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<div id="preamble"><h1>Module Apache mod_lbmethod_heartbeat</h1>
<div class="toplang">
<p><span>Langues Disponibles: </span><a href="../en/mod/mod_lbmethod_heartbeat.html" hreflang="en" rel="alternate" title="English">&nbsp;en&nbsp;</a> |
<a href="../fr/mod/mod_lbmethod_heartbeat.html" title="Français">&nbsp;fr&nbsp;</a></p>
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Algorithme d'ordonnancement de répartition de charge pour
<code class="module"><a href="../mod/mod_proxy_balancer.html">mod_proxy_balancer</a></code> basé sur le comptage de trafic Heartbeat</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>lbmethod_heartbeat_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">Fichier Source:</a></th><td>mod_lbmethod_heartbeat.c</td></tr>
<tr><th><a href="module-dict.html#Compatibility">Compatibilité:</a></th><td>Disponible depuis la version 2.3 d'Apache</td></tr></table>
<h3>Sommaire</h3>

    <p>lbmethod=heartbeat utilise les services du module
    <code class="module"><a href="../mod/mod_heartmonitor.html">mod_heartmonitor</a></code> pour répartir la charge entre les
    serveurs d'origine qui fournissent des données heartbeat via le
    module <code class="module"><a href="../mod/mod_heartbeat.html">mod_heartbeat</a></code>.</p>

<p>Son algorithme de répartition de charge favorise les serveurs dont la
capacité de traitement moyenne répartie dans le temps est la plus
importante, mais il ne sélectionne pas forcément le serveur qui présente
la disponibilité instantanée la plus importante. Les serveurs qui ne
possèdent aucun client actif sont pénalisés, car ils sont considérés
comme non entièrement initialisés.</p>
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<div id="quickview"><h3 class="directives">Directives</h3>
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<li><img alt="" src="../images/down.gif" /> <a href="#heartbeatstorage">HeartbeatStorage</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__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_lbmethod_heartbeat">Problèmes connus</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_lbmethod_heartbeat">Signaler un bug</a></li></ul><h3>Voir aussi</h3>
<ul class="seealso">
<li><code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code></li>
<li><code class="module"><a href="../mod/mod_proxy_balancer.html">mod_proxy_balancer</a></code></li>
<li><code class="module"><a href="../mod/mod_heartbeat.html">mod_heartbeat</a></code></li>
<li><code class="module"><a href="../mod/mod_heartmonitor.html">mod_heartmonitor</a></code></li>
<li><a href="#comments_section">Commentaires</a></li></ul></div>

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<div class="directive-section"><h2><a name="heartbeatstorage" id="heartbeatstorage">Directive</a> <a name="HeartbeatStorage" id="HeartbeatStorage">HeartbeatStorage</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Indique le chemin permettant de lire les données
heartbeat</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>HeartbeatStorage <var>chemin-fichier</var></code></td></tr>
<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>HeartbeatStorage logs/hb.dat</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_lbmethod_heartbeat</td></tr>
</table>
    <p>La directive <code class="directive">HeartbeatStorage</code> permet de
    spécifier le chemin d'accès aux données heartbeat. Ce fichier texte
    n'est utilisé que si le module <code class="module"><a href="../mod/mod_slotmem_shm.html">mod_slotmem_shm</a></code>
    n'est pas chargé.</p>

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