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<html>
<head>
<title>Debugging Cherokee</title>
<link href="media/css/documentation.css" type="text/css" rel="stylesheet" />
</head>
<body>
<h1>Debugging Cherokee</h1>
<p>If you need to debug the behavior of the web server (or an application), there
are some helpful tools available for you.</p>
<ul>
<li><p class="first">To start with, if you are using gcc and you want to compile Cherokee
with debug information just execute make like this:</p>
<pre class="literal-block">
make CFLAGS="-O0 -g3"
</pre>
<p>And then you'll be able to execute gdb, cgdb, gdbtui..</p>
</li>
<li><p class="first">You can use autoconf to set up Cherokee to use static modules:</p>
<pre class="literal-block">
./autogen.sh --localstatedir=/var --prefix=/usr --sysconfdir=/etc \
--with-wwwroot=/var/www --enable-static-module=all --enable-static --enable-shared=no
</pre>
</li>
<li><p class="first">You can also enable a new cool feature: CHEROKEE_TRACE, which will let you trace the
behavior with a human-readable output:</p>
<pre class="literal-block">
--enable-trace
</pre>
</li>
</ul>
<p>Now, when you are going to launch the web server, just add the CHEROKEE_TRACE variable,
with the desired options:</p>
<pre class="literal-block">
cherokee# CHEROKEE_TRACE="common" cherokee
Cherokee Web Server 0.7.0 (May 21 2008): Listening on port 80, TLS disabled
IPv6 enabled, using epoll, 1024 fds system limit, max. 507 connections
5 threads, 206 fds per thread, standard scheduling policy
handler_common.c:0143 ( stat_file): /var/www//images/powered_by_cherokee.png, use_iocache=0 re=0
handler_common.c:0190 ( cherokee_handler_common_new): request: '/images/powered_by_cherokee.png', local: '/var/www//images/powered_by_cherokee.png', exists 1
handler_common.c:0236 ( cherokee_handler_common_new): going for handler_file
handler_common.c:0143 ( stat_file): /var/www//images/default-bg.png, use_iocache=0 re=0
handler_common.c:0190 ( cherokee_handler_common_new): request: '/images/default-bg.png', local: '/var/www//images/default-bg.png', exists 1
handler_common.c:0236 ( cherokee_handler_common_new): going for handler_file
handler_common.c:0143 ( stat_file): /var/www//images/cherokee-logo.png, use_iocache=0 re=0
handler_common.c:0190 ( cherokee_handler_common_new): request: '/images/cherokee-logo.png', local: '/var/www//images/cherokee-logo.png', exists 1
handler_common.c:0236 ( cherokee_handler_common_new): going for handler_file
</pre>
<p>Of course, you can trace all the modules (handlers, loggers..) you need:</p>
<pre class="literal-block">
CHEROKEE_TRACE="common,static,io_cache" /usr/bin/cherokee
CHEROKEE_TRACE="all" /usr/bin/cherokee
</pre>
</body>
</html>
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