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| <p class="apache">Serveur Apache HTTP Version 2.4</p> |
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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> |
| </div> |
| <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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