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33 <head>
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5- <title>HAProxy version 3.4-dev3-28 - Configuration Manual</title>
5+ <title>HAProxy version 3.4-dev3-30 - Configuration Manual</title>
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47874787 You can use <strong>left</strong> and <strong>right</strong> arrow keys to navigate between chapters.<br>
47884788 </p>
47894789 <p class="text-right">
4790- <small>Converted with <a href="https://github.com/cbonte/haproxy-dconv">haproxy-dconv</a> v<b>0.4.2-15</b> on <b>2026/01/28 </b></small>
4790+ <small>Converted with <a href="https://github.com/cbonte/haproxy-dconv">haproxy-dconv</a> v<b>0.4.2-15</b> on <b>2026/02/03 </b></small>
47914791 </p>
47924792 </div>
47934793 <!-- /.sidebar -->
47984798 <div class="text-center">
47994799 <h1><a href="http://www.haproxy.org/" title="HAProxy"><img src="../img/HAProxyCommunityEdition_60px.png?0.4.2-15" /></a></h1>
48004800 <h2>Configuration Manual</h2>
4801- <p><strong>version 3.4-dev3-28 </strong></p>
4801+ <p><strong>version 3.4-dev3-30 </strong></p>
48024802 <p>
48034803 2026/01/22<br>
48044804
@@ -15760,7 +15760,7 @@ <h2 id="chapter-4.2" data-target="4.2"><small><a class="small" href="#4.2">4.2.<
1576015760 "GET /image.iso HTTP/1.0"
1576115761</code></pre>
1576215762</div><div class="page-header"><b>See also :</b> "<a href="#option%20httplog">option httplog</a>", "<a href="#capture%20response%20header">capture response header</a>", and <a href="#8">section 8</a> about logging.</div>
15763- <a class="anchor" name="option"></a><a class="anchor" name="4-option"></a><a class="anchor" name="4.2-option"></a><a class="anchor" name="option (Proxies)"></a><a class="anchor" name="option (Alphabetically sorted keywords reference)"></a><a class="anchor" name="option mysql-check"></a><a class="anchor" name="4-option mysql-check"></a><a class="anchor" name="4.2-option mysql-check"></a><a class="anchor" name="option mysql-check (Proxies)"></a><a class="anchor" name="option mysql-check (Alphabetically sorted keywords reference)"></a><div class="keyword"><b><a class="anchor" name="option mysql-check"></a><a href="#4.2-option%20mysql-check">option mysql-check</a></b> <span style="color: #008">[ user <span style="color: #080"><username></span> <span style="color: #008">[ <span style="color: #800">{ post-41 | pre-41 }</span> ]</span> ]</span></div><pre class="text">Use MySQL health checks for server testing
15763+ <a class="anchor" name="option"></a><a class="anchor" name="4-option"></a><a class="anchor" name="4.2-option"></a><a class="anchor" name="option (Proxies)"></a><a class="anchor" name="option (Alphabetically sorted keywords reference)"></a><a class="anchor" name="option mysql-check"></a><a class="anchor" name="4-option mysql-check"></a><a class="anchor" name="4.2-option mysql-check"></a><a class="anchor" name="option mysql-check (Proxies)"></a><a class="anchor" name="option mysql-check (Alphabetically sorted keywords reference)"></a><div class="keyword"><b><a class="anchor" name="option mysql-check"></a><a href="#4.2-option%20mysql-check">option mysql-check</a></b> <span style="color: #008">[ user <span style="color: #080"><username></span> <span style="color: #008">[ <span style="color: #800">{ post-41 | pre-41 | post-80 }</span> ]</span> ]</span></div><pre class="text">Use MySQL health checks for server testing
1576415764
1576515765May be used in the following contexts: tcp
1576615766</pre><div><p> May be used in sections :</p><table class="table table-bordered" border="0" cellspacing="0" cellpadding="0">
@@ -15771,7 +15771,13 @@ <h2 id="chapter-4.2" data-target="4.2"><small><a class="small" href="#4.2">4.2.<
1577115771<span class="label label-info">Arguments :</span><pre class="prettyprint arguments"><username> This is the username which will be used when connecting to MySQL
1577215772 server.
1577315773post-41 Send post v4.1 client compatible checks (the default)
15774- pre-41 Send pre v4.1 client compatible checks</pre>
15774+ pre-41 Send pre v4.1 client compatible checks
15775+ post-80 Send post v8.0 client compatible checks with CLIENT_PLUGIN_AUTH
15776+ capability set and mysql_native_password as the authentication
15777+ plugin. Use this option when connecting to MySQL 8.0+ servers
15778+ where the health check user is created with mysql_native_password
15779+ authentication. Example:
15780+ CREATE USER 'haproxy'@'%' IDENTIFIED WITH mysql_native_password BY '';</pre>
1577515781</div>
1577615782<pre class="text">If you specify a username, the check consists of sending two MySQL packet,
1577715783one Client Authentication packet, and one QUIT packet, to correctly close
@@ -34518,7 +34524,7 @@ <h2 id="chapter-12.8" data-target="12.8"><small><a class="small" href="#12.8">12
3451834524 <br>
3451934525 <hr>
3452034526 <div class="text-right">
34521- HAProxy 3.4-dev3-28 – Configuration Manual<br>
34527+ HAProxy 3.4-dev3-30 – Configuration Manual<br>
3452234528 <small>, 2026/01/22</small>
3452334529 </div>
3452434530 </div>
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