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<div id="preamble"><h1>Module Apache mod_heartbeat</h1>
<div class="toplang">
<p><span>Langues Disponibles: </span><a href="../en/mod/mod_heartbeat.html" hreflang="en" rel="alternate" title="English"> en </a> |
<a href="../fr/mod/mod_heartbeat.html" title="Français"> fr </a></p>
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Envoie des messages d'état au mandataire frontal</td></tr>
<tr><th><a href="module-dict.html#Status">Statut:</a></th><td>Expérimental</td></tr>
<tr><th><a href="module-dict.html#ModuleIdentifier">Identificateur de Module:</a></th><td>heartbeat_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">Fichier Source:</a></th><td>mod_heartbeat</td></tr>
<tr><th><a href="module-dict.html#Compatibility">Compatibilité:</a></th><td>Disponible à partir de la version 2.3
du serveur HTTP Apache</td></tr></table>
<h3>Sommaire</h3>
<p><code class="module"><a href="../mod/mod_heartbeat.html">mod_heartbeat</a></code> envoie à un moniteur
<code class="module"><a href="../mod/mod_heartmonitor.html">mod_heartmonitor</a></code> des messages multicast l'informant
du nombre de connexions courantes. En général,
<code class="module"><a href="../mod/mod_heartmonitor.html">mod_heartmonitor</a></code> est chargé sur un serveur
mandataire où <code class="module"><a href="../mod/mod_lbmethod_heartbeat.html">mod_lbmethod_heartbeat</a></code> est chargé, ce
qui permet d'utiliser la <em>lbmethod</em> "heartbeat" au sein des
directives <code class="directive"><a href="../mod/mod_proxy.html#proxypass">ProxyPass</a></code>.</p>
<p>
Le module <code class="module"><a href="../mod/mod_heartbeat.html">mod_heartbeat</a></code> est chargé sur le
serveur d'origine qui sert les requêtes via le
serveur mandataire.
</p>
<div class="warning">
Pour utiliser <code class="module"><a href="../mod/mod_heartbeat.html">mod_heartbeat</a></code>,
<code class="module"><a href="../mod/mod_status.html">mod_status</a></code> et <code class="module"><a href="../mod/mod_watchdog.html">mod_watchdog</a></code>
doivent être soit des modules statiques, soit des modules
dynamiques, et dans ce dernier cas, ils doivent être chargés
avant <code class="module"><a href="../mod/mod_heartbeat.html">mod_heartbeat</a></code>.
</div>
</div>
<div id="quickview"><h3>Sujets</h3>
<ul id="topics">
<li><img alt="" src="../images/down.gif" /> <a href="#consuming">Utilisation de la sortie de mod_heartbeat</a></li>
</ul><h3 class="directives">Directives</h3>
<ul id="toc">
<li><img alt="" src="../images/down.gif" /> <a href="#heartbeataddress">HeartbeatAddress</a></li>
</ul>
<h3>Traitement des bugs</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">Journal des modifications de httpd</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_heartbeat">Problèmes connus</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_heartbeat">Signaler un bug</a></li></ul><h3>Voir aussi</h3>
<ul class="seealso">
<li><a href="#comments_section">Commentaires</a></li></ul></div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="consuming" id="consuming">Utilisation de la sortie de mod_heartbeat</a></h2>
<p>
Chaque seconde, ce module génère un paquet multicast UDP contenant
le nombre de threads/processus occupés et en attente. Le paquet
possède un format ASCII simple similaire aux paramètres de requête
GET en HTTP.
</p>
<div class="example"><h3>Exemple de paquet</h3><p><code>
v=1&ready=75&busy=0
</code></p></div>
<p>
Les utilisateurs disposeront dans le futur de nouvelles variables en
plus de busy et ready, et toujours séparées par des '&'.
</p>
</div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="heartbeataddress" id="heartbeataddress">Directive</a> <a name="HeartbeatAddress" id="HeartbeatAddress">HeartbeatAddress</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Adresse multicast à laquelle envoyer les requêtes
heartbeat</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>HeartbeatAddress <var>addr:port</var></code></td></tr>
<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>disabled</code></td></tr>
<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>configuration du serveur</td></tr>
<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Expérimental</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_heartbeat</td></tr>
</table>
<p>La directive <code class="directive">HeartbeatAddress</code> permet de
spécifier l'adresse multicast à laquelle <code class="module"><a href="../mod/mod_heartbeat.html">mod_heartbeat</a></code> va
envoyer ses informations. En général, cette adresse correspond à la
valeur définie par la directive <code class="directive"><a href="../mod/mod_heartmonitor.html#heartbeatlisten">HeartbeatListen</a></code> sur le serveur
mandataire frontal.</p>
<pre class="prettyprint lang-config">HeartbeatAddress 239.0.0.1:27999</pre>
</div>
</div>
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<p><span>Langues Disponibles: </span><a href="../en/mod/mod_heartbeat.html" hreflang="en" rel="alternate" title="English"> en </a> |
<a href="../fr/mod/mod_heartbeat.html" title="Français"> fr </a></p>
</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Commentaires</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div>
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