This page documents the 1.4 (latest stable) release. Documentation for other releases can be found here.

Trac and FastCGI

There is support in the Trac trunk as of [1399] for the ​FastCGI interface. Like TracModPython, this allows trac to remain resident, and is faster than external CGI interfaces which must start a new process for each page view. However, unlike mod_python, it is able to support ​SuEXEC. Additionally, it is supported by much wider variety of webservers.

Simple Apache configuration

# Enable fastcgi for .fcgi files
# if using a distro package for mod_fcgi, something like this is probably already done
<IfModule mod_fastcgi.c>
     AddHandler fastcgi-script .fcgi
     FastCgiIpcDir /var/lib/apache2/fastcgi 
</IfModule>
LoadModule fastcgi_module /usr/lib/apache2/modules/mod_fastcgi.so

You can either setup the TRAC_ENV as an overall default:

FastCgiConfig -initial-env TRAC_ENV=/path/to/env/trac

Or you can serve multiple Trac projects in a directory like:

FastCgiConfig -initial-env TRAC_ENV_PARENT_DIR=/parent/dir/of/projects

Configure ScriptAlias or similar options as described in TracInstall, but calling cgi-bin/trac.fcgi instead of cgi-bin/trac.cgi

Simple Lighttpd Configuration

The FastCGI front-end was developed primarily for use with alternative webservers, such as ​lighttpd.

lighttpd a secure, fast, compliant and very flexible web-server which has been optimized for high-performance
environments.  It has a very low memory footprint compared to other webservers and takes care of cpu-load.

Using TracFastCgi with lighttpd requires that the patch attached to #1305 be applied. You can then add the following to your lighttpd.conf:

fastcgi.server = ("trac.fcgi" => ( "trac.fcgi" => ( "socket" => "/tmp/trac-fastcgi.socket",
                                                    "bin-path" => "/path/to/cgi-bin/trac.fcgi",
                                                    "bin-environment" => ("TRAC_ENV" => "/path/to/env/trac")
                                                  )
                                 )
                 )
alias.url = ( "/cgi-bin/" => "/path/to/cgi-bin/", "/trac/" => "/usr/share/trac/htdocs/")
url.rewrite-final = ("^/trac(.*)" => "/cgi-bin/trac.fcgi$1", "^/trac/?$" => "/trac/timeline/")

Note that you will need to add a new entry to fastcgi.server for each separate Trac instance that you wish to run.

Relaunch lighttpd, and browse to ​http://server/trac/ to access Trac.

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See also TracGuide, TracInstall, TracMultipleProjects