The plug-in is installed at the following location:
32 bit FastCGI plug-in binaries are installed under <install_dir>/plugins/fastcgi directory.
64 bit Solaris SPARC FastCGI plug-in binaries are installed under <install_dir>/lib/plugins/fastcgi/64 directory.
The following FastCGI binaries are installed :
libfastcgi.so (for Solaris/Linux)
The FastCGI plug-in is configured using the Web Server configuration files located under <instance-dir>/config directory. To configure the FastCGI plug-in, perform the following steps:
Use the “load-modules” Init function to load the FastCGI plug-in shared library.
Init fn=flex-init access="access" format.access="%Ses->client.ip% - %Req->vars.auth-user% [%SYSDATE%] \"%Req->reqpb.clf-request%\" %Req->srvhdrs.clf-status% %Req->srvhdrs.content-length%" Init fn="load-modules" shlib="libJava EEplugin.so" shlib_flags="(global|now)" Init fn="load-modules" shlib="libfastcgi.so" shlib_flags="(global|now)"
Edit the mime.types file to specify the MIME mapping. Modifying the MIME type mapping is an optional step.
#--Sun Microsystems Inc. MIME Information # Do not delete the above line. It is used to identify the file type. # # Copyright 2006 Sun Microsystems, Inc. All rights reserved. # Use is subject to license terms. # type=application/octet-stream exts=bin type=application/astound exts=asd,asn ... ... type=magnus-internal/fastcgi exts=php ... ...
Edit the obj.conf file to configure FastCGI specific requests using the plug-in SAFs described in the earlier sections.
An example of modified obj.conf file is shown below:
# # Copyright 2006 Sun Microsystems, Inc. All rights reserved. # Use is subject to license terms. # # You can edit this file, but comments and formatting changes # might be lost when you use the administration GUI or CLI. <object name = "default"> AuthTrans fn="match-browser" browser="*MSIE*" ssl-unclean-shutdown="true" NameTrans fn="ntrans-Java EE" name="Java EE" NameTrans fn="pfx2dir" from="/mc-icons" dir="/ws7/lib/icons" name="es-internal" NameTrans fn="assign-name" from="/fcgi/*" name="fcgi.config" </object> <Object name="fcgi.config"> AuthTrans fn="auth-fastcgi" app-path="/fastcgi/apps/c/simpleAuth" bind-path="localhost:2111" Service fn="responder-fastcgi" app-path="/fastcgi_enabled_php_installation_dir/bin/php" app-env="name1=abc" </object> ...
Note that FastCGI SAFs can be invoked in different ways by defining different objects for different URL patterns or mapping the SAFs to different MIME types.
For more information on obj.conf configuration and syntax, see Chapter 6, Syntax and Use of obj.conf, in Sun Java System Web Server 7.0 Update 5 Administrator’s Configuration File Reference.
You cannot configure multiple FastCGI applications through the Administration Console or CLI. As a workaround, you can configure multiple applications by modifying the obj.conf file. For example:
<If $uri =~ '^/fcgi/(.*)'> Service fn="responder-fastcgi" app-path="/export/home/bits/fastcgi/fcgi-2.4.0/examples/$1" app-env="LD_LIBRARY_LIBRARY_PATH=/export/home/bits/fastcgi/fcgi-2.4.0/libfcgi/.libs" </If>
The expression creates the <app-path> process, which does not need to be configured separately.
You cannot configure the same bind-path for multiple applications because it results in startup failure due to a common bind-path.
The virtual hosting environment aims to protect potential security and performance problems associated with sharing a PHP engine with several virtual servers.
Using Web Server 7.0 environment variables, you can assign same PHP binary with a separate engine bound to each virtual server. Be sure that each virtual server has its own php.ini file.
Service fn=responder-fastcgi app-path="/path/to/php/php_fcgi" bind-path="$(lc($urlhost))" req-retry=5 type="*magnus-internal/fastcgi*" app-env="PHPRC=/path/to/users/$(lc($urlhost))/config" app-env="PHP_FCGI_CHILDREN=5" app-env="PHP_FCGI_MAX_REQUEST=200" min-procs=1 restart-interval=10 bucket="php-bucket" rlimit_cpu=60
The Web Server tmp directory now shows Unix domain sockets named after individual virtual servers processing PHP requests. This configuration is possible by using a single PHP FastCGI binary for all users. Thus, the single binary must possess all the required plugins compiled with it. The solution for the previously mentioned difficulty is to ensure that each user has a own copy of the PHP binary as needed.
Service fn=responder-fastcgi app-path="/path/to/users/$(lc($urlhost))/php_fcgi" bind-path="$(lc($urlhost))" req-retry=5 type="*magnus-internal/fastcgi*" app-env="PHPRC=/path/to/users/$(lc($urlhost))/config" app-env="PHP_FCGI_CHILDREN=5" app-env="PHP_FCGI_MAX_REQUEST=200" min-procs=1 restart-interval=10 bucket="php-bucket" rlimit_cpu=60
It is also possible to allow different PHP binaries for each application by controlling the structure of the URI space.
If the URI space is structured as:
where /app is the name of the overall application and is always the first directory in the URI structure ending with a PHP file.
<If uri~=^/(\w+)/\w+\.php$> Service fn=responder-fastcgi app-path="/path/to/users/$(lc($urlhost))/$1/php_fcgi" bind-path="$(lc($urlhost))_$1" req-retry=5 type=+magnus-internal/fastcgi*" app-env="PHPRC=/path/to/users/$(lc($urlhost))/config" app-env="PHP_FCGI_CHILDREN=5" app-env="PHP_FCGI_MAX_REQUEST=200" min-procs=1 restart-interval=10 bucket="php-bucket" rlimit_cpu=60 </If>
This invokes a specifically built PHP FastCGI binary which binds to a uniquely named Unix domain socket. Thus, there is no interference with another PHP application or another virtual server. However, this process uses up a lot of memory because of many PHP processes around.
This is a sample configuration file that configures PHP with FastCGI.
<If -f $path> Service type="magnus-internal/php" fn="responder-fastcgi" app-path="/opt/coolstack/php5/bin/php-cgi" bind-path="localhost:3101" app-env="PHPRC=/opt/coolstack/php5" app-env="PHP_FCGI_CHILDREN=5" app-env="PHP_FCGI_MAX_REQUEST=200" app-env="FCGI_WEB_SERVER_ADDRS=127.0.0.1" req-retry=5 restart-interval=10 bucket="php-bucket" </If> <Else> Service type="magnus-internal/php" fn="set-variable" error="404" </Else>
Fastcgistub is a process manager that manages the lifecycle of the FastCGI application processes. Fastcgistub logs its messages into a Fastcgistub.log file under Web Server's temporary directory. In case there are any errors, checking this file can help in debugging the problem.
Problem: FastCGI requests are not getting served.
Possible cause and solutions are as follows:
Check if the FastCGI plug-in is loaded. If the following message appears during Web Server startup, then the plug-in is loaded successfully. Otherwise, check the path to the plug-in library within magnus.conf: FCGI1000: Sun Java System Web Server 7.0 Update 3 FastCGI NSAPI Plugin < build info>
Check if the request mapping is correctly specified within obj.conf. For more information on the obj.conf file, see the Sun Java System Web Server Administrator's Configuration Reference File.
Check the errors log for any possible error messages.
Check the permissions of the stub binary and FastCGI applications. If enough permissions are not given, the plug-in fails to start the stub or the application.
Check the Fastcgistub.log file for any possible errors on the stub side. You can find the log details in <instances>/logs.
If possible, run the FastCGI application in standalone mode and check if it runs without any issues.
If any library dependency errors are thrown, specify the LD_LIBRARY_PATH in the obj.conf as app-env parameter with LD_LIBRARY_PATH=<dependency library paths> value .
Problem: FastCGI application is not getting started.
Possible cause and solutions are as follows:
Check Fastcgistub.log file for the following log messages:
.. <pid> process startup failure, trying to restart ... Even after trying <n> time(s), <application path> process failed to start...no more retries
One of the reasons for startup failures can be the failure to load the dependent library. This issue can be resolved by specifying the appropriate library path(s) as a app-env parameter value to the FastCGI application configured in the obj.conf file. For example:
Service fn="responder_fastcgi" app-path="/fastcgi/c/tux-app" bind-path="localhost:2112" app-env="LD_LIBRARY_PATH=/tuxedo/lib"
FastCGI applications can be developed using Perl, PHP, C and Java. The following sections briefly describe the procedure to develop the application using some of the popular programming languages.
Stop the Web Server.
Restart the Web Server.
Access the application that has "fcgi" as the application root.
For Example: http://localhost/fcgi/ListDir.php
A typical FastCGI application has the following code structure:
Initialization code Start of response loop body of response loop End of response loop
The initialization code is run only once at the time of the application initialization. Initialization code usually performs time-consuming operations such as opening databases or calculating values for tables or bitmaps. The main task of converting a CGI program into a FastCGI program is to separate the initialization code from the code that needs to run for each request.
The response loop runs continuously, waiting for client requests to arrive. The loop starts with a call to FCGI_Accept, a routine in the FastCGI library. The FCGI_Accept routine blocks program execution until a client requests the FastCGI application. When a client request comes in, FCGI_Accept unblocks, runs one iteration of the response loop body, and then blocks again waiting for another client request. The loop terminates only when a System Administrator or the Web Server kills the FastCGI application.
Download and install the latest FCGI module from CPAN. For ActivePerl, the modules can be downloaded from http://aspn.activestate.com/ASPN/Downloads/ActivePerl/PPM/Zips.
For more information on writing FastCGI applications using Perl, see http://www.fastcgi.com/#TheDevKit
Beginning with PHP 4.3.0, FastCGI became a supported configuration for the PHP engine. To compile the PHP 4.3.x or greater engine with support for FastCGI, include the configure switch --enable-fastcgi as part of the build process, for example:
./configure <other-options> --enable-fastcgi gmake
After compilation, the php binary will be FastCGI enabled.
When using PHP versions 5.1.2 or earlier (including PHP 4.x) the FastCGI plug-in should be configured with bind-path in host:port format. For example, bind-path = “localhost:3333”.
For PHP versions 5.1.3 and later, the bind-path is optional. If specified, it should not be in “host:port” format. It can be a string. For example, bind-path = “myphpbindpath”.
FastCGI development kit provides APIs to write FastCGI C/Java applications. You can download the kit from http://www.fastcgi.com/devkit/doc/fcgi-devel-kit.htm.
To build the downloaded FastCGI development kit, perform the following steps:
Unpack the tar file. This action creates a new directory called fcgi-devel-kit
Execute this sequence of commands in the fcgi-devel-kit directory:
For more information on writing FastCGI applications using C, see http://www.fastcgi.com/devkit/doc/fcgi-devel-kit.htm#S3
For more information on writing FastCGI applications using Java, see http://www.fastcgi.com/devkit/doc/fcgi-java.htm