charts['system.io'] !== 'undefined') {
1946                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1947                 + ' data-dimensions="in"'
1948                 + ' data-chart-library="easypiechart"'
1949                 + ' data-title="Disk Read"'
1950                 + ' data-units="KB / s"'
1951                 + ' data-width="10%"'
1952                 + ' data-before="0"'
1953                 + ' data-after="-' + duration.toString() + '"'
1954                 + ' data-points="' + duration.toString() + '"'
1955                 + ' role="application"></div>';
1956
1957                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1958                 + ' data-dimensions="out"'
1959                 + ' data-chart-library="easypiechart"'
1960                 + ' data-title="Disk Write"'
1961                 + ' data-units="KB / s"'
1962                 + ' data-width="10%"'
1963                 + ' data-before="0"'
1964                 + ' data-after="-' + duration.toString() + '"'
1965                 + ' data-points="' + duration.toString() + '"'
1966                 + ' role="application"></div>';
1967         }
1968
1969         if(typeof charts['system.cpu'] !== 'undefined')
1970                 head += '<div data-netdata="system.cpu"'
1971                 + ' data-chart-library="gauge"'
1972                 + ' data-title="CPU"'
1973                 + ' data-units="%"'
1974                 + ' data-gauge-max-value="100"'
1975                 + ' data-width="18%"'
1976                 + ' data-after="-' + duration.toString() + '"'
1977                 + ' data-points="' + duration.toString() + '"'
1978                 + ' data-colors="' + NETDATA.colors[12] + '"'
1979                 + ' role="application"></div>';
1980
1981         if(typeof charts['system.ipv4'] !== 'undefined') {
1982                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1983                 + ' data-dimensions="received"'
1984                 + ' data-chart-library="easypiechart"'
1985                 + ' data-title="IPv4 Inbound"'
1986                 + ' data-units="kbps"'
1987                 + ' data-width="10%"'
1988                 + ' data-before="0"'
1989                 + ' data-after="-' + duration.toString() + '"'
1990                 + ' data-points="' + duration.toString() + '"'
1991                 + ' role="application"></div>';
1992
1993                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1994                 + ' data-dimensions="sent"'
1995                 + ' data-chart-library="easypiechart"'
1996                 + ' data-title="IPv4 Outbound"'
1997                 + ' data-units="kbps"'
1998                 + ' data-width="10%"'
1999                 + ' data-before="0"'
2000                 + ' data-after="-' + duration.toString() + '"'
2001                 + ' data-points="' + duration.toString() + '"'
2002                 + ' role="application"></div>';
2003         }
2004         else if(typeof charts['system.ipv6'] !== 'undefined') {
2005                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
2006                 + ' data-dimensions="received"'
2007                 + ' data-chart-library="easypiechart"'
2008                 + ' data-title="IPv6 Inbound"'
2009                 + ' data-units="kbps"'
2010                 + ' data-width="10%"'
2011                 + ' data-before="0"'
2012                 + ' data-after="-' + duration.toString() + '"'
2013                 + ' data-points="' + duration.toString() + '"'
2014                 + ' role="application"></div>';
2015
2016                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
2017                 + ' data-dimensions="sent"'
2018                 + ' data-chart-library="easypiechart"'
2019                 + ' data-title="IPv6 Outbound"'
2020                 + ' data-units="kbps"'
2021                 + ' data-width="10%"'
2022                 + ' data-before="0"'
2023                 + ' data-after="-' + duration.toString() + '"'
2024                 + ' data-points="' + duration.toString() + '"'
2025                 + ' role="application"></div>';
2026         }
2027
2028         if(typeof charts['system.ram'] !== 'undefined')
2029                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
2030                 + ' data-dimensions="cached|free"'
2031                 + ' data-append-options="percentage"'
2032                 + ' data-chart-library="easypiechart"'
2033                 + ' data-title="Available RAM"'
2034                 + ' data-units="%"'
2035                 + ' data-easypiechart-max-value="100"'
2036                 + ' data-width="8%"'
2037                 + ' data-after="-' + duration.toString() + '"'
2038                 + ' data-points="' + duration.toString() + '"'
2039                 + ' data-colors="' + NETDATA.colors[7] + '"'
2040                 + ' role="application"></div>';
2041
2042         return head;
2043 }
2044
2045 function generateHeadCharts(type, chart, duration) {
2046         var head = '';
2047         var hcharts = anyAttribute(chartData, type, chart.context, []);
2048         if(hcharts.length > 0) {
2049                 var hi = 0, hlen = hcharts.length;
2050                 while(hi < hlen) {
2051                         if(typeof hcharts[hi] === 'function')
2052                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
2053                         else
2054                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
2055                         hi++;
2056                 }
2057         }
2058         return head;
2059 }
2060
2061 function renderPage(menus, data) {
2062         var div = document.getElementById('charts_div');
2063         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
2064
2065         // find the proper duration for per-second updates
2066         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
2067         var html = '';
2068         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
2069         var mainhead = headMain(data.charts, duration);
2070
2071         // sort the menus
2072         var main = sortObjectByPriority(menus);
2073         var i = 0, len = main.length;
2074         while(i < len) {
2075                 var menu = main[i++];
2076
2077                 // generate an entry at the main menu
2078
2079                 var menuid = name2id(menu);
2080                 sidebar += '<li class=""><a href="#' + menuid + '" onClick="return scrollToId(\'' + menuid + '\');">' + menus[menu].title + '</a><ul class="nav">';
2081                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menuid + '" role="heading">' + menus[menu].title + '</h1></div><div id="menu_' + menuid + '" role="document">';
2082
2083                 if(menus[menu].info !== null)
2084                         html += menus[menu].info;
2085
2086                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
2087
2088                 var shtml = '';
2089                 var mhead = '<div class="netdata-chart-row">' + mainhead;
2090                 mainhead = '';
2091
2092                 // sort the submenus of this menu
2093                 var sub = sortObjectByPriority(menus[menu].submenus);
2094                 var si = 0, slen = sub.length;
2095                 while(si < slen) {
2096                         var submenu = sub[si++];
2097
2098                         // generate an entry at the submenu
2099                         var submenuid = name2id(menu + '_' + submenu);
2100                         sidebar += '<li class><a href="#' + submenuid + '" onClick="return scrollToId(\'' + submenuid + '\');">' + menus[menu].submenus[submenu].title + '</a></li>';
2101                         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>';
2102
2103                         if(menus[menu].submenus[submenu].info !== null)
2104                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
2105
2106                         var head = '<div class="netdata-chart-row">';
2107                         var chtml = '';
2108
2109                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
2110
2111                         // sort the charts in this submenu of this menu
2112                         menus[menu].submenus[submenu].charts.sort(prioritySort);
2113                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
2114                         while(ci < clen) {
2115                                 var chart = menus[menu].submenus[submenu].charts[ci++];
2116
2117                                 // generate the submenu heading charts
2118                                 mhead += generateHeadCharts('mainheads', chart, duration);
2119                                 head += generateHeadCharts('heads', chart, duration);
2120
2121                                 // generate the chart
2122                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
2123                                         + ' data-width="' + pcent_width.toString() + '%"'
2124                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
2125                                         + ' data-before="0"'
2126                                         + ' data-after="-' + duration.toString() + '"'
2127                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
2128                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
2129                                         + ' role="application"></div>';
2130
2131                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
2132                         }
2133
2134                         head += '</div>';
2135                         shtml += head + chtml + '</div>';
2136                 }
2137
2138                 mhead += '</div>';
2139                 sidebar += '</ul></li>';
2140                 html += mhead + shtml + '</div></div><hr role="separator"/>';
2141         }
2142
2143         sidebar += '</ul>';
2144         div.innerHTML = html;
2145         document.getElementById('sidebar').innerHTML = sidebar;
2146         finalizePage();
2147 }
2148
2149 function renderChartsAndMenu(data) {
2150         var menus = {};
2151         var charts = data.charts;
2152
2153         for(var c in charts) {
2154                 enrichChartData(charts[c]);
2155
2156                 // create the menu
2157                 if(typeof menus[charts[c].menu] === 'undefined') {
2158                         menus[charts[c].menu] = {
2159                                 priority: charts[c].priority,
2160                                 submenus: {},
2161                                 title: menuTitle(charts[c]),
2162                                 info: menuInfo(charts[c].menu),
2163                                 height: menuHeight(charts[c].menu, options.chartsHeight)
2164                         };
2165                 }
2166
2167                 if(charts[c].priority < menus[charts[c].menu].priority)
2168                         menus[charts[c].menu].priority = charts[c].priority;
2169
2170                 // create the submenu
2171                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
2172                         menus[charts[c].menu].submenus[charts[c].submenu] = {
2173                                 priority: charts[c].priority,
2174                                 charts: new Array(),
2175                                 title: null,
2176                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
2177                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
2178                         };
2179                 }
2180
2181                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
2182                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
2183
2184                 // index the chart in the menu/submenu
2185                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
2186         }
2187
2188         // propagate the descriptive subname given to QoS
2189         // to all the other submenus with the same name
2190         for(var m in menus) {
2191                 for(var s in menus[m].submenus) {
2192                         // set the family using a name
2193                         if(typeof options.submenu_names[s] !== 'undefined') {
2194                                 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
2195                         }
2196                         else {
2197                                 menus[m].submenus[s].title = submenuTitle(m, s);
2198                         }
2199                 }
2200         }
2201
2202         renderPage(menus, data);
2203 }
2204
2205 function downloadAllCharts(netdata_url) {
2206         if(typeof netdata_url === 'undefined' || netdata_url === null)
2207                 netdata_url = NETDATA.serverDefault;
2208
2209         NETDATA.pause(function() {
2210
2211                 // download all the charts the server knows
2212                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
2213
2214                         options.data = data;
2215                         options.hostname = data.hostname;
2216                         document.getElementById('hostname').innerHTML = options.hostname;
2217                         document.getElementById('hostname').href = NETDATA.serverDefault;
2218                         document.title = options.hostname + ' netdata dashboard';
2219
2220                         renderChartsAndMenu(data);
2221
2222                         // prepare our DOM
2223 //                      prepareScreen(data);
2224
2225                         // due to affix issues, prepareScreen() will unpause
2226                         // netdata as needed
2227                 });
2228         });
2229 }
2230
2231 // ----------------------------------------------------------------------------
2232
2233 function versionLog(msg) {
2234         document.getElementById('versionCheckLog').innerHTML = msg;
2235 }
2236
2237 function getNetdataVersion(callback) {
2238         versionLog('Downloading installed version info from netdata...');
2239
2240         $.ajax({
2241                 url: 'version.txt',
2242                 async: true,
2243                 cache: false
2244         })
2245         .done(function(data) {
2246                 data = data.replace(/(\r\n|\n|\r| |\t)/gm,"");
2247                 if(data.length !== 40) {
2248                         versionLog('Received version string is invalid.');
2249                         callback(null);
2250                 }
2251                 else {
2252                         versionLog('Installed version of netdata is ' + data);
2253                         document.getElementById('netdataVersion').innerHTML = data;
2254                         callback(data);
2255                 }
2256         })
2257         .fail(function() {
2258                 versionLog('Failed to download installed version info from netdata!');
2259                 callback(null);
2260         });
2261 }
2262
2263 function getGithubLatestCommit(callback) {
2264         versionLog('Downloading latest version info from github...');
2265
2266         $.ajax({
2267                 url: 'https://api.github.com/repos/firehol/netdata/commits',
2268                 async: true,
2269                 cache: false
2270         })
2271         .done(function(data) {
2272                 versionLog('Latest version info from github is ' + data[0].sha);
2273                 callback(data[0].sha);
2274         })
2275         .fail(function() {
2276                 versionLog('Failed to download installed version info from github!');
2277                 callback(null);
2278         });
2279 }
2280
2281 function checkForUpdate(callback) {
2282         getNetdataVersion(function(sha1) {
2283                 if(sha1 === null) callback(null, null);
2284
2285                 getGithubLatestCommit(function(sha2) {
2286                         callback(sha1, sha2);
2287                 });
2288         });
2289
2290         return null;
2291 }
2292
2293 var updateBlinkCounter = 0;
2294 function notifyForUpdate(force) {
2295         versionLog('<p>checking for updates...</p>');
2296
2297         var now = new Date().getTime();
2298
2299         if(typeof force === 'undefined' || force !== true) {
2300                 var last = loadLocalStorage('last_update_check');
2301
2302                 if(typeof last === 'string')
2303                         last = parseInt(last);
2304                 else
2305                         last = 0;
2306
2307                 if(now - last < 3600000 * 8) {
2308                         // no need to check it - too soon
2309                         return;
2310                 }
2311         }
2312
2313         checkForUpdate(function(sha1, sha2) {
2314                 var save = false;
2315
2316                 if(sha1 === null) {
2317                         save = false;
2318                         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>');
2319                 }
2320                 else if(sha2 === null) {
2321                         save = false;
2322                         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>');
2323                 }
2324                 else if(sha1 === sha2) {
2325                         save = true;
2326                         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>');
2327                 }
2328                 else {
2329                         save = true;
2330                         var compare = 'https://github.com/firehol/netdata/compare/' + sha1.toString() + '...' + sha2.toString();
2331
2332                         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>');
2333
2334                         function updateButtonBlink() {
2335                                 updateBlinkCounter--;
2336                                 if(updateBlinkCounter > 0)
2337                                         $('#updateButton').fadeOut(500).fadeIn(500, updateButtonBlink);
2338                         }
2339
2340                         if(updateBlinkCounter === 0) {
2341                                 updateBlinkCounter = 300;
2342                                 updateButtonBlink();
2343                         }
2344                 }
2345
2346                 if(save)
2347                         saveLocalStorage('last_update_check', now.toString());
2348         });
2349 }
2350
2351 // ----------------------------------------------------------------------------
2352
2353 function getUrlParameter(sParam) {
2354     var sPageURL = decodeURIComponent(window.location.search.substring(1)),
2355         sURLVariables = sPageURL.split('&'),
2356         sParameterName,
2357         i;
2358
2359     for (i = 0; i < sURLVariables.length; i++) {
2360         sParameterName = sURLVariables[i].split('=');
2361
2362         if (sParameterName[0] === sParam) {
2363             return sParameterName[1] === undefined ? true : sParameterName[1];
2364         }
2365     }
2366 }
2367
2368 function finalizePage() {
2369         // resize all charts - without starting the background thread
2370         // this has to be done while NETDATA is paused
2371         // if we ommit this, the affix menu will be wrong, since all
2372         // the Dom elements are initially zero-sized
2373         NETDATA.parseDom();
2374
2375         var before = 0, after = 0, nowelcome = 0;
2376         after = getUrlParameter('force_after_ms');
2377         before = getUrlParameter('force_before_ms');
2378         nowelcome = (getUrlParameter('nowelcome') === true)?true:false;
2379
2380         if(before > 0 && after > 0) {
2381                 nowelcome = true;
2382                 NETDATA.globalPanAndZoom.setMaster(NETDATA.options.targets[0], after, before);
2383         }
2384
2385         // ------------------------------------------------------------------------
2386         // https://github.com/viralpatel/jquery.shorten/blob/master/src/jquery.shorten.js
2387         $.fn.shorten = function(settings) {
2388                 "use strict";
2389
2390                 var config = {
2391                         showChars: 750,
2392                         minHideChars: 10,
2393                         ellipsesText: "...",
2394                         moreText: '<i class="fa fa-expand" aria-hidden="true"></i> show more information',
2395                         lessText: '<i class="fa fa-compress" aria-hidden="true"></i> show less information',
2396                         onLess: function() { NETDATA.onscroll(); },
2397                         onMore: function() { NETDATA.onscroll(); },
2398                         errMsg: null,
2399                         force: false
2400                 };
2401
2402                 if (settings) {
2403                         $.extend(config, settings);
2404                 }
2405
2406                 if ($(this).data('jquery.shorten') && !config.force) {
2407                         return false;
2408                 }
2409                 $(this).data('jquery.shorten', true);
2410
2411                 $(document).off("click", '.morelink');
2412
2413                 $(document).on({
2414                         click: function() {
2415
2416                                 var $this = $(this);
2417                                 if ($this.hasClass('less')) {
2418                                         $this.removeClass('less');
2419                                         $this.html(config.moreText);
2420                                         $this.parent().prev().animate({'height':'0'+'%'}, 0, function () { $this.parent().prev().prev().show(); }).hide(0, function() {
2421                                                 config.onLess();
2422                                         });
2423
2424                                 } else {
2425                                         $this.addClass('less');
2426                                         $this.html(config.lessText);
2427                                         $this.parent().prev().animate({'height':'100'+'%'}, 0, function () { $this.parent().prev().prev().hide(); }).show(0, function() {
2428                                                 config.onMore();
2429                                         });
2430                                 }
2431                                 return false;
2432                         }
2433                 }, '.morelink');
2434
2435                 return this.each(function() {
2436                         var $this = $(this);
2437
2438                         var content = $this.html();
2439                         var contentlen = $this.text().length;
2440                         if (contentlen > config.showChars + config.minHideChars) {
2441                                 var c = content.substr(0, config.showChars);
2442                                 if (c.indexOf('<') >= 0) // If there's HTML don't want to cut it
2443                                 {
2444                                         var inTag = false; // I'm in a tag?
2445                                         var bag = ''; // Put the characters to be shown here
2446                                         var countChars = 0; // Current bag size
2447                                         var openTags = []; // Stack for opened tags, so I can close them later
2448                                         var tagName = null;
2449
2450                                         for (var i = 0, r = 0; r <= config.showChars; i++) {
2451                                                 if (content[i] == '<' && !inTag) {
2452                                                         inTag = true;
2453
2454                                                         // This could be "tag" or "/tag"
2455                                                         tagName = content.substring(i + 1, content.indexOf('>', i));
2456
2457                                                         // If its a closing tag
2458                                                         if (tagName[0] == '/') {
2459
2460
2461                                                                 if (tagName != '/' + openTags[0]) {
2462                                                                         config.errMsg = 'ERROR en HTML: the top of the stack should be the tag that closes';
2463                                                                 } else {
2464                                                                         openTags.shift(); // Pops the last tag from the open tag stack (the tag is closed in the retult HTML!)
2465                                                                 }
2466
2467                                                         } else {
2468                                                                 // There are some nasty tags that don't have a close tag like <br/>
2469                                                                 if (tagName.toLowerCase() != 'br') {
2470                                                                         openTags.unshift(tagName); // Add to start the name of the tag that opens
2471                                                                 }
2472                                                         }
2473                                                 }
2474                                                 if (inTag && content[i] == '>') {
2475                                                         inTag = false;
2476                                                 }
2477
2478                                                 if (inTag) { bag += content.charAt(i); } // Add tag name chars to the result
2479                                                 else {
2480                                                         r++;
2481                                                         if (countChars <= config.showChars) {
2482                                                                 bag += content.charAt(i); // Fix to ie 7 not allowing you to reference string characters using the []
2483                                                                 countChars++;
2484                                                         } else // Now I have the characters needed
2485                                                         {
2486                                                                 if (openTags.length > 0) // I have unclosed tags
2487                                                                 {
2488                                                                         //console.log('They were open tags');
2489                                                                         //console.log(openTags);
2490                                                                         for (j = 0; j < openTags.length; j++) {
2491                                                                                 //console.log('Cierro tag ' + openTags[j]);
2492                                                                                 bag += '</' + openTags[j] + '>'; // Close all tags that were opened
2493
2494                                                                                 // You could shift the tag from the stack to check if you end with an empty stack, that means you have closed all open tags
2495                                                                         }
2496                                                                         break;
2497                                                                 }
2498                                                         }
2499                                                 }
2500                                         }
2501                                         c = $('<div/>').html(bag + '<span class="ellip">' + config.ellipsesText + '</span>').html();
2502                                 }else{
2503                                         c+=config.ellipsesText;
2504                                 }
2505
2506                                 var html = '<div class="shortcontent">' + c +
2507                                                 '</div><div class="allcontent">' + content +
2508                                                 '</div><span><a href="javascript://nop/" class="morelink">' + config.moreText + '</a></span>';
2509
2510                                 $this.html(html);
2511                                 $this.find(".allcontent").hide(); // Hide all text
2512                                 $('.shortcontent p:last', $this).css('margin-bottom', 0); //Remove bottom margin on last paragraph as it's likely shortened
2513                         }
2514                 });
2515
2516         };
2517         $(".chart-message").shorten();
2518         // ------------------------------------------------------------------------
2519
2520         // let it run (update the charts)
2521         NETDATA.unpause();
2522
2523         // check if we have to jump to a specific section
2524         scrollToId(location.hash.replace('#',''));
2525
2526         /* activate bootstrap sidebar (affix) */
2527         $('#sidebar').affix({
2528                 offset: {
2529                         top: (isdemo())?150:0,
2530                         bottom: 0
2531                 }
2532         });
2533
2534         /* fix scrolling of very long affix lists
2535            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
2536          */
2537         $('#sidebar').on('affixed.bs.affix', function() {
2538                 $(this).removeAttr('style');
2539         });
2540
2541         /* activate bootstrap scrollspy (needed for sidebar) */
2542         $(document.body).scrollspy({
2543                 target: '#sidebar',
2544                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
2545         });
2546
2547         // change the URL based on the current position of the screen
2548         $('#sidebar').on('activate.bs.scrollspy', function (e) {
2549                 var el = $(e.target);
2550                 if(el.find('ul').size() == 0)
2551                         history.replaceState(null, document.title, el.find('a').attr('href'));
2552         });
2553
2554         document.getElementById('footer').style.display = 'block';
2555
2556         var update_options_modal = function() {
2557                 // console.log('update_options_modal');
2558
2559                 var sync_option = function(option) {
2560                         var self = $('#' + option);
2561
2562                         if(self.prop('checked') !== NETDATA.getOption(option)) {
2563                                 // console.log('switching ' + option.toString());
2564                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
2565                         }
2566                 }
2567
2568                 var theme_sync_option = function(option) {
2569                         var self = $('#' + option);
2570
2571                         self.bootstrapToggle(netdataTheme === 'slate'?'on':'off');
2572                 }
2573
2574                 sync_option('eliminate_zero_dimensions');
2575                 sync_option('destroy_on_hide');
2576                 sync_option('parallel_refresher');
2577                 sync_option('concurrent_refreshes');
2578                 sync_option('sync_selection');
2579                 sync_option('sync_pan_and_zoom');
2580                 sync_option('stop_updates_when_focus_is_lost');
2581                 sync_option('smooth_plot');
2582                 sync_option('pan_and_zoom_data_padding');
2583                 sync_option('show_help');
2584                 theme_sync_option('netdata_theme_control');
2585
2586                 if(NETDATA.getOption('parallel_refresher') === false) {
2587                         $('#concurrent_refreshes_row').hide();
2588                 }
2589                 else {
2590                         $('#concurrent_refreshes_row').show();
2591                 }
2592         };
2593         NETDATA.setOption('setOptionCallback', update_options_modal);
2594
2595         // handle options changes
2596         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
2597         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
2598         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
2599         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
2600         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
2601         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
2602         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
2603         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
2604         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
2605         $('#show_help').change(function()                       { NETDATA.setOption('show_help', $(this).prop('checked')); location.reload(); });
2606
2607         // this has to be the last
2608         // it reloads the page
2609         $('#netdata_theme_control').change(function() {
2610                 if(setTheme($(this).prop('checked')?'slate':'white'))
2611                         location.reload();
2612         });
2613
2614         $('#updateModal').on('shown.bs.modal', function() {
2615                 notifyForUpdate(true);
2616         });
2617
2618         $('#deleteRegistryModal').on('hidden.bs.modal', function() {
2619                 deleteRegistryGuid = null;
2620         });
2621
2622         if(isdemo()) {
2623                 if(!nowelcome) {
2624                         setTimeout(function() {
2625                                 $('#welcomeModal').modal();
2626                         }, 1000);
2627                 }
2628
2629                 // google analytics when this is used for the home page of the demo sites
2630                 // this does not run on user's installations
2631                 setTimeout(function() {
2632                         (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
2633                         (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
2634                         m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
2635                         })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
2636
2637                         ga('create', 'UA-64295674-3', 'auto');
2638                         ga('send', 'pageview');
2639                 }, 2000);
2640         }
2641         else notifyForUpdate();
2642 }
2643
2644 function resetDashboardOptions() {
2645         var help = NETDATA.options.current.show_help;
2646
2647         NETDATA.resetOptions();
2648         if(setTheme('slate'))
2649                 location.reload();
2650
2651         if(help !== NETDATA.options.current.show_help)
2652                 location.reload();
2653 }
2654
2655 downloadAllCharts();
2656
2657 </script>
2658
2659 </body>
2660 </html>