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