3 Catalyst::Manual::Deployment::FastCGI - Deploying Catalyst with FastCGI
5 =head1 FastCGI Deployment
7 FastCGI is a high-performance extension to CGI. It is suitable
8 for production environments.
14 FastCGI performs equally as well as mod_perl. Don't let the 'CGI' fool you;
15 your app runs as multiple persistent processes ready to receive connections
20 When using external FastCGI servers, your application runs as a standalone
21 application server. It may be restarted independently from the web server.
22 This allows for a more robust environment and faster reload times when
23 pushing new app changes. The frontend server can even be configured to
24 display a friendly "down for maintenance" page while the application is
29 You can launch your application on multiple backend servers and allow the
30 frontend web server to load-balance between all of them. And of course, if
31 one goes down, your app continues to run fine.
33 =head3 Multiple versions of the same app
35 Each FastCGI application is a separate process, so you can run different
36 versions of the same app on a single server.
38 =head3 Can run with threaded Apache
40 Since your app is not running inside of Apache, the faster mpm_worker module
41 can be used without worrying about the thread safety of your application.
45 You may have to disable mod_deflate. If you experience page hangs with
46 mod_fastcgi then remove deflate.load and deflate.conf from mods-enabled/
48 =head3 More complex environment
50 With FastCGI, there are more things to monitor and more processes running
51 than when using mod_perl.
53 XXX - FIXME, note not just apache!
55 =head2 Standalone FastCGI Server
57 In server mode the application runs as a standalone server and accepts
58 connections from a web server. The application can be on the same machine as
59 the web server, on a remote machine, or even on multiple remote machines.
60 Advantages of this method include running the Catalyst application as a
61 different user than the web server, and the ability to set up a scalable
64 To start your application in server mode, install the FCGI::ProcManager
65 module and then use the included fastcgi.pl script.
67 $ script/myapp_fastcgi.pl -l /tmp/myapp.socket -n 5
69 Command line options for fastcgi.pl include:
71 -d -daemon Daemonize the server.
72 -p -pidfile Write a pidfile with the pid of the process manager.
73 -l -listen Listen on a socket path, hostname:port, or :port.
74 -n -nproc The number of processes started to handle requests.
76 See below for the specific web server configurations for using the external
81 Catalyst Contributors, see Catalyst.pm
85 This library is free software. You can redistribute it and/or modify it under
86 the same terms as Perl itself.