Hi, I just installed mod_fcgid on my apache2 server. When I try to load my application I get an "Application error - Rails application failed ..." message. In my Apache2 error-log it says: Premature end of script headers dispatch.fcgi mod_fcgid process /data/www/app/dispacth.fcgi exit (communication error), terminated by calling exit(), return code 1 Any help with this would be fantastic. Maarten -- Posted via http://www.ruby-forum.com/.
This is definitely one of the more annoying parts of setting up a Rails application. The first thing I''d suggest is to make sure all your permissions are correct on the server you''re uploading to -- correct owners, correct groups, log files writable, scripts executable, /tmp directory free of old session files belonging to the wrong user. If that''s all kosher, here''s a way to find out exactly what''s stopping your dispatcher. Find your Dispatcher class in your Rails installation. On my Debian system, it''s in /usr/lib/ruby/gems/1.8/gems/rails-0.14.4/lib/dispatcher.rb. Then, find the dispatch method. You''ll find a place where a block is passed to a function ''failsafe_response''. Comment out that line and the corresponding ''end'' so that the process_with_exception call is simply executed, not in a block. Save this change then try running the dispatch.fcgi script manually. It should spit out a useful error. To be honest it''s a while since I''ve done this, so I might have got some details wrong, but I reckon you get the idea. The trick is to make the dispatcher spit out a useful error message. Once you can do that, you''re swimming. (BTW -- you should return the dispatcher to its original state after you fix the problem.) Hope that helps. Matt --- Maarten Hendrikx <mjhendrikx@yahoo.com> wrote:> Hi, > > I just installed mod_fcgid on my apache2 server. > When I try to load my application I get an > "Application error - Rails application failed ..." > message. > > In my Apache2 error-log it says: > Premature end of script headers dispatch.fcgi > mod_fcgid process /data/www/app/dispacth.fcgi exit > (communication > error), > terminated by calling exit(), return code 1 > > Any help with this would be fantastic. > > Maarten > > -- > Posted via http://www.ruby-forum.com/. > _______________________________________________ > Rails mailing list > Rails@lists.rubyonrails.org > http://lists.rubyonrails.org/mailman/listinfo/rails >__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
This is the output when I do: ruby dispatch.fcgi
/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.0/lib/active_support/dependencies.rb:112:in
`const_missing'': uninitialized constant RailsFCGIHandler (NameError)
from
/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.0/lib/active_support/dependencies.rb:120:in
`const_missing''
from dispatch.fcgi:24
Maarten
--
Posted via http://www.ruby-forum.com/.
Do you have Ruby fcgi support installed? gem install fcgi And this line in your .htaccess: AddHandler fcgid-script .fcgi Matt --- Maarten Hendrikx <mjhendrikx@yahoo.com> wrote:> This is the output when I do: ruby dispatch.fcgi > >/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.0/lib/active_support/dependencies.rb:112:in> > `const_missing'': uninitialized constant > RailsFCGIHandler (NameError) > from >/usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.0/lib/active_support/dependencies.rb:120:in> > `const_missing'' > from dispatch.fcgi:24 > > Maarten > > -- > Posted via http://www.ruby-forum.com/. > _______________________________________________ > Rails mailing list > Rails@lists.rubyonrails.org > http://lists.rubyonrails.org/mailman/listinfo/rails >__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Ok, I tried that and this is the output (can''t be good):
Building native extensions. This could take a while...
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby
--with-fcgi-dir
--without-fcgi-dir
--with-fcgi-include
--without-fcgi-include=${fcgi-dir}/include
--with-fcgi-lib
--without-fcgi-lib=${fcgi-dir}/lib
ERROR: While executing gem ... (RuntimeError)
ERROR: Failed to build gem native extension.
Gem files will remain installed in
/usr/local/lib/ruby/gems/1.8/gems/fcgi-0.8.6.1 for inspection.
ruby extconf.rb install fcgi\nchecking for fcgiapp.h... no
checking for fastcgi/fcgiapp.h... no
Results logged to
/usr/local/lib/ruby/gems/1.8/gems/fcgi-0.8.6.1/ext/gem_make.out
--
Posted via http://www.ruby-forum.com/.
Have you installed FastCGI libraries? www.fastcgi.org -- -- Tom Mornini On Apr 9, 2006, at 5:56 AM, Maarten Hendrikx wrote:> Ok, I tried that and this is the output (can''t be good): > > Building native extensions. This could take a while... > *** extconf.rb failed *** > Could not create Makefile due to some reason, probably lack of > necessary libraries and/or headers. Check the mkmf.log file for more > details. You may need configuration options. > > Provided configuration options: > --with-opt-dir > --without-opt-dir > --with-opt-include > --without-opt-include=${opt-dir}/include > --with-opt-lib > --without-opt-lib=${opt-dir}/lib > --with-make-prog > --without-make-prog > --srcdir=. > --curdir > --ruby=/usr/local/bin/ruby > --with-fcgi-dir > --without-fcgi-dir > --with-fcgi-include > --without-fcgi-include=${fcgi-dir}/include > --with-fcgi-lib > --without-fcgi-lib=${fcgi-dir}/lib > ERROR: While executing gem ... (RuntimeError) > ERROR: Failed to build gem native extension. > Gem files will remain installed in > /usr/local/lib/ruby/gems/1.8/gems/fcgi-0.8.6.1 for inspection. > ruby extconf.rb install fcgi\nchecking for fcgiapp.h... no > checking for fastcgi/fcgiapp.h... no > > > Results logged to > /usr/local/lib/ruby/gems/1.8/gems/fcgi-0.8.6.1/ext/gem_make.out > > -- > Posted via http://www.ruby-forum.com/. > _______________________________________________ > Rails mailing list > Rails@lists.rubyonrails.org > http://lists.rubyonrails.org/mailman/listinfo/rails
Tom Mornini wrote:> Have you installed FastCGI libraries? > > www.fastcgi.org > > -- > -- Tom MorniniI installed mod_fcgid, not mod_fastcgi. -- Posted via http://www.ruby-forum.com/.
That''s the add on for Apache. You need an add on for Ruby also. I use Lighttpd, so I''m not 100% sure how you do it, but I had to installed the FastCGI libraries and then install the FastCGI gem, which *may* require the FastCGI libraries. -- -- Tom Mornini On Apr 9, 2006, at 9:11 AM, Maarten Hendrikx wrote:> Tom Mornini wrote: >> Have you installed FastCGI libraries? >> >> www.fastcgi.org >> >> -- >> -- Tom Mornini > > I installed mod_fcgid, not mod_fastcgi. > > > -- > Posted via http://www.ruby-forum.com/. > _______________________________________________ > Rails mailing list > Rails@lists.rubyonrails.org > http://lists.rubyonrails.org/mailman/listinfo/rails
Maarten Hendrikx wrote:> Hi, > > I just installed mod_fcgid on my apache2 server. > When I try to load my application I get an > "Application error - Rails application failed ..." message. > > In my Apache2 error-log it says: > Premature end of script headers dispatch.fcgi > mod_fcgid process /data/www/app/dispacth.fcgi exit (communication > error), > terminated by calling exit(), return code 1 > > Any help with this would be fantastic. > > Maartenmod_fcgid tips (tested on Apache 2.0.55 and mod_fcgid-1.08 on Debian 3.1) Make sure you set IPCCommTimeout to at least 45 to allow enough startup time. Set DefaultMaxClassProcessCount to 2 unless your benchmarks tell you to change. Set IdleTimeout to 3600 or higher since your only have 2 dispatch.fcgi. Set ProcessLifeTime to a multiple of IdleTimeout. Set MaxProcessCount > DefaultMaxClassProcessCount so you can use mod_fcgid for other things than rails. mod_fcgid religiously kills idle or old processes so keep IdleTimeout and ProcessLifeTime to high values. Here is an example ''starter'' /etc/apache2/mods-enabled/fcgid.conf <IfModule mod_fcgid.c> AddHandler fcgid-script .fcgi SocketPath /var/lib/apache2/fcgid/sock IdleTimeout 3600 ProcessLifeTime 7200 MaxProcessCount 8 DefaultMaxClassProcessCount 2 IPCConnectTimeout 8 IPCCommTimeout 60 DefaultInitEnv RAILS_ENV production </IfModule> If you have plenty of RAM, then increase DefaultMaxClassProcessCount to about 2*CPU--assume each instance will eat 20-30MB RAM. -- Posted via http://www.ruby-forum.com/.
> <IfModule mod_fcgid.c> > AddHandler fcgid-script .fcgi > SocketPath /var/lib/apache2/fcgid/sock > IdleTimeout 3600 > ProcessLifeTime 7200 > MaxProcessCount 8 > DefaultMaxClassProcessCount 2 > IPCConnectTimeout 8 > IPCCommTimeout 60 > DefaultInitEnv RAILS_ENV production > </IfModule> >Ok, I added this to my httpd.conf and restarted. My app now produces a 503 error and I have this in my error log: [Mon Apr 10 12:21:01 2006] [error] (13)Permission denied: mod_fcgid: couldn''t bind unix domain socket /var/lib/apache2/fcgid/sock/3842.3 [Mon Apr 10 12:21:01 2006] [warn] (13)Permission denied: mod_fcgid: spawn process /data/www/http/homepage/dispatch.fcgi error Ideas? -- Posted via http://www.ruby-forum.com/.
On Mon, Apr 10, 2006 at 11:20:39AM +0200, Maarten Hendrikx wrote: } > <IfModule mod_fcgid.c> } > AddHandler fcgid-script .fcgi } > SocketPath /var/lib/apache2/fcgid/sock } > IdleTimeout 3600 } > ProcessLifeTime 7200 } > MaxProcessCount 8 } > DefaultMaxClassProcessCount 2 } > IPCConnectTimeout 8 } > IPCCommTimeout 60 } > DefaultInitEnv RAILS_ENV production } > </IfModule> } > } } Ok, I added this to my httpd.conf and restarted. } My app now produces a 503 error and I have this in } my error log: } [Mon Apr 10 12:21:01 2006] [error] (13)Permission denied: mod_fcgid: } couldn''t bind unix domain socket /var/lib/apache2/fcgid/sock/3842.3 } [Mon Apr 10 12:21:01 2006] [warn] (13)Permission denied: mod_fcgid: } spawn process /data/www/http/homepage/dispatch.fcgi error } } Ideas? Does /var/lib/apache2/fcgid/sock exist? Is it readable-writable-executable by www-data? The error says "Permission denied" so I''d look for permission problems. --Greg
Is there any way to incorporate these values into a virtualhost config? I''m trying to set the rails environment on a per vhost basis on the same server (i.e dev., www.). Using SetEnv in a directory seems to do nothing. Obviously I can only have one fcgid.conf.> Here is an example ''starter'' /etc/apache2/mods-enabled/fcgid.conf > > <IfModule mod_fcgid.c> > AddHandler fcgid-script .fcgi > SocketPath /var/lib/apache2/fcgid/sock > IdleTimeout 3600 > ProcessLifeTime 7200 > MaxProcessCount 8 > DefaultMaxClassProcessCount 2 > IPCConnectTimeout 8 > IPCCommTimeout 60 > DefaultInitEnv RAILS_ENV production > </IfModule>-- I do things for love or money
> } My app now produces a 503 error and I have this in > } my error log: > } [Mon Apr 10 12:21:01 2006] [error] (13)Permission denied: mod_fcgid: > } couldn''t bind unix domain socket /var/lib/apache2/fcgid/sock/3842.3 > } [Mon Apr 10 12:21:01 2006] [warn] (13)Permission denied: mod_fcgid: > } spawn process /data/www/http/homepage/dispatch.fcgi error > } > } Ideas? > > Does /var/lib/apache2/fcgid/sock exist? Is it > readable-writable-executable > by www-data? The error says "Permission denied" so I''d look for > permission > problems. > > --GregYes, my web server user is httpd at it can read-write-execute. I also tried to set it to 777. To no avail... -- Posted via http://www.ruby-forum.com/.
On Tue, Apr 11, 2006 at 11:50:48AM +0200, Maarten Hendrikx wrote: } } > } My app now produces a 503 error and I have this in } > } my error log: } > } [Mon Apr 10 12:21:01 2006] [error] (13)Permission denied: mod_fcgid: } > } couldn''t bind unix domain socket /var/lib/apache2/fcgid/sock/3842.3 } > } [Mon Apr 10 12:21:01 2006] [warn] (13)Permission denied: mod_fcgid: } > } spawn process /data/www/http/homepage/dispatch.fcgi error } > } } > } Ideas? } > } > Does /var/lib/apache2/fcgid/sock exist? Is it } > readable-writable-executable } > by www-data? The error says "Permission denied" so I''d look for } > permission } > problems. } > } > --Greg } } Yes, my web server user is httpd at it can read-write-execute. } I also tried to set it to 777. To no avail... Can the user traverse the entire path? That means that the user must have at least execute privileges on /var, /var/lib, /var/lib/apache2, and /var/lib/apache2/fcgid. --Greg
> Can the user traverse the entire path? That means that the user must > have > at least execute privileges on /var, /var/lib, /var/lib/apache2, and > /var/lib/apache2/fcgid. > > --GregYes, I checked that, the error in de Apache log states now: Rails Error: Unable to access log file. Please ensure that /data/www/http/homepage/../config/../log/production.log exists and is chmod 0666. The log level has been raised to WARN and the output directed to STDERR until the problem is fixed. /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.0/lib/active_support/dependencies.rb:112:in `const_missing'': uninitialized constant RailsFCGIHandler (NameError) from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.0/lib/active_support/dependencies.rb:120:in `const_missing'' from /data/www/http/homepage/dispatch.fcgi:24 [Tue Apr 11 23:45:09 2006] [error] [client 192.168.1.1] Premature end of script headers: dispatch.fcgi [Tue Apr 11 23:45:13 2006] [notice] mod_fcgid: process /data/www/http/homepage/dispatch.fcgi(10156) exit(communication error), terminated by calling exit(), return code: 1 This is pretty frustrating... -- Posted via http://www.ruby-forum.com/.
On Tue, Apr 11, 2006 at 10:44:11PM +0200, Maarten Hendrikx wrote: } } > Can the user traverse the entire path? That means that the user must } > have } > at least execute privileges on /var, /var/lib, /var/lib/apache2, and } > /var/lib/apache2/fcgid. } > } > --Greg } } Yes, I checked that, the error in de Apache log states now: } } Rails Error: Unable to access log file. Please ensure that } /data/www/http/homepage/../config/../log/production.log exists and is } chmod 0666. The log level has been raised to WARN and the output } directed to STDERR until the problem is fixed. } /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.0/lib/active_support/dependencies.rb:112:in } `const_missing'': uninitialized constant RailsFCGIHandler (NameError) } from } /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.3.0/lib/active_support/dependencies.rb:120:in } `const_missing'' } from /data/www/http/homepage/dispatch.fcgi:24 } [Tue Apr 11 23:45:09 2006] [error] [client 192.168.1.1] Premature end of } script headers: dispatch.fcgi } [Tue Apr 11 23:45:13 2006] [notice] mod_fcgid: process } /data/www/http/homepage/dispatch.fcgi(10156) exit(communication error), } terminated by calling exit(), return code: 1 } } This is pretty frustrating... I had a similar problem. I needed GEM_HOME to be set, and it was in my shell but not in my environment under Apache2. It looks like you can get to your gems, though. Is there some other library directory it may not be finding, or may not have permissions to read? --Greg
Ok, thanks for all the help. But I''m giving this up. Too bad... -- Posted via http://www.ruby-forum.com/.
Maarten Hendrikx wrote:> Ok, thanks for all the help. But I''m giving this up. Too bad...Hey, just as I was about to give up: I got it. I had to install FastCGI and ran gem install fcgi without any problems. Now the app works with mod_fcgid! -- Posted via http://www.ruby-forum.com/.
On Wed, Apr 12, 2006 at 12:53:24PM +0200, Maarten Hendrikx wrote: } Maarten Hendrikx wrote: } > Ok, thanks for all the help. But I''m giving this up. Too bad... } } Hey, just as I was about to give up: I got it. } I had to install FastCGI and ran gem install fcgi without any problems. } Now the app works with mod_fcgid! Interesting. I wound up installing the libfcgi-ruby1.8 Debian package, which apparently contains the same thing. --Greg