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                                         <p style="padding-top: 10px;"><small>
 984                                                 Checks may fail if you are viewing an HTTPS page and the server to be checked is HTTP only.
 985                                         </small></p>
 986                                         <div id="gotoServerResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
 987                                 </div>
 988                                 <div class="modal-footer">
 989                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 990                                 </div>
 991                         </div>
 992                 </div>
 993         </div>
 994
 995 <script>
 996 var this_is_demo = null;
 997 function isdemo() {
 998         if(this_is_demo !== null) return this_is_demo;
 999         this_is_demo = false;
1000
1001         try {
1002                 if(typeof document.location.hostname === 'string') {
1003                         if(document.location.hostname.endsWith('.my-netdata.io') ||
1004                                         document.location.hostname.endsWith('.mynetdata.io') ||
1005                                         document.location.hostname.endsWith('.netdata.rocks') ||
1006                                         document.location.hostname.endsWith('.firehol.org') ||
1007                                         document.location.hostname.endsWith('.netdata.online'))
1008                                         this_is_demo = true;
1009                 }
1010         }
1011         catch(error) {
1012                 ;
1013         }
1014
1015         return this_is_demo;
1016 }
1017
1018 if(isdemo()) {
1019         document.getElementById('masthead').style.display = 'block';
1020 }
1021 var gotoServerValidateRemaining = 0;
1022 function gotoServerValidateUrl(id, guid, url) {
1023         var penaldy = 0;
1024         if(document.location.toString().startsWith('http://') && url.toString().startsWith('https://'))
1025                         // we penalize https only if the current url is http
1026                         // to allow the user walk through all its servers.
1027                         penaldy = 500;
1028
1029         setTimeout(function() {
1030                 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>';
1031                 NETDATA.registry.hello(url, function(data) {
1032                         if (data) {
1033                                 console.log('OK ' + id + ' URL: ' + url);
1034                                 document.getElementById(guid + '-' + id + '-status').innerHTML = "OK";
1035                                 document.location = url;
1036                         }
1037                         else {
1038                                 document.getElementById(guid + '-' + id + '-status').innerHTML = "failed!";
1039                                 gotoServerValidateRemaining--;
1040                                 if(gotoServerValidateRemaining <= 0)
1041                                         document.getElementById('gotoServerResponse').innerHTML = '<b>Sorry! I cannot find any operational URL for this server</b>';
1042                         }
1043                 });
1044         }, (id * 50) + penaldy);
1045 }
1046
1047 function gotoServerModalHandler(guid) {
1048         console.log('goto server: ' + guid);
1049
1050         var len = NETDATA.registry.machines[guid].alternate_urls.length;
1051
1052         document.getElementById('gotoServerResponse').innerHTML = '';
1053         document.getElementById('gotoServerList').innerHTML = '';
1054         document.getElementById('gotoServerName').innerHTML = NETDATA.registry.machines[guid].name;
1055         $('#gotoServerModal').modal('show');
1056
1057         gotoServerValidateRemaining = len;
1058         while(len--)
1059                 gotoServerValidateUrl(len, guid, NETDATA.registry.machines[guid].alternate_urls[len]);
1060
1061         return false;
1062 }
1063
1064 function switchRegistryModalHandler() {
1065         document.getElementById('switchRegistryPersonGUID').value = NETDATA.registry.person_guid;
1066         document.getElementById('switchRegistryURL').innerHTML = NETDATA.registry.server;
1067         document.getElementById('switchRegistryResponse').innerHTML = '';
1068         $('#switchRegistryModal').modal('show');
1069 }
1070
1071 function notifyForSwitchRegistry() {
1072         var n = document.getElementById('switchRegistryPersonGUID').value;
1073
1074         if(n !== '' && n.length === 36) {
1075                 NETDATA.registry.switch(n, function(result) {
1076                         if(result !== null) {
1077                                 $('#switchRegistryModal').modal('hide');
1078                                 NETDATA.registry.init();
1079                         }
1080                         else {
1081                                 document.getElementById('switchRegistryResponse').innerHTML = "<b>Sorry! The registry rejected your request.</b>";
1082                         }
1083                 });
1084         }
1085         else
1086                 document.getElementById('switchRegistryResponse').innerHTML = "<b>The ID you have entered is not a GUID.</b>";
1087 }
1088
1089 var deleteRegistryUrl = null;
1090 function deleteRegistryModalHandler(guid, name, url) {
1091         deleteRegistryUrl = url;
1092         document.getElementById('deleteRegistryServerName').innerHTML = name;
1093         document.getElementById('deleteRegistryServerName2').innerHTML = name;
1094         document.getElementById('deleteRegistryServerURL').innerHTML = url;
1095         document.getElementById('deleteRegistryResponse').innerHTML = '';
1096         $('#deleteRegistryModal').modal('show');
1097 }
1098
1099 function notifyForDeleteRegistry() {
1100         if(deleteRegistryUrl) {
1101                 NETDATA.registry.delete(deleteRegistryUrl, function(result) {
1102                         if(result !== null) {
1103                                 deleteRegistryUrl = null;
1104                                 $('#deleteRegistryModal').modal('hide');
1105                                 NETDATA.registry.init();
1106                         }
1107                         else {
1108                                 document.getElementById('deleteRegistryResponse').innerHTML = "<b>Sorry! this command was rejected by the registry server.</b>";
1109                         }
1110                 });
1111         }
1112 }
1113
1114 var options = {
1115         sparklines_registry: {},
1116         submenu_names: {},
1117         data: null,
1118         hostname: 'netdata_server', // will be overwritten by the netdata server
1119         categories: new Array(),
1120         categories_idx: {},
1121         families: new Array(),
1122         families_idx: {},
1123
1124         chartsPerRow: 0,
1125         chartsMinWidth: 1450,
1126         chartsHeight: 180,
1127         sparklinesHeight: 60
1128 };
1129
1130 // generate a sparkline
1131 // used in the documentation
1132 function sparkline(chart, dimension, units) {
1133         var key = chart + '.' + dimension;
1134
1135         if(typeof units === 'undefined')
1136                 units = '';
1137
1138         if(typeof options.sparklines_registry[key] === 'undefined')
1139                 options.sparklines_registry[key] = { count: 1 };
1140         else
1141                 options.sparklines_registry[key].count++;
1142
1143         key = key + '.' + options.sparklines_registry[key].count;
1144
1145         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 + ')';
1146
1147         return h;
1148 }
1149
1150 function chartsPerRow(total) {
1151         if(options.chartsPerRow === 0) {
1152                 width = Math.floor(total / options.chartsMinWidth);
1153                 if(width === 0) width = 1;
1154                 return width;
1155         }
1156         else return options.chartsPerRow;
1157 }
1158
1159 function prioritySort(a, b) {
1160         if(a.priority < b.priority) return -1;
1161         if(a.priority > b.priority) return 1;
1162         if(a.name < b.name) return -1;
1163         return 1;
1164 }
1165
1166 function sortObjectByPriority(object) {
1167         var idx = {};
1168         var sorted = new Array();
1169
1170         for(var i in object) {
1171                 if(typeof idx[i] === 'undefined') {
1172                         idx[i] = object[i];
1173                         sorted.push(i);
1174                 }
1175         }
1176
1177         sorted.sort(function(a, b) {
1178                 if(idx[a].priority < idx[b].priority) return -1;
1179                 if(idx[a].priority > idx[b].priority) return 1;
1180                 if(a < b) return -1;
1181                 return 1;
1182         });
1183
1184         return sorted;
1185 }
1186
1187 // ----------------------------------------------------------------------------
1188
1189 function gaugeChart(title, width, dimensions, colors) {
1190         if(typeof colors === 'undefined')
1191                 colors = '';
1192
1193         if(typeof dimensions === 'undefined')
1194                 dimensions = '';
1195
1196         return '<div data-netdata="CHART_UNIQUE_ID"'
1197                                                         + ' data-dimensions="' + dimensions + '"'
1198                                                         + ' data-chart-library="gauge"'
1199                                                         + ' data-gauge-adjust="width"'
1200                                                         + ' data-title="' + title + '"'
1201                                                         + ' data-width="' + width + '"'
1202                                                         + ' data-before="0"'
1203                                                         + ' data-after="-CHART_DURATION"'
1204                                                         + ' data-points="CHART_DURATION"'
1205                                                         + ' data-colors="' + colors + '"'
1206                                                         + ' role="application"></div>';
1207 }
1208
1209 // ----------------------------------------------------------------------------
1210
1211 var menuData = {
1212         'system': {
1213                 title: 'System Overview',
1214                 info: 'Overview of the key system metrics.'
1215         },
1216
1217         'ap': {
1218                 title: 'Access Points',
1219                 info: undefined
1220         },
1221
1222         'tc': {
1223                 title: 'Quality of Service',
1224                 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).'
1225         },
1226
1227         'net': {
1228                 title: 'Network Interfaces',
1229                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
1230         },
1231
1232         'ipv4': {
1233                 title: 'IPv4 Networking',
1234                 info: undefined
1235         },
1236
1237         'ipv6': {
1238                 title: 'IPv6 Networking',
1239                 info: undefined
1240         },
1241
1242         'ipvs': {
1243                 title: 'IP Virtual Server',
1244                 info: undefined
1245         },
1246
1247         'netfilter': {
1248                 title: 'Firewall (netfilter)',
1249                 info: undefined
1250         },
1251
1252         'cpu': {
1253                 title: 'CPUs',
1254                 info: undefined
1255         },
1256
1257         'mem': {
1258                 title: 'Memory',
1259                 info: undefined
1260         },
1261
1262         'disk': {
1263                 title: 'Disks',
1264                 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.'
1265         },
1266
1267         'sensors': {
1268                 title: 'Sensors',
1269                 info: undefined
1270         },
1271
1272         'nfsd': {
1273                 title: 'File Server (nfsd)',
1274                 info: undefined
1275         },
1276
1277         'apps': {
1278                 title: 'Applications',
1279                 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>.',
1280                 height: 1.5
1281         },
1282
1283         'users': {
1284                 title: 'Users',
1285                 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>.',
1286                 height: 1.5
1287         },
1288
1289         'groups': {
1290                 title: 'User Groups',
1291                 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>.',
1292                 height: 1.5
1293         },
1294
1295         'netdata': {
1296                 title: 'Netdata Monitoring',
1297                 info: undefined
1298         },
1299
1300         'example': {
1301                 title: 'Example Charts',
1302                 info: undefined
1303         },
1304
1305         'cgroup': {
1306                 title: 'Container',
1307                 info: undefined
1308         },
1309
1310         'mysql': {
1311                 title: 'MySQL',
1312                 info: undefined
1313         },
1314
1315         'named': {
1316                 title: 'named',
1317                 info: undefined
1318         },
1319 };
1320
1321 var submenuData = {
1322         'mem.ksm': {
1323                 title: 'Memory Deduper',
1324                 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.'
1325         },
1326
1327         'netfilter.conntrack': {
1328                 title: 'Connection Tracker',
1329                 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.'
1330         },
1331
1332         'netfilter.nfacct': {
1333                 title: 'Bandwidth Accounting',
1334                 info: 'The following information is read using the <code>nfacct.plugin</code>.'
1335         },
1336
1337         'netfilter.synproxy': {
1338                 title: 'DDoS Protection',
1339                 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.'
1340         }
1341 };
1342
1343 var chartData = {
1344         'mysql.net': {
1345                 info: 'The amount of data sent to mysql clients (<strong>out</strong>) and received from mysql clients (<strong>in</strong>).'
1346         },
1347
1348         'mysql.queries': {
1349                 info: 'The number of statements executed by the server.<ul>' +
1350                 '<li><strong>queries</strong> counts the statements executed within stored SQL programs.</li>' +
1351                 '<li><strong>questions</strong> counts the statements sent to the mysql server by mysql clients.</li>' +
1352                 '<li><strong>slow queries</strong> counts the number of statements that took more than <a href="http://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_long_query_time" target="_blank">long_query_time</a> seconds to be executed.' +
1353                 ' For more information about slow queries check the mysql <a href="http://dev.mysql.com/doc/refman/5.7/en/slow-query-log.html" target="_blank">slow query log</a>.</li>' +
1354                 '</ul>'
1355         },
1356
1357         'mysql.handlers': {
1358                 info: 'Usage of the internal handlers of mysql. This chart provides very good insights of what the mysql server is actually doing.' +
1359                 ' (if the chart is not showing all these dimensions it is because they are zero - set <strong>Which dimensions to show?</strong> to <strong>All</strong> from the dashboard settings, to render even the zero values)<ul>' +
1360                 '<li><strong>commit</strong>, the number of internal <a href="http://dev.mysql.com/doc/refman/5.7/en/commit.html" target="_blank">COMMIT</a> statements.</li>' +
1361                 '<li><strong>delete</strong>, the number of times that rows have been deleted from tables.</li>' +
1362                 '<li><strong>prepare</strong>, a counter for the prepare phase of two-phase commit operations.</li>' +
1363                 '<li><strong>read first</strong>, the number of times the first entry in an index was read. A high value suggests that the server is doing a lot of full index scans; e.g. <strong>SELECT col1 FROM foo</strong>, with col1 indexed.</li>' +
1364                 '<li><strong>read key</strong>, the number of requests to read a row based on a key. If this value is high, it is a good indication that your tables are properly indexed for your queries.</li>' +
1365                 '<li><strong>read next</strong>, the number of requests to read the next row in key order. This value is incremented if you are querying an index column with a range constraint or if you are doing an index scan.</li>' +
1366                 '<li><strong>read prev</strong>, the number of requests to read the previous row in key order. This read method is mainly used to optimize <strong>ORDER BY ... DESC</strong>.</li>' +
1367                 '<li><strong>read rnd</strong>, the number of requests to read a row based on a fixed position. A high value indicates you are doing a lot of queries that require sorting of the result. You probably have a lot of queries that require MySQL to scan entire tables or you have joins that do not use keys properly.</li>' +
1368                 '<li><strong>read rnd next</strong>, the number of requests to read the next row in the data file. This value is high if you are doing a lot of table scans. Generally this suggests that your tables are not properly indexed or that your queries are not written to take advantage of the indexes you have.</li>' +
1369                 '<li><strong>rollback</strong>, the number of requests for a storage engine to perform a rollback operation.</li>' +
1370                 '<li><strong>savepoint</strong>, the number of requests for a storage engine to place a savepoint.</li>' +
1371                 '<li><strong>savepoint rollback</strong>, the number of requests for a storage engine to roll back to a savepoint.</li>' +
1372                 '<li><strong>update</strong>, the number of requests to update a row in a table.</li>' +
1373                 '<li><strong>write</strong>, the number of requests to insert a row in a table.</li>' +
1374                 '</ul>'
1375         },
1376
1377         'mysql.table_locks': {
1378                 info: 'MySQL table locks counters: <ul>' +
1379                 '<li><strong>immediate</strong>, the number of times that a request for a table lock could be granted immediately.</li>' +
1380                 '<li><strong>waited</strong>, the number of times that a request for a table lock could not be granted immediately and a wait was needed. If this is high and you have performance problems, you should first optimize your queries, and then either split your table or tables or use replication.</li>' +
1381                 '</ul>'
1382         },
1383
1384         'system.cpu': {
1385                 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.'
1386         },
1387
1388         'system.load': {
1389                 info: 'Current system load read from <code>/proc/loadavg</code>.',
1390                 height: 0.7
1391         },
1392
1393         'system.io': {
1394                 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.'
1395         },
1396
1397         'system.swapio': {
1398                 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).'
1399         },
1400
1401         'system.pgfaults': {
1402                 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.'
1403         },
1404
1405         'system.entropy': {
1406                 colors: '#CC22AA',
1407                 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.'
1408         },
1409
1410         'system.forks': {
1411                 colors: '#5555DD',
1412                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
1413         },
1414
1415         'system.intr': {
1416                 colors: '#DD5555',
1417                 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.'
1418         },
1419
1420         'system.interrupts': {
1421                 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.'
1422         },
1423
1424         'system.softirqs': {
1425                 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.'
1426         },
1427
1428         'system.processes': {
1429                 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.'
1430         },
1431
1432         'system.active_processes': {
1433                 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
1434         },
1435
1436         'system.ctxt': {
1437                 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.'
1438         },
1439
1440         'system.idlejitter': {
1441                 colors: '#5555AA',
1442                 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).'
1443         },
1444
1445         'system.ipv4': {
1446                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>.'
1447         },
1448
1449         'system.ipv6': {
1450                 info: 'Total IPv6 Traffic, read from <code>/proc/net/snmp6</code>.'
1451         },
1452
1453         'system.ram': {
1454                 info: 'System memory, read from <code>/proc/meminfo</code>.'
1455         },
1456
1457         'system.swap': {
1458                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
1459         },
1460
1461         'mem.ksm_savings': {
1462                 heads: [
1463                         gaugeChart('Saved', '12%', 'savings', '#0099CC')
1464                 ]
1465         },
1466
1467         'mem.ksm_ratios': {
1468                 heads: [
1469                         function(id) {
1470                                 return  '<div data-netdata="' + id + '"'
1471                                         + ' data-gauge-max-value="100"'
1472                                         + ' data-chart-library="gauge"'
1473                                         + ' data-title="Savings"'
1474                                         + ' data-units="percentage %"'
1475                                         + ' data-gauge-adjust="width"'
1476                                         + ' data-width="12%"'
1477                                         + ' data-before="0"'
1478                                         + ' data-after="-CHART_DURATION"'
1479                                         + ' data-points="CHART_DURATION"'
1480                                         + ' role="application"></div>';
1481                         }
1482                 ]
1483         },
1484
1485         'mem.committed': {
1486                 colors: NETDATA.colors[3]
1487         },
1488
1489         'apps.cpu': {
1490                 height: 2.0
1491         },
1492
1493         'apps.preads': {
1494                 height: 2.0
1495         },
1496
1497         'apps.pwrites': {
1498                 height: 2.0
1499         },
1500
1501         'users.cpu': {
1502                 height: 2.0
1503         },
1504
1505         'users.preads': {
1506                 height: 2.0
1507         },
1508
1509         'users.pwrites': {
1510                 height: 2.0
1511         },
1512
1513         'groups.cpu': {
1514                 height: 2.0
1515         },
1516
1517         'groups.preads': {
1518                 height: 2.0
1519         },
1520
1521         'groups.pwrites': {
1522                 height: 2.0
1523         },
1524
1525         'tc.qos': {
1526                 heads: [
1527                         function(id) {
1528                                 if(id.match(/.*-ifb$/))
1529                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
1530                                 else
1531                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
1532                         }
1533                 ]
1534         },
1535
1536         'net.net': {
1537                 heads: [
1538                         gaugeChart('Received', '12%', 'received'),
1539                         gaugeChart('Sent', '12%', 'sent')
1540                 ]
1541         },
1542
1543         'disk.util': {
1544                 colors: '#FF5588',
1545                 heads: [
1546                         gaugeChart('Utilization', '12%', '', '#FF5588')
1547                 ],
1548                 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.'
1549         },
1550
1551         'disk.backlog': {
1552                 colors: '#0099CC',
1553                 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.'
1554         },
1555
1556         'disk.io': {
1557                 heads: [
1558                         gaugeChart('Read', '12%', 'reads'),
1559                         gaugeChart('Write', '12%', 'writes')
1560                 ],
1561                 info: 'Amount of data transferred to and from disk.'
1562         },
1563
1564         'disk.ops': {
1565                 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).'
1566         },
1567
1568         'disk.qops': {
1569                 info: 'I/O operations currently in progress. This metric is a snapshot - it is not an average over the last interval.'
1570         },
1571
1572         'netfilter.sockets': {
1573                 colors: '#88AA00',
1574                 heads: [
1575                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1576                 ]
1577         },
1578
1579         'netfilter.new': {
1580                 heads: [
1581                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1582                 ]
1583         },
1584
1585         'disk.iotime': {
1586                 height: 0.5,
1587                 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.'
1588         },
1589         'disk.mops': {
1590                 height: 0.5,
1591                 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.'
1592         },
1593         'disk.svctm': {
1594                 height: 0.5,
1595                 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.'
1596         },
1597         'disk.avgsz': {
1598                 height: 0.5,
1599                 info: 'The average I/O operation size.'
1600         },
1601         'disk.await': {
1602                 height: 0.5,
1603                 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.'
1604         },
1605
1606         'disk.space': {
1607                 info: 'Disk space utilization. reserved for root is automatically reserved by the system to prevent the root user from getting out of space.'
1608         },
1609         'disk.inodes': {
1610                 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.'
1611         },
1612         'apache.connections': {
1613                 colors: NETDATA.colors[4],
1614                 mainheads: [
1615                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1616                 ]
1617         },
1618
1619         'apache.requests': {
1620                 colors: NETDATA.colors[0],
1621                 mainheads: [
1622                         gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1623                 ]
1624         },
1625
1626         'apache.net': {
1627                 colors: NETDATA.colors[3],
1628                 mainheads: [
1629                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1630                 ]
1631         },
1632
1633         'apache.workers': {
1634                 mainheads: [
1635                         function(id) {
1636                                 return  '<div data-netdata="' + id + '"'
1637                                         + ' data-dimensions="busy"'
1638                                         + ' data-append-options="percentage"'
1639                                         + ' data-gauge-max-value="100"'
1640                                         + ' data-chart-library="gauge"'
1641                                         + ' data-title="Workers Utilization"'
1642                                         + ' data-units="percentage %"'
1643                                         + ' data-gauge-adjust="width"'
1644                                         + ' data-width="12%"'
1645                                         + ' data-before="0"'
1646                                         + ' data-after="-CHART_DURATION"'
1647                                         + ' data-points="CHART_DURATION"'
1648                                         + ' role="application"></div>';
1649                         }
1650                 ]
1651         },
1652
1653         'apache.bytesperreq': {
1654                 colors: NETDATA.colors[3],
1655                 height: 0.5
1656         },
1657
1658         'apache.reqpersec': {
1659                 colors: NETDATA.colors[4],
1660                 height: 0.5
1661         },
1662
1663         'apache.bytespersec': {
1664                 colors: NETDATA.colors[6],
1665                 height: 0.5
1666         },
1667
1668         'nginx.connections': {
1669                 colors: NETDATA.colors[4],
1670                 mainheads: [
1671                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1672                 ]
1673         },
1674
1675         'nginx.requests': {
1676                 colors: NETDATA.colors[0],
1677                 mainheads: [
1678                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1679                 ]
1680         }
1681 };
1682
1683 function anyAttribute(obj, attr, key, def) {
1684         if(typeof obj[key] !== 'undefined') {
1685                 if(typeof obj[key][attr] !== 'undefined')
1686                         return obj[key][attr];
1687         }
1688         return def;
1689 }
1690
1691 function menuTitle(chart) {
1692         if(typeof chart.menu_pattern !== 'undefined') {
1693                 return anyAttribute(menuData, 'title', chart.menu_pattern, chart.menu_pattern).toString()
1694                                 + ': ' + chart.type.slice(-(chart.type.length - chart.menu_pattern.length - 1)).toString();
1695         }
1696
1697         return anyAttribute(menuData, 'title', chart.menu, chart.menu);
1698 }
1699
1700 function menuInfo(menu) {
1701         return anyAttribute(menuData, 'info', menu, null);
1702 }
1703
1704 function menuHeight(menu, relative) {
1705         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1706 }
1707
1708 function submenuTitle(menu, submenu) {
1709         var key = menu + '.' + submenu;
1710         return anyAttribute(submenuData, 'title', key, submenu);
1711 }
1712
1713 function submenuInfo(menu, submenu) {
1714         var key = menu + '.' + submenu;
1715         return anyAttribute(submenuData, 'info', key, null);
1716 }
1717
1718 function submenuHeight(menu, submenu, relative) {
1719         var key = menu + '.' + submenu;
1720         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1721 }
1722
1723
1724 function chartInfo(id) {
1725         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1726                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1727         else
1728                 return '';
1729 }
1730
1731 function chartHeight(id, def) {
1732         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1733                 return def * chartData[id].height;
1734         else
1735                 return def;
1736 }
1737
1738
1739 // ----------------------------------------------------------------------------
1740
1741 // enrich the data structure returned by netdata
1742 // to reflect our menu system and content
1743 function enrichChartData(chart) {
1744         var tmp = chart.type.split('_')[0];
1745
1746         switch(tmp) {
1747                 case 'ap':
1748                 case 'net':
1749                 case 'disk':
1750                         chart.menu = tmp;
1751                         break;
1752
1753                 case 'mysql':
1754                 case 'named':
1755                 case 'cgroup':
1756                         chart.menu = chart.type;
1757                         chart.menu_pattern = tmp;
1758                         break;
1759
1760                 case 'tc':
1761                         chart.menu = tmp;
1762
1763                         // find a name for this device from fireqos info
1764                         // we strip '_(in|out)' or '(in|out)_'
1765                         if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family) {
1766                                 var n = chart.name.split('.')[1];
1767                                 if(n.endsWith('_in'))
1768                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_in'));
1769                                 else if(n.endsWith('_out'))
1770                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_out'));
1771                                 else if(n.startsWith('in_'))
1772                                         options.submenu_names[chart.family] = n.slice(3, n.length);
1773                                 else if(n.startsWith('out_'))
1774                                         options.submenu_names[chart.family] = n.slice(4, n.length);
1775                         }
1776
1777                         // increase the priority of IFB devices
1778                         // to have inbound appear before outbound
1779                         if(chart.id.match(/.*-ifb$/))
1780                                 chart.priority--;
1781
1782                         break;
1783
1784                 default:
1785                         chart.menu = chart.type;
1786                         break;
1787         }
1788
1789         chart.submenu = chart.family;
1790 }
1791
1792 // ----------------------------------------------------------------------------
1793
1794 function name2id(s) {
1795         return s
1796                 .replace(/ /g, '_')
1797                 .replace(/\(/g, '_')
1798                 .replace(/\)/g, '_')
1799                 .replace(/\./g, '_')
1800                 .replace(/\//g, '_');
1801 }
1802
1803 function headMain(charts, duration) {
1804         var head = '';
1805
1806         if(typeof charts['system.swap'] !== 'undefined')
1807                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1808                 + ' data-dimensions="free"'
1809                 + ' data-append-options="percentage"'
1810                 + ' data-chart-library="easypiechart"'
1811                 + ' data-title="Free Swap"'
1812                 + ' data-units="%"'
1813                 + ' data-easypiechart-max-value="100"'
1814                 + ' data-width="8%"'
1815                 + ' data-before="0"'
1816                 + ' data-after="-' + duration.toString() + '"'
1817                 + ' data-points="' + duration.toString() + '"'
1818                 + ' data-colors="#DD4400"'
1819                 + ' role="application"></div>';
1820
1821         if(typeof charts['system.io'] !== 'undefined') {
1822                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1823                 + ' data-dimensions="in"'
1824                 + ' data-chart-library="easypiechart"'
1825                 + ' data-title="Disk Read"'
1826                 + ' data-units="KB / s"'
1827                 + ' data-width="10%"'
1828                 + ' data-before="0"'
1829                 + ' data-after="-' + duration.toString() + '"'
1830                 + ' data-points="' + duration.toString() + '"'
1831                 + ' role="application"></div>';
1832
1833                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1834                 + ' data-dimensions="out"'
1835                 + ' data-chart-library="easypiechart"'
1836                 + ' data-title="Disk Write"'
1837                 + ' data-units="KB / s"'
1838                 + ' data-width="10%"'
1839                 + ' data-before="0"'
1840                 + ' data-after="-' + duration.toString() + '"'
1841                 + ' data-points="' + duration.toString() + '"'
1842                 + ' role="application"></div>';
1843         }
1844
1845         if(typeof charts['system.cpu'] !== 'undefined')
1846                 head += '<div data-netdata="system.cpu"'
1847                 + ' data-chart-library="gauge"'
1848                 + ' data-title="CPU"'
1849                 + ' data-units="%"'
1850                 + ' data-gauge-max-value="100"'
1851                 + ' data-width="18%"'
1852                 + ' data-after="-' + duration.toString() + '"'
1853                 + ' data-points="' + duration.toString() + '"'
1854                 + ' data-colors="' + NETDATA.colors[12] + '"'
1855                 + ' role="application"></div>';
1856
1857         if(typeof charts['system.ipv4'] !== 'undefined') {
1858                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1859                 + ' data-dimensions="received"'
1860                 + ' data-chart-library="easypiechart"'
1861                 + ' data-title="IPv4 Inbound"'
1862                 + ' data-units="kbps"'
1863                 + ' data-width="10%"'
1864                 + ' data-before="0"'
1865                 + ' data-after="-' + duration.toString() + '"'
1866                 + ' data-points="' + duration.toString() + '"'
1867                 + ' role="application"></div>';
1868
1869                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1870                 + ' data-dimensions="sent"'
1871                 + ' data-chart-library="easypiechart"'
1872                 + ' data-title="IPv4 Outbound"'
1873                 + ' data-units="kbps"'
1874                 + ' data-width="10%"'
1875                 + ' data-before="0"'
1876                 + ' data-after="-' + duration.toString() + '"'
1877                 + ' data-points="' + duration.toString() + '"'
1878                 + ' role="application"></div>';
1879         }
1880         else if(typeof charts['system.ipv6'] !== 'undefined') {
1881                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1882                 + ' data-dimensions="received"'
1883                 + ' data-chart-library="easypiechart"'
1884                 + ' data-title="IPv6 Inbound"'
1885                 + ' data-units="kbps"'
1886                 + ' data-width="10%"'
1887                 + ' data-before="0"'
1888                 + ' data-after="-' + duration.toString() + '"'
1889                 + ' data-points="' + duration.toString() + '"'
1890                 + ' role="application"></div>';
1891
1892                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1893                 + ' data-dimensions="sent"'
1894                 + ' data-chart-library="easypiechart"'
1895                 + ' data-title="IPv6 Outbound"'
1896                 + ' data-units="kbps"'
1897                 + ' data-width="10%"'
1898                 + ' data-before="0"'
1899                 + ' data-after="-' + duration.toString() + '"'
1900                 + ' data-points="' + duration.toString() + '"'
1901                 + ' role="application"></div>';
1902         }
1903
1904         if(typeof charts['system.ram'] !== 'undefined')
1905                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1906                 + ' data-dimensions="cached|free"'
1907                 + ' data-append-options="percentage"'
1908                 + ' data-chart-library="easypiechart"'
1909                 + ' data-title="Available RAM"'
1910                 + ' data-units="%"'
1911                 + ' data-easypiechart-max-value="100"'
1912                 + ' data-width="8%"'
1913                 + ' data-after="-' + duration.toString() + '"'
1914                 + ' data-points="' + duration.toString() + '"'
1915                 + ' data-colors="' + NETDATA.colors[7] + '"'
1916                 + ' role="application"></div>';
1917
1918         return head;
1919 }
1920
1921 function generateHeadCharts(type, chart, duration) {
1922         var head = '';
1923         var hcharts = anyAttribute(chartData, type, chart.context, []);
1924         if(hcharts.length > 0) {
1925                 var hi = 0, hlen = hcharts.length;
1926                 while(hi < hlen) {
1927                         if(typeof hcharts[hi] === 'function')
1928                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1929                         else
1930                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1931                         hi++;
1932                 }
1933         }
1934         return head;
1935 }
1936
1937 function renderPage(menus, data) {
1938         var div = document.getElementById('charts_div');
1939         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
1940
1941         // find the proper duration for per-second updates
1942         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
1943         var html = '';
1944         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
1945         var mainhead = headMain(data.charts, duration);
1946
1947         // sort the menus
1948         var main = sortObjectByPriority(menus);
1949         var i = 0, len = main.length;
1950         while(i < len) {
1951                 var menu = main[i++];
1952
1953                 // generate an entry at the main menu
1954
1955                 var menuid = name2id(menu);
1956                 sidebar += '<li class=""><a href="#' + menuid + '">' + menus[menu].title + '</a><ul class="nav">';
1957                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menuid + '" role="heading">' + menus[menu].title + '</h1></div><div id="menu_' + menuid + '" role="document">';
1958
1959                 if(menus[menu].info !== null)
1960                         html += menus[menu].info;
1961
1962                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
1963
1964                 var shtml = '';
1965                 var mhead = '<div class="netdata-chart-row">' + mainhead;
1966                 mainhead = '';
1967
1968                 // sort the submenus of this menu
1969                 var sub = sortObjectByPriority(menus[menu].submenus);
1970                 var si = 0, slen = sub.length;
1971                 while(si < slen) {
1972                         var submenu = sub[si++];
1973
1974                         // generate an entry at the submenu
1975                         var submenuid = name2id(menu + '_' + submenu);
1976                         sidebar += '<li class><a href="#' + submenuid + '">' + menus[menu].submenus[submenu].title + '</a></li>';
1977                         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>';
1978
1979                         if(menus[menu].submenus[submenu].info !== null)
1980                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
1981
1982                         var head = '<div class="netdata-chart-row">';
1983                         var chtml = '';
1984
1985                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
1986
1987                         // sort the charts in this submenu of this menu
1988                         menus[menu].submenus[submenu].charts.sort(prioritySort);
1989                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
1990                         while(ci < clen) {
1991                                 var chart = menus[menu].submenus[submenu].charts[ci++];
1992
1993                                 // generate the submenu heading charts
1994                                 mhead += generateHeadCharts('mainheads', chart, duration);
1995                                 head += generateHeadCharts('heads', chart, duration);
1996
1997                                 // generate the chart
1998                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
1999                                         + ' data-width="' + pcent_width.toString() + '%"'
2000                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
2001                                         + ' data-before="0"'
2002                                         + ' data-after="-' + duration.toString() + '"'
2003                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
2004                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
2005                                         + ' role="application"></div>';
2006
2007                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
2008                         }
2009
2010                         head += '</div>';
2011                         shtml += head + chtml + '</div>';
2012                 }
2013
2014                 mhead += '</div>';
2015                 sidebar += '</ul></li>';
2016                 html += mhead + shtml + '</div></div><hr role="separator"/>';
2017         }
2018
2019         sidebar += '</ul>';
2020         div.innerHTML = html;
2021         document.getElementById('sidebar').innerHTML = sidebar;
2022         finalizePage();
2023 }
2024
2025 function renderChartsAndMenu(data) {
2026         var menus = {};
2027         var charts = data.charts;
2028
2029         for(var c in charts) {
2030                 enrichChartData(charts[c]);
2031
2032                 // create the menu
2033                 if(typeof menus[charts[c].menu] === 'undefined') {
2034                         menus[charts[c].menu] = {
2035                                 priority: charts[c].priority,
2036                                 submenus: {},
2037                                 title: menuTitle(charts[c]),
2038                                 info: menuInfo(charts[c].menu),
2039                                 height: menuHeight(charts[c].menu, options.chartsHeight)
2040                         };
2041                 }
2042
2043                 if(charts[c].priority < menus[charts[c].menu].priority)
2044                         menus[charts[c].menu].priority = charts[c].priority;
2045
2046                 // create the submenu
2047                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
2048                         menus[charts[c].menu].submenus[charts[c].submenu] = {
2049                                 priority: charts[c].priority,
2050                                 charts: new Array(),
2051                                 title: null,
2052                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
2053                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
2054                         };
2055                 }
2056
2057                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
2058                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
2059
2060                 // index the chart in the menu/submenu
2061                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
2062         }
2063
2064         // propagate the descriptive subname given to QoS
2065         // to all the other submenus with the same name
2066         for(var m in menus) {
2067                 for(var s in menus[m].submenus) {
2068                         // set the family using a name
2069                         if(typeof options.submenu_names[s] !== 'undefined') {
2070                                 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
2071                         }
2072                         else {
2073                                 menus[m].submenus[s].title = submenuTitle(m, s);
2074                         }
2075                 }
2076         }
2077
2078         renderPage(menus, data);
2079 }
2080
2081 function downloadAllCharts(netdata_url) {
2082         if(typeof netdata_url === 'undefined' || netdata_url === null)
2083                 netdata_url = NETDATA.serverDefault;
2084
2085         NETDATA.pause(function() {
2086
2087                 // download all the charts the server knows
2088                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
2089
2090                         options.data = data;
2091                         options.hostname = data.hostname;
2092                         document.getElementById('hostname').innerHTML = options.hostname;
2093                         document.getElementById('hostname').href = NETDATA.serverDefault;
2094                         document.title = options.hostname + ' dashboard';
2095
2096                         renderChartsAndMenu(data);
2097
2098                         // prepare our DOM
2099 //                      prepareScreen(data);
2100
2101                         // due to affix issues, prepareScreen() will unpause
2102                         // netdata as needed
2103                 });
2104         });
2105 }
2106
2107 // ----------------------------------------------------------------------------
2108
2109 function versionLog(msg) {
2110         document.getElementById('versionCheckLog').innerHTML = msg;
2111 }
2112
2113 function getNetdataVersion(callback) {
2114         versionLog('Downloading installed version info from netdata...');
2115
2116         $.ajax({
2117                 url: 'version.txt',
2118                 async: true,
2119                 cache: false
2120         })
2121         .done(function(data) {
2122                 data = data.replace(/(\r\n|\n|\r| |\t)/gm,"");
2123                 if(data.length !== 40) {
2124                         versionLog('Received version string is invalid.');
2125                         callback(null);
2126                 }
2127                 else {
2128                         versionLog('Installed version of netdata is ' + data);
2129                         document.getElementById('netdataVersion').innerHTML = data;
2130                         callback(data);
2131                 }
2132         })
2133         .fail(function() {
2134                 versionLog('Failed to download installed version info from netdata!');
2135                 callback(null);
2136         });
2137 }
2138
2139 function getGithubLatestCommit(callback) {
2140         versionLog('Downloading latest version info from github...');
2141
2142         $.ajax({
2143                 url: 'https://api.github.com/repos/firehol/netdata/commits',
2144                 async: true,
2145                 cache: false
2146         })
2147         .done(function(data) {
2148                 versionLog('Latest version info from github is ' + data[0].sha);
2149                 callback(data[0].sha);
2150         })
2151         .fail(function() {
2152                 versionLog('Failed to download installed version info from github!');
2153                 callback(null);
2154         });
2155 }
2156
2157 function checkForUpdate(callback) {
2158         getNetdataVersion(function(sha1) {
2159                 if(sha1 === null) callback(null, null);
2160
2161                 getGithubLatestCommit(function(sha2) {
2162                         callback(sha1, sha2);
2163                 });
2164         });
2165
2166         return null;
2167 }
2168
2169 var updateBlinkCounter = 0;
2170 function notifyForUpdate(force) {
2171         versionLog('<p>checking for updates...</p>');
2172
2173         var now = new Date().getTime();
2174
2175         if(typeof force === 'undefined' || force !== true) {
2176                 var last = loadLocalStorage('last_update_check');
2177
2178                 if(typeof last === 'string')
2179                         last = parseInt(last);
2180                 else
2181                         last = 0;
2182
2183                 if(now - last < 3600000 * 8) {
2184                         // no need to check it - too soon
2185                         return;
2186                 }
2187         }
2188
2189         checkForUpdate(function(sha1, sha2) {
2190                 var save = false;
2191
2192                 if(sha1 === null) {
2193                         save = false;
2194                         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>');
2195                 }
2196                 else if(sha2 === null) {
2197                         save = false;
2198                         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>');
2199                 }
2200                 else if(sha1 === sha2) {
2201                         save = true;
2202                         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>');
2203                 }
2204                 else {
2205                         save = true;
2206                         var compare = 'https://github.com/firehol/netdata/compare/' + sha1.toString() + '...' + sha2.toString();
2207
2208                         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>');
2209
2210                         function updateButtonBlink() {
2211                                 updateBlinkCounter--;
2212                                 if(updateBlinkCounter > 0)
2213                                         $('#updateButton').fadeOut(500).fadeIn(500, updateButtonBlink);
2214                         }
2215
2216                         if(updateBlinkCounter === 0) {
2217                                 updateBlinkCounter = 300;
2218                                 updateButtonBlink();
2219                         }
2220                 }
2221
2222                 if(save)
2223                         saveLocalStorage('last_update_check', now.toString());
2224         });
2225 }
2226
2227 // ----------------------------------------------------------------------------
2228
2229 function getUrlParameter(sParam) {
2230     var sPageURL = decodeURIComponent(window.location.search.substring(1)),
2231         sURLVariables = sPageURL.split('&'),
2232         sParameterName,
2233         i;
2234
2235     for (i = 0; i < sURLVariables.length; i++) {
2236         sParameterName = sURLVariables[i].split('=');
2237
2238         if (sParameterName[0] === sParam) {
2239             return sParameterName[1] === undefined ? true : sParameterName[1];
2240         }
2241     }
2242 }
2243
2244 function finalizePage() {
2245         // resize all charts - without starting the background thread
2246         // this has to be done while NETDATA is paused
2247         // if we ommit this, the affix menu will be wrong, since all
2248         // the Dom elements are initially zero-sized
2249         NETDATA.parseDom();
2250
2251         var before = 0, after = 0, nowelcome = 0;
2252         after = getUrlParameter('force_after_ms');
2253         before = getUrlParameter('force_before_ms');
2254         nowelcome = (getUrlParameter('nowelcome') === true)?true:false;
2255
2256         if(before > 0 && after > 0) {
2257                 nowelcome = true;
2258                 NETDATA.globalPanAndZoom.setMaster(NETDATA.options.targets[0], after, before);
2259         }
2260
2261         // ------------------------------------------------------------------------
2262         // https://github.com/viralpatel/jquery.shorten/blob/master/src/jquery.shorten.js
2263         $.fn.shorten = function(settings) {
2264                 "use strict";
2265
2266                 var config = {
2267                         showChars: 750,
2268                         minHideChars: 10,
2269                         ellipsesText: "...",
2270                         moreText: '<i class="fa fa-expand" aria-hidden="true"></i> show more information',
2271                         lessText: '<i class="fa fa-compress" aria-hidden="true"></i> show less information',
2272                         onLess: function() { NETDATA.onscroll(); },
2273                         onMore: function() { NETDATA.onscroll(); },
2274                         errMsg: null,
2275                         force: false
2276                 };
2277
2278                 if (settings) {
2279                         $.extend(config, settings);
2280                 }
2281
2282                 if ($(this).data('jquery.shorten') && !config.force) {
2283                         return false;
2284                 }
2285                 $(this).data('jquery.shorten', true);
2286
2287                 $(document).off("click", '.morelink');
2288
2289                 $(document).on({
2290                         click: function() {
2291
2292                                 var $this = $(this);
2293                                 if ($this.hasClass('less')) {
2294                                         $this.removeClass('less');
2295                                         $this.html(config.moreText);
2296                                         $this.parent().prev().animate({'height':'0'+'%'}, 0, function () { $this.parent().prev().prev().show(); }).hide(0, function() {
2297                                                 config.onLess();
2298                                         });
2299
2300                                 } else {
2301                                         $this.addClass('less');
2302                                         $this.html(config.lessText);
2303                                         $this.parent().prev().animate({'height':'100'+'%'}, 0, function () { $this.parent().prev().prev().hide(); }).show(0, function() {
2304                                                 config.onMore();
2305                                         });
2306                                 }
2307                                 return false;
2308                         }
2309                 }, '.morelink');
2310
2311                 return this.each(function() {
2312                         var $this = $(this);
2313
2314                         var content = $this.html();
2315                         var contentlen = $this.text().length;
2316                         if (contentlen > config.showChars + config.minHideChars) {
2317                                 var c = content.substr(0, config.showChars);
2318                                 if (c.indexOf('<') >= 0) // If there's HTML don't want to cut it
2319                                 {
2320                                         var inTag = false; // I'm in a tag?
2321                                         var bag = ''; // Put the characters to be shown here
2322                                         var countChars = 0; // Current bag size
2323                                         var openTags = []; // Stack for opened tags, so I can close them later
2324                                         var tagName = null;
2325
2326                                         for (var i = 0, r = 0; r <= config.showChars; i++) {
2327                                                 if (content[i] == '<' && !inTag) {
2328                                                         inTag = true;
2329
2330                                                         // This could be "tag" or "/tag"
2331                                                         tagName = content.substring(i + 1, content.indexOf('>', i));
2332
2333                                                         // If its a closing tag
2334                                                         if (tagName[0] == '/') {
2335
2336
2337                                                                 if (tagName != '/' + openTags[0]) {
2338                                                                         config.errMsg = 'ERROR en HTML: the top of the stack should be the tag that closes';
2339                                                                 } else {
2340                                                                         openTags.shift(); // Pops the last tag from the open tag stack (the tag is closed in the retult HTML!)
2341                                                                 }
2342
2343                                                         } else {
2344                                                                 // There are some nasty tags that don't have a close tag like <br/>
2345                                                                 if (tagName.toLowerCase() != 'br') {
2346                                                                         openTags.unshift(tagName); // Add to start the name of the tag that opens
2347                                                                 }
2348                                                         }
2349                                                 }
2350                                                 if (inTag && content[i] == '>') {
2351                                                         inTag = false;
2352                                                 }
2353
2354                                                 if (inTag) { bag += content.charAt(i); } // Add tag name chars to the result
2355                                                 else {
2356                                                         r++;
2357                                                         if (countChars <= config.showChars) {
2358                                                                 bag += content.charAt(i); // Fix to ie 7 not allowing you to reference string characters using the []
2359                                                                 countChars++;
2360                                                         } else // Now I have the characters needed
2361                                                         {
2362                                                                 if (openTags.length > 0) // I have unclosed tags
2363                                                                 {
2364                                                                         //console.log('They were open tags');
2365                                                                         //console.log(openTags);
2366                                                                         for (j = 0; j < openTags.length; j++) {
2367                                                                                 //console.log('Cierro tag ' + openTags[j]);
2368                                                                                 bag += '</' + openTags[j] + '>'; // Close all tags that were opened
2369
2370                                                                                 // You could shift the tag from the stack to check if you end with an empty stack, that means you have closed all open tags
2371                                                                         }
2372                                                                         break;
2373                                                                 }
2374                                                         }
2375                                                 }
2376                                         }
2377                                         c = $('<div/>').html(bag + '<span class="ellip">' + config.ellipsesText + '</span>').html();
2378                                 }else{
2379                                         c+=config.ellipsesText;
2380                                 }
2381
2382                                 var html = '<div class="shortcontent">' + c +
2383                                                 '</div><div class="allcontent">' + content +
2384                                                 '</div><span><a href="javascript://nop/" class="morelink">' + config.moreText + '</a></span>';
2385
2386                                 $this.html(html);
2387                                 $this.find(".allcontent").hide(); // Hide all text
2388                                 $('.shortcontent p:last', $this).css('margin-bottom', 0); //Remove bottom margin on last paragraph as it's likely shortened
2389                         }
2390                 });
2391
2392         };
2393         $(".chart-message").shorten();
2394         // ------------------------------------------------------------------------
2395
2396         // let it run (update the charts)
2397         NETDATA.unpause();
2398
2399         // check if we have to jump to a specific section
2400         var hash = location.hash.replace('#','');
2401         if(hash != '') {
2402                 // Clear the hash in the URL
2403                 // location.hash = '';   // delete front "//" if you want to change the address bar
2404                 var offset = $(location.hash).offset();
2405                 if(typeof offset !== 'undefined')
2406                         $('html, body').animate({ scrollTop: offset.top }, 0);
2407         }
2408
2409         /* activate bootstrap sidebar (affix) */
2410         $('#sidebar').affix({
2411                 offset: {
2412                         top: (isdemo())?150:0,
2413                         bottom: 0
2414                 }
2415         });
2416
2417         /* fix scrolling of very long affix lists
2418            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
2419          */
2420         $('#sidebar').on('affixed.bs.affix', function() {
2421                 $(this).removeAttr('style');
2422         });
2423
2424         /* activate bootstrap scrollspy (needed for sidebar) */
2425         $(document.body).scrollspy({
2426                 target: '#sidebar',
2427                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
2428         });
2429
2430         $('#sidebar').on('activate.bs.scrollspy', function (e)\r
2431         {\r
2432                 var el = $(e.target);\r
2433                 if (el.find('ul').size() == 0)\r
2434                 {\r
2435                         var href = el.find('a').attr('href');\r
2436                         document.location.hash = href;\r
2437                 };\r
2438         });
2439
2440         document.getElementById('footer').style.display = 'block';
2441
2442
2443         var update_options_modal = function() {
2444                 // console.log('update_options_modal');
2445
2446                 var sync_option = function(option) {
2447                         var self = $('#' + option);
2448
2449                         if(self.prop('checked') !== NETDATA.getOption(option)) {
2450                                 // console.log('switching ' + option.toString());
2451                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
2452                         }
2453                 }
2454
2455                 var theme_sync_option = function(option) {
2456                         var self = $('#' + option);
2457
2458                         self.bootstrapToggle(netdataTheme === 'slate'?'on':'off');
2459                 }
2460
2461                 sync_option('eliminate_zero_dimensions');
2462                 sync_option('destroy_on_hide');
2463                 sync_option('parallel_refresher');
2464                 sync_option('concurrent_refreshes');
2465                 sync_option('sync_selection');
2466                 sync_option('sync_pan_and_zoom');
2467                 sync_option('stop_updates_when_focus_is_lost');
2468                 sync_option('smooth_plot');
2469                 sync_option('pan_and_zoom_data_padding');
2470                 sync_option('show_help');
2471                 theme_sync_option('netdata_theme_control');
2472
2473                 if(NETDATA.getOption('parallel_refresher') === false) {
2474                         $('#concurrent_refreshes_row').hide();
2475                 }
2476                 else {
2477                         $('#concurrent_refreshes_row').show();
2478                 }
2479         };
2480         NETDATA.setOption('setOptionCallback', update_options_modal);
2481
2482         // handle options changes
2483         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
2484         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
2485         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
2486         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
2487         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
2488         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
2489         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
2490         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
2491         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
2492         $('#show_help').change(function()                       { NETDATA.setOption('show_help', $(this).prop('checked')); location.reload(); });
2493
2494         // this has to be the last
2495         // it reloads the page
2496         $('#netdata_theme_control').change(function() {
2497                 if(setTheme($(this).prop('checked')?'slate':'white'))
2498                         location.reload();
2499         });
2500
2501         $('#updateModal').on('shown.bs.modal', function() {
2502                 notifyForUpdate(true);
2503         });
2504
2505         $('#deleteRegistryModal').on('hidden.bs.modal', function() {
2506                 deleteRegistryGuid = null;
2507         });
2508
2509         if(isdemo()) {
2510                 if(!nowelcome) {
2511                         setTimeout(function() {
2512                                 $('#welcomeModal').modal();
2513                         }, 1000);
2514                 }
2515
2516                 // google analytics when this is used for the home page of the demo sites
2517                 // this does not run on user's installations
2518                 setTimeout(function() {
2519                         (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
2520                         (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
2521                         m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
2522                         })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
2523
2524                         ga('create', 'UA-64295674-3', 'auto');
2525                         ga('send', 'pageview');
2526                 }, 2000);
2527         }
2528         else notifyForUpdate();
2529 }
2530
2531 function resetDashboardOptions() {
2532         var help = NETDATA.options.current.show_help;
2533
2534         NETDATA.resetOptions();
2535         if(setTheme('slate'))
2536                 location.reload();
2537
2538         if(help !== NETDATA.options.current.show_help)
2539                 location.reload();
2540 }
2541
2542 downloadAllCharts();
2543
2544 </script>
2545
2546 </body>
2547 </html>