4 <title>netdata dashboard</title>
5 <meta name="application-name" content="netdata">
7 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
9 <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
10 <meta name="viewport" content="width=device-width, initial-scale=1">
11 <meta name="apple-mobile-web-app-capable" content="yes">
12 <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
13 <meta name="author" content="costa@tsaousis.gr">
15 <link rel="shortcut icon" href="images/seo-performance-multi-size.ico">
17 <link rel="apple-touch-icon" href="images/seo-performance-72.png">
18 <link rel="apple-touch-icon" sizes="72x72" href="images/seo-performance-72.png">
19 <link rel="apple-touch-icon" sizes="114x114" href="images/seo-performance-114.png">
21 <link rel="icon" type="image/png" sizes="512x512" href="images/seo-performance-512.png">
22 <link rel="icon" type="image/png" sizes="256x256" href="images/seo-performance-256.png">
23 <link rel="icon" type="image/png" sizes="128x128" href="images/seo-performance-128.png">
24 <link rel="icon" type="image/png" sizes="64x64" href="images/seo-performance-64.png">
25 <link rel="icon" type="image/png" sizes="48x48" href="images/seo-performance-48.png">
26 <link rel="icon" type="image/png" sizes="32x32" href="images/seo-performance-32.png">
27 <link rel="icon" type="image/png" sizes="24x24" href="images/seo-performance-24.png">
28 <link rel="icon" type="image/png" sizes="16x16" href="images/seo-performance-16.png">
30 <meta property="og:locale" content="en_US" />
31 <meta property="og:image" content="http://my-netdata.io/images/post.png"/>
32 <meta property="og:url" content="http://my-netdata.io/"/>
33 <meta property="og:type" content="website"/>
34 <meta property="og:site_name" content="netdata"/>
35 <meta property="og:title" content="netdata - real-time performance monitoring, done right!"/>
36 <meta property="og:description" content="Stunning real-time dashboards, blazingly fast and extremely interactive. Zero configuration, zero dependencies, zero maintenance." />
40 /* prevent body from hiding under the navbar */
45 .modal-wide .modal-dialog {
49 /* fix # anchors scrolling under the navbar
50 https://github.com/twbs/bootstrap/issues/1768#issuecomment-46519033
60 h1:before, h2:before {
91 width: 90% !important;
104 /* fix the navbar shifting when a modal is open */
105 /* https://github.com/twbs/bootstrap/issues/14040#issuecomment-159891033 */
107 width: 100% !important;
108 padding-right: 0 !important;
109 /* overflow-y: scroll !important; */
110 /* position: fixed !important;*/
117 * Scrollspy and affixed enhanced navigation to highlight sections and secondary
118 * sections of docs content.
123 top: 70px !important;
132 max-height: calc(100% - 70px) !important;
134 /*width: 220px !important;*/
137 /* By default it's not affixed in mobile views, so undo that */
138 .dashboard-sidebar.affix {
142 @media (min-width: 768px) {
148 /* First level of nav */
154 /* All levels of nav */
155 .dashboard-sidebar .nav > li > a {
162 .dashboard-sidebar .nav > li > a:hover,
163 .dashboard-sidebar .nav > li > a:focus {
166 text-decoration: none;
167 background-color: transparent;
168 border-left: 1px solid #563d7c;
170 .dashboard-sidebar .nav > .active > a,
171 .dashboard-sidebar .nav > .active:hover > a,
172 .dashboard-sidebar .nav > .active:focus > a {
176 background-color: transparent;
177 border-left: 2px solid #563d7c;
180 /* Nav: second level (shown on .active) */
181 .dashboard-sidebar .nav .nav {
182 display: none; /* Hide by default, but at >768px, show it */
183 padding-bottom: 10px;
185 .dashboard-sidebar .nav .nav > li > a {
192 .dashboard-sidebar .nav .nav > li > a:hover,
193 .dashboard-sidebar .nav .nav > li > a:focus {
196 .dashboard-sidebar .nav .nav > .active > a,
197 .dashboard-sidebar .nav .nav > .active:hover > a,
198 .dashboard-sidebar .nav .nav > .active:focus > a {
206 .dropdown-menu.columns-2 {
211 .dropdown-menu li a {
215 .dropdown-menu.multi-column {
218 .multi-column-dropdown {
222 .multi-column-dropdown li a {
225 line-height: 1.428571429;
228 .multi-column-dropdown li a:hover {
229 text-decoration: none;
231 background-color: #262626;
239 /* Back to top (hidden on mobile) */
241 .dashboard-theme-toggle {
251 .dashboard-theme-toggle:hover {
253 text-decoration: none;
255 .dashboard-theme-toggle {
259 @media (min-width: 768px) {
261 .dashboard-theme-toggle {
265 /* Widen the fixed sidebar */
266 .dashboard-sidebar.affix,
267 .dashboard-sidebar.affix-top,
268 .dashboard-sidebar.affix-bottom {
269 width: 200px !important;
272 .dashboard-sidebar.affix {
273 position: fixed; /* Undo the static from mobile first approach */
277 .dashboard-sidebar.affix-bottom {
278 position: absolute; /* Undo the static from mobile first approach */
281 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
282 .dashboard-sidebar.affix .dashboard-sidenav {
288 /* Show and affix the side nav when space allows it */
289 @media (min-width: 992px) {
290 .dashboard-sidebar .nav > .active > ul {
294 /* Widen the fixed sidebar */
295 .dashboard-sidebar.affix,
296 .dashboard-sidebar.affix-top,
297 .dashboard-sidebar.affix-bottom {
298 width: 200px !important;
300 .dashboard-sidebar.affix {
301 position: fixed; /* Undo the static from mobile first approach */
304 .dashboard-sidebar.affix-bottom {
305 position: absolute; /* Undo the static from mobile first approach */
307 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
308 .dashboard-sidebar.affix .dashboard-sidenav {
314 @media (min-width: 1200px) {
315 /* Widen the fixed sidebar again */
316 .dashboard-sidebar.affix-bottom,
317 .dashboard-sidebar.affix-top,
318 .dashboard-sidebar.affix {
324 <!-- you can set your netdata server globally, by ucommenting this -->
325 <!-- you can also give a different server per chart, with the attribute: data-host="http://netdata.server:19999" -->
326 <!-- <script> netdataServer = "http://box:19999"; </script> -->
328 <!-- check which theme to use -->
330 function loadLocalStorage(name) {
334 if(typeof Storage !== "undefined" && typeof localStorage === 'object')
335 ret = localStorage.getItem(name);
341 if(typeof ret === 'undefined' || ret === null)
347 function saveLocalStorage(name, value) {
349 if(typeof Storage !== "undefined" && typeof localStorage === 'object') {
350 localStorage.setItem(name, value.toString());
361 function getTheme(def) {
362 var ret = loadLocalStorage('netdataTheme');
363 if(typeof ret === 'undefined' || ret === null || ret === 'undefined')
369 var netdataTheme = getTheme('slate');
371 function setTheme(theme) {
372 if(theme === netdataTheme) return false;
374 return saveLocalStorage('netdataTheme', theme);
377 var netdataRegistryCallback = function(machines_array) {
383 function name_comparator_desc(a, b) {
384 if (a.name > b.name) return -1;
385 if (a.name < b.name) return 1;
389 var machines = machines_array.sort(name_comparator_desc);
390 var len = machines.length;
392 var u = machines[len];
394 el += '<li id="registry_server_' + u.guid + '"><a class="registry_link" href="' + u.url + '" onClick="return gotoServerModalHandler(\'' + u.guid + '\');">' + u.name + '</a></li>';
395 a1 += '<li id="registry_action_' + u.guid + '"><a href="#" onclick="deleteRegistryModalHandler(\'' + u.guid + '\',\'' + u.name + '\',\'' + u.url + '\'); return false;"><i class="fa fa-trash-o" aria-hidden="true" style="color: #999;"></i></a></li>';
401 el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #666;" target="_blank">your netdata server list is empty...</a></li>';
403 el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #666;" target="_blank">failed to contact the registry...</a></li>';
405 a1 += '<li><a href="#" onClick="return false;"> </a></li>';
407 el += '<li role="separator" class="divider"></li>' +
408 '<li><a href="//london.netdata.rocks/default.html">EU - London (DigitalOcean.com)</a></li>' +
409 '<li><a href="//atlanta.netdata.rocks/default.html">US - Atlanta (CDN77.com)</a></li>' +
410 '<li><a href="//athens.netdata.rocks/default.html">EU - Athens</a></li>';
411 a1 += '<li role="separator" class="divider"></li>' +
412 '<li><a href="#"> </a></li>' +
413 '<li><a href="#"> </a></li>'+
414 '<li><a href="#"> </a></li>';
417 el += '<li role="separator" class="divider"></li>';
418 a1 += '<li role="separator" class="divider"></li>';
420 el += '<li><a href="https://github.com/firehol/netdata/wiki/mynetdata-menu-item" style="color: #999;" target="_blank">What is this?</a></li>';
421 a1 += '<li><a href="#" style="color: #999;" onclick="switchRegistryModalHandler(); return false;"><i class="fa fa-cog" aria-hidden="true" style="color: #999;"></i></a></li>'
423 document.getElementById('mynetdata_servers').innerHTML = el;
424 document.getElementById('mynetdata_servers2').innerHTML = el;
425 document.getElementById('mynetdata_actions1').innerHTML = a1;
432 <!-- load the dashboard manager - it will do the rest -->
433 <script type="text/javascript" src="dashboard.js?v40"></script>
436 <body data-spy="scroll" data-target="#sidebar">
437 <nav class="navbar navbar-default navbar-fixed-top" role="banner">
438 <div class="container">
439 <nav id="mynetdata_nav" class="collapse navbar-collapse navbar-left hidden-sm hidden-xs" role="navigation" style="padding-right: 20px;">
440 <ul class="nav navbar-nav">
441 <li class="dropdown">
442 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">my-netdata <strong class="caret"></strong></a>
443 <ul class="dropdown-menu scrollable-menu inpagemenu multi-column columns-2" role="menu">
445 <div class="col-sm-6" style="width: 85%; padding-right: 0;">
446 <ul id="mynetdata_servers" class="multi-column-dropdown">
447 <li><a href="#" onclick="return false;" style="color: #999;">loading...</a></li>
450 <div class="col-sm-3 hidden-xs" style="width: 15%; padding-left: 0;">
451 <ul id="mynetdata_actions1" class="multi-column-dropdown">
452 <li style="color: #999;"> </li>
460 <div class="navbar-header">
461 <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".navbar-collapse">
462 <span class="sr-only">Toggle navigation</span>
463 <span class="icon-bar"></span>
464 <span class="icon-bar"></span>
465 <span class="icon-bar"></span>
467 <a href="/" class="navbar-brand" id="hostname">netdata</a>
469 <nav class="collapse navbar-collapse navbar-right" role="navigation">
470 <ul class="nav navbar-nav">
471 <li class="hidden-sm"><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
472 <li class="hidden-sm"><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
473 <li class="hidden-sm" id="updateButton"><a href="#" class="btn" data-toggle="modal" data-target="#updateModal"><i class="fa fa-cloud-download"></i> update</a></li>
474 <li class="hidden-sm"><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
475 <li class="dropdown hidden-md hidden-lg hidden-xs">
476 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">Menu <strong class="caret"></strong></a>
477 <ul class="dropdown-menu scrollable-menu inpagemenu" role="menu">
478 <li><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
479 <li><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
480 <li><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
483 <li class="dropdown hidden-sm hidden-md hidden-lg">
484 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">my-netdata <strong class="caret"></strong></a>
485 <ul id="mynetdata_servers2" class="dropdown-menu scrollable-menu inpagemenu" role="menu">
486 <li><a href="#" onclick="return false;" style="color: #999;">loading...</a></li>
495 <div id="masthead" style="display: none;">
496 <div class="container">
498 <div class="col-md-7">
500 <p class="lead">Real-time performance monitoring, in the greatest possible detail</p>
503 <div class="col-md-5">
504 <div class="well well-lg">
506 <div class="col-md-6">
507 <b>Drag</b> charts to pan.
508 <b>Shift + wheel</b> on them, to zoom in and out.
509 <b>Double-click</b> on them, to reset.
510 <b>Hover</b> on them too!
512 <div class="col-md-6">
513 <div data-netdata="system.intr" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-dygraph-type="line" data-dygraph-strokewidth="3" data-dygraph-smooth="true" data-dygraph-highlightcirclesize="6" data-after="-90" data-height="60px" data-colors="#C66"></div>
522 <div class="container">
524 <div class="col-md-10" role="main">
525 <div id="charts_div"></div>
527 <div class="col-md-2" role="complementary">
528 <nav class="dashboard-sidebar hidden-print hidden-xs hidden-sm" id="sidebar" role="menu"></nav>
533 <div id="footer" class="container" style="display: none;">
535 <div class="col-md-10" role="main">
537 <big><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></big><br/>
538 <i class="fa fa-copyright"></i> Copyright 2016, Costa Tsaousis.<br/>
539 Released under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank">GPL v3 or later</a>.<br/>
543 <a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a> re-distributes these software tools:
545 <i class="fa fa-circle"></i> The excellent <a href="http://dygraphs.com/" target="_blank">Dygraphs.com</a> web chart library,
546 <i class="fa fa-copyright"></i> Copyright 2009, Dan Vanderkam, <a href="http://dygraphs.com/legal.html" target="_blank">MIT License</a>
548 <i class="fa fa-circle"></i> <a href="http://omnipotent.net/jquery.sparkline/" target="_blank">jQuery Sparklines</a> web chart library,
549 <i class="fa fa-copyright"></i> Copyright 2009-2012, Splunk Inc., <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">New BSD License</a>
551 <i class="fa fa-circle"></i> <a href="http://benpickles.github.io/peity/" target="_blank">Peity</a> web chart library,
552 <i class="fa fa-copyright"></i> Copyright 2009-2015, Ben Pickles, <a href="https://github.com/benpickles/peity/blob/master/MIT-LICENCE" target="_blank">MIT License</a>
554 <i class="fa fa-circle"></i> <a href="https://rendro.github.io/easy-pie-chart/" target="_blank">Easy Pie Chart</a> web chart library,
555 <i class="fa fa-copyright"></i> Copyright 2013, Robert Fleischmann, <a href="https://github.com/rendro/easy-pie-chart/blob/master/LICENSE" target="_blank">MIT License</a>
557 <i class="fa fa-circle"></i> <a href="http://bernii.github.io/gauge.js/" target="_blank">Gauge.js</a> web chart library,
558 <i class="fa fa-copyright"></i> Copyright, Bernard Kobos, <a href="http://bernii.github.io/gauge.js/" target="_blank">MIT License</a>
560 <i class="fa fa-circle"></i> <a href="https://jquery.org/" target="_blank">jQuery</a>,
561 <i class="fa fa-copyright"></i> Copyright 2015, jQuery Foundation, <a href="https://jquery.org/license/" target="_blank">MIT License</a>
563 <i class="fa fa-circle"></i> <a href="http://getbootstrap.com/getting-started/" target="_blank">Bootstrap</a>,
564 <i class="fa fa-copyright"></i> Copyright 2015, Twitter, <a href="http://getbootstrap.com/getting-started/#license-faqs" target="_blank">MIT License</a>
566 <i class="fa fa-circle"></i> <a href="http://www.bootstraptoggle.com/" target="_blank">Bootstrap Toggle</a>,
567 <i class="fa fa-copyright"></i> Copyright (c) 2011-2014 Min Hur, The New York Times Company, <a href="https://github.com/minhur/bootstrap-toggle/blob/master/LICENSE" target="_blank">MIT License</a>
569 <i class="fa fa-circle"></i> <a href="https://jamesflorentino.github.io/nanoScrollerJS/" target="_blank">NanoScroller</a>,
570 <i class="fa fa-copyright"></i> Copyright 2012, James Florentino, <a href="https://github.com/jamesflorentino/nanoScrollerJS/blob/master/LICENSE" target="_blank">MIT License</a>
572 <i class="fa fa-circle"></i> <a href="https://github.com/marcj/css-element-queries" target="_blank">CSS Element Queries</a>,
573 <i class="fa fa-copyright"></i> Copyright Marc J. Schmidt, <a href="https://github.com/marcj/css-element-queries/blob/master/LICENSE" target="_blank">MIT License</a>
575 <i class="fa fa-circle"></i> <a href="https://fortawesome.github.io/Font-Awesome/" target="_blank">FontAwesome</a>,
576 <i class="fa fa-copyright"></i> Created by Dave Gandy, Font: <a href="http://scripts.sil.org/OFL" target="_blank">SIL OFL 1.1 License</a>, CSS: <a href="http://opensource.org/licenses/mit-license.html" target="_blank">MIT License</a>
578 <i class="fa fa-circle"></i> <a href="http://www.iconsdb.com/soylent-red-icons/seo-performance-icon.html" target="_blank">IconsDB.com Icons</a>, Icons provided as CC0 1.0 Universal (CC0 1.0) Public Domain Dedication.
580 <i class="fa fa-circle"></i> <a href="http://morrisjs.github.io/morris.js/" target="_blank">morris.js</a>,
581 <i class="fa fa-copyright"></i> Copyright 2013, Olly Smith, <a href="http://morrisjs.github.io/morris.js/" target="_blank">Simplified BSD License</a>
583 <i class="fa fa-circle"></i> <a href="http://raphaeljs.com/" target="_blank">Raphaël</a>,
584 <i class="fa fa-copyright"></i> Copyright 2008, Dmitry Baranovskiy, <a href="http://raphaeljs.com/license.html" target="_blank">MIT License</a>
586 <i class="fa fa-circle"></i> <a href="http://C3js.org/" target="_blank">C3</a>,
587 <i class="fa fa-copyright"></i> Copyright 2013, Masayuki Tanaka, <a href="https://github.com/masayuki0812/c3/blob/master/LICENSE" target="_blank">MIT License</a>
589 <i class="fa fa-circle"></i> <a href="http://D3js.org/" target="_blank">D3</a>,
590 <i class="fa fa-copyright"></i> Copyright 2015, Mike Bostock, <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">BSD License</a>
598 <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
599 <div class="modal-dialog modal-lg" role="document">
600 <div class="modal-content">
601 <div class="modal-header">
602 <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
603 <h4 class="modal-title" id="welcomeModalLabel">Welcome!</h4>
605 <div class="modal-body">
607 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> is the fastest way to visualize metrics. It is a resource efficient, highly optimized system for collecting and visualizing any type of real-time time series data, from CPU usage, disk activity, SQL queries, API calls, web site visitors, etc.
610 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> tries to visualize the truth of <b>now</b>, in its <b>greatest detail</b>, so that you can get insights of what is happening now and what just happened, on your systems and applications.
613 To make a chart in <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b>, you just need a <b>number</b>. Just a number you can read somehow. <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> will turn this number to a real time, interactive, web chart. For collecting these numbers, it supports <a href="https://github.com/firehol/netdata/wiki/External-Plugins" target="_blank">external plugins</a>, even <a href="https://github.com/firehol/netdata/wiki/General-Info---charts.d" target="_blank">shell</a> or <a href="https://github.com/firehol/netdata/wiki/General-Info---charts.d" target="_blank">node.js</a> plugins. Any computer program, in any language, that can print a few lines of text on its standard output, can be a netdata data collector.
616 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> can embed charts everywhere, like this one <div data-netdata="system.cpu" data-dimensions="system" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-show-value-of-system-at="system.cpu.system.modal.1"></div> (my CPU system usage which is <span id="system.cpu.system.modal.1" style="display: inline-block; width: 40px; text-align: right;"></span>%),
617 or this one <div data-netdata="ipv4.tcppackets" data-dimensions="received" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-show-value-of-received-at="ipv4.tcppackets.received.modal.1"></div> (my IPv4 received TCP packets, which are <span id="ipv4.tcppackets.received.modal.1" style="display: inline-block; width: 60px; text-align: right;"></span>/second).
620 You can have <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> charts on your site too. Just give it a <code>div</code> and a real time chart, zoomable and draggable will appear (try it even on these tiny ones - <b>drag</b> them to pan horizontally, <b>shift + drag</b> to zoom in, on <b>chrome shift + mouse wheel</b> to zoom in/out, <b>double click</b> on them to reset them - don't be afraid of <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> performance - <a href="https://github.com/firehol/netdata/wiki/Performance" target="_blank">a raspberry pi 2 can sustain 300 charts updates per second</a>!).
623 For more information please refer to the <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata wiki</a></b>.
626 <div class="modal-footer">
627 <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
633 <div class="modal fade" id="helpModal" tabindex="-1" role="dialog" aria-labelledby="helpModalLabel">
634 <div class="modal-dialog modal-lg" role="document">
635 <div class="modal-content">
636 <div class="modal-header">
637 <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
638 <h4 class="modal-title" id="helpModalLabel">Dashboard Help</h4>
640 <div class="modal-body">
642 <h4>Dygraphs (line, area and stacked area charts)</h4>
645 <ul class="nav nav-tabs" role="tablist">
646 <li role="presentation" class="active"><a href="#help_mouse" aria-controls="help_mouse" role="tab" data-toggle="tab">Mouse Interface</a></li>
647 <li role="presentation"><a href="#help_touch" aria-controls="help_touch" role="tab" data-toggle="tab">Touch Interface</a></li>
651 <div class="tab-content">
652 <div role="tabpanel" class="tab-pane active" id="help_mouse">
654 <h4>Mouse Over / Hover</h4>
655 Mouse over on a chart to show, at its legend, the values for the timestamp under the mouse (the chart will also highlight the point at the chart).
657 All the other visible charts will also show and highlight their values for the same timestamp.
661 <h4>Drag Chart Contents</h4>
662 Drag the contents of a chart to pan it horizontally.
664 All the charts will follow soon after you let the chart alone (this little delay is by design: it speeds up your browser and lets you focus on what you are exploring).
666 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double click</b> a panned chart.
670 <h4>Double Click</h4>
671 Double Click a chart to reset all the charts to their default auto-refreshing state.
675 <h4>SHIFT + Drag</h4>
676 While pressing the shift key, click on the contents of a chart and move the mouse to select an area, to zoom in. The other charts will follow too. Zooming is performed in two phases:
678 <li>The already loaded chart contents are zoomed (low resolution)</li>
679 <li>New data are transferred from the netdata server, to refresh the chart with possibly more detail.</li>
681 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
685 <h4>SHIFT + Mouse Wheel <small>(does not work on firefox and IE/Edge)</small></h4>
686 While pressing the shift key and the mouse pointer is over the contents of a chart, scroll the mouse wheel to zoom in or out. This kind of zooming is aligned to center below the mouse pointer. The other charts will follow too.
688 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
692 <h4>Legend Operations</h4>
693 Click on the label or value of a dimension, will select / un-select this dimension.
695 You can press any of the SHIFT or CONTROL keys and then click on legend labels or values, to select / un-select multiple dimensions.
698 <div role="tabpanel" class="tab-pane" id="help_touch">
701 Single Tap on the contents of a chart to show, at its legend, the values for the timestamp tapped (the chart will also highlight the point at the chart).
703 All the other visible charts will also show and highlight their values for the same timestamp.
707 <h4>Drag Chart Contents</h4>
708 Touch and Drag the contents of a chart to pan it horizontally.
710 All the charts will follow soon after you let the chart alone (this little delay is by design: it speeds up your browser and lets you focus on what you are exploring).
712 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double tap</b> a panned chart.
717 Double tap a chart to reset all the charts to their default auto-refreshing state.
721 <h4>Zoom <small>(does not work on firefox and IE/Edge)</small></h4>
722 With two fingers, zoom in or out.
724 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
728 <h4>Legend Operations</h4>
729 Tap on the label or value of a dimension, will select / un-select this dimension.
734 <div class="modal-footer">
735 <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
741 <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
742 <div class="modal-dialog modal-lg" role="document">
743 <div class="modal-content">
744 <div class="modal-header">
745 <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
746 <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
748 <div class="modal-body">
750 <small style="color: #BBBBBB;">These are browser settings. Each viewer has its own. They do not affect the operation of your netdata server.
752 Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
754 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="resetDashboardOptions(); return false;">here</a>.</small>
756 <div style="padding: 10px;"></div>
759 <ul class="nav nav-tabs" role="tablist">
760 <li role="presentation" class="active"><a href="#settings_performance" aria-controls="settings_performance" role="tab" data-toggle="tab">Performance</a></li>
761 <li role="presentation"><a href="#settings_sync" aria-controls="settings_sync" role="tab" data-toggle="tab">Synchronization</a></li>
762 <li role="presentation"><a href="#settings_visual" aria-controls="settings_visual" role="tab" data-toggle="tab">Visual</a></li>
766 <div class="tab-content">
767 <div role="tabpanel" class="tab-pane active" id="settings_performance">
768 <form id="optionsForm1" method="get" class="form-horizontal">
769 <div class="form-group">
771 <tr class="option-row">
772 <td class="option-control"><input id="stop_updates_when_focus_is_lost" type="checkbox" checked data-toggle="toggle" data-offstyle="danger" data-onstyle="success" data-on="On Focus" data-off="Always" data-width="110px"></td>
773 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
774 <small>When set to <b>On Focus</b>, the charts will stop being updated if the page / tab does not have the focus of the user. When set to <b>Always</b>, the charts will always be refreshed. Set it to <b>On Focus</b> it to lower the CPU requirements of the browser (and extend the battery of laptops and tablets) when this page does not have your focus. Set to <b>Always</b> to work on another window (i.e. change the settings of something) and have the charts auto-refresh in this window.</small>
777 <tr class="option-row">
778 <td class="option-control">
779 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
781 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
782 <small>When set to <b>Non Zero</b>, dimensions that have all their values (within the current view) set to zero will not be transferred from the netdata server (except if all dimensions of the chart are zero, in which case this setting does nothing - all dimensions are transferred and shown). When set to <b>All</b>, all dimensions will always be shown. Set it to <b>Non Zero</b> to lower the data transferred between netdata and your browser, lower the CPU requirements of your browser (fewer lines to draw) and increase the focus on the legends (fewer entries at the legends).</small>
785 <tr class="option-row">
786 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
787 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
788 <small>When set to <b>Destroy</b>, charts that are not in the current viewport of the browser (are above, or below the visible area of the page), will be destroyed and re-created if and when they become visible again. When set to <b>Hide</b>, the not-visible charts will be just hidden, to simplify the DOM and speed up your browser. Set it to <b>Destroy</b>, to lower the memory requirements of your browser. Set it to <b>Hide</b> for smoother page scrolling.</small>
795 <div role="tabpanel" class="tab-pane" id="settings_sync">
796 <form id="optionsForm2" method="get" class="form-horizontal">
797 <div class="form-group">
799 <tr class="option-row">
800 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequential" data-width="110px"></td>
801 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
802 <small>When set to <b>parallel</b>, visible charts are refreshed in parallel (all queries are sent to netdata server in parallel) and are rendered asynchronously. When set to <b>sequential</b> charts are refreshed one after another. Set it to parallel if your browser can cope with it (most modern browsers do), set it to sequential if you work on an older/slower computer.</small>
805 <tr class="option-row" id="concurrent_refreshes_row">
806 <td class="option-control"></td>
807 <td class="option-info">
809 <tr class="option-row">
810 <td class="option-control">
811 <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
813 <td class="option-info">
814 <strong>Shall we re-sync chart refreshes?</strong><br/>
815 <small>When set to <b>Resync</b>, the dashboard will attempt to re-synchronize all the charts so that they are refreshed concurrently. When set to <b>Best Effort</b>, each chart may be refreshed with a little time difference to the others. Normally, the dashboard starts refreshing them in parallel, but depending on the speed of your computer and the network latencies, charts start having a slight time difference. Setting this to <b>Resync</b> will attempt to re-synchronize the charts on every update. Setting it to <b>Best Effort</b> may lower the pressure on your browser and the network.</small>
821 <tr class="option-row">
822 <td class="option-control"><input id="sync_selection" type="checkbox" checked data-toggle="toggle" data-on="Sync" data-off="Don't Sync" data-onstyle="success" data-offstyle="danger" data-width="110px"></td>
823 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
824 <small>When enabled, a selection on one chart will automatically select the same time on all other visible charts and the legends of all visible charts will be updated to show the selected values. When disabled, only the chart getting the user's attention will be selected. Enable it to get better insights of the data. Disable it if you are on a very slow computer that cannot actually do it.</small>
827 <tr class="option-row">
828 <td class="option-control"><input id="sync_pan_and_zoom" type="checkbox" checked data-toggle="toggle" data-on="Sync" data-off="Don't Sync" data-onstyle="success" data-offstyle="danger" data-width="110px"></td>
829 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
830 <small>When enabled, pan and zoom operations on a chart will be replicated to all charts (even the ones that are not currently visible - of course only when they will become visible). When disabled, pan and zoom operations will not be propagated to other charts.</small>
837 <div role="tabpanel" class="tab-pane" id="settings_visual">
838 <form id="optionsForm3" method="get" class="form-horizontal">
839 <div class="form-group">
841 <tr class="option-row">
842 <td class="option-control"><input id="netdata_theme_control" type="checkbox" checked data-toggle="toggle" data-offstyle="danger" data-onstyle="success" data-on="Dark" data-off="White" data-width="110px"></td>
843 <td class="option-info"><strong>Which theme to use?</strong><br/>
844 <small>Netdata comes with two themes: <b>Dark</b> (the default) and <b>White</b>.
846 <b>Switching this will reload the dashboard</b>.
850 <tr class="option-row">
851 <td class="option-control"><input id="show_help" type="checkbox" checked data-toggle="toggle" data-on="Help Me" data-off="No Help" data-width="110px"></td>
852 <td class="option-info"><strong>Do you need help?</strong><br/>
853 <small>Netdata can show some help in some areas to help you use the dashboard. If all these balloons bother you, disable them using this switch.
855 <b>Switching this will reload the dashboard</b>.
859 <tr class="option-row">
860 <td class="option-control"><input id="pan_and_zoom_data_padding" type="checkbox" checked data-toggle="toggle" data-on="Pad" data-off="Don't Pad" data-width="110px"></td>
861 <td class="option-info"><strong>Enable data padding when panning and zooming?</strong><br/>
862 <small>When set to <b>Pad</b> the charts will be padded with more data, both before and after the visible area, thus giving the impression the whole database is loaded. This padding will happen only after the first pan or zoom operation on the chart (initially all charts have only the visible data). When set to <b>Don't Pad</b> only the visible data will be transfered from the netdata server, even after the first pan and zoom operation.</small>
865 <tr class="option-row">
866 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle" data-on="Smooth" data-off="Rough" data-width="110px"></td>
867 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
868 <small>When set to <b>Smooth</b> the charts libraries that support it, will plot smooth curves instead of simple straight lines to connect the points.
870 Keep in mind <a href="http://dygraphs.com" target="_blank">dygraphs</a>, the main charting library in netdata dashboards, can only smooth line charts. It cannot smooth area or stacked charts. When set to <b>Rough</b>, this setting can lower the CPU resources consumed by your browser.</small>
879 <div class="modal-footer">
880 <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
887 <div class="modal fade" id="updateModal" tabindex="-1" role="dialog" aria-labelledby="updateModalLabel">
888 <div class="modal-dialog" role="document">
889 <div class="modal-content">
890 <div class="modal-header">
891 <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
892 <h4 class="modal-title" id="updateModalLabel">Update Check</h4>
894 <div class="modal-body">
895 Your netdata version: <b><code><span id="netdataVersion">Unknown</span></code></b>
897 <div style="padding: 10px;"></div>
898 <div id="versionCheckLog">Not checked yet. Please press the Check Now button.</div>
900 <div class="modal-footer">
901 <a href="#" onclick="notifyForUpdate(true); return false;" type="button" class="btn btn-default">Check Now</a>
902 <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
908 <div class="modal fade" id="deleteRegistryModal" tabindex="-1" role="dialog" aria-labelledby="deleteRegistryModalLabel">
909 <div class="modal-dialog" role="document">
910 <div class="modal-content">
911 <div class="modal-header">
912 <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
913 <h4 class="modal-title" id="deleteRegistryModalLabel">Delete <span id="deleteRegistryServerName"></span>?</h4>
915 <div class="modal-body">
916 You are about to delete, from your personal list of netdata servers, the following server:
917 <p style="text-align: center; padding-top: 10px; padding-bottom: 10px; line-height: 2;">
918 <b><span id="deleteRegistryServerName2"></span></b>
920 <b><span id="deleteRegistryServerURL"></span></b>
922 Are you sure you want to do this?
924 <div style="padding: 10px;"></div>
925 <small>Keep in mind, this server will be added back if and when you visit it again.</small>
927 <div id="deleteRegistryResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
929 <div class="modal-footer">
930 <button type="button" class="btn btn-success" data-dismiss="modal">keep it</button>
931 <a href="#" onclick="notifyForDeleteRegistry(true); return false;" type="button" class="btn btn-danger">delete it</a>
937 <div class="modal fade" id="switchRegistryModal" tabindex="-1" role="dialog" aria-labelledby="switchRegistryModalLabel">
938 <div class="modal-dialog" role="document">
939 <div class="modal-content">
940 <div class="modal-header">
941 <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
942 <h4 class="modal-title" id="switchRegistryModalLabel">Switch Netdata Registry Identity</h4>
944 <div class="modal-body">
945 You can copy and paste the following ID to all your browsers (e.g. work and home).
947 All the browsers with the same ID will identify <b>you</b>, so please don't share this with others.
948 <p style="text-align: center; padding-top: 10px; padding-bottom: 10px; line-height: 2;">
950 <input type="text" class="form-control" id="switchRegistryPersonGUID" placeholder="your personal ID" maxlength="36" autocomplete="off" style="text-align: center; font-size: 1.4em;">
953 Either copy this ID and paste it to another browser, or paste here the ID you have taken from another browser.
954 <p style="padding-top: 10px;"><small>
957 <li>when you switch ID, your previous ID will be lost forever - this is irreversible.</li>
958 <li>both IDs (your old and the new) must list this netdata at their personal lists.</li>
959 <li>both IDs have to be known by the registry: <b><span id="switchRegistryURL"></span></b>.</li>
960 <li>to get a new ID, just clear your browser cookies.</li>
963 <div id="switchRegistryResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
965 <div class="modal-footer">
966 <button type="button" class="btn btn-success" data-dismiss="modal">cancel</button>
967 <a href="#" onclick="notifyForSwitchRegistry(true); return false;" type="button" class="btn btn-danger">impersonate</a>
973 <div class="modal fade" id="gotoServerModal" tabindex="-1" role="dialog" aria-labelledby="gotoServerModalLabel">
974 <div class="modal-dialog" role="document">
975 <div class="modal-content">
976 <div class="modal-header">
977 <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
978 <h4 class="modal-title" id="gotoServerModalLabel"><span id="gotoServerName"></span></h4>
980 <div class="modal-body">
981 Checking known URLs for this server...
982 <div style="padding-top: 20px;">
983 <table id="gotoServerList">
986 <p style="padding-top: 10px;"><small>
987 Checks may fail if you are viewing an HTTPS page and the server to be checked is HTTP only.
989 <div id="gotoServerResponse" style="display: block; width: 100%; text-align: center; padding-top: 20px;"></div>
991 <div class="modal-footer">
992 <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
999 var this_is_demo = null;
1001 if(this_is_demo !== null) return this_is_demo;
1002 this_is_demo = false;
1005 if(typeof document.location.hostname === 'string') {
1006 if(document.location.hostname.endsWith('.my-netdata.io') ||
1007 document.location.hostname.endsWith('.mynetdata.io') ||
1008 document.location.hostname.endsWith('.netdata.rocks') ||
1009 document.location.hostname.endsWith('.firehol.org') ||
1010 document.location.hostname.endsWith('.netdata.online'))
1011 this_is_demo = true;
1018 return this_is_demo;
1022 document.getElementById('masthead').style.display = 'block';
1024 var gotoServerValidateRemaining = 0;
1025 var gotoServerMiddleClick = false;
1026 var gotoServerStop = false;
1027 function gotoServerValidateUrl(id, guid, url) {
1029 if(document.location.toString().startsWith('http://') && url.toString().startsWith('https://'))
1030 // we penalize https only if the current url is http
1031 // to allow the user walk through all its servers.
1034 setTimeout(function() {
1035 document.getElementById('gotoServerList').innerHTML += '<tr><td style="padding-left: 20px;"><a href="' + url + '" target="_blank">' + url + '</a></td><td style="padding-left: 30px;"><code id="' + guid + '-' + id + '-status">checking...</code></td></tr>';
1037 NETDATA.registry.hello(url, function(data) {
1039 // console.log('OK ' + id + ' URL: ' + url);
1040 document.getElementById(guid + '-' + id + '-status').innerHTML = "OK";
1041 var hash = document.location.hash || '';
1043 if(!gotoServerStop) {
1044 gotoServerStop = true;
1046 if(gotoServerMiddleClick) {
1047 window.open(url + hash, '_blank');
1048 gotoServerMiddleClick = false;
1049 document.getElementById('gotoServerResponse').innerHTML = '<b>Opening new window to ' + NETDATA.registry.machines[guid].name + '<br/><a href="' + url + hash + '">' + url + hash + '</a></b><br/>(check your pop-up blocker if it fails)';
1052 document.location = url + hash;
1056 document.getElementById(guid + '-' + id + '-status').innerHTML = "failed!";
1057 gotoServerValidateRemaining--;
1058 if(gotoServerValidateRemaining <= 0) {
1059 gotoServerMiddleClick = false;
1060 document.getElementById('gotoServerResponse').innerHTML = '<b>Sorry! I cannot find any operational URL for this server</b>';
1064 }, (id * 50) + penaldy);
1067 function gotoServerModalHandler(guid) {
1068 // console.log('goto server: ' + guid);
1070 gotoServerStop = false;
1071 var len = NETDATA.registry.machines[guid].alternate_urls.length;
1073 document.getElementById('gotoServerResponse').innerHTML = '';
1074 document.getElementById('gotoServerList').innerHTML = '';
1075 document.getElementById('gotoServerName').innerHTML = NETDATA.registry.machines[guid].name;
1076 $('#gotoServerModal').modal('show');
1078 gotoServerValidateRemaining = len;
1080 gotoServerValidateUrl(len, guid, NETDATA.registry.machines[guid].alternate_urls[len]);
1085 function gotoServerInit() {
1086 $(".registry_link").on('click', function(e) {
1089 gotoServerMiddleClick = true;
1092 gotoServerMiddleClick = false;
1099 function switchRegistryModalHandler() {
1100 document.getElementById('switchRegistryPersonGUID').value = NETDATA.registry.person_guid;
1101 document.getElementById('switchRegistryURL').innerHTML = NETDATA.registry.server;
1102 document.getElementById('switchRegistryResponse').innerHTML = '';
1103 $('#switchRegistryModal').modal('show');
1106 function notifyForSwitchRegistry() {
1107 var n = document.getElementById('switchRegistryPersonGUID').value;
1109 if(n !== '' && n.length === 36) {
1110 NETDATA.registry.switch(n, function(result) {
1111 if(result !== null) {
1112 $('#switchRegistryModal').modal('hide');
1113 NETDATA.registry.init();
1116 document.getElementById('switchRegistryResponse').innerHTML = "<b>Sorry! The registry rejected your request.</b>";
1121 document.getElementById('switchRegistryResponse').innerHTML = "<b>The ID you have entered is not a GUID.</b>";
1124 var deleteRegistryUrl = null;
1125 function deleteRegistryModalHandler(guid, name, url) {
1126 deleteRegistryUrl = url;
1127 document.getElementById('deleteRegistryServerName').innerHTML = name;
1128 document.getElementById('deleteRegistryServerName2').innerHTML = name;
1129 document.getElementById('deleteRegistryServerURL').innerHTML = url;
1130 document.getElementById('deleteRegistryResponse').innerHTML = '';
1131 $('#deleteRegistryModal').modal('show');
1134 function notifyForDeleteRegistry() {
1135 if(deleteRegistryUrl) {
1136 NETDATA.registry.delete(deleteRegistryUrl, function(result) {
1137 if(result !== null) {
1138 deleteRegistryUrl = null;
1139 $('#deleteRegistryModal').modal('hide');
1140 NETDATA.registry.init();
1143 document.getElementById('deleteRegistryResponse').innerHTML = "<b>Sorry! this command was rejected by the registry server.</b>";
1150 sparklines_registry: {},
1153 hostname: 'netdata_server', // will be overwritten by the netdata server
1154 categories: new Array(),
1156 families: new Array(),
1160 chartsMinWidth: 1450,
1162 sparklinesHeight: 60,
1165 // generate a sparkline
1166 // used in the documentation
1167 function sparkline(chart, dimension, units) {
1168 var key = chart + '.' + dimension;
1170 if(typeof units === 'undefined')
1173 if(typeof options.sparklines_registry[key] === 'undefined')
1174 options.sparklines_registry[key] = { count: 1 };
1176 options.sparklines_registry[key].count++;
1178 key = key + '.' + options.sparklines_registry[key].count;
1180 var h = '<div data-netdata="' + chart + '" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-dimensions="' + dimension + '" data-show-value-of-' + dimension + '-at="' + key + '"></div> (<span id="' + key + '" style="display: inline-block; min-width: 50px; text-align: right;">X</span>' + units + ')';
1185 function chartsPerRow(total) {
1186 if(options.chartsPerRow === 0) {
1187 width = Math.floor(total / options.chartsMinWidth);
1188 if(width === 0) width = 1;
1191 else return options.chartsPerRow;
1194 function prioritySort(a, b) {
1195 if(a.priority < b.priority) return -1;
1196 if(a.priority > b.priority) return 1;
1197 if(a.name < b.name) return -1;
1201 function sortObjectByPriority(object) {
1203 var sorted = new Array();
1205 for(var i in object) {
1206 if(typeof idx[i] === 'undefined') {
1212 sorted.sort(function(a, b) {
1213 if(idx[a].priority < idx[b].priority) return -1;
1214 if(idx[a].priority > idx[b].priority) return 1;
1215 if(a < b) return -1;
1223 // ----------------------------------------------------------------------------
1224 // scroll to a section, without changing the browser history
1226 function scrollToId(hash) {
1227 if(hash && hash != '') {
1228 var offset = $('#' + hash).offset();
1229 if(typeof offset !== 'undefined')
1230 $('html, body').animate({ scrollTop: offset.top }, 0);
1233 // we must return false to prevent the default action
1237 // ----------------------------------------------------------------------------
1239 function gaugeChart(title, width, dimensions, colors) {
1240 if(typeof colors === 'undefined')
1243 if(typeof dimensions === 'undefined')
1246 return '<div data-netdata="CHART_UNIQUE_ID"'
1247 + ' data-dimensions="' + dimensions + '"'
1248 + ' data-chart-library="gauge"'
1249 + ' data-gauge-adjust="width"'
1250 + ' data-title="' + title + '"'
1251 + ' data-width="' + width + '"'
1252 + ' data-before="0"'
1253 + ' data-after="-CHART_DURATION"'
1254 + ' data-points="CHART_DURATION"'
1255 + ' data-colors="' + colors + '"'
1256 + ' role="application"></div>';
1259 // ----------------------------------------------------------------------------
1263 title: 'System Overview',
1264 info: 'Overview of the key system metrics.'
1268 title: 'Access Points',
1273 title: 'Quality of Service',
1274 info: 'Netdata collects and visualizes tc class utilization using its <a href="https://github.com/firehol/netdata/blob/master/plugins.d/tc-qos-helper.sh" target="_blank">tc-helper plugin</a>. If you also use <a href="http://firehol.org/#fireqos" target="_blank">FireQOS</a> for setting up QoS, netdata automatically collects interface and class names. If your QoS configuration includes overheads calculation, the values shown here will include these overheads (the total bandwidth for the same interface as reported in the Network Interfaces section, will be lower than the total bandwidth reported here). Also, data collection may have a slight time difference compared to the interface (QoS data collection is implemented with a BASH script, so a shift in data collection of a few milliseconds should be justified).'
1278 title: 'Network Interfaces',
1279 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
1283 title: 'IPv4 Networking',
1288 title: 'IPv6 Networking',
1293 title: 'IP Virtual Server',
1298 title: 'Firewall (netfilter)',
1314 info: 'Charts with performance information for all the system disks. Special care has been given to present disk performance metrics in a way compatible with <code>iostat -x</code>. netdata by default prevents rendering performance charts for individual partitions and unmounted virtual disks. Disabled charts can still be enabled by altering the relative settings in the netdata configuration file.'
1323 title: 'File Server (nfsd)',
1328 title: 'Applications',
1329 info: 'Per application statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics for applications of interest, defined in <code>/etc/netdata/apps_groups.conf</code> (the default is <a href="https://github.com/firehol/netdata/blob/master/conf.d/apps_groups.conf" target="_blank">here</a>). The plugin internally builds a process tree (much like <code>ps fax</code> does), and groups processes together (evaluating both child and parent processes) so that the result is always a chart with a predefined set of dimensions (of course, only application groups found running are reported). The reported values are compatible with <code>top</code>, although the netdata plugin counts also the resources of exited children (unlike <code>top</code> which shows only the resources of the currently running processes). So for processes like shell scripts, the reported values include the resources used by the commands these scripts run within each timeframe.',
1335 info: 'Per user statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user. The reported values are compatible with <code>top</code>, although the netdata plugin counts also the resources of exited children (unlike <code>top</code> which shows only the resources of the currently running processes). So for processes like shell scripts, the reported values include the resources used by the commands these scripts run within each timeframe.',
1340 title: 'User Groups',
1341 info: 'Per user group statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user group. The reported values are compatible with <code>top</code>, although the netdata plugin counts also the resources of exited children (unlike <code>top</code> which shows only the resources of the currently running processes). So for processes like shell scripts, the reported values include the resources used by the commands these scripts run within each timeframe.',
1346 title: 'Netdata Monitoring',
1351 title: 'Example Charts',
1388 title: 'Memory Deduper',
1389 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.'
1392 'netfilter.conntrack': {
1393 title: 'Connection Tracker',
1394 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.'
1397 'netfilter.nfacct': {
1398 title: 'Bandwidth Accounting',
1399 info: 'The following information is read using the <code>nfacct.plugin</code>.'
1402 'netfilter.synproxy': {
1403 title: 'DDoS Protection',
1404 info: 'DDoS Protection performance monitoring read from <code>/proc/net/stat/synproxy</code>. <a href="https://github.com/firehol/firehol/wiki/Working-with-SYNPROXY" target="_blank">SYNPROXY</a> is a TCP SYN packets proxy. It is used to protect any TCP server (like a web server) from SYN floods and similar DDoS attacks. It is a netfilter module, in the Linux kernel (since version 3.12). It is optimized to handle millions of packets per second utilizing all CPUs available without any concurrency locking between the connections. It can be used for any kind of TCP traffic (even encrypted), since it does not interfere with the content itself.'
1410 info: 'The amount of data sent to mysql clients (<strong>out</strong>) and received from mysql clients (<strong>in</strong>).'
1414 info: 'The number of statements executed by the server.<ul>' +
1415 '<li><strong>queries</strong> counts the statements executed within stored SQL programs.</li>' +
1416 '<li><strong>questions</strong> counts the statements sent to the mysql server by mysql clients.</li>' +
1417 '<li><strong>slow queries</strong> counts the number of statements that took more than <a href="http://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_long_query_time" target="_blank">long_query_time</a> seconds to be executed.' +
1418 ' For more information about slow queries check the mysql <a href="http://dev.mysql.com/doc/refman/5.7/en/slow-query-log.html" target="_blank">slow query log</a>.</li>' +
1423 info: 'Usage of the internal handlers of mysql. This chart provides very good insights of what the mysql server is actually doing.' +
1424 ' (if the chart is not showing all these dimensions it is because they are zero - set <strong>Which dimensions to show?</strong> to <strong>All</strong> from the dashboard settings, to render even the zero values)<ul>' +
1425 '<li><strong>commit</strong>, the number of internal <a href="http://dev.mysql.com/doc/refman/5.7/en/commit.html" target="_blank">COMMIT</a> statements.</li>' +
1426 '<li><strong>delete</strong>, the number of times that rows have been deleted from tables.</li>' +
1427 '<li><strong>prepare</strong>, a counter for the prepare phase of two-phase commit operations.</li>' +
1428 '<li><strong>read first</strong>, the number of times the first entry in an index was read. A high value suggests that the server is doing a lot of full index scans; e.g. <strong>SELECT col1 FROM foo</strong>, with col1 indexed.</li>' +
1429 '<li><strong>read key</strong>, the number of requests to read a row based on a key. If this value is high, it is a good indication that your tables are properly indexed for your queries.</li>' +
1430 '<li><strong>read next</strong>, the number of requests to read the next row in key order. This value is incremented if you are querying an index column with a range constraint or if you are doing an index scan.</li>' +
1431 '<li><strong>read prev</strong>, the number of requests to read the previous row in key order. This read method is mainly used to optimize <strong>ORDER BY ... DESC</strong>.</li>' +
1432 '<li><strong>read rnd</strong>, the number of requests to read a row based on a fixed position. A high value indicates you are doing a lot of queries that require sorting of the result. You probably have a lot of queries that require MySQL to scan entire tables or you have joins that do not use keys properly.</li>' +
1433 '<li><strong>read rnd next</strong>, the number of requests to read the next row in the data file. This value is high if you are doing a lot of table scans. Generally this suggests that your tables are not properly indexed or that your queries are not written to take advantage of the indexes you have.</li>' +
1434 '<li><strong>rollback</strong>, the number of requests for a storage engine to perform a rollback operation.</li>' +
1435 '<li><strong>savepoint</strong>, the number of requests for a storage engine to place a savepoint.</li>' +
1436 '<li><strong>savepoint rollback</strong>, the number of requests for a storage engine to roll back to a savepoint.</li>' +
1437 '<li><strong>update</strong>, the number of requests to update a row in a table.</li>' +
1438 '<li><strong>write</strong>, the number of requests to insert a row in a table.</li>' +
1442 'mysql.table_locks': {
1443 info: 'MySQL table locks counters: <ul>' +
1444 '<li><strong>immediate</strong>, the number of times that a request for a table lock could be granted immediately.</li>' +
1445 '<li><strong>waited</strong>, the number of times that a request for a table lock could not be granted immediately and a wait was needed. If this is high and you have performance problems, you should first optimize your queries, and then either split your table or tables or use replication.</li>' +
1450 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.'
1454 info: 'Current system load read from <code>/proc/loadavg</code>.',
1459 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.'
1463 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).'
1466 'system.pgfaults': {
1467 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.'
1472 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.'
1477 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
1482 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.'
1485 'system.interrupts': {
1486 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.'
1489 'system.softirqs': {
1490 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.'
1493 'system.processes': {
1494 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.'
1497 'system.active_processes': {
1498 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
1502 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.'
1505 'system.idlejitter': {
1507 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).'
1511 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>.'
1515 info: 'Total IPv6 Traffic, read from <code>/proc/net/snmp6</code>.'
1519 info: 'System memory, read from <code>/proc/meminfo</code>.'
1523 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
1526 'mem.ksm_savings': {
1528 gaugeChart('Saved', '12%', 'savings', '#0099CC')
1535 return '<div data-netdata="' + id + '"'
1536 + ' data-gauge-max-value="100"'
1537 + ' data-chart-library="gauge"'
1538 + ' data-title="Savings"'
1539 + ' data-units="percentage %"'
1540 + ' data-gauge-adjust="width"'
1541 + ' data-width="12%"'
1542 + ' data-before="0"'
1543 + ' data-after="-CHART_DURATION"'
1544 + ' data-points="CHART_DURATION"'
1545 + ' role="application"></div>';
1551 colors: NETDATA.colors[3]
1593 if(id.match(/.*-ifb$/))
1594 return gaugeChart('Inbound', '12%', '', '#5555AA');
1596 return gaugeChart('Outbound', '12%', '', '#AA9900');
1603 gaugeChart('Received', '12%', 'received'),
1604 gaugeChart('Sent', '12%', 'sent')
1611 gaugeChart('Utilization', '12%', '', '#FF5588')
1613 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.'
1618 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.'
1623 gaugeChart('Read', '12%', 'reads'),
1624 gaugeChart('Write', '12%', 'writes')
1626 info: 'Amount of data transferred to and from disk.'
1630 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).'
1634 info: 'I/O operations currently in progress. This metric is a snapshot - it is not an average over the last interval.'
1637 'netfilter.sockets': {
1640 gaugeChart('Active Connections', '12%', '', '#88AA00')
1646 gaugeChart('New Connections', '12%', 'new', '#5555AA')
1652 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.'
1656 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.'
1660 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.'
1664 info: 'The average I/O operation size.'
1668 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.'
1672 info: 'Disk space utilization. reserved for root is automatically reserved by the system to prevent the root user from getting out of space.'
1675 info: 'inodes (or index nodes) are filesystem objects (e.g. files and directories). On many types of file system implementations, the maximum number of inodes is fixed at filesystem creation, limiting the maximum number of files the filesystem can hold. It is possible for a device to run out of inodes. When this happens, new files cannot be created on the device, even though there may be free space available.'
1677 'apache.connections': {
1678 colors: NETDATA.colors[4],
1680 gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1684 'apache.requests': {
1685 colors: NETDATA.colors[0],
1687 gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1692 colors: NETDATA.colors[3],
1694 gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1701 return '<div data-netdata="' + id + '"'
1702 + ' data-dimensions="busy"'
1703 + ' data-append-options="percentage"'
1704 + ' data-gauge-max-value="100"'
1705 + ' data-chart-library="gauge"'
1706 + ' data-title="Workers Utilization"'
1707 + ' data-units="percentage %"'
1708 + ' data-gauge-adjust="width"'
1709 + ' data-width="12%"'
1710 + ' data-before="0"'
1711 + ' data-after="-CHART_DURATION"'
1712 + ' data-points="CHART_DURATION"'
1713 + ' role="application"></div>';
1718 'apache.bytesperreq': {
1719 colors: NETDATA.colors[3],
1723 'apache.reqpersec': {
1724 colors: NETDATA.colors[4],
1728 'apache.bytespersec': {
1729 colors: NETDATA.colors[6],
1733 'nginx.connections': {
1734 colors: NETDATA.colors[4],
1736 gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1741 colors: NETDATA.colors[0],
1743 gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1748 function anyAttribute(obj, attr, key, def) {
1749 if(typeof obj[key] !== 'undefined') {
1750 if(typeof obj[key][attr] !== 'undefined')
1751 return obj[key][attr];
1756 function menuTitle(chart) {
1757 if(typeof chart.menu_pattern !== 'undefined') {
1758 return anyAttribute(menuData, 'title', chart.menu_pattern, chart.menu_pattern).toString()
1759 + ': ' + chart.type.slice(-(chart.type.length - chart.menu_pattern.length - 1)).toString();
1762 return anyAttribute(menuData, 'title', chart.menu, chart.menu);
1765 function menuInfo(menu) {
1766 return anyAttribute(menuData, 'info', menu, null);
1769 function menuHeight(menu, relative) {
1770 return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1773 function submenuTitle(menu, submenu) {
1774 var key = menu + '.' + submenu;
1775 return anyAttribute(submenuData, 'title', key, submenu);
1778 function submenuInfo(menu, submenu) {
1779 var key = menu + '.' + submenu;
1780 return anyAttribute(submenuData, 'info', key, null);
1783 function submenuHeight(menu, submenu, relative) {
1784 var key = menu + '.' + submenu;
1785 return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1789 function chartInfo(id) {
1790 if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1791 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1796 function chartHeight(id, def) {
1797 if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1798 return def * chartData[id].height;
1804 // ----------------------------------------------------------------------------
1806 // enrich the data structure returned by netdata
1807 // to reflect our menu system and content
1808 function enrichChartData(chart) {
1809 var tmp = chart.type.split('_')[0];
1824 chart.menu = chart.type;
1825 chart.menu_pattern = tmp;
1831 // find a name for this device from fireqos info
1832 // we strip '_(in|out)' or '(in|out)_'
1833 if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family) {
1834 var n = chart.name.split('.')[1];
1835 if(n.endsWith('_in'))
1836 options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_in'));
1837 else if(n.endsWith('_out'))
1838 options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_out'));
1839 else if(n.startsWith('in_'))
1840 options.submenu_names[chart.family] = n.slice(3, n.length);
1841 else if(n.startsWith('out_'))
1842 options.submenu_names[chart.family] = n.slice(4, n.length);
1845 // increase the priority of IFB devices
1846 // to have inbound appear before outbound
1847 if(chart.id.match(/.*-ifb$/))
1853 chart.menu = chart.type;
1857 chart.submenu = chart.family;
1860 // ----------------------------------------------------------------------------
1862 function name2id(s) {
1865 .replace(/\(/g, '_')
1866 .replace(/\)/g, '_')
1867 .replace(/\./g, '_')
1868 .replace(/\//g, '_');
1871 function headMain(charts, duration) {
1874 if(typeof charts['system.swap'] !== 'undefined')
1875 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1876 + ' data-dimensions="free"'
1877 + ' data-append-options="percentage"'
1878 + ' data-chart-library="easypiechart"'
1879 + ' data-title="Free Swap"'
1881 + ' data-easypiechart-max-value="100"'
1882 + ' data-width="8%"'
1883 + ' data-before="0"'
1884 + ' data-after="-' + duration.toString() + '"'
1885 + ' data-points="' + duration.toString() + '"'
1886 + ' data-colors="#DD4400"'
1887 + ' role="application"></div>';
1889 if(typeof charts['system.io'] !== 'undefined') {
1890 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1891 + ' data-dimensions="in"'
1892 + ' data-chart-library="easypiechart"'
1893 + ' data-title="Disk Read"'
1894 + ' data-units="KB / s"'
1895 + ' data-width="10%"'
1896 + ' data-before="0"'
1897 + ' data-after="-' + duration.toString() + '"'
1898 + ' data-points="' + duration.toString() + '"'
1899 + ' role="application"></div>';
1901 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1902 + ' data-dimensions="out"'
1903 + ' data-chart-library="easypiechart"'
1904 + ' data-title="Disk Write"'
1905 + ' data-units="KB / s"'
1906 + ' data-width="10%"'
1907 + ' data-before="0"'
1908 + ' data-after="-' + duration.toString() + '"'
1909 + ' data-points="' + duration.toString() + '"'
1910 + ' role="application"></div>';
1913 if(typeof charts['system.cpu'] !== 'undefined')
1914 head += '<div data-netdata="system.cpu"'
1915 + ' data-chart-library="gauge"'
1916 + ' data-title="CPU"'
1918 + ' data-gauge-max-value="100"'
1919 + ' data-width="18%"'
1920 + ' data-after="-' + duration.toString() + '"'
1921 + ' data-points="' + duration.toString() + '"'
1922 + ' data-colors="' + NETDATA.colors[12] + '"'
1923 + ' role="application"></div>';
1925 if(typeof charts['system.ipv4'] !== 'undefined') {
1926 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1927 + ' data-dimensions="received"'
1928 + ' data-chart-library="easypiechart"'
1929 + ' data-title="IPv4 Inbound"'
1930 + ' data-units="kbps"'
1931 + ' data-width="10%"'
1932 + ' data-before="0"'
1933 + ' data-after="-' + duration.toString() + '"'
1934 + ' data-points="' + duration.toString() + '"'
1935 + ' role="application"></div>';
1937 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1938 + ' data-dimensions="sent"'
1939 + ' data-chart-library="easypiechart"'
1940 + ' data-title="IPv4 Outbound"'
1941 + ' data-units="kbps"'
1942 + ' data-width="10%"'
1943 + ' data-before="0"'
1944 + ' data-after="-' + duration.toString() + '"'
1945 + ' data-points="' + duration.toString() + '"'
1946 + ' role="application"></div>';
1948 else if(typeof charts['system.ipv6'] !== 'undefined') {
1949 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1950 + ' data-dimensions="received"'
1951 + ' data-chart-library="easypiechart"'
1952 + ' data-title="IPv6 Inbound"'
1953 + ' data-units="kbps"'
1954 + ' data-width="10%"'
1955 + ' data-before="0"'
1956 + ' data-after="-' + duration.toString() + '"'
1957 + ' data-points="' + duration.toString() + '"'
1958 + ' role="application"></div>';
1960 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1961 + ' data-dimensions="sent"'
1962 + ' data-chart-library="easypiechart"'
1963 + ' data-title="IPv6 Outbound"'
1964 + ' data-units="kbps"'
1965 + ' data-width="10%"'
1966 + ' data-before="0"'
1967 + ' data-after="-' + duration.toString() + '"'
1968 + ' data-points="' + duration.toString() + '"'
1969 + ' role="application"></div>';
1972 if(typeof charts['system.ram'] !== 'undefined')
1973 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1974 + ' data-dimensions="cached|free"'
1975 + ' data-append-options="percentage"'
1976 + ' data-chart-library="easypiechart"'
1977 + ' data-title="Available RAM"'
1979 + ' data-easypiechart-max-value="100"'
1980 + ' data-width="8%"'
1981 + ' data-after="-' + duration.toString() + '"'
1982 + ' data-points="' + duration.toString() + '"'
1983 + ' data-colors="' + NETDATA.colors[7] + '"'
1984 + ' role="application"></div>';
1989 function generateHeadCharts(type, chart, duration) {
1991 var hcharts = anyAttribute(chartData, type, chart.context, []);
1992 if(hcharts.length > 0) {
1993 var hi = 0, hlen = hcharts.length;
1995 if(typeof hcharts[hi] === 'function')
1996 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1998 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
2005 function renderPage(menus, data) {
2006 var div = document.getElementById('charts_div');
2007 var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
2009 // find the proper duration for per-second updates
2010 var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
2012 var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
2013 var mainhead = headMain(data.charts, duration);
2016 var main = sortObjectByPriority(menus);
2017 var i = 0, len = main.length;
2019 var menu = main[i++];
2021 // generate an entry at the main menu
2023 var menuid = name2id(menu);
2024 sidebar += '<li class=""><a href="#' + menuid + '" onClick="return scrollToId(\'' + menuid + '\');">' + menus[menu].title + '</a><ul class="nav">';
2025 html += '<div role="section"><div role="sectionhead"><h1 id="' + menuid + '" role="heading">' + menus[menu].title + '</h1></div><div id="menu_' + menuid + '" role="document">';
2027 if(menus[menu].info !== null)
2028 html += menus[menu].info;
2030 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
2033 var mhead = '<div class="netdata-chart-row">' + mainhead;
2036 // sort the submenus of this menu
2037 var sub = sortObjectByPriority(menus[menu].submenus);
2038 var si = 0, slen = sub.length;
2040 var submenu = sub[si++];
2042 // generate an entry at the submenu
2043 var submenuid = name2id(menu + '_' + submenu);
2044 sidebar += '<li class><a href="#' + submenuid + '" onClick="return scrollToId(\'' + submenuid + '\');">' + menus[menu].submenus[submenu].title + '</a></li>';
2045 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>';
2047 if(menus[menu].submenus[submenu].info !== null)
2048 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
2050 var head = '<div class="netdata-chart-row">';
2053 // console.log(' \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
2055 // sort the charts in this submenu of this menu
2056 menus[menu].submenus[submenu].charts.sort(prioritySort);
2057 var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
2059 var chart = menus[menu].submenus[submenu].charts[ci++];
2061 // generate the submenu heading charts
2062 mhead += generateHeadCharts('mainheads', chart, duration);
2063 head += generateHeadCharts('heads', chart, duration);
2065 // generate the chart
2066 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
2067 + ' data-width="' + pcent_width.toString() + '%"'
2068 + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
2069 + ' data-before="0"'
2070 + ' data-after="-' + duration.toString() + '"'
2071 + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
2072 + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
2073 + ' role="application"></div>';
2075 // console.log(' \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context + ' height: ' + menus[menu].submenus[submenu].height);
2079 shtml += head + chtml + '</div>';
2083 sidebar += '</ul></li>';
2084 html += mhead + shtml + '</div></div><hr role="separator"/>';
2088 div.innerHTML = html;
2089 document.getElementById('sidebar').innerHTML = sidebar;
2093 function renderChartsAndMenu(data) {
2095 var charts = data.charts;
2097 for(var c in charts) {
2098 enrichChartData(charts[c]);
2101 if(typeof menus[charts[c].menu] === 'undefined') {
2102 menus[charts[c].menu] = {
2103 priority: charts[c].priority,
2105 title: menuTitle(charts[c]),
2106 info: menuInfo(charts[c].menu),
2107 height: menuHeight(charts[c].menu, options.chartsHeight)
2111 if(charts[c].priority < menus[charts[c].menu].priority)
2112 menus[charts[c].menu].priority = charts[c].priority;
2114 // create the submenu
2115 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
2116 menus[charts[c].menu].submenus[charts[c].submenu] = {
2117 priority: charts[c].priority,
2118 charts: new Array(),
2120 info: submenuInfo(charts[c].menu, charts[c].submenu),
2121 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
2125 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
2126 menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
2128 // index the chart in the menu/submenu
2129 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
2132 // propagate the descriptive subname given to QoS
2133 // to all the other submenus with the same name
2134 for(var m in menus) {
2135 for(var s in menus[m].submenus) {
2136 // set the family using a name
2137 if(typeof options.submenu_names[s] !== 'undefined') {
2138 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
2141 menus[m].submenus[s].title = submenuTitle(m, s);
2146 renderPage(menus, data);
2149 function downloadAllCharts(netdata_url) {
2150 if(typeof netdata_url === 'undefined' || netdata_url === null)
2151 netdata_url = NETDATA.serverDefault;
2153 NETDATA.pause(function() {
2155 // download all the charts the server knows
2156 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
2158 options.data = data;
2159 options.hostname = data.hostname;
2160 document.getElementById('hostname').innerHTML = options.hostname;
2161 document.getElementById('hostname').href = NETDATA.serverDefault;
2162 document.title = options.hostname + ' netdata dashboard';
2164 renderChartsAndMenu(data);
2167 // prepareScreen(data);
2169 // due to affix issues, prepareScreen() will unpause
2170 // netdata as needed
2175 // ----------------------------------------------------------------------------
2177 function versionLog(msg) {
2178 document.getElementById('versionCheckLog').innerHTML = msg;
2181 function getNetdataVersion(callback) {
2182 versionLog('Downloading installed version info from netdata...');
2189 .done(function(data) {
2190 data = data.replace(/(\r\n|\n|\r| |\t)/gm,"");
2191 if(data.length !== 40) {
2192 versionLog('Received version string is invalid.');
2196 versionLog('Installed version of netdata is ' + data);
2197 document.getElementById('netdataVersion').innerHTML = data;
2202 versionLog('Failed to download installed version info from netdata!');
2207 function getGithubLatestCommit(callback) {
2208 versionLog('Downloading latest version info from github...');
2211 url: 'https://api.github.com/repos/firehol/netdata/commits',
2215 .done(function(data) {
2216 versionLog('Latest version info from github is ' + data[0].sha);
2217 callback(data[0].sha);
2220 versionLog('Failed to download installed version info from github!');
2225 function checkForUpdate(callback) {
2226 getNetdataVersion(function(sha1) {
2227 if(sha1 === null) callback(null, null);
2229 getGithubLatestCommit(function(sha2) {
2230 callback(sha1, sha2);
2237 var updateBlinkCounter = 0;
2238 function notifyForUpdate(force) {
2239 versionLog('<p>checking for updates...</p>');
2241 var now = new Date().getTime();
2243 if(typeof force === 'undefined' || force !== true) {
2244 var last = loadLocalStorage('last_update_check');
2246 if(typeof last === 'string')
2247 last = parseInt(last);
2251 if(now - last < 3600000 * 8) {
2252 // no need to check it - too soon
2257 checkForUpdate(function(sha1, sha2) {
2262 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>');
2264 else if(sha2 === null) {
2266 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>');
2268 else if(sha1 === sha2) {
2270 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>');
2274 var compare = 'https://github.com/firehol/netdata/compare/' + sha1.toString() + '...' + sha2.toString();
2276 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>');
2278 function updateButtonBlink() {
2279 updateBlinkCounter--;
2280 if(updateBlinkCounter > 0)
2281 $('#updateButton').fadeOut(500).fadeIn(500, updateButtonBlink);
2284 if(updateBlinkCounter === 0) {
2285 updateBlinkCounter = 300;
2286 updateButtonBlink();
2291 saveLocalStorage('last_update_check', now.toString());
2295 // ----------------------------------------------------------------------------
2297 function getUrlParameter(sParam) {
2298 var sPageURL = decodeURIComponent(window.location.search.substring(1)),
2299 sURLVariables = sPageURL.split('&'),
2303 for (i = 0; i < sURLVariables.length; i++) {
2304 sParameterName = sURLVariables[i].split('=');
2306 if (sParameterName[0] === sParam) {
2307 return sParameterName[1] === undefined ? true : sParameterName[1];
2312 function finalizePage() {
2313 // resize all charts - without starting the background thread
2314 // this has to be done while NETDATA is paused
2315 // if we ommit this, the affix menu will be wrong, since all
2316 // the Dom elements are initially zero-sized
2319 var before = 0, after = 0, nowelcome = 0;
2320 after = getUrlParameter('force_after_ms');
2321 before = getUrlParameter('force_before_ms');
2322 nowelcome = (getUrlParameter('nowelcome') === true)?true:false;
2324 if(before > 0 && after > 0) {
2326 NETDATA.globalPanAndZoom.setMaster(NETDATA.options.targets[0], after, before);
2329 // ------------------------------------------------------------------------
2330 // https://github.com/viralpatel/jquery.shorten/blob/master/src/jquery.shorten.js
2331 $.fn.shorten = function(settings) {
2337 ellipsesText: "...",
2338 moreText: '<i class="fa fa-expand" aria-hidden="true"></i> show more information',
2339 lessText: '<i class="fa fa-compress" aria-hidden="true"></i> show less information',
2340 onLess: function() { NETDATA.onscroll(); },
2341 onMore: function() { NETDATA.onscroll(); },
2347 $.extend(config, settings);
2350 if ($(this).data('jquery.shorten') && !config.force) {
2353 $(this).data('jquery.shorten', true);
2355 $(document).off("click", '.morelink');
2360 var $this = $(this);
2361 if ($this.hasClass('less')) {
2362 $this.removeClass('less');
2363 $this.html(config.moreText);
2364 $this.parent().prev().animate({'height':'0'+'%'}, 0, function () { $this.parent().prev().prev().show(); }).hide(0, function() {
2369 $this.addClass('less');
2370 $this.html(config.lessText);
2371 $this.parent().prev().animate({'height':'100'+'%'}, 0, function () { $this.parent().prev().prev().hide(); }).show(0, function() {
2379 return this.each(function() {
2380 var $this = $(this);
2382 var content = $this.html();
2383 var contentlen = $this.text().length;
2384 if (contentlen > config.showChars + config.minHideChars) {
2385 var c = content.substr(0, config.showChars);
2386 if (c.indexOf('<') >= 0) // If there's HTML don't want to cut it
2388 var inTag = false; // I'm in a tag?
2389 var bag = ''; // Put the characters to be shown here
2390 var countChars = 0; // Current bag size
2391 var openTags = []; // Stack for opened tags, so I can close them later
2394 for (var i = 0, r = 0; r <= config.showChars; i++) {
2395 if (content[i] == '<' && !inTag) {
2398 // This could be "tag" or "/tag"
2399 tagName = content.substring(i + 1, content.indexOf('>', i));
2401 // If its a closing tag
2402 if (tagName[0] == '/') {
2405 if (tagName != '/' + openTags[0]) {
2406 config.errMsg = 'ERROR en HTML: the top of the stack should be the tag that closes';
2408 openTags.shift(); // Pops the last tag from the open tag stack (the tag is closed in the retult HTML!)
2412 // There are some nasty tags that don't have a close tag like <br/>
2413 if (tagName.toLowerCase() != 'br') {
2414 openTags.unshift(tagName); // Add to start the name of the tag that opens
2418 if (inTag && content[i] == '>') {
2422 if (inTag) { bag += content.charAt(i); } // Add tag name chars to the result
2425 if (countChars <= config.showChars) {
2426 bag += content.charAt(i); // Fix to ie 7 not allowing you to reference string characters using the []
2428 } else // Now I have the characters needed
2430 if (openTags.length > 0) // I have unclosed tags
2432 //console.log('They were open tags');
2433 //console.log(openTags);
2434 for (j = 0; j < openTags.length; j++) {
2435 //console.log('Cierro tag ' + openTags[j]);
2436 bag += '</' + openTags[j] + '>'; // Close all tags that were opened
2438 // You could shift the tag from the stack to check if you end with an empty stack, that means you have closed all open tags
2445 c = $('<div/>').html(bag + '<span class="ellip">' + config.ellipsesText + '</span>').html();
2447 c+=config.ellipsesText;
2450 var html = '<div class="shortcontent">' + c +
2451 '</div><div class="allcontent">' + content +
2452 '</div><span><a href="javascript://nop/" class="morelink">' + config.moreText + '</a></span>';
2455 $this.find(".allcontent").hide(); // Hide all text
2456 $('.shortcontent p:last', $this).css('margin-bottom', 0); //Remove bottom margin on last paragraph as it's likely shortened
2461 $(".chart-message").shorten();
2462 // ------------------------------------------------------------------------
2464 // let it run (update the charts)
2467 // check if we have to jump to a specific section
2468 scrollToId(location.hash.replace('#',''));
2470 /* activate bootstrap sidebar (affix) */
2471 $('#sidebar').affix({
2473 top: (isdemo())?150:0,
2478 /* fix scrolling of very long affix lists
2479 http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
2481 $('#sidebar').on('affixed.bs.affix', function() {
2482 $(this).removeAttr('style');
2485 /* activate bootstrap scrollspy (needed for sidebar) */
2486 $(document.body).scrollspy({
2488 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
2491 // change the URL based on the current position of the screen
2492 $('#sidebar').on('activate.bs.scrollspy', function (e) {
2493 var el = $(e.target);
2494 if(el.find('ul').size() == 0)
2495 history.replaceState(null, document.title, el.find('a').attr('href'));
2498 document.getElementById('footer').style.display = 'block';
2500 var update_options_modal = function() {
2501 // console.log('update_options_modal');
2503 var sync_option = function(option) {
2504 var self = $('#' + option);
2506 if(self.prop('checked') !== NETDATA.getOption(option)) {
2507 // console.log('switching ' + option.toString());
2508 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
2512 var theme_sync_option = function(option) {
2513 var self = $('#' + option);
2515 self.bootstrapToggle(netdataTheme === 'slate'?'on':'off');
2518 sync_option('eliminate_zero_dimensions');
2519 sync_option('destroy_on_hide');
2520 sync_option('parallel_refresher');
2521 sync_option('concurrent_refreshes');
2522 sync_option('sync_selection');
2523 sync_option('sync_pan_and_zoom');
2524 sync_option('stop_updates_when_focus_is_lost');
2525 sync_option('smooth_plot');
2526 sync_option('pan_and_zoom_data_padding');
2527 sync_option('show_help');
2528 theme_sync_option('netdata_theme_control');
2530 if(NETDATA.getOption('parallel_refresher') === false) {
2531 $('#concurrent_refreshes_row').hide();
2534 $('#concurrent_refreshes_row').show();
2537 NETDATA.setOption('setOptionCallback', update_options_modal);
2539 // handle options changes
2540 $('#eliminate_zero_dimensions').change(function() { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
2541 $('#destroy_on_hide').change(function() { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
2542 $('#parallel_refresher').change(function() { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
2543 $('#concurrent_refreshes').change(function() { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
2544 $('#sync_selection').change(function() { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
2545 $('#sync_pan_and_zoom').change(function() { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
2546 $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
2547 $('#smooth_plot').change(function() { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
2548 $('#pan_and_zoom_data_padding').change(function() { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
2549 $('#show_help').change(function() { NETDATA.setOption('show_help', $(this).prop('checked')); location.reload(); });
2551 // this has to be the last
2552 // it reloads the page
2553 $('#netdata_theme_control').change(function() {
2554 if(setTheme($(this).prop('checked')?'slate':'white'))
2558 $('#updateModal').on('shown.bs.modal', function() {
2559 notifyForUpdate(true);
2562 $('#deleteRegistryModal').on('hidden.bs.modal', function() {
2563 deleteRegistryGuid = null;
2568 setTimeout(function() {
2569 $('#welcomeModal').modal();
2573 // google analytics when this is used for the home page of the demo sites
2574 // this does not run on user's installations
2575 setTimeout(function() {
2576 (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
2577 (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
2578 m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
2579 })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
2581 ga('create', 'UA-64295674-3', 'auto');
2582 ga('send', 'pageview');
2585 else notifyForUpdate();
2588 function resetDashboardOptions() {
2589 var help = NETDATA.options.current.show_help;
2591 NETDATA.resetOptions();
2592 if(setTheme('slate'))
2595 if(help !== NETDATA.options.current.show_help)
2599 downloadAllCharts();