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<article itemscope itemtype="http://schema.org/Article"><div class="article__header"><header><h1 style="color:Tomato;">Netdata outil de surveillance en temps réel des performances pour les systèmes d'exploitation basés sur Linux</h1></header></div><meta itemprop="headline" content="Netdata outil de surveillance en temps réel des performances pour les systèmes d'exploitation basés sur Linux"><div class="article__info clearfix"><ul class="left-col menu"><li>
2024-11-08 14:10:33 +01:00
<a class="button button--secondary button--pill button--sm" style="color:#00FFFF" href="/archive.html?tag=outils">outils</a>
2024-10-31 20:18:37 +01:00
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<i class="far fa-calendar-alt"></i>&nbsp;<span title="Création" style="color:#FF00FF">&nbsp;5&nbsp;mars&nbsp;&nbsp;2018</span></li></ul></div><meta itemprop="datePublished" content="2018-03-05T00:00:00+01:00">
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<summary><b>Afficher/cacher Sommaire</b></summary>
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</details><h2 id="netdata-performance-monitoring-tool">Netdata Performance Monitoring Tool</h2>
<p>Netdata est un outil gratuit open source de surveillance en temps réel des performances pour les systèmes dexploitation basés sur Linux. Netdata est livré avec des tableaux de bord Web simples, faciles à utiliser et extensibles qui peuvent être utilisés pour visualiser les processus et les services sur votre système. Vous pouvez surveiller le CPU, lutilisation de la RAM, les entrées/sorties de disque, le trafic réseau et Postfix à laide de Netdata. Netdata fonctionne sur tous les systèmes comme les machines physiques, machines virtuelles, conteneurs et périphériques IoT sans perturber leur fonctionnement de base.</p>
<p>Netdata ,aperçu des fonctionnalités</p>
<ul>
<li>Tableaux de bord interactifs bootstrap.</li>
<li>Prend en charge les seuils dynamiques, les modèles dalarme, lhystérésis et les méthodes de notification.</li>
<li>Vous pouvez créer facilement des tableaux de bord personnalisés en HTML.</li>
<li>Recueille des milliers dinformation sur le serveur par seconde, avec seulement 1% dutilisation CPU dun seul cœur.</li>
<li>Il surveille en particulier, le CPU, la mémoire, les disques, les disques, les Iptables, les processus, les interfaces réseau, les serveurs NFS, les serveurs Apache, les bases de données Redis, les bases de données Postgres, les bases de données MySQL, les serveurs de messagerie Tomcat, Postfix et Exim, les périphériques SNMP, les serveurs proxy Squid et bien dautres.</li>
</ul>
<h3 id="installer-netdata-à-partir-de-la-source">Installer Netdata à partir de la source</h3>
<p>Avant dinstaller Netdata, nous devons installer quelques paquets nécessaires.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo apt install -y zlib1g-dev uuid-dev libmnl-dev gcc make git autoconf autoconf-archive autogen automake pkg-config curl net-tools
</code></pre></div></div>
<p>Une fois tous les paquets installés, téléchargez le code source de Netdata depuis github à laide de la commande git.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>git clone https://github.com/firehol/netdata.git --depth=1
</code></pre></div></div>
<p>Allez dans le répertoirenetdataet lancez le script dinstallationnetdata-installer.shavec les privilèges sudo.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>cd netdata/
sudo ./netdata-installer.sh
</code></pre></div></div>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>
^
|.-. .-. .-. .-. . netdata
| '-' '-' '-' '-' real-time performance monitoring, done right!
+----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+---&gt;
You are about to build and install netdata to your system.
It will be installed at these locations:
- the daemon at /usr/sbin/netdata
- config files in /etc/netdata
- web files in /usr/share/netdata
- plugins in /usr/libexec/netdata
- cache files in /var/cache/netdata
- db files in /var/lib/netdata
- log files in /var/log/netdata
- pid file at /var/run/netdata.pid
- logrotate file at /etc/logrotate.d/netdata
This installer allows you to change the installation path.
Press Control-C and run the same command with --help for help.
Press ENTER to build and install netdata to your system &gt;
</code></pre></div></div>
<p>Appuyez sur Entrée pour poursuivre linstallation de Netdata.</p>
<p>Une fois linstallation terminée, vous obtiendrez le résultat suivant (la compilation peut nécessiter une durée plus ou moins longue suivant le processeur et la mémoire)</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>netdata-updater.sh can work from cron. It will trigger an email from cron
only if it fails (it does not print anything when it can update netdata).
Run this to automatically check and install netdata updates once per day:
sudo ln -s /home/oli/netdata/netdata-updater.sh /etc/cron.daily/netdata-updater
--- We are done! ---
^
|.-. .-. .-. .-. .-. . netdata .-. .-
| '-' '-' '-' '-' '-' is installed and running now! -' '-'
+----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+---&gt;
enjoy real-time performance and health monitoring...
</code></pre></div></div>
<p>Netdata monitoring tool fournit un script de service pour le système systemd. Démarrer netdata et activer le pour une exécution automatique au démarrage</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo systemctl start netdata
sudo systemctl enable netdata
</code></pre></div></div>
<p>Par défaut, il sexécute sur le port 19999, vérifiez le port avec netstat et assurez-vous que vous avez le port 19999 à létatLISTEN.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>netstat -plntu
</code></pre></div></div>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>tcp 0 0 0.0.0.0:19999 0.0.0.0:* LISTEN 10432/netdata
</code></pre></div></div>
<h3 id="nginx-module-stub_status">Nginx module “stub_status”</h3>
<p><strong>Pour surveiller le serveur web de Nginx</strong> à laide de loutil de surveillance Netdata, nous avons besoin dune configuration supplémentaire. En premier lieu, vérifier la présence du module <strong>with-http_stub_status_module</strong> de nginx dans la configuration de lhôte virtuel.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>nginx -V
</code></pre></div></div>
<p>Modifier la configuration par défaut <strong>/etc/nginx/conf.d/default.conf</strong> et ajouter avant le <code class="language-plaintext highlighter-rouge">}</code> de fin</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code> location /stub_status {
stub_status;
# Security: Only allow access from the IP below.
allow 127.0.0.1;
# Deny anyone else
deny all;
}
</code></pre></div></div>
<p>Vérifier la configuration de nginx et redémarrer le service</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>nginx -t
systemctl restart nginx
</code></pre></div></div>
<p>Le module stub_statusde Nginx a été activé, vérifier avec la commande curl</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>curl http://127.0.0.1/stub_status
</code></pre></div></div>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>Active connections: 1
server accepts handled requests
1 1 1
Reading: 0 Writing: 1 Waiting: 0
</code></pre></div></div>
<h3 id="configurer-netdata-pour-surveiller-nginx">Configurer Netdata pour surveiller Nginx</h3>
<p>Netdata fournit des modules Python pour la surveillance de nos applications installées sur le système, y compris les serveurs web Nginx. Pour surveiller Nginx à laide de Netdata, nous avons besoin du modulestub_statusde Nginx qui est activé.</p>
<p>Se rendre dans le répertoire de configuration de netdata et éditer le fichier <strong>python.d/nginx.conf</strong></p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>cd /etc/netdata/
nano python.d/nginx.conf
</code></pre></div></div>
<p>Vérifier ou modifier la configuration</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>localhost:
name : 'local'
url : 'http://localhost/stub_status'
localipv4:
name : 'local'
url : 'http://127.0.0.1/stub_status'
localipv6:
name : 'local'
url : 'http://[::1]/stub_status'
</code></pre></div></div>
<p>Redémarrez maintenant Netdata en utilisant systemctl.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>systemctl restart netdata
</code></pre></div></div>
<p>La configuration de Netdata pour la surveillance de Nginx est terminée.</p>
<h3 id="vérifier-le-fonctionnement-de-netdata">Vérifier le fonctionnement de Netdata</h3>
<p>Adresse http://localhost:19999/</p>
<h3 id="liens">Liens</h3>
<ul>
<li><a href="https://my-netdata.io/">https://my-netdata.io/</a></li>
<li><a href="https://www.howtoforge.com/tutorial/how-to-install-and-use-netdata-performance-monitoring-tool-on-debian-9/">How to Install and Use Netdata Performance Monitoring Tool on Debian 9</a></li>
<li><a href="https://jesuisadmin.fr/netdata-solution-monitoring-legere-serveur-linux/">Netdata - Une solution monitoring légère pour votre serveur Linux</a></li>
<li><a href="https://github.com/firehol/netdata/wiki/Running-behind-nginx">Netdata running behind nginx</a></li>
</ul>
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'use strict'
var _$utils_9 = {
merge: merge,
isJSON: isJSON
}
function merge (defaultParams, mergeParams) {
const mergedOptions = {}
for (const option in defaultParams) {
mergedOptions[option] = defaultParams[option]
if (typeof mergeParams[option] !== 'undefined') {
mergedOptions[option] = mergeParams[option]
}
}
return mergedOptions
}
function isJSON (json) {
try {
if (json instanceof Object && JSON.parse(JSON.stringify(json))) {
return true
}
return false
} catch (err) {
return false
}
}
var _$src_8 = {};
(function (window) {
'use strict'
let options = {
searchInput: null,
resultsContainer: null,
json: [],
success: Function.prototype,
searchResultTemplate: '<li><a href="{url}" title="{desc}">{title}</a></li>',
templateMiddleware: Function.prototype,
sortMiddleware: function () {
return 0
},
noResultsText: 'No results found',
limit: 10,
fuzzy: false,
debounceTime: null,
exclude: []
}
let debounceTimerHandle
const debounce = function (func, delayMillis) {
if (delayMillis) {
clearTimeout(debounceTimerHandle)
debounceTimerHandle = setTimeout(func, delayMillis)
} else {
func.call()
}
}
const requiredOptions = ['searchInput', 'resultsContainer', 'json']
/* removed: const _$Templater_7 = require('./Templater') */;
/* removed: const _$Repository_4 = require('./Repository') */;
/* removed: const _$JSONLoader_2 = require('./JSONLoader') */;
const optionsValidator = _$OptionsValidator_3({
required: requiredOptions
})
/* removed: const _$utils_9 = require('./utils') */;
window.SimpleJekyllSearch = function (_options) {
const errors = optionsValidator.validate(_options)
if (errors.length > 0) {
throwError('You must specify the following required options: ' + requiredOptions)
}
options = _$utils_9.merge(options, _options)
_$Templater_7.setOptions({
template: options.searchResultTemplate,
middleware: options.templateMiddleware
})
_$Repository_4.setOptions({
fuzzy: options.fuzzy,
limit: options.limit,
sort: options.sortMiddleware,
exclude: options.exclude
})
if (_$utils_9.isJSON(options.json)) {
initWithJSON(options.json)
} else {
initWithURL(options.json)
}
const rv = {
search: search
}
typeof options.success === 'function' && options.success.call(rv)
return rv
}
function initWithJSON (json) {
_$Repository_4.put(json)
registerInput()
}
function initWithURL (url) {
_$JSONLoader_2.load(url, function (err, json) {
if (err) {
throwError('failed to get JSON (' + url + ')')
}
initWithJSON(json)
})
}
function emptyResultsContainer () {
options.resultsContainer.innerHTML = ''
}
function appendToResultsContainer (text) {
options.resultsContainer.innerHTML += text
}
function registerInput () {
options.searchInput.addEventListener('input', function (e) {
if (isWhitelistedKey(e.which)) {
emptyResultsContainer()
debounce(function () { search(e.target.value) }, options.debounceTime)
}
})
}
function search (query) {
if (isValidQuery(query)) {
emptyResultsContainer()
render(_$Repository_4.search(query), query)
}
}
function render (results, query) {
const len = results.length
if (len === 0) {
return appendToResultsContainer(options.noResultsText)
}
for (let i = 0; i < len; i++) {
results[i].query = query
appendToResultsContainer(_$Templater_7.compile(results[i]))
}
}
function isValidQuery (query) {
return query && query.length > 0
}
function isWhitelistedKey (key) {
return [13, 16, 20, 37, 38, 39, 40, 91].indexOf(key) === -1
}
function throwError (message) {
throw new Error('SimpleJekyllSearch --- ' + message)
}
})(window)
}());
</script>
<!-- Configuration -->
<script>
SimpleJekyllSearch({
searchInput: document.getElementById('search-input'),
resultsContainer: document.getElementById('results-container'),
noResultsText: '<p>Aucun résultat!</p>',
json: '/search.json',
searchResultTemplate: '<li><a href="{url}">{date}&nbsp;{title}</a>&nbsp;(Création {create})</li>'
})
</script>
</div></div>
<script>(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function scrollToAnchor(anchor, duration, callback) {
var $root = this;
$root.animate({ scrollTop: $(anchor).position().top }, duration, function() {
window.history.replaceState(null, '', window.location.href.split('#')[0] + anchor);
callback && callback();
});
}
$.fn.scrollToAnchor = scrollToAnchor;
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function affix(options) {
var $root = this, $window = $(window), $scrollTarget, $scroll,
offsetBottom = 0, scrollTarget = window, scroll = window.document, disabled = false, isOverallScroller = true,
rootTop, rootLeft, rootHeight, scrollBottom, rootBottomTop,
hasInit = false, curState;
function setOptions(options) {
var _options = options || {};
_options.offsetBottom && (offsetBottom = _options.offsetBottom);
_options.scrollTarget && (scrollTarget = _options.scrollTarget);
_options.scroll && (scroll = _options.scroll);
_options.disabled !== undefined && (disabled = _options.disabled);
$scrollTarget = $(scrollTarget);
isOverallScroller = window.isOverallScroller($scrollTarget[0]);
$scroll = $(scroll);
}
function preCalc() {
top();
rootHeight = $root.outerHeight();
rootTop = $root.offset().top + (isOverallScroller ? 0 : $scrollTarget.scrollTop());
rootLeft = $root.offset().left;
}
function calc(needPreCalc) {
needPreCalc && preCalc();
scrollBottom = $scroll.outerHeight() - offsetBottom - rootHeight;
rootBottomTop = scrollBottom - rootTop;
}
function top() {
if (curState !== 'top') {
$root.removeClass('fixed').css({
left: 0,
top: 0
});
curState = 'top';
}
}
function fixed() {
if (curState !== 'fixed') {
$root.addClass('fixed').css({
left: rootLeft + 'px',
top: 0
});
curState = 'fixed';
}
}
function bottom() {
if (curState !== 'bottom') {
$root.removeClass('fixed').css({
left: 0,
top: rootBottomTop + 'px'
});
curState = 'bottom';
}
}
function setState() {
var scrollTop = $scrollTarget.scrollTop();
if (scrollTop >= rootTop && scrollTop <= scrollBottom) {
fixed();
} else if (scrollTop < rootTop) {
top();
} else {
bottom();
}
}
function init() {
if(!hasInit) {
var interval, timeout;
calc(true); setState();
// run calc every 100 millisecond
interval = setInterval(function() {
calc();
}, 100);
timeout = setTimeout(function() {
clearInterval(interval);
}, 45000);
window.pageLoad.then(function() {
setTimeout(function() {
clearInterval(interval);
clearTimeout(timeout);
}, 3000);
});
$scrollTarget.on('scroll', function() {
disabled || setState();
});
$window.on('resize', function() {
disabled || (calc(true), setState());
});
hasInit = true;
}
}
setOptions(options);
if (!disabled) {
init();
}
$window.on('resize', window.throttle(function() {
init();
}, 200));
return {
setOptions: setOptions,
refresh: function() {
calc(true, { animation: false }); setState();
}
};
}
$.fn.affix = affix;
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function toc(options) {
var $root = this, $window = $(window), $scrollTarget, $scroller, $tocUl = $('<ul class="toc toc--ellipsis"></ul>'), $tocLi, $headings, $activeLast, $activeCur,
selectors = 'h1,h2,h3', container = 'body', scrollTarget = window, scroller = 'html, body', disabled = false,
headingsPos, scrolling = false, hasRendered = false, hasInit = false;
function setOptions(options) {
var _options = options || {};
_options.selectors && (selectors = _options.selectors);
_options.container && (container = _options.container);
_options.scrollTarget && (scrollTarget = _options.scrollTarget);
_options.scroller && (scroller = _options.scroller);
_options.disabled !== undefined && (disabled = _options.disabled);
$headings = $(container).find(selectors).filter('[id]');
$scrollTarget = $(scrollTarget);
$scroller = $(scroller);
}
function calc() {
headingsPos = [];
$headings.each(function() {
headingsPos.push(Math.floor($(this).position().top));
});
}
function setState(element, disabled) {
var scrollTop = $scrollTarget.scrollTop(), i;
if (disabled || !headingsPos || headingsPos.length < 1) { return; }
if (element) {
$activeCur = element;
} else {
for (i = 0; i < headingsPos.length; i++) {
if (scrollTop >= headingsPos[i]) {
$activeCur = $tocLi.eq(i);
} else {
$activeCur || ($activeCur = $tocLi.eq(i));
break;
}
}
}
$activeLast && $activeLast.removeClass('active');
($activeLast = $activeCur).addClass('active');
}
function render() {
if(!hasRendered) {
$root.append($tocUl);
$headings.each(function() {
var $this = $(this);
$tocUl.append($('<li></li>').addClass('toc-' + $this.prop('tagName').toLowerCase())
.append($('<a></a>').text($this.text()).attr('href', '#' + $this.prop('id'))));
});
$tocLi = $tocUl.children('li');
$tocUl.on('click', 'a', function(e) {
e.preventDefault();
var $this = $(this);
scrolling = true;
setState($this.parent());
$scroller.scrollToAnchor($this.attr('href'), 400, function() {
scrolling = false;
});
});
}
hasRendered = true;
}
function init() {
var interval, timeout;
if(!hasInit) {
render(); calc(); setState(null, scrolling);
// run calc every 100 millisecond
interval = setInterval(function() {
calc();
}, 100);
timeout = setTimeout(function() {
clearInterval(interval);
}, 45000);
window.pageLoad.then(function() {
setTimeout(function() {
clearInterval(interval);
clearTimeout(timeout);
}, 3000);
});
$scrollTarget.on('scroll', function() {
disabled || setState(null, scrolling);
});
$window.on('resize', window.throttle(function() {
if (!disabled) {
render(); calc(); setState(null, scrolling);
}
}, 100));
}
hasInit = true;
}
setOptions(options);
if (!disabled) {
init();
}
$window.on('resize', window.throttle(function() {
init();
}, 200));
return {
setOptions: setOptions
};
}
$.fn.toc = toc;
});
})();
/*(function () {
})();*/
</script><script>
/* toc must before affix, since affix need to konw toc' height. */(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
var TOC_SELECTOR = window.TEXT_VARIABLES.site.toc.selectors;
window.Lazyload.js(SOURCES.jquery, function() {
var $window = $(window);
var $articleContent = $('.js-article-content');
var $tocRoot = $('.js-toc-root'), $col2 = $('.js-col-aside');
var toc;
var tocDisabled = false;
var hasSidebar = $('.js-page-root').hasClass('layout--page--sidebar');
var hasToc = $articleContent.find(TOC_SELECTOR).length > 0;
function disabled() {
return $col2.css('display') === 'none' || !hasToc;
}
tocDisabled = disabled();
toc = $tocRoot.toc({
selectors: TOC_SELECTOR,
container: $articleContent,
scrollTarget: hasSidebar ? '.js-page-main' : null,
scroller: hasSidebar ? '.js-page-main' : null,
disabled: tocDisabled
});
$window.on('resize', window.throttle(function() {
tocDisabled = disabled();
toc && toc.setOptions({
disabled: tocDisabled
});
}, 100));
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
var $window = $(window), $pageFooter = $('.js-page-footer');
var $pageAside = $('.js-page-aside');
var affix;
var tocDisabled = false;
var hasSidebar = $('.js-page-root').hasClass('layout--page--sidebar');
affix = $pageAside.affix({
offsetBottom: $pageFooter.outerHeight(),
scrollTarget: hasSidebar ? '.js-page-main' : null,
scroller: hasSidebar ? '.js-page-main' : null,
scroll: hasSidebar ? $('.js-page-main').children() : null,
disabled: tocDisabled
});
$window.on('resize', window.throttle(function() {
affix && affix.setOptions({
disabled: tocDisabled
});
}, 100));
window.pageAsideAffix = affix;
});
})();
</script><!---->
</div>
<script>(function () {
var $root = document.getElementsByClassName('root')[0];
if (window.hasEvent('touchstart')) {
$root.dataset.isTouch = true;
document.addEventListener('touchstart', function(){}, false);
}
})();
</script>
</body>
</html>