web/index.html

   1 <!DOCTYPE html>
   2 <html lang="en">
   3 <head>
   4         <title>netdata dashboard</title>
   5
   6         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   7         <meta charset="utf-8">
   8         <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
   9         <meta name="viewport" content="width=device-width, initial-scale=1">
  10         <meta name="apple-mobile-web-app-capable" content="yes">
  11         <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
  12         <meta name="author" content="costa@tsaousis.gr">
  13
  14         <link rel="shortcut icon" href="images/seo-performance-multi-size.ico">
  15
  16         <link rel="apple-touch-icon" href="images/seo-performance-72.png">
  17         <link rel="apple-touch-icon" sizes="72x72" href="images/seo-performance-72.png">
  18         <link rel="apple-touch-icon" sizes="114x114" href="images/seo-performance-114.png">
  19
  20         <link rel="icon" type="image/png" sizes="512x512" href="images/seo-performance-512.png">
  21         <link rel="icon" type="image/png" sizes="256x256" href="images/seo-performance-256.png">
  22         <link rel="icon" type="image/png" sizes="128x128" href="images/seo-performance-128.png">
  23         <link rel="icon" type="image/png" sizes="64x64" href="images/seo-performance-64.png">
  24         <link rel="icon" type="image/png" sizes="48x48" href="images/seo-performance-48.png">
  25         <link rel="icon" type="image/png" sizes="32x32" href="images/seo-performance-32.png">
  26         <link rel="icon" type="image/png" sizes="24x24" href="images/seo-performance-24.png">
  27         <link rel="icon" type="image/png" sizes="16x16" href="images/seo-performance-16.png">
  28
  29         <meta property="og:locale" content="en_US" />
  30         <meta property="og:image" content="http://my-netdata.io/images/post.png"/>
  31         <meta property="og:url" content="http://my-netdata.io/"/>
  32         <meta property="og:type" content="website"/>
  33         <meta property="og:site_name" content="netdata"/>
  34         <meta property="og:title" content="netdata - real-time performance monitoring, done right!"/>
  35         <meta property="og:description" content="Stunning real-time dashboards, blazingly fast and extremely interactive. Zero configuration, zero dependencies, zero maintenance." />
  36
  37         <style>
  38
  39         /* prevent body from hiding under the navbar */
  40         body {
  41                 padding-top: 50px;
  42         }
  43
  44         .modal-wide .modal-dialog {
  45                 width: 80%;
  46         }
  47
  48         /* fix # anchors scrolling under the navbar
  49            https://github.com/twbs/bootstrap/issues/1768#issuecomment-46519033
  50          */
  51         h1 {
  52                 position: relative;
  53                 z-index: -1;
  54         }
  55         h2 {
  56                 position: relative;
  57                 z-index: -2;
  58         }
  59         h1:before, h2:before {
  60                 display: block;
  61                 content: " ";
  62                 margin-top: -70px;
  63                 height: 70px;
  64                 visibility: hidden;
  65         }
  66
  67         .p {
  68                 display: block;
  69                 margin-top: 15px;
  70         }
  71
  72         .option-row,
  73         .option-control {
  74                 vertical-align: top;
  75                 padding: 10px;
  76                 padding-top: 30px;
  77                 padding-left: 30px;
  78         }
  79
  80         .option-info {
  81                 padding: 10px;
  82         }
  83
  84         .chart-message {
  85                 display: block;
  86                 margin-top: 10px;
  87         }
  88
  89         .container {
  90                 width: 90% !important;
  91         }
  92
  93         #masthead h1 {
  94                 /*font-size: 30px;*/
  95                 line-height: 1;
  96                 padding-top: 30px;
  97         }
  98
  99         #masthead .well {
 100                 margin-top:4%;
 101         }
 102
 103         /* fix the navbar shifting when a modal is open */
 104         /* https://github.com/twbs/bootstrap/issues/14040#issuecomment-159891033 */
 105         body.modal-open{
 106                 width: 100% !important;
 107                 padding-right: 0 !important;
 108 /*              overflow-y: scroll !important; */
 109 /*              position: fixed !important;*/
 110                 overflow: visible;
 111         }
 112
 113         /*
 114          * Side navigation
 115          *
 116          * Scrollspy and affixed enhanced navigation to highlight sections and secondary
 117          * sections of docs content.
 118          */
 119
 120         .affix {
 121                 position: static;
 122                 top: 70px !important;
 123                 /*width: 220px;*/
 124         }
 125
 126         .affix-top {
 127                 /*width: 220px;*/
 128         }
 129
 130         .dashboard-sidebar {
 131                 max-height: calc(100% - 70px) !important;
 132                 overflow-y: auto;
 133                 /*width: 220px !important;*/
 134         }
 135
 136         /* By default it's not affixed in mobile views, so undo that */
 137         .dashboard-sidebar.affix {
 138                 position: static;
 139         }
 140
 141         @media (min-width: 768px) {
 142                 .dashboard-sidebar {
 143                         padding-left: 20px;
 144                 }
 145         }
 146
 147         /* First level of nav */
 148         .dashboard-sidenav {
 149                 margin-top: 20px;
 150                 margin-bottom: 20px;
 151         }
 152
 153         /* All levels of nav */
 154         .dashboard-sidebar .nav > li > a {
 155                 display: block;
 156                 padding: 4px 20px;
 157                 font-size: 13px;
 158                 font-weight: 500;
 159                 color: #767676;
 160         }
 161         .dashboard-sidebar .nav > li > a:hover,
 162         .dashboard-sidebar .nav > li > a:focus {
 163                 padding-left: 19px;
 164                 color: #563d7c;
 165                 text-decoration: none;
 166                 background-color: transparent;
 167                 border-left: 1px solid #563d7c;
 168         }
 169         .dashboard-sidebar .nav > .active > a,
 170         .dashboard-sidebar .nav > .active:hover > a,
 171         .dashboard-sidebar .nav > .active:focus > a {
 172                 padding-left: 18px;
 173                 font-weight: bold;
 174                 color: #563d7c;
 175                 background-color: transparent;
 176                 border-left: 2px solid #563d7c;
 177         }
 178
 179         /* Nav: second level (shown on .active) */
 180         .dashboard-sidebar .nav .nav {
 181                 display: none; /* Hide by default, but at >768px, show it */
 182                 padding-bottom: 10px;
 183         }
 184         .dashboard-sidebar .nav .nav > li > a {
 185                 padding-top: 1px;
 186                 padding-bottom: 1px;
 187                 padding-left: 30px;
 188                 font-size: 12px;
 189                 font-weight: normal;
 190         }
 191         .dashboard-sidebar .nav .nav > li > a:hover,
 192         .dashboard-sidebar .nav .nav > li > a:focus {
 193                 padding-left: 29px;
 194         }
 195         .dashboard-sidebar .nav .nav > .active > a,
 196         .dashboard-sidebar .nav .nav > .active:hover > a,
 197         .dashboard-sidebar .nav .nav > .active:focus > a {
 198                 padding-left: 28px;
 199                 font-weight: 500;
 200         }
 201
 202         .dropdown-menu {
 203                 min-width: 200px;
 204         }
 205         .dropdown-menu.columns-2 {
 206                 margin: 0;
 207                 padding: 0;
 208                 width: 400px;
 209         }
 210         .dropdown-menu li a {
 211                 padding: 5px 15px;
 212                 font-weight: 300;
 213         }
 214         .dropdown-menu.multi-column {
 215                 overflow-x: hidden;
 216         }
 217         .multi-column-dropdown {
 218                 list-style: none;
 219                 padding: 0;
 220         }
 221         .multi-column-dropdown li a {
 222                 display: block;
 223                 clear: both;
 224                 line-height: 1.428571429;
 225                 white-space: normal;
 226         }
 227         .multi-column-dropdown li a:hover {
 228                 text-decoration: none;
 229                 color: #f5f5f5;
 230                 background-color: #262626;
 231         }
 232         .scrollable-menu {
 233                 height: auto;
 234                 max-height: 80vh;
 235                 overflow-x: hidden;
 236         }
 237
 238         /* Back to top (hidden on mobile) */
 239         .back-to-top,
 240         .dashboard-theme-toggle {
 241                 display: none;
 242                 padding: 4px 10px;
 243                 margin-top: 10px;
 244                 margin-left: 10px;
 245                 font-size: 12px;
 246                 font-weight: 500;
 247                 color: #999;
 248         }
 249         .back-to-top:hover,
 250         .dashboard-theme-toggle:hover {
 251                 color: #563d7c;
 252                 text-decoration: none;
 253         }
 254         .dashboard-theme-toggle {
 255                 margin-top: 0;
 256         }
 257
 258         @media (min-width: 768px) {
 259                 .back-to-top,
 260                 .dashboard-theme-toggle {
 261                         display: block;
 262                 }
 263
 264                 /* Widen the fixed sidebar */
 265                 .dashboard-sidebar.affix,
 266                 .dashboard-sidebar.affix-top,
 267                 .dashboard-sidebar.affix-bottom {
 268                         width: 200px !important;
 269                 }
 270
 271                 .dashboard-sidebar.affix {
 272                         position: fixed; /* Undo the static from mobile first approach */
 273                         top: 20px;
 274                 }
 275
 276                 .dashboard-sidebar.affix-bottom {
 277                         position: absolute; /* Undo the static from mobile first approach */
 278                 }
 279
 280                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 281                 .dashboard-sidebar.affix .dashboard-sidenav {
 282                         margin-top: 0;
 283                         margin-bottom: 0;
 284                 }
 285         }
 286
 287         /* Show and affix the side nav when space allows it */
 288         @media (min-width: 992px) {
 289                 .dashboard-sidebar .nav > .active > ul {
 290                         display: block;
 291                 }
 292
 293                 /* Widen the fixed sidebar */
 294                 .dashboard-sidebar.affix,
 295                 .dashboard-sidebar.affix-top,
 296                 .dashboard-sidebar.affix-bottom {
 297                         width: 200px !important;
 298                 }
 299                 .dashboard-sidebar.affix {
 300                         position: fixed; /* Undo the static from mobile first approach */
 301                         top: 20px;
 302                 }
 303                 .dashboard-sidebar.affix-bottom {
 304                         position: absolute; /* Undo the static from mobile first approach */
 305                 }
 306                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 307                 .dashboard-sidebar.affix .dashboard-sidenav {
 308                         margin-top: 0;
 309                         margin-bottom: 0;
 310                 }
 311         }
 312
 313         @media (min-width: 1200px) {
 314                 /* Widen the fixed sidebar again */
 315                 .dashboard-sidebar.affix-bottom,
 316                 .dashboard-sidebar.affix-top,
 317                 .dashboard-sidebar.affix {
 318                         width: 263px;
 319                 }
 320         }
 321         </style>
 322
 323         <!-- you can set your netdata server globally, by ucommenting this -->
 324         <!-- you can also give a different server per chart, with the attribute: data-host="http://netdata.server:19999" -->
 325         <!-- <script> netdataServer = "http://box:19999"; </script> -->
 326
 327         <!-- check which theme to use -->
 328         <script>
 329                 function loadLocalStorage(name) {
 330                         var ret = null;
 331
 332                         try {
 333                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object')
 334                                         ret = localStorage.getItem(name);
 335                         }
 336                         catch(error) {
 337                                 ;
 338                         }
 339
 340                         if(typeof ret === 'undefined' || ret === null)
 341                                 return null;
 342
 343                         return ret;
 344                 }
 345
 346                 function saveLocalStorage(name, value) {
 347                         try {
 348                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object') {
 349                                         localStorage.setItem(name, value.toString());
 350                                         return true;
 351                                 }
 352                         }
 353                         catch(error) {
 354                                 ;
 355                         }
 356
 357                         return false;
 358                 }
 359
 360                 function getTheme(def) {
 361                         var ret = loadLocalStorage('netdataTheme');
 362                         if(typeof ret === 'undefined' || ret === null || ret === 'undefined')
 363                                 return def;
 364                         else
 365                                 return ret;
 366                 }
 367
 368                 var netdataTheme = getTheme('slate');
 369
 370                 function setTheme(theme) {
 371                         if(theme === netdataTheme) return false;
 372
 373                         return saveLocalStorage('netdataTheme', theme);
 374                 }
 375
 376                 var netdataRegistryCallback = function(machines_array) {
 377                         var el = '';
 378                         var a1 = '';
 379                         var found = 0;
 380
 381                         if(machines_array) {
 382                                 function name_comparator_desc(a, b) {
 383                                         if (a.name > b.name) return -1;
 384                                         if (a.name < b.name) return 1;
 385                                         return 0;
 386                                 }
 387
 388                                 var machines = machines_array.sort(name_comparator_desc);
 389                                 var len = machines.length;
 390                                 while(len--) {
 391                                         var u = machines[len];
 392                                         found++;
 393                                         el += '<li id="registry_server_' + u.guid + '"><a href="#" onClick="return gotoServerModalHandler(\'' + u.guid + '\');">' + u.name + '</a></li>';
 394                                         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>';
 395                                 }
 396                         }
 397
 398                         if(!found) {
 399                                 if(machines)
 400                                         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>';
 401                                 else
 402                                         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>';
 403
 404                                 a1 += '<li><a href="#" onClick="return false;">&nbsp;</a></li>';
 405
 406                                 el += '<li role="separator" class="divider"></li>' +
 407                                                 '<li><a href="//london.netdata.rocks/default.html">EU - London (DigitalOcean.com)</a></li>' +
 408                                                 '<li><a href="//atlanta.netdata.rocks/default.html">US - Atlanta (CDN77.com)</a></li>' +
 409                                                 '<li><a href="//athens.netdata.rocks/default.html">EU - Athens</a></li>';
 410                                 a1 += '<li role="separator" class="divider"></li>' +
 411                                                 '<li><a href="#">&nbsp;</a></li>' +
 412                                                 '<li><a href="#">&nbsp;</a></li>'+
 413                                                 '<li><a href="#">&nbsp;</a></li>';
 414                         }
 415
 416                         el += '<li role="separator" class="divider"></li>';
 417                         a1 += '<li role="separator" class="divider"></li>';
 418
 419                         el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #999;" target="_blank">What is this?</a></li>';
 420                         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>'
 421
 422                         document.getElementById('mynetdata_servers').innerHTML = el;
 423                         document.getElementById('mynetdata_servers2').innerHTML = el;
 424                         document.getElementById('mynetdata_actions1').innerHTML = a1;
 425                 };
 426
 427         </script>
 428
 429         <!-- load the dashboard manager - it will do the rest -->
 430         <script type="text/javascript" src="dashboard.js?v37"></script>
 431 </head>
 432
 433 <body data-spy="scroll" data-target="#sidebar">
 434         <nav class="navbar navbar-default navbar-fixed-top" role="banner">
 435                 <div class="container">
 436                         <nav id="mynetdata_nav" class="collapse navbar-collapse navbar-left hidden-sm hidden-xs" role="navigation" style="padding-right: 20px;">
 437                                 <ul class="nav navbar-nav">
 438                                         <li class="dropdown">
 439                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">my-netdata <strong class="caret"></strong></a>
 440                                                 <ul class="dropdown-menu scrollable-menu inpagemenu multi-column columns-2" role="menu">
 441                                                         <div class="row">
 442                                                                 <div class="col-sm-6" style="width: 85%; padding-right: 0;">
 443                                                                         <ul id="mynetdata_servers" class="multi-column-dropdown">
 444                                                                                 <li><a href="#" onclick="return false;" style="color: #999;">loading...</a></li>
 445                                                                         </ul>
 446                                                                 </div>
 447                                                                 <div class="col-sm-3 hidden-xs" style="width: 15%; padding-left: 0;">
 448                                                                         <ul id="mynetdata_actions1" class="multi-column-dropdown">
 449                                                                         <li style="color: #999;">&nbsp;</li>
 450                                                                         </ul>
 451                                                                 </div>
 452                                                         </div>
 453                                                 </ul>
 454                                         </li>
 455                                 </ul>
 456                         </nav>
 457                         <div class="navbar-header">
 458                                 <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".navbar-collapse">
 459                                         <span class="sr-only">Toggle navigation</span>
 460                                         <span class="icon-bar"></span>
 461                                         <span class="icon-bar"></span>
 462                                         <span class="icon-bar"></span>
 463                                 </button>
 464                                 <a href="/" class="navbar-brand" id="hostname">netdata</a>
 465                         </div>
 466                         <nav class="collapse navbar-collapse navbar-right" role="navigation">
 467                                 <ul class="nav navbar-nav">
 468                                         <li class="hidden-sm"><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 469                                         <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>
 470                                         <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>
 471                                         <li class="hidden-sm"><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 472                                         <li class="dropdown hidden-md hidden-lg hidden-xs">
 473                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">Menu <strong class="caret"></strong></a>
 474                                                 <ul class="dropdown-menu scrollable-menu inpagemenu" role="menu">
 475                                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 476                                                         <li><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 477                                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 478                                                 </ul>
 479                                         </li>
 480                                         <li class="dropdown hidden-sm hidden-md hidden-lg">
 481                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">my-netdata <strong class="caret"></strong></a>
 482                                                 <ul id="mynetdata_servers2" class="dropdown-menu scrollable-menu inpagemenu" role="menu">
 483                                                         <li><a href="#" onclick="return false;" style="color: #999;">loading...</a></li>
 484                                                 </ul>
 485                                         </li>
 486                                 </ul>
 487                         </nav>
 488         </nav>
 489                 </div>
 490         </nav>
 491
 492         <div id="masthead" style="display: none;">
 493                 <div class="container">
 494                         <div class="row">
 495                                 <div class="col-md-7">
 496                                         <h1>Netdata
 497                                                 <p class="lead">Real-time performance monitoring, in the greatest possible detail</p>
 498                                         </h1>
 499                                 </div>
 500                                 <div class="col-md-5">
 501                                         <div class="well well-lg">
 502                                                 <div class="row">
 503                                                 <div class="col-md-6">
 504                                                         <b>Drag</b> charts to pan.
 505                                                         <b>Shift + wheel</b> on them, to zoom in and out.
 506                                                         <b>Double-click</b> on them, to reset.
 507                                                         <b>Hover</b> on them too!
 508                                                         </div>
 509                                                 <div class="col-md-6">
 510                                                         <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>
 511                                                         </div>
 512                                                 </div>
 513                                         </div>
 514                                 </div>
 515                         </div>
 516                 </div>
 517         </div>
 518
 519         <div class="container">
 520                 <div class="row">
 521                         <div class="col-md-10" role="main">
 522                                 <div id="charts_div"></div>
 523                         </div>
 524                         <div class="col-md-2" role="complementary">
 525                                 <nav class="dashboard-sidebar hidden-print hidden-xs hidden-sm" id="sidebar" role="menu"></nav>
 526                         </div>
 527                 </div>
 528         </div>
 529
 530         <div id="footer" class="container" style="display: none;">
 531                 <div class="row">
 532                         <div class="col-md-10" role="main">
 533                                 <div class="p">
 534                                         <big><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></big><br/>
 535                                         <i class="fa fa-copyright"></i> Copyright 2016, Costa Tsaousis.<br/>
 536                                         Released under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank">GPL v3 or later</a>.<br/>
 537                                 </div>
 538                                 <div class="p">
 539                                         <small>
 540                                                 <a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a> re-distributes these software tools:
 541
 542                                                 <i class="fa fa-circle"></i> The excellent <a href="http://dygraphs.com/" target="_blank">Dygraphs.com</a> web chart library,
 543                                                 <i class="fa fa-copyright"></i> Copyright 2009, Dan Vanderkam, <a href="http://dygraphs.com/legal.html" target="_blank">MIT License</a>
 544
 545                                                 <i class="fa fa-circle"></i> <a href="http://omnipotent.net/jquery.sparkline/" target="_blank">jQuery Sparklines</a> web chart library,
 546                                                 <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>
 547
 548                                                 <i class="fa fa-circle"></i> <a href="http://benpickles.github.io/peity/" target="_blank">Peity</a> web chart library,
 549                                                 <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>
 550
 551                                                 <i class="fa fa-circle"></i> <a href="https://rendro.github.io/easy-pie-chart/" target="_blank">Easy Pie Chart</a> web chart library,
 552                                                 <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>
 553
 554                                                 <i class="fa fa-circle"></i> <a href="http://bernii.github.io/gauge.js/" target="_blank">Gauge.js</a> web chart library,
 555                                                 <i class="fa fa-copyright"></i> Copyright, Bernard Kobos, <a href="http://bernii.github.io/gauge.js/" target="_blank">MIT License</a>
 556
 557                                                 <i class="fa fa-circle"></i> <a href="https://jquery.org/" target="_blank">jQuery</a>,
 558                                                 <i class="fa fa-copyright"></i> Copyright 2015, jQuery Foundation, <a href="https://jquery.org/license/" target="_blank">MIT License</a>
 559
 560                                                 <i class="fa fa-circle"></i> <a href="http://getbootstrap.com/getting-started/" target="_blank">Bootstrap</a>,
 561                                                 <i class="fa fa-copyright"></i> Copyright 2015, Twitter, <a href="http://getbootstrap.com/getting-started/#license-faqs" target="_blank">MIT License</a>
 562
 563                                                 <i class="fa fa-circle"></i> <a href="http://www.bootstraptoggle.com/" target="_blank">Bootstrap Toggle</a>,
 564                                                 <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>
 565
 566                                                 <i class="fa fa-circle"></i> <a href="https://jamesflorentino.github.io/nanoScrollerJS/" target="_blank">NanoScroller</a>,
 567                                                 <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>
 568
 569                                                 <i class="fa fa-circle"></i> <a href="https://github.com/marcj/css-element-queries" target="_blank">CSS Element Queries</a>,
 570                                                 <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>
 571
 572                                                 <i class="fa fa-circle"></i> <a href="https://fortawesome.github.io/Font-Awesome/" target="_blank">FontAwesome</a>,
 573                                                 <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>
 574
 575                                                 <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.
 576
 577                                                 <i class="fa fa-circle"></i> <a href="http://morrisjs.github.io/morris.js/" target="_blank">morris.js</a>,
 578                                                 <i class="fa fa-copyright"></i> Copyright 2013, Olly Smith, <a href="http://morrisjs.github.io/morris.js/" target="_blank">Simplified BSD License</a>
 579
 580                                                 <i class="fa fa-circle"></i> <a href="http://raphaeljs.com/" target="_blank">Raphaël</a>,
 581                                                 <i class="fa fa-copyright"></i> Copyright 2008, Dmitry Baranovskiy, <a href="http://raphaeljs.com/license.html" target="_blank">MIT License</a>
 582
 583                                                 <i class="fa fa-circle"></i> <a href="http://C3js.org/" target="_blank">C3</a>,
 584                                                 <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>
 585
 586                                                 <i class="fa fa-circle"></i> <a href="http://D3js.org/" target="_blank">D3</a>,
 587                                                 <i class="fa fa-copyright"></i> Copyright 2015, Mike Bostock, <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">BSD License</a>
 588
 589                                         </small>
 590                                 </div>
 591                         </div>
 592                 </div>
 593         </div>
 594
 595         <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
 596                 <div class="modal-dialog modal-lg" role="document">
 597                         <div class="modal-content">
 598                                 <div class="modal-header">
 599                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 600                                         <h4 class="modal-title" id="welcomeModalLabel">Welcome!</h4>
 601                                 </div>
 602                                 <div class="modal-body">
 603                                                 <div class="p">
 604                                                 <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.
 605                                                 </div>
 606                                                 <div class="p">
 607                                                 <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.
 608                                                 </div>
 609                                                 <div class="p">
 610                                                 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.
 611                                                 </div>
 612                                                 <div class="p">
 613                                                 <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>%),
 614                                                 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).
 615                                                 </div>
 616                                                 <div class="p">
 617                                                 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>!).
 618                                                 </div>
 619                                                 <div class="p">
 620                                                 For more information please refer to the <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata wiki</a></b>.
 621                                                 </div>
 622                                 </div>
 623                                 <div class="modal-footer">
 624                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 625                                 </div>
 626                         </div>
 627                 </div>
 628         </div>
 629
 630         <div class="modal fade" id="helpModal" tabindex="-1" role="dialog" aria-labelledby="helpModalLabel">
 631                 <div class="modal-dialog modal-lg" role="document">
 632                         <div class="modal-content">
 633                                 <div class="modal-header">
 634                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 635                                         <h4 class="modal-title" id="helpModalLabel">Dashboard Help</h4>
 636                                 </div>
 637                                 <div class="modal-body">
 638
 639                                         <h4>Dygraphs (line, area and stacked area charts)</h4>
 640
 641                                         <!-- Nav tabs -->
 642                                         <ul class="nav nav-tabs" role="tablist">
 643                                                 <li role="presentation" class="active"><a href="#help_mouse" aria-controls="help_mouse" role="tab" data-toggle="tab">Mouse Interface</a></li>
 644                                                 <li role="presentation"><a href="#help_touch" aria-controls="help_touch" role="tab" data-toggle="tab">Touch Interface</a></li>
 645                                         </ul>
 646
 647                                         <!-- Tab panes -->
 648                                         <div class="tab-content">
 649                                                 <div role="tabpanel" class="tab-pane active" id="help_mouse">
 650                                                         <div class="p">
 651                                                                 <h4>Mouse Over / Hover</h4>
 652                                                                 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).
 653                                                                 <br/>
 654                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 655                                                         </div>
 656                                                         <hr/>
 657                                                         <div class="p">
 658                                                                 <h4>Drag Chart Contents</h4>
 659                                                                 Drag the contents of a chart to pan it horizontally.
 660                                                                 <br/>
 661                                                                 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).
 662                                                                 <br/>
 663                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double click</b> a panned chart.
 664                                                         </div>
 665                                                         <hr/>
 666                                                         <div class="p">
 667                                                                 <h4>Double Click</h4>
 668                                                                 Double Click a chart to reset all the charts to their default auto-refreshing state.
 669                                                         </div>
 670                                                         <hr/>
 671                                                         <div class="p">
 672                                                                 <h4>SHIFT + Drag</h4>
 673                                                                 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:
 674                                                                 <ul>
 675                                                                         <li>The already loaded chart contents are zoomed (low resolution)</li>
 676                                                                         <li>New data are transferred from the netdata server, to refresh the chart with possibly more detail.</li>
 677                                                                 </ul>
 678                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 679                                                         </div>
 680                                                         <hr/>
 681                                                         <div class="p">
 682                                                                 <h4>SHIFT + Mouse Wheel <small>(does not work on firefox and IE/Edge)</small></h4>
 683                                                                 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.
 684                                                                 <br/>
 685                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 686                                                         </div>
 687                                                         <hr/>
 688                                                         <div class="p">
 689                                                                 <h4>Legend Operations</h4>
 690                                                                 Click on the label or value of a dimension, will select / un-select this dimension.
 691                                                                 <br/>
 692                                                                 You can press any of the SHIFT or CONTROL keys and then click on legend labels or values, to select / un-select multiple dimensions.
 693                                                         </div>
 694                                                 </div>
 695                                                 <div role="tabpanel" class="tab-pane" id="help_touch">
 696                                                         <div class="p">
 697                                                                 <h4>Single Tap</h4>
 698                                                                 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).
 699                                                                 <br/>
 700                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 701                                                         </div>
 702                                                         <hr/>
 703                                                         <div class="p">
 704                                                                 <h4>Drag Chart Contents</h4>
 705                                                                 Touch and Drag the contents of a chart to pan it horizontally.
 706                                                                 <br/>
 707                                                                 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).
 708                                                                 <br/>
 709                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double tap</b> a panned chart.
 710                                                         </div>
 711                                                         <hr/>
 712                                                         <div class="p">
 713                                                                 <h4>Double Tap</h4>
 714                                                                 Double tap a chart to reset all the charts to their default auto-refreshing state.
 715                                                         </div>
 716                                                         <hr/>
 717                                                         <div class="p">
 718                                                                 <h4>Zoom <small>(does not work on firefox and IE/Edge)</small></h4>
 719                                                                 With two fingers, zoom in or out.
 720                                                                 <br/>
 721                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 722                                                         </div>
 723                                                         <hr/>
 724                                                         <div class="p">
 725                                                                 <h4>Legend Operations</h4>
 726                                                                 Tap on the label or value of a dimension, will select / un-select this dimension.
 727                                                         </div>
 728                                                 </div>
 729                                         </div>
 730                                 </div>
 731                                 <div class="modal-footer">
 732                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 733                                 </div>
 734                         </div>
 735                 </div>
 736         </div>
 737
 738         <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
 739                 <div class="modal-dialog modal-lg" role="document">
 740                         <div class="modal-content">
 741                                 <div class="modal-header">
 742                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 743                                         <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
 744                                 </div>
 745                                 <div class="modal-body">
 746                                         <center>
 747                                                 <small style="color: #BBBBBB;">These are browser settings. Each viewer has its own. They do not affect the operation of your netdata server.
 748                                                 <br/>
 749                                                 Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
 750                                                 <br/>
 751                                                 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="resetDashboardOptions(); return false;">here</a>.</small>
 752                                         </center>
 753                                         <div style="padding: 10px;"></div>
 754
 755                                         <!-- Nav tabs -->
 756                                         <ul class="nav nav-tabs" role="tablist">
 757                                                 <li role="presentation" class="active"><a href="#settings_performance" aria-controls="settings_performance" role="tab" data-toggle="tab">Performance</a></li>
 758                                                 <li role="presentation"><a href="#settings_sync" aria-controls="settings_sync" role="tab" data-toggle="tab">Synchronization</a></li>
 759                                                 <li role="presentation"><a href="#settings_visual" aria-controls="settings_visual" role="tab" data-toggle="tab">Visual</a></li>
 760                                         </ul>
 761
 762                                         <!-- Tab panes -->
 763                                         <div class="tab-content">
 764                                                 <div role="tabpanel" class="tab-pane active" id="settings_performance">
 765                                                         <form id="optionsForm1" method="get" class="form-horizontal">
 766                                                                 <div class="form-group">
 767                                                                         <table>
 768                                                                         <tr class="option-row">
 769                                                                                 <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>
 770                                                                                 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
 771                                                                                         <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>
 772                                                                                 </td>
 773                                                                                 </tr>
 774                                                                         <tr class="option-row">
 775                                                                                 <td class="option-control">
 776                                                                                 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
 777                                                                                 </td>
 778                                                                                 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
 779                                                                                         <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>
 780                                                                                 </td>
 781                                                                                 </tr>
 782                                                                         <tr class="option-row">
 783                                                                                 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
 784                                                                                 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
 785                                                                                         <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>
 786                                                                                 </td>
 787                                                                                 </tr>
 788                                                                         </table>
 789                                                                 </div>
 790                                                         </form>
 791                                                 </div>
 792                                                 <div role="tabpanel" class="tab-pane" id="settings_sync">
 793                                                         <form id="optionsForm2" method="get" class="form-horizontal">
 794                                                                 <div class="form-group">
 795                                                                         <table>
 796                                                                         <tr class="option-row">
 797                                                                                 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequential" data-width="110px"></td>
 798                                                                                 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
 799                                                                                         <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>
 800                                                                                 </td>
 801                                                                                 </tr>
 802                                                                         <tr class="option-row" id="concurrent_refreshes_row">
 803                                                                                 <td class="option-control"></td>
 804                                                                                 <td class="option-info">
 805                                                                                         <table>
 806                                                                                         <tr class="option-row">
 807                                                                                         <td class="option-control">
 808                                                                                         <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
 809                                                                                         </td>
 810                                                                                         <td class="option-info">
 811                                                                                         <strong>Shall we re-sync chart refreshes?</strong><br/>
 812                                                                                         <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>
 813                                                                                         </td>
 814                                                                                         </tr>
 815                                                                                         </table>
 816                                                                                 </td>
 817                                                                                 </tr>
 818                                                                         <tr class="option-row">
 819                                                                                 <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>
 820                                                                                 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
 821                                                                                         <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>
 822                                                                                 </td>
 823                                                                                 </tr>
 824                                                                         <tr class="option-row">
 825                                                                                 <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>
 826                                                                                 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
 827                                                                                         <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>
 828                                                                                 </td>
 829                                                                                 </tr>
 830                                                                         </table>
 831                                                                 </div>
 832                                                         </form>
 833                                                 </div>
 834                                                 <div role="tabpanel" class="tab-pane" id="settings_visual">
 835                                                         <form id="optionsForm3" method="get" class="form-horizontal">
 836                                                                 <div class="form-group">
 837                                                                         <table>
 838                                                                         <tr class="option-row">
 839                                                                                 <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>
 840                                                                                 <td class="option-info"><strong>Which theme to use?</strong><br/>
 841                                                                                         <small>Netdata comes with two themes: <b>Dark</b> (the default) and <b>White</b>.
 842                                                                                         <br/>
 843                                                                                         <b>Switching this will reload the dashboard</b>.
 844                                                                                         </small>
 845                                                                                 </td>
 846                                                                                 </tr>
 847                                                                         <tr class="option-row">
 848                                                                                 <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>
 849                                                                                 <td class="option-info"><strong>Do you need help?</strong><br/>
 850                                                                                         <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.
 851                                                                                         <br/>
 852                                                                                         <b>Switching this will reload the dashboard</b>.
 853                                                                                         </small>
 854                                                                                 </td>
 855                                                                                 </tr>
 856                                                                         <tr class="option-row">
 857                                                                                 <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>
 858                                                                                 <td class="option-info"><strong>Enable data padding when panning and zooming?</strong><br/>
 859                                                                                         <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>
 860                                                                                 </td>
 861                                                                                 </tr>
 862                                                                         <tr class="option-row">
 863                                                                                 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle"  data-on="Smooth" data-off="Rough" data-width="110px"></td>
 864                                                                                 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
 865                                                                                         <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.
 866                                                                                         <br/>
 867                                                                                         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>
 868                                                                                 </td>
 869                                                                                 </tr>
 870                                                                         </table>
 871                                                                 </div>
 872                                                         </form>
 873                                                 </div>
 874                                         </div>
 875                                 </div>
 876                                 <div class="modal-footer">
 877                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 878                                 </div>
 879                         </div>
 880                 </div>
 881         </div>
 882
 883
 884         <div class="modal fade" id="updateModal" tabindex="-1" role="dialog" aria-labelledby="updateModalLabel">
 885                 <div class="modal-dialog" role="document">
 886                         <div class="modal-content">
 887                                 <div class="modal-header">
 888                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 889                                         <h4 class="modal-title" id="updateModalLabel">Update Check</h4>
 890                                 </div>
 891                                 <div class="modal-body">
 892                                         Your netdata version: <b><code><span id="netdataVersion">Unknown</span></code></b>
 893                                         <br/>
 894                                         <div style="padding: 10px;"></div>
 895                                         <div id="versionCheckLog">Not checked yet. Please press the Check Now button.</div>
 896                                 </div>
 897                                 <div class="modal-footer">
 898                                         <a href="#" onclick="notifyForUpdate(true); return false;" type="button" class="btn btn-default">Check Now</a>
 899                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 900                                 </div>
 901                         </div>
 902                 </div>
 903         </div>
 904
 905         <div class="modal fade" id="deleteRegistryModal" tabindex="-1" role="dialog" aria-labelledby="deleteRegistryModalLabel">
 906                 <div class="modal-dialog" role="document">
 907                         <div class="modal-content">
 908                                 <div class="modal-header">
 909                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 910                                         <h4 class="modal-title" id="deleteRegistryModalLabel">Delete <span id="deleteRegistryServerName"></span>?</h4>
 911                                 </div>
 912                                 <div class="modal-body">
 913                                         You are about to delete, from your personal list of netdata servers, the following server:
 914                                         <p style="text-align: center; padding-top: 10px; padding-bottom: 10px; line-height: 2;">
 915                                         <b><span id="deleteRegistryServerName2"></span></b>
 916                                         <br/>
 917                                         <b><span id="deleteRegistryServerURL"></span></b>
 918                                         </p>
 919                                         Are you sure you want to do this?
 920                                         <br/>
 921                                         <div style="padding: 10px;"></div>
 922                                         <small>Keep in mind, this server will be added back if and when you visit it again.</small>
 923                                         <br/>
 924                                         <div id="deleteRegistryResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 925                                 </div>
 926                                 <div class="modal-footer">
 927                                         <button type="button" class="btn btn-success" data-dismiss="modal">keep it</button>
 928                                         <a href="#" onclick="notifyForDeleteRegistry(true); return false;" type="button" class="btn btn-danger">delete it</a>
 929                                 </div>
 930                         </div>
 931                 </div>
 932         </div>
 933
 934         <div class="modal fade" id="switchRegistryModal" tabindex="-1" role="dialog" aria-labelledby="switchRegistryModalLabel">
 935                 <div class="modal-dialog" role="document">
 936                         <div class="modal-content">
 937                                 <div class="modal-header">
 938                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 939                                         <h4 class="modal-title" id="switchRegistryModalLabel">Switch Netdata Registry Identity</h4>
 940                                 </div>
 941                                 <div class="modal-body">
 942                                         You can copy and paste the following ID to all your browsers (e.g. work and home).
 943                                         <br/>
 944                                         All the browsers with the same ID will identify <b>you</b>, so please don't share this with others.
 945                                         <p style="text-align: center; padding-top: 10px; padding-bottom: 10px; line-height: 2;">
 946                                         <form action="#">
 947                                         <input type="text" class="form-control" id="switchRegistryPersonGUID" placeholder="your personal ID" maxlength="36" autocomplete="off" style="text-align: center; font-size: 1.4em;">
 948                                         </form>
 949                                         </p>
 950                                         Either copy this ID and paste it to another browser, or paste here the ID you have taken from another browser.
 951                                         <p style="padding-top: 10px;"><small>
 952                                                 Keep in mind that:
 953                                                 <ul>
 954                                                         <li>when you switch ID, your previous ID will be lost forever - this is irreversible.</li>
 955                                                         <li>both IDs (your old and the new) must list this netdata at their personal lists.</li>
 956                                                         <li>both IDs have to be known by the registry: <b><span id="switchRegistryURL"></span></b>.</li>
 957                                                         <li>to get a new ID, just clear your browser cookies.</li>
 958                                                 </ul>
 959                                         </small></p>
 960                                         <div id="switchRegistryResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 961                                 </div>
 962                                 <div class="modal-footer">
 963                                         <button type="button" class="btn btn-success" data-dismiss="modal">cancel</button>
 964                                         <a href="#" onclick="notifyForSwitchRegistry(true); return false;" type="button" class="btn btn-danger">impersonate</a>
 965                                 </div>
 966                         </div>
 967                 </div>
 968         </div>
 969
 970         <div class="modal fade" id="gotoServerModal" tabindex="-1" role="dialog" aria-labelledby="gotoServerModalLabel">
 971                 <div class="modal-dialog" role="document">
 972                         <div class="modal-content">
 973                                 <div class="modal-header">
 974                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 975                                         <h4 class="modal-title" id="gotoServerModalLabel"><span id="gotoServerName"></span></h4>
 976                                 </div>
 977                                 <div class="modal-body">
 978                                         Checking known URLs for this server...
 979                                         <div  style="padding-top: 20px;">
 980                                                 <table id="gotoServerList">
 981                                                 </table>
 982                                         </div>
 983                                         <div id="gotoServerResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 984                                 </div>
 985                                 <div class="modal-footer">
 986                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 987                                 </div>
 988                         </div>
 989                 </div>
 990         </div>
 991
 992 <script>
 993 var this_is_demo = null;
 994 function isdemo() {
 995         if(this_is_demo !== null) return this_is_demo;
 996         this_is_demo = false;
 997
 998         try {
 999                 if(typeof document.location.hostname === 'string') {
1000                         if(document.location.hostname.endsWith('.my-netdata.io') ||
1001                                         document.location.hostname.endsWith('.mynetdata.io') ||
1002                                         document.location.hostname.endsWith('.netdata.rocks') ||
1003                                         document.location.hostname.endsWith('.firehol.org') ||
1004                                         document.location.hostname.endsWith('.netdata.online'))
1005                                         this_is_demo = true;
1006                 }
1007         }
1008         catch(error) {
1009                 ;
1010         }
1011
1012         return this_is_demo;
1013 }
1014
1015 if(isdemo()) {
1016         document.getElementById('masthead').style.display = 'block';
1017 }
1018 var gotoServerValidateRemaining = 0;
1019 function gotoServerValidateUrl(id, guid, url) {
1020         setTimeout(function() {
1021                 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>';
1022                 NETDATA.registry.hello(url, function(data) {
1023                         if (data) {
1024                                 console.log('OK ' + id + ' URL: ' + url);
1025                                 document.getElementById(guid + '-' + id + '-status').innerHTML = "OK";
1026                                 document.location = url;
1027                         }
1028                         else {
1029                                 document.getElementById(guid + '-' + id + '-status').innerHTML = "failed!";
1030                                 gotoServerValidateRemaining--;
1031                                 if(gotoServerValidateRemaining <= 0)
1032                                         document.getElementById('gotoServerResponse').innerHTML = '<b>Sorry! I cannot find any operational URL for this server</b>';
1033                         }
1034                 });
1035         }, id * 50);
1036 }
1037
1038 function gotoServerModalHandler(guid) {
1039         console.log('goto server: ' + guid);
1040
1041         var len = NETDATA.registry.machines[guid].alternate_urls.length;
1042
1043         document.getElementById('gotoServerResponse').innerHTML = '';
1044         document.getElementById('gotoServerList').innerHTML = '';
1045         document.getElementById('gotoServerName').innerHTML = NETDATA.registry.machines[guid].name;
1046         $('#gotoServerModal').modal('show');
1047
1048         gotoServerValidateRemaining = len;
1049         while(len--)
1050                 gotoServerValidateUrl(len, guid, NETDATA.registry.machines[guid].alternate_urls[len]);
1051
1052         return false;
1053 }
1054
1055 function switchRegistryModalHandler() {
1056         document.getElementById('switchRegistryPersonGUID').value = NETDATA.registry.person_guid;
1057         document.getElementById('switchRegistryURL').innerHTML = NETDATA.registry.server;
1058         document.getElementById('switchRegistryResponse').innerHTML = '';
1059         $('#switchRegistryModal').modal('show');
1060 }
1061
1062 function notifyForSwitchRegistry() {
1063         var n = document.getElementById('switchRegistryPersonGUID').value;
1064
1065         if(n !== '' && n.length === 36) {
1066                 NETDATA.registry.switch(n, function(result) {
1067                         if(result !== null) {
1068                                 $('#switchRegistryModal').modal('hide');
1069                                 NETDATA.registry.init();
1070                         }
1071                         else {
1072                                 document.getElementById('switchRegistryResponse').innerHTML = "<b>Sorry! The registry rejected your request.</b>";
1073                         }
1074                 });
1075         }
1076         else
1077                 document.getElementById('switchRegistryResponse').innerHTML = "<b>The ID you have entered is not a GUID.</b>";
1078 }
1079
1080 var deleteRegistryUrl = null;
1081 function deleteRegistryModalHandler(guid, name, url) {
1082         deleteRegistryUrl = url;
1083         document.getElementById('deleteRegistryServerName').innerHTML = name;
1084         document.getElementById('deleteRegistryServerName2').innerHTML = name;
1085         document.getElementById('deleteRegistryServerURL').innerHTML = url;
1086         document.getElementById('deleteRegistryResponse').innerHTML = '';
1087         $('#deleteRegistryModal').modal('show');
1088 }
1089
1090 function notifyForDeleteRegistry() {
1091         if(deleteRegistryUrl) {
1092                 NETDATA.registry.delete(deleteRegistryUrl, function(result) {
1093                         if(result !== null) {
1094                                 deleteRegistryUrl = null;
1095                                 $('#deleteRegistryModal').modal('hide');
1096                                 NETDATA.registry.init();
1097                         }
1098                         else {
1099                                 document.getElementById('deleteRegistryResponse').innerHTML = "<b>Sorry! this command was rejected by the registry server.</b>";
1100                         }
1101                 });
1102         }
1103 }
1104
1105 var options = {
1106         sparklines_registry: {},
1107         submenu_names: {},
1108         data: null,
1109         hostname: 'netdata_server', // will be overwritten by the netdata server
1110         categories: new Array(),
1111         categories_idx: {},
1112         families: new Array(),
1113         families_idx: {},
1114
1115         chartsPerRow: 0,
1116         chartsMinWidth: 1450,
1117         chartsHeight: 180,
1118         sparklinesHeight: 60
1119 };
1120
1121 // generate a sparkline
1122 // used in the documentation
1123 function sparkline(chart, dimension, units) {
1124         var key = chart + '.' + dimension;
1125
1126         if(typeof units === 'undefined')
1127                 units = '';
1128
1129         if(typeof options.sparklines_registry[key] === 'undefined')
1130                 options.sparklines_registry[key] = { count: 1 };
1131         else
1132                 options.sparklines_registry[key].count++;
1133
1134         key = key + '.' + options.sparklines_registry[key].count;
1135
1136         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 + ')';
1137
1138         return h;
1139 }
1140
1141 function chartsPerRow(total) {
1142         if(options.chartsPerRow === 0) {
1143                 width = Math.floor(total / options.chartsMinWidth);
1144                 if(width === 0) width = 1;
1145                 return width;
1146         }
1147         else return options.chartsPerRow;
1148 }
1149
1150 function prioritySort(a, b) {
1151         if(a.priority < b.priority) return -1;
1152         if(a.priority > b.priority) return 1;
1153         if(a.name < b.name) return -1;
1154         return 1;
1155 }
1156
1157 function sortObjectByPriority(object) {
1158         var idx = {};
1159         var sorted = new Array();
1160
1161         for(var i in object) {
1162                 if(typeof idx[i] === 'undefined') {
1163                         idx[i] = object[i];
1164                         sorted.push(i);
1165                 }
1166         }
1167
1168         sorted.sort(function(a, b) {
1169                 if(idx[a].priority < idx[b].priority) return -1;
1170                 if(idx[a].priority > idx[b].priority) return 1;
1171                 if(a < b) return -1;
1172                 return 1;
1173         });
1174
1175         return sorted;
1176 }
1177
1178 // ----------------------------------------------------------------------------
1179
1180 function gaugeChart(title, width, dimensions, colors) {
1181         if(typeof colors === 'undefined')
1182                 colors = '';
1183
1184         if(typeof dimensions === 'undefined')
1185                 dimensions = '';
1186
1187         return '<div data-netdata="CHART_UNIQUE_ID"'
1188                                                         + ' data-dimensions="' + dimensions + '"'
1189                                                         + ' data-chart-library="gauge"'
1190                                                         + ' data-gauge-adjust="width"'
1191                                                         + ' data-title="' + title + '"'
1192                                                         + ' data-width="' + width + '"'
1193                                                         + ' data-before="0"'
1194                                                         + ' data-after="-CHART_DURATION"'
1195                                                         + ' data-points="CHART_DURATION"'
1196                                                         + ' data-colors="' + colors + '"'
1197                                                         + ' role="application"></div>';
1198 }
1199
1200 // ----------------------------------------------------------------------------
1201
1202 var menuData = {
1203         'system': {
1204                 title: 'System Overview',
1205                 info: 'Overview of the key system metrics.'
1206         },
1207
1208         'ap': {
1209                 title: 'Access Points',
1210                 info: undefined
1211         },
1212
1213         'tc': {
1214                 title: 'Quality of Service',
1215                 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).'
1216         },
1217
1218         'net': {
1219                 title: 'Network Interfaces',
1220                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
1221         },
1222
1223         'ipv4': {
1224                 title: 'IPv4 Networking',
1225                 info: undefined
1226         },
1227
1228         'ipv6': {
1229                 title: 'IPv6 Networking',
1230                 info: undefined
1231         },
1232
1233         'ipvs': {
1234                 title: 'IP Virtual Server',
1235                 info: undefined
1236         },
1237
1238         'netfilter': {
1239                 title: 'Firewall (netfilter)',
1240                 info: undefined
1241         },
1242
1243         'cpu': {
1244                 title: 'CPUs',
1245                 info: undefined
1246         },
1247
1248         'mem': {
1249                 title: 'Memory',
1250                 info: undefined
1251         },
1252
1253         'disk': {
1254                 title: 'Disks',
1255                 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.'
1256         },
1257
1258         'sensors': {
1259                 title: 'Sensors',
1260                 info: undefined
1261         },
1262
1263         'nfsd': {
1264                 title: 'File Server (nfsd)',
1265                 info: undefined
1266         },
1267
1268         'apps': {
1269                 title: 'Applications',
1270                 info: 'Per application statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics for applications of interest, defined in <code>/etc/netdata/apps_groups.conf</code> (the default is <a href="https://github.com/firehol/netdata/blob/master/conf.d/apps_groups.conf" target="_blank">here</a>). The plugin internally builds a process tree (much like <code>ps fax</code> does), and groups processes together (evaluating both child and parent processes) so that the result is always a chart with a predefined set of dimensions (of course, only application groups found running are reported).<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
1271                 height: 1.5
1272         },
1273
1274         'users': {
1275                 title: 'Users',
1276                 info: 'Per user statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user.<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
1277                 height: 1.5
1278         },
1279
1280         'groups': {
1281                 title: 'User Groups',
1282                 info: 'Per user group statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user group.<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
1283                 height: 1.5
1284         },
1285
1286         'netdata': {
1287                 title: 'Netdata Monitoring',
1288                 info: undefined
1289         },
1290
1291         'example': {
1292                 title: 'Example Charts',
1293                 info: undefined
1294         },
1295
1296         'cgroup': {
1297                 title: 'Container',
1298                 info: undefined
1299         },
1300
1301         'mysql': {
1302                 title: 'MySQL',
1303                 info: undefined
1304         },
1305
1306         'named': {
1307                 title: 'named',
1308                 info: undefined
1309         },
1310 };
1311
1312 var submenuData = {
1313         'mem.ksm': {
1314                 title: 'Memory Deduper',
1315                 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.'
1316         },
1317
1318         'netfilter.conntrack': {
1319                 title: 'Connection Tracker',
1320                 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.'
1321         },
1322
1323         'netfilter.nfacct': {
1324                 title: 'Bandwidth Accounting',
1325                 info: 'The following information is read using the <code>nfacct.plugin</code>.'
1326         },
1327
1328         'netfilter.synproxy': {
1329                 title: 'DDoS Protection',
1330                 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.'
1331         }
1332 };
1333
1334 var chartData = {
1335         'system.cpu': {
1336                 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.'
1337         },
1338
1339         'system.load': {
1340                 info: 'Current system load read from <code>/proc/loadavg</code>.',
1341                 height: 0.7
1342         },
1343
1344         'system.io': {
1345                 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.'
1346         },
1347
1348         'system.swapio': {
1349                 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).'
1350         },
1351
1352         'system.pgfaults': {
1353                 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.'
1354         },
1355
1356         'system.entropy': {
1357                 colors: '#CC22AA',
1358                 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.'
1359         },
1360
1361         'system.forks': {
1362                 colors: '#5555DD',
1363                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
1364         },
1365
1366         'system.intr': {
1367                 colors: '#DD5555',
1368                 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.'
1369         },
1370
1371         'system.interrupts': {
1372                 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.'
1373         },
1374
1375         'system.softirqs': {
1376                 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.'
1377         },
1378
1379         'system.processes': {
1380                 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.'
1381         },
1382
1383         'system.active_processes': {
1384                 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
1385         },
1386
1387         'system.ctxt': {
1388                 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.'
1389         },
1390
1391         'system.idlejitter': {
1392                 colors: '#5555AA',
1393                 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).'
1394         },
1395
1396         'system.ipv4': {
1397                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>.'
1398         },
1399
1400         'system.ipv6': {
1401                 info: 'Total IPv6 Traffic, read from <code>/proc/net/snmp6</code>.'
1402         },
1403
1404         'system.ram': {
1405                 info: 'System memory, read from <code>/proc/meminfo</code>.'
1406         },
1407
1408         'system.swap': {
1409                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
1410         },
1411
1412         'mem.ksm_savings': {
1413                 heads: [
1414                         gaugeChart('Saved', '12%', 'savings', '#0099CC')
1415                 ]
1416         },
1417
1418         'mem.ksm_ratios': {
1419                 heads: [
1420                         function(id) {
1421                                 return  '<div data-netdata="' + id + '"'
1422                                         + ' data-gauge-max-value="100"'
1423                                         + ' data-chart-library="gauge"'
1424                                         + ' data-title="Savings"'
1425                                         + ' data-units="percentage %"'
1426                                         + ' data-gauge-adjust="width"'
1427                                         + ' data-width="12%"'
1428                                         + ' data-before="0"'
1429                                         + ' data-after="-CHART_DURATION"'
1430                                         + ' data-points="CHART_DURATION"'
1431                                         + ' role="application"></div>';
1432                         }
1433                 ]
1434         },
1435
1436         'mem.committed': {
1437                 colors: NETDATA.colors[3]
1438         },
1439
1440         'apps.cpu': {
1441                 height: 2.0
1442         },
1443
1444         'apps.preads': {
1445                 height: 2.0
1446         },
1447
1448         'apps.pwrites': {
1449                 height: 2.0
1450         },
1451
1452         'users.cpu': {
1453                 height: 2.0
1454         },
1455
1456         'users.preads': {
1457                 height: 2.0
1458         },
1459
1460         'users.pwrites': {
1461                 height: 2.0
1462         },
1463
1464         'groups.cpu': {
1465                 height: 2.0
1466         },
1467
1468         'groups.preads': {
1469                 height: 2.0
1470         },
1471
1472         'groups.pwrites': {
1473                 height: 2.0
1474         },
1475
1476         'tc.qos': {
1477                 heads: [
1478                         function(id) {
1479                                 if(id.match(/.*-ifb$/))
1480                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
1481                                 else
1482                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
1483                         }
1484                 ]
1485         },
1486
1487         'net.net': {
1488                 heads: [
1489                         gaugeChart('Received', '12%', 'received'),
1490                         gaugeChart('Sent', '12%', 'sent')
1491                 ]
1492         },
1493
1494         'disk.util': {
1495                 colors: '#FF5588',
1496                 heads: [
1497                         gaugeChart('Utilization', '12%', '', '#FF5588')
1498                 ],
1499                 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.'
1500         },
1501
1502         'disk.backlog': {
1503                 colors: '#0099CC',
1504                 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.'
1505         },
1506
1507         'disk.io': {
1508                 heads: [
1509                         gaugeChart('Read', '12%', 'reads'),
1510                         gaugeChart('Write', '12%', 'writes')
1511                 ],
1512                 info: 'Amount of data transferred to and from disk.'
1513         },
1514
1515         'disk.ops': {
1516                 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).'
1517         },
1518
1519         'disk.qops': {
1520                 info: 'I/O operations currently in progress. This metric is a snapshot - it is not an average over the last interval.'
1521         },
1522
1523         'netfilter.sockets': {
1524                 colors: '#88AA00',
1525                 heads: [
1526                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1527                 ]
1528         },
1529
1530         'netfilter.new': {
1531                 heads: [
1532                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1533                 ]
1534         },
1535
1536         'disk.iotime': {
1537                 height: 0.5,
1538                 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.'
1539         },
1540         'disk.mops': {
1541                 height: 0.5,
1542                 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.'
1543         },
1544         'disk.svctm': {
1545                 height: 0.5,
1546                 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.'
1547         },
1548         'disk.avgsz': {
1549                 height: 0.5,
1550                 info: 'The average I/O operation size.'
1551         },
1552         'disk.await': {
1553                 height: 0.5,
1554                 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.'
1555         },
1556
1557         'disk.space': {
1558                 info: 'Disk space utilization. reserved for root is automatically reserved by the system to prevent the root user from getting out of space.'
1559         },
1560         'disk.inodes': {
1561                 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.'
1562         },
1563         'apache.connections': {
1564                 colors: NETDATA.colors[4],
1565                 mainheads: [
1566                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1567                 ]
1568         },
1569
1570         'apache.requests': {
1571                 colors: NETDATA.colors[0],
1572                 mainheads: [
1573                         gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1574                 ]
1575         },
1576
1577         'apache.net': {
1578                 colors: NETDATA.colors[3],
1579                 mainheads: [
1580                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1581                 ]
1582         },
1583
1584         'apache.workers': {
1585                 mainheads: [
1586                         function(id) {
1587                                 return  '<div data-netdata="' + id + '"'
1588                                         + ' data-dimensions="busy"'
1589                                         + ' data-append-options="percentage"'
1590                                         + ' data-gauge-max-value="100"'
1591                                         + ' data-chart-library="gauge"'
1592                                         + ' data-title="Workers Utilization"'
1593                                         + ' data-units="percentage %"'
1594                                         + ' data-gauge-adjust="width"'
1595                                         + ' data-width="12%"'
1596                                         + ' data-before="0"'
1597                                         + ' data-after="-CHART_DURATION"'
1598                                         + ' data-points="CHART_DURATION"'
1599                                         + ' role="application"></div>';
1600                         }
1601                 ]
1602         },
1603
1604         'apache.bytesperreq': {
1605                 colors: NETDATA.colors[3],
1606                 height: 0.5
1607         },
1608
1609         'apache.reqpersec': {
1610                 colors: NETDATA.colors[4],
1611                 height: 0.5
1612         },
1613
1614         'apache.bytespersec': {
1615                 colors: NETDATA.colors[6],
1616                 height: 0.5
1617         },
1618
1619         'nginx.connections': {
1620                 colors: NETDATA.colors[4],
1621                 mainheads: [
1622                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1623                 ]
1624         },
1625
1626         'nginx.requests': {
1627                 colors: NETDATA.colors[0],
1628                 mainheads: [
1629                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1630                 ]
1631         }
1632 };
1633
1634 function anyAttribute(obj, attr, key, def) {
1635         if(typeof obj[key] !== 'undefined') {
1636                 if(typeof obj[key][attr] !== 'undefined')
1637                         return obj[key][attr];
1638         }
1639         return def;
1640 }
1641
1642 function menuTitle(chart) {
1643         if(typeof chart.menu_pattern !== 'undefined') {
1644                 return anyAttribute(menuData, 'title', chart.menu_pattern, chart.menu_pattern).toString()
1645                                 + ': ' + chart.type.slice(-(chart.type.length - chart.menu_pattern.length - 1)).toString();
1646         }
1647
1648         return anyAttribute(menuData, 'title', chart.menu, chart.menu);
1649 }
1650
1651 function menuInfo(menu) {
1652         return anyAttribute(menuData, 'info', menu, null);
1653 }
1654
1655 function menuHeight(menu, relative) {
1656         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1657 }
1658
1659 function submenuTitle(menu, submenu) {
1660         var key = menu + '.' + submenu;
1661         return anyAttribute(submenuData, 'title', key, submenu);
1662 }
1663
1664 function submenuInfo(menu, submenu) {
1665         var key = menu + '.' + submenu;
1666         return anyAttribute(submenuData, 'info', key, null);
1667 }
1668
1669 function submenuHeight(menu, submenu, relative) {
1670         var key = menu + '.' + submenu;
1671         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1672 }
1673
1674
1675 function chartInfo(id) {
1676         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1677                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1678         else
1679                 return '';
1680 }
1681
1682 function chartHeight(id, def) {
1683         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1684                 return def * chartData[id].height;
1685         else
1686                 return def;
1687 }
1688
1689
1690 // ----------------------------------------------------------------------------
1691
1692 // enrich the data structure returned by netdata
1693 // to reflect our menu system and content
1694 function enrichChartData(chart) {
1695         var tmp = chart.type.split('_')[0];
1696
1697         switch(tmp) {
1698                 case 'ap':
1699                 case 'net':
1700                 case 'disk':
1701                         chart.menu = tmp;
1702                         break;
1703
1704                 case 'mysql':
1705                 case 'named':
1706                 case 'cgroup':
1707                         chart.menu = chart.type;
1708                         chart.menu_pattern = tmp;
1709                         break;
1710
1711                 case 'tc':
1712                         chart.menu = tmp;
1713
1714                         // find a name for this device from fireqos info
1715                         // we strip '_(in|out)' or '(in|out)_'
1716                         if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family) {
1717                                 var n = chart.name.split('.')[1];
1718                                 if(n.endsWith('_in'))
1719                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_in'));
1720                                 else if(n.endsWith('_out'))
1721                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_out'));
1722                                 else if(n.startsWith('in_'))
1723                                         options.submenu_names[chart.family] = n.slice(3, n.length);
1724                                 else if(n.startsWith('out_'))
1725                                         options.submenu_names[chart.family] = n.slice(4, n.length);
1726                         }
1727
1728                         // increase the priority of IFB devices
1729                         // to have inbound appear before outbound
1730                         if(chart.id.match(/.*-ifb$/))
1731                                 chart.priority--;
1732
1733                         break;
1734
1735                 default:
1736                         chart.menu = chart.type;
1737                         break;
1738         }
1739
1740         chart.submenu = chart.family;
1741 }
1742
1743 // ----------------------------------------------------------------------------
1744
1745 function name2id(s) {
1746         return s
1747                 .replace(/ /g, '_')
1748                 .replace(/\(/g, '_')
1749                 .replace(/\)/g, '_')
1750                 .replace(/\./g, '_')
1751                 .replace(/\//g, '_');
1752 }
1753
1754 function headMain(charts, duration) {
1755         var head = '';
1756
1757         if(typeof charts['system.swap'] !== 'undefined')
1758                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1759                 + ' data-dimensions="free"'
1760                 + ' data-append-options="percentage"'
1761                 + ' data-chart-library="easypiechart"'
1762                 + ' data-title="Free Swap"'
1763                 + ' data-units="%"'
1764                 + ' data-easypiechart-max-value="100"'
1765                 + ' data-width="8%"'
1766                 + ' data-before="0"'
1767                 + ' data-after="-' + duration.toString() + '"'
1768                 + ' data-points="' + duration.toString() + '"'
1769                 + ' data-colors="#DD4400"'
1770                 + ' role="application"></div>';
1771
1772         if(typeof charts['system.io'] !== 'undefined') {
1773                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1774                 + ' data-dimensions="in"'
1775                 + ' data-chart-library="easypiechart"'
1776                 + ' data-title="Disk Read"'
1777                 + ' data-units="KB / s"'
1778                 + ' data-width="10%"'
1779                 + ' data-before="0"'
1780                 + ' data-after="-' + duration.toString() + '"'
1781                 + ' data-points="' + duration.toString() + '"'
1782                 + ' role="application"></div>';
1783
1784                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1785                 + ' data-dimensions="out"'
1786                 + ' data-chart-library="easypiechart"'
1787                 + ' data-title="Disk Write"'
1788                 + ' data-units="KB / s"'
1789                 + ' data-width="10%"'
1790                 + ' data-before="0"'
1791                 + ' data-after="-' + duration.toString() + '"'
1792                 + ' data-points="' + duration.toString() + '"'
1793                 + ' role="application"></div>';
1794         }
1795
1796         if(typeof charts['system.cpu'] !== 'undefined')
1797                 head += '<div data-netdata="system.cpu"'
1798                 + ' data-chart-library="gauge"'
1799                 + ' data-title="CPU"'
1800                 + ' data-units="%"'
1801                 + ' data-gauge-max-value="100"'
1802                 + ' data-width="18%"'
1803                 + ' data-after="-' + duration.toString() + '"'
1804                 + ' data-points="' + duration.toString() + '"'
1805                 + ' data-colors="' + NETDATA.colors[12] + '"'
1806                 + ' role="application"></div>';
1807
1808         if(typeof charts['system.ipv4'] !== 'undefined') {
1809                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1810                 + ' data-dimensions="received"'
1811                 + ' data-chart-library="easypiechart"'
1812                 + ' data-title="IPv4 Inbound"'
1813                 + ' data-units="kbps"'
1814                 + ' data-width="10%"'
1815                 + ' data-before="0"'
1816                 + ' data-after="-' + duration.toString() + '"'
1817                 + ' data-points="' + duration.toString() + '"'
1818                 + ' role="application"></div>';
1819
1820                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1821                 + ' data-dimensions="sent"'
1822                 + ' data-chart-library="easypiechart"'
1823                 + ' data-title="IPv4 Outbound"'
1824                 + ' data-units="kbps"'
1825                 + ' data-width="10%"'
1826                 + ' data-before="0"'
1827                 + ' data-after="-' + duration.toString() + '"'
1828                 + ' data-points="' + duration.toString() + '"'
1829                 + ' role="application"></div>';
1830         }
1831         else if(typeof charts['system.ipv6'] !== 'undefined') {
1832                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1833                 + ' data-dimensions="received"'
1834                 + ' data-chart-library="easypiechart"'
1835                 + ' data-title="IPv6 Inbound"'
1836                 + ' data-units="kbps"'
1837                 + ' data-width="10%"'
1838                 + ' data-before="0"'
1839                 + ' data-after="-' + duration.toString() + '"'
1840                 + ' data-points="' + duration.toString() + '"'
1841                 + ' role="application"></div>';
1842
1843                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1844                 + ' data-dimensions="sent"'
1845                 + ' data-chart-library="easypiechart"'
1846                 + ' data-title="IPv6 Outbound"'
1847                 + ' data-units="kbps"'
1848                 + ' data-width="10%"'
1849                 + ' data-before="0"'
1850                 + ' data-after="-' + duration.toString() + '"'
1851                 + ' data-points="' + duration.toString() + '"'
1852                 + ' role="application"></div>';
1853         }
1854
1855         if(typeof charts['system.ram'] !== 'undefined')
1856                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1857                 + ' data-dimensions="cached|free"'
1858                 + ' data-append-options="percentage"'
1859                 + ' data-chart-library="easypiechart"'
1860                 + ' data-title="Available RAM"'
1861                 + ' data-units="%"'
1862                 + ' data-easypiechart-max-value="100"'
1863                 + ' data-width="8%"'
1864                 + ' data-after="-' + duration.toString() + '"'
1865                 + ' data-points="' + duration.toString() + '"'
1866                 + ' data-colors="' + NETDATA.colors[7] + '"'
1867                 + ' role="application"></div>';
1868
1869         return head;
1870 }
1871
1872 function generateHeadCharts(type, chart, duration) {
1873         var head = '';
1874         var hcharts = anyAttribute(chartData, type, chart.context, []);
1875         if(hcharts.length > 0) {
1876                 var hi = 0, hlen = hcharts.length;
1877                 while(hi < hlen) {
1878                         if(typeof hcharts[hi] === 'function')
1879                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1880                         else
1881                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1882                         hi++;
1883                 }
1884         }
1885         return head;
1886 }
1887
1888 function renderPage(menus, data) {
1889         var div = document.getElementById('charts_div');
1890         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
1891
1892         // find the proper duration for per-second updates
1893         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
1894         var html = '';
1895         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
1896         var mainhead = headMain(data.charts, duration);
1897
1898         // sort the menus
1899         var main = sortObjectByPriority(menus);
1900         var i = 0, len = main.length;
1901         while(i < len) {
1902                 var menu = main[i++];
1903
1904                 // generate an entry at the main menu
1905
1906                 var menuid = name2id(menu);
1907                 sidebar += '<li class=""><a href="#' + menuid + '">' + menus[menu].title + '</a><ul class="nav">';
1908                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menuid + '" role="heading">' + menus[menu].title + '</h1></div><div id="menu_' + menuid + '" role="document">';
1909
1910                 if(menus[menu].info !== null)
1911                         html += menus[menu].info;
1912
1913                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
1914
1915                 var shtml = '';
1916                 var mhead = '<div class="netdata-chart-row">' + mainhead;
1917                 mainhead = '';
1918
1919                 // sort the submenus of this menu
1920                 var sub = sortObjectByPriority(menus[menu].submenus);
1921                 var si = 0, slen = sub.length;
1922                 while(si < slen) {
1923                         var submenu = sub[si++];
1924
1925                         // generate an entry at the submenu
1926                         var submenuid = name2id(menu + '_' + submenu);
1927                         sidebar += '<li class><a href="#' + submenuid + '">' + menus[menu].submenus[submenu].title + '</a></li>';
1928                         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>';
1929
1930                         if(menus[menu].submenus[submenu].info !== null)
1931                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
1932
1933                         var head = '<div class="netdata-chart-row">';
1934                         var chtml = '';
1935
1936                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
1937
1938                         // sort the charts in this submenu of this menu
1939                         menus[menu].submenus[submenu].charts.sort(prioritySort);
1940                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
1941                         while(ci < clen) {
1942                                 var chart = menus[menu].submenus[submenu].charts[ci++];
1943
1944                                 // generate the submenu heading charts
1945                                 mhead += generateHeadCharts('mainheads', chart, duration);
1946                                 head += generateHeadCharts('heads', chart, duration);
1947
1948                                 // generate the chart
1949                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
1950                                         + ' data-width="' + pcent_width.toString() + '%"'
1951                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
1952                                         + ' data-before="0"'
1953                                         + ' data-after="-' + duration.toString() + '"'
1954                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
1955                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
1956                                         + ' role="application"></div>';
1957
1958                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
1959                         }
1960
1961                         head += '</div>';
1962                         shtml += head + chtml + '</div>';
1963                 }
1964
1965                 mhead += '</div>';
1966                 sidebar += '</ul></li>';
1967                 html += mhead + shtml + '</div></div><hr role="separator"/>';
1968         }
1969
1970         sidebar += '</ul>';
1971         div.innerHTML = html;
1972         document.getElementById('sidebar').innerHTML = sidebar;
1973         finalizePage();
1974 }
1975
1976 function renderChartsAndMenu(data) {
1977         var menus = {};
1978         var charts = data.charts;
1979
1980         for(var c in charts) {
1981                 enrichChartData(charts[c]);
1982
1983                 // create the menu
1984                 if(typeof menus[charts[c].menu] === 'undefined') {
1985                         menus[charts[c].menu] = {
1986                                 priority: charts[c].priority,
1987                                 submenus: {},
1988                                 title: menuTitle(charts[c]),
1989                                 info: menuInfo(charts[c].menu),
1990                                 height: menuHeight(charts[c].menu, options.chartsHeight)
1991                         };
1992                 }
1993
1994                 if(charts[c].priority < menus[charts[c].menu].priority)
1995                         menus[charts[c].menu].priority = charts[c].priority;
1996
1997                 // create the submenu
1998                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
1999                         menus[charts[c].menu].submenus[charts[c].submenu] = {
2000                                 priority: charts[c].priority,
2001                                 charts: new Array(),
2002                                 title: null,
2003                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
2004                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
2005                         };
2006                 }
2007
2008                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
2009                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
2010
2011                 // index the chart in the menu/submenu
2012                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
2013         }
2014
2015         // propagate the descriptive subname given to QoS
2016         // to all the other submenus with the same name
2017         for(var m in menus) {
2018                 for(var s in menus[m].submenus) {
2019                         // set the family using a name
2020                         if(typeof options.submenu_names[s] !== 'undefined') {
2021                                 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
2022                         }
2023                         else {
2024                                 menus[m].submenus[s].title = submenuTitle(m, s);
2025                         }
2026                 }
2027         }
2028
2029         renderPage(menus, data);
2030 }
2031
2032 function downloadAllCharts(netdata_url) {
2033         if(typeof netdata_url === 'undefined' || netdata_url === null)
2034                 netdata_url = NETDATA.serverDefault;
2035
2036         NETDATA.pause(function() {
2037
2038                 // download all the charts the server knows
2039                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
2040
2041                         options.data = data;
2042                         options.hostname = data.hostname;
2043                         document.getElementById('hostname').innerHTML = options.hostname;
2044                         document.getElementById('hostname').href = NETDATA.serverDefault;
2045                         document.title = options.hostname + ' dashboard';
2046
2047                         renderChartsAndMenu(data);
2048
2049                         // prepare our DOM
2050 //                      prepareScreen(data);
2051
2052                         // due to affix issues, prepareScreen() will unpause
2053                         // netdata as needed
2054                 });
2055         });
2056 }
2057
2058 // ----------------------------------------------------------------------------
2059
2060 function versionLog(msg) {
2061         document.getElementById('versionCheckLog').innerHTML = msg;
2062 }
2063
2064 function getNetdataVersion(callback) {
2065         versionLog('Downloading installed version info from netdata...');
2066
2067         $.ajax({
2068                 url: 'version.txt',
2069                 async: true,
2070                 cache: false
2071         })
2072         .done(function(data) {
2073                 data = data.replace(/(\r\n|\n|\r| |\t)/gm,"");
2074                 if(data.length !== 40) {
2075                         versionLog('Received version string is invalid.');
2076                         callback(null);
2077                 }
2078                 else {
2079                         versionLog('Installed version of netdata is ' + data);
2080                         document.getElementById('netdataVersion').innerHTML = data;
2081                         callback(data);
2082                 }
2083         })
2084         .fail(function() {
2085                 versionLog('Failed to download installed version info from netdata!');
2086                 callback(null);
2087         });
2088 }
2089
2090 function getGithubLatestCommit(callback) {
2091         versionLog('Downloading latest version info from github...');
2092
2093         $.ajax({
2094                 url: 'https://api.github.com/repos/firehol/netdata/commits',
2095                 async: true,
2096                 cache: false
2097         })
2098         .done(function(data) {
2099                 versionLog('Latest version info from github is ' + data[0].sha);
2100                 callback(data[0].sha);
2101         })
2102         .fail(function() {
2103                 versionLog('Failed to download installed version info from github!');
2104                 callback(null);
2105         });
2106 }
2107
2108 function checkForUpdate(callback) {
2109         getNetdataVersion(function(sha1) {
2110                 if(sha1 === null) callback(null, null);
2111
2112                 getGithubLatestCommit(function(sha2) {
2113                         callback(sha1, sha2);
2114                 });
2115         });
2116
2117         return null;
2118 }
2119
2120 var updateBlinkCounter = 0;
2121 function notifyForUpdate(force) {
2122         versionLog('<p>checking for updates...</p>');
2123
2124         var now = new Date().getTime();
2125
2126         if(typeof force === 'undefined' || force !== true) {
2127                 var last = loadLocalStorage('last_update_check');
2128
2129                 if(typeof last === 'string')
2130                         last = parseInt(last);
2131                 else
2132                         last = 0;
2133
2134                 if(now - last < 3600000 * 8) {
2135                         // no need to check it - too soon
2136                         return;
2137                 }
2138         }
2139
2140         checkForUpdate(function(sha1, sha2) {
2141                 var save = false;
2142
2143                 if(sha1 === null) {
2144                         save = false;
2145                         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>');
2146                 }
2147                 else if(sha2 === null) {
2148                         save = false;
2149                         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>');
2150                 }
2151                 else if(sha1 === sha2) {
2152                         save = true;
2153                         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>');
2154                 }
2155                 else {
2156                         save = true;
2157                         var compare = 'https://github.com/firehol/netdata/compare/' + sha1.toString() + '...' + sha2.toString();
2158
2159                         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>');
2160
2161                         function updateButtonBlink() {
2162                                 updateBlinkCounter--;
2163                                 if(updateBlinkCounter > 0)
2164                                         $('#updateButton').fadeOut(500).fadeIn(500, updateButtonBlink);
2165                         }
2166
2167                         if(updateBlinkCounter === 0) {
2168                                 updateBlinkCounter = 300;
2169                                 updateButtonBlink();
2170                         }
2171                 }
2172
2173                 if(save)
2174                         saveLocalStorage('last_update_check', now.toString());
2175         });
2176 }
2177
2178 // ----------------------------------------------------------------------------
2179
2180 function getUrlParameter(sParam) {
2181     var sPageURL = decodeURIComponent(window.location.search.substring(1)),
2182         sURLVariables = sPageURL.split('&'),
2183         sParameterName,
2184         i;
2185
2186     for (i = 0; i < sURLVariables.length; i++) {
2187         sParameterName = sURLVariables[i].split('=');
2188
2189         if (sParameterName[0] === sParam) {
2190             return sParameterName[1] === undefined ? true : sParameterName[1];
2191         }
2192     }
2193 }
2194
2195 function finalizePage() {
2196         // resize all charts - without starting the background thread
2197         // this has to be done while NETDATA is paused
2198         // if we ommit this, the affix menu will be wrong, since all
2199         // the Dom elements are initially zero-sized
2200         NETDATA.parseDom();
2201
2202         var before = 0, after = 0, nowelcome = 0;
2203         after = getUrlParameter('force_after_ms');
2204         before = getUrlParameter('force_before_ms');
2205         nowelcome = (getUrlParameter('nowelcome') === true)?true:false;
2206
2207         if(before > 0 && after > 0) {
2208                 nowelcome = true;
2209                 NETDATA.globalPanAndZoom.setMaster(NETDATA.options.targets[0], after, before);
2210         }
2211
2212         // let it run (update the charts)
2213         NETDATA.unpause();
2214
2215         // check if we have to jump to a specific section
2216         var hash = location.hash.replace('#','');
2217         if(hash != '') {
2218                 // Clear the hash in the URL
2219                 // location.hash = '';   // delete front "//" if you want to change the address bar
2220                 var offset = $(location.hash).offset();
2221                 if(typeof offset !== 'undefined')
2222                         $('html, body').animate({ scrollTop: offset.top }, 0);
2223         }
2224
2225         /* activate bootstrap sidebar (affix) */
2226         $('#sidebar').affix({
2227                 offset: {
2228                         top: (isdemo())?150:0,
2229                         bottom: 0
2230                 }
2231         });
2232
2233         /* fix scrolling of very long affix lists
2234            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
2235          */
2236         $('#sidebar').on('affixed.bs.affix', function() {
2237                 $(this).removeAttr('style');
2238         });
2239
2240         /* activate bootstrap scrollspy (needed for sidebar) */
2241         $(document.body).scrollspy({
2242                 target: '#sidebar',
2243                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
2244         });
2245
2246         document.getElementById('footer').style.display = 'block';
2247
2248
2249         var update_options_modal = function() {
2250                 // console.log('update_options_modal');
2251
2252                 var sync_option = function(option) {
2253                         var self = $('#' + option);
2254
2255                         if(self.prop('checked') !== NETDATA.getOption(option)) {
2256                                 // console.log('switching ' + option.toString());
2257                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
2258                         }
2259                 }
2260
2261                 var theme_sync_option = function(option) {
2262                         var self = $('#' + option);
2263
2264                         self.bootstrapToggle(netdataTheme === 'slate'?'on':'off');
2265                 }
2266
2267                 sync_option('eliminate_zero_dimensions');
2268                 sync_option('destroy_on_hide');
2269                 sync_option('parallel_refresher');
2270                 sync_option('concurrent_refreshes');
2271                 sync_option('sync_selection');
2272                 sync_option('sync_pan_and_zoom');
2273                 sync_option('stop_updates_when_focus_is_lost');
2274                 sync_option('smooth_plot');
2275                 sync_option('pan_and_zoom_data_padding');
2276                 sync_option('show_help');
2277                 theme_sync_option('netdata_theme_control');
2278
2279                 if(NETDATA.getOption('parallel_refresher') === false) {
2280                         $('#concurrent_refreshes_row').hide();
2281                 }
2282                 else {
2283                         $('#concurrent_refreshes_row').show();
2284                 }
2285         };
2286         NETDATA.setOption('setOptionCallback', update_options_modal);
2287
2288         // handle options changes
2289         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
2290         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
2291         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
2292         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
2293         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
2294         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
2295         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
2296         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
2297         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
2298         $('#show_help').change(function()                       { NETDATA.setOption('show_help', $(this).prop('checked')); location.reload(); });
2299
2300         // this has to be the last
2301         // it reloads the page
2302         $('#netdata_theme_control').change(function() {
2303                 if(setTheme($(this).prop('checked')?'slate':'white'))
2304                         location.reload();
2305         });
2306
2307         $('#updateModal').on('shown.bs.modal', function() {
2308                 notifyForUpdate(true);
2309         });
2310
2311         $('#deleteRegistryModal').on('hidden.bs.modal', function() {
2312                 deleteRegistryGuid = null;
2313         });
2314
2315         if(isdemo()) {
2316                 if(!nowelcome) {
2317                         setTimeout(function() {
2318                                 $('#welcomeModal').modal();
2319                         }, 1000);
2320                 }
2321
2322                 // google analytics when this is used for the home page of the demo sites
2323                 // this does not run on user's installations
2324                 setTimeout(function() {
2325                         (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
2326                         (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
2327                         m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
2328                         })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
2329
2330                         ga('create', 'UA-64295674-3', 'auto');
2331                         ga('send', 'pageview');
2332                 }, 2000);
2333         }
2334         else notifyForUpdate();
2335 }
2336
2337 function resetDashboardOptions() {
2338         var help = NETDATA.options.current.show_help;
2339
2340         NETDATA.resetOptions();
2341         if(setTheme('slate'))
2342                 location.reload();
2343
2344         if(help !== NETDATA.options.current.show_help)
2345                 location.reload();
2346 }
2347
2348 downloadAllCharts();
2349
2350 </script>
2351
2352 </body>
2353 </html>