LiteSpeed Support Forums - my rails runner

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- - my rails runner (http://www.litespeedtech.com/support/forum/showthread.php?t=3750)

I want share with you my modified RailsRunner it works only with rack rails 2.3 i had separate RailsRunner for older version to if somone want i can post it too

There is a few modifications:

1. Process name changed now we see what is process name
it looks like:

91436 ?? S 3:33.42 ruby: RAILS: fdb.pl (production) (ruby)
91437 ?? S 3:53.94 ruby: RAILS: fdb.pl (production) (ruby)
91438 ?? S 3:29.63 ruby: RAILS: fdb.pl (production) (ruby)
91439 ?? S 3:49.33 ruby: RAILS: fdb.pl (production) (ruby)

you must set APP_NAME varible in litespeed env or it will use directory where you app is placed.

2. second change is FIX problem with ENV varible
after call server = Rack::Handler::LSWS ENV varible disaperd i rewrite it again.

Code:

#!/opt/ruby/bin/ruby 

#

Dir.chdir(ENV['RAILS_ROOT'])



$0="RAILS: #{ENV['APP_NAME'] || ENV['RAILS_ROOT']} (#{ENV['RAILS_ENV']})"

if GC.respond_to?(:copy_on_write_friendly=)

   GC.copy_on_write_friendly = true

end





require 'config/boot'

require 'active_support'

require 'action_controller'

require 'fileutils'



options = {

  :environment => (ENV['RAILS_ENV'] || "development").dup,

  :config => RAILS_ROOT + "/config.ru",

  :detach => false,

  :debugger => false

}



# fix bug in lsapi (ENV var disapper)

env = ENV

server = Rack::Handler::LSWS

env.each { |k,v| ENV[k] ||= v }



if File.exist?(options[:config])

  config = options[:config]

  if config =~ /\.ru$/

    cfgfile = File.read(config)

    if cfgfile[/^#\\(.*)/]

      opts.parse!($1.split(/\s+/))

    end

    inner_app = eval("Rack::Builder.new {( " + cfgfile + "\n )}.to_app", nil, config)

  else

    require config

    inner_app = Object.const_get(File.basename(config, '.rb').capitalize)

  end

else

  require 'config/environment'

  inner_app = ActionController::Dispatcher.new

end



app = Rack::Builder.new {

  use Rails::Rack::Static

  use Rails::Rack::Debugger if options[:debugger]

  run inner_app

}.to_app



ActiveRecord::Base.clear_all_connections! if defined?(ActiveRecord::Base)





begin

  server.run(app, options.merge(:AccessLog => []))

ensure

  puts 'Exiting'

end

hope that we be usefull for somone :)

incorporate the "process name change" feature into our official Rails Runner code.

After trouble shooting an issue with radiantCMS, I come up a new RailsRunner to address following issues:

1. Failed to detect Rails version when application bundled with Rails like radiantCMS.
use Rails::VERSION::STRING to get rails_ver now
2. Add our own rack handler into RailsRunner, so, no need to patch Rack anymore.

The new RailsRunners.rb is

Code:

#!/usr/bin/ruby



$0="RAILS: #{ENV['APP_NAME'] || ENV['RAILS_ROOT']} (#{ENV['RAILS_ENV']})"

if GC.respond_to?(:copy_on_write_friendly=)

    GC.copy_on_write_friendly = true

end



Dir.chdir( ENV['RAILS_ROOT'] )

require 'config/boot'



rails_ver = Rails::VERSION::STRING



#if defined? RAILS_GEM_VERSION

#    rails_ver = RAILS_GEM_VERSION

#elsif ENV.include?('RAILS_GEM_VERSION')

#    rails_ver = ENV['RAILS_GEM_VERSION']

#else

#    environmentrb = File.read('config/environment.rb')

#    rails_ver = $1 if environmentrb =~ /^[^#]*RAILS_GEM_VERSION\s*=\s*["']([!~<>=]*\s*[\d.]+)["']/

#end



if rails_ver != nil and rails_ver >= '2.3.0'

    #use rack

    require 'active_support'

    require 'action_controller'

    require 'fileutils'



    require 'rack/content_length'

    require 'lsapi'



    module Rack

      module Handler

        class LiteSpeed

          def self.run(app, options=nil)

            while LSAPI.accept != nil

                serve app

            end

          end

          def self.serve(app)

            app = Rack::ContentLength.new(app)



            env = ENV.to_hash

            env.delete "HTTP_CONTENT_LENGTH"

            env["SCRIPT_NAME"] = "" if env["SCRIPT_NAME"] == "/"



            rack_input = StringIO.new($stdin.read.to_s)



            env.update(

              "rack.version" => [1,0],

              "rack.input" => rack_input,

              "rack.errors" => $stderr,

              "rack.multithread" => false,

              "rack.multiprocess" => true,

              "rack.run_once" => false,

              "rack.url_scheme" => ["yes", "on", "1"].include?(ENV["HTTPS"]) ? "https" : "http"

            )



            env["QUERY_STRING"] ||= ""

            env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"]

            env["REQUEST_PATH"] ||= "/"

            status, headers, body = app.call(env)

            begin

              send_headers status, headers

              send_body body

            ensure

              body.close if body.respond_to? :close

            end

          end

          def self.send_headers(status, headers)

            print "Status: #{status}\r\n"

            headers.each { |k, vs|

              vs.split("\n").each { |v|

                print "#{k}: #{v}\r\n"

              }

            }

            print "\r\n"

            STDOUT.flush

          end

          def self.send_body(body)

            body.each { |part|

              print part

              STDOUT.flush

            }

          end

        end

      end

    end

    

    options = {

        :environment => (ENV['RAILS_ENV'] || "development").dup,

        :config => RAILS_ROOT + "/config.ru",

        :detach => false,

        :debugger => false

    }

    

    server = Rack::Handler::LiteSpeed

    

    if File.exist?(options[:config])

        config = options[:config]

    if config =~ /\.ru$/

        cfgfile = File.read(config)

        if cfgfile[/^#\\(.*)/]

            opts.parse!($1.split(/\s+/))

        end

        inner_app = eval("Rack::Builder.new {( " + cfgfile + "\n )}.to_app", nil, config)

    else

        require config

        inner_app = Object.const_get(File.basename(config, '.rb').capitalize)

    end

    else

        require 'config/environment'

        inner_app = ActionController::Dispatcher.new

    end

    

    app = Rack::Builder.new {

        use Rails::Rack::Static

        use Rails::Rack::Debugger if options[:debugger]

        run inner_app

    }.to_app



    ActiveRecord::Base.clear_all_connections! if defined?(ActiveRecord::Base)



    begin

        server.run(app, options.merge(:AccessLog => []))

    ensure

        puts 'Exiting'

    end

 

else

  

    require 'config/environment'

    

    require 'initializer'

    require 'dispatcher'

    

    #require 'breakpoint' if defined?(BREAKPOINT_SERVER_PORT)



    #if RAILS_ENV=='production'

    #   require_dependency 'application'

    #   Dir.foreach( "app/models" ) {|f| silence_warnings{require_dependency f} if f =~ /\.rb$/}

    #   Dir.foreach( "app/controllers" ) {|f|  silence_warnings{require_dependency f} if f =~ /\.rb$/}

    #end



    require 'lsapi'



    #Close all DB connections established during initialization

    if defined?(ActiveRecord::Base)

    if defined?(ActiveRecord::Base.clear_active_connections!)

        ActiveRecord::Base.clear_active_connections!

    else

        ActiveRecord::Base.connection.disconnect!

        @reconnect = true

        ActiveRecord::Base.establish_connection

    end

    end



    while LSAPI.accept != nil

        if defined?(ActiveRecord::Base) and @reconnect

            ActiveRecord::Base.connection.reconnect!

            @reconnect = false

        end



        Dispatcher.dispatch

    end

end

I think there is 1 litle problem with RailsRunner:

Code:

 require 'active_support' 

 require 'action_controller'

if you include config/boot i think they are arledy loaded if not
it will load newest version of this libs even application runing older rails
(if there is 2 rails version installed in system exemple: 2.3.5 and 2.3.4)

So, you think it is safe to remove those. it was in the original RailsRunner.

Quote:

Originally Posted by mistwang (Post 18968)

So, you think it is safe to remove those. it was in the original RailsRunner.

i didn't checked yet but when i will test new loader (with include boot.rb) i will inform you.