You can contact us at sales@railscarma.com for any of your Ruby On Rails related needs. We can work out a deal on an hourly, monthly or on a per project basis.

Besides this, we are also offering a couple of partnership opportunities as given below :

A. White-label partnership

RailsCarma services can be resold by you under your own brand. Through this initiative, we aim to make it possible for you to easily add Ruby on Rails web development, which has huge demand right now, to your portfolio of services. With our services and your user base, we can both profit.

B. Become an affiliate

If anyone you know has any Ruby On Rails related requirements then you could forward them to us. We can work together on a profit sharing basis on such projects.

Let us know if you are interested or if you have any queries.

We have been associated with the internet services industry for close to 7 years now, providing technical support and server management services to web hosting companies and datacenters across the globe. Having started providing support services to Ruby On Rails hosting companies way back in 2006 when it was the very beginning of RoR which is now one of the most sought after web development platforms, it was a logical step for us to venture into this area.

One of our major turning points was hiring Neeraj Chowdhary, who now heads project delivery at our organization. Neeraj is one of the best in the industry with extensive experience in Ruby on Rails and agile development. He has been in this industry since the very beginning and his profile boasts of some extra-ordinary projects. Soon after he was hired we started receiving some great feedback from our projects and we knew we had a special thing going. We then went about integrating the development wing with our already established Ruby on Rails server management and support division, and this became RailsCarma.

We are looking forward to enter strategic partnerships with hosting and development companies.

The site was throwing up ’500 internal server error’ and the following error appeared in the apache error logs.

FastCGI: incomplete headers (0 bytes) received from server “/home/httpd/vhosts/default/fcgi-bin/phpfcgi”

Fix :

If you are getting  this error then it means that no headers are being returned when a request gets through to dispatch.fcgi

Possible reasons (and solutions) for this error are:

Session files are not configured correctly – This usually happens when moving between different server types. Delete the sessions in your /tmp folder. Execute the following command  and try again.

killall -usr1 dispatch.fcgi

Missing AddHandler – The error occurs when the AddHandler given below is missing from httpd.conf AND and the user doesn’t have it in his app’s .htaccess either.

AddHandler fastcgi-script .fcgi

SystemExit (Define INLINEDIR or HOME in your environment and try again):
/usr/local/lib/ruby/gems/1.8/gems/RubyInline-3.7.0/lib/inline.rb:93:in `abort’

Fix :

Add the following line in the environment.rb file :

ENV['HOME'] = ‘/home/username’

Rails requires RubyGems >= 1.3.1 (you have 1.2.0). Please `gem update –system` and try again .

Fix :

As it is clear from the error message, updating the RubyGems will resolve this issue.
Reinstall the ruby gems using the following commands:

gem install rubygems-update
update_rubygems

boot.rb:20:Warning: Gem::SourceIndex#search support for String
patterns is deprecated

Fix :

There is a call to Gem Source Index in  boot.rb:

‘Gem.cache.search’

Just replace ‘search’ with ‘find_name’ .

It should look something like this :

rails_gem = Gem.cache.find_name(`rails’,”=#{rails_gem_version}.0″).sort_by { |g| g.version.version}.last

Fix :

Ruby-zlib should be built into Ruby 1.8
Build ruby-zlib manually.

wget http://www.blue.sky.or.jp/atelier/ruby/ruby-zlib-0.6.0.tar.gz
tar xvzf ruby-zlib-0.6.0.tar.gz
cd ruby-zlib-0.6.0
ruby extconf.rb
make
make install

Now, reinstall Ruby Gems from source.

Sometimes, simply installing Oniguruma gem using gem install might not work well.

Fix:

To get around this , do the following :

wget http://www.geocities.jp/kosako3/oniguruma/archive/onig-5.9.1.tar.gz
tar -zxvf onig-5.9.1.tar.gz
cd onig-5.9.1
./configure


Now , you can install the gems using :

gem install oniguruma
gem install textpow

Mod_rails is an Apache module that enables the Ruby on Rails application to work with Apache for delivering high performance. Various tests have proven that passenger apps are faster,reliable and robust when compared to FastCGI/Mongrel served apps.

How passenger apps provide higher performance than a Mongrel/FastCGI application ?

Passenger with Ruby Enterprise edition is significantly better in terms of Virtual Memory Size and there by offers a much more stable performance than its competitors. Moreover passenger process get spawned only when a hit comes for a particular URL and it dies after a sometime.

How to enable passenger of an application and how to restart it ?

Its simple.. Just add the following code to the vhost settings of the domain

RailsBaseURI /

and for restarting passenger just create a file called restart.txt under the tmp directory of the application.. like this

#[yourapp] touch tmp/restart.txt

*    In the newer version of passenger the restart.txt file doesn’t get removed. Instead , the passenger checks the time stamp of the restart.txt and restarts automatically.

Is Mod_rails a right choice for shared hosting environment ?

YES, as we all know mod_rails instances die after a while , saves a lot of memory when compared to mongrel which stay running forever. Also, an improved architectural framework for passenger manages the VM utilization effectively.

Why Ruby Enterprise Edition for Passenger ?

Ruby enterprise edition is a server oriented version of ruby interpreter and it has  advanced memory management features than ordinary Ruby interpreter.

How Apache recognizes passenger ?

We need to load the passenger module by manually including it in the Apache config file.

Add the following lines

LoadModule passenger_module /opt/rubyenterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/passenger-2.1.3/ext/apache2/mod_passenger.so

PassengerRoot /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/passenger-2.1.3