A blog about Ruby, Rails and other Tech. Mostly.

23rd Aug 2006, 6:10pm

SCGI rails runner and ECONNRESET problem

There is a hack for running Rails via the SCGI rails runner that is still required, despite this ticket being open for 8 months.

This is the change to cgi_process.rb

# /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.xx.xx/lib/action_controller/cgi_process.rb: 



  def out(output = $stdout)

      convert_content_type!(@headers)

      output.binmode      if output.respond_to?(:binmode)

      output.sync = false if output.respond_to?(:sync=)




      begin

        output.write(@cgi.header(@headers))



        if @cgi.send(:env_table)['REQUEST_METHOD'] == 'HEAD'

          return

        elsif @body.respond_to?(:call)

          @body.call(self, output)

        else

          output.write(@body)


        end



        output.flush if output.respond_to?(:flush)

      rescue Errno::EPIPE => e

        # lost connection to the FCGI process -- ignore the output, then

      rescue Errno::ECONNRESET => e

        # same as above but for scgi.


      end

    end

If you don't have this hack in place, Rails will occasionally die with an ECONNRESET, and your website will be toast until you kill and restart the scgi rails runner.