Hi, I am developing a web based game in which people try to guess the concealed word in a collaborative manner.
As you already take for granted, I use ruby on rails on the server side. But I have a problem, I synchronize the method which arranges games and informs the users using a Mutex. Though I didn't tested heavily, it seemed to work on the development server. But when I deployed the project onto the production server, it seems that it's not functioning (or there may be some other problem) On the development, I use a mongrel server, which I start on the command line (script/server -b bla bla -p 3000) On the production server, I use Passenger with the default settings. First I suspected that this problem is originating because Passenger was spawning processes and they are not sharing the mutex. But I checked the documentation but couldn't find a mention of it. And in this link (http://m.onkey.org/2008/10/23/thread-safety-for-your-rails) it says that it's OK to use Mutexes (though not mentioning the multiprocess passenger). What do you think the problem is about? I am posting a code snippet which exemplifies my usage of Mutexes. Here is the relevant versions: Production: Passenger: 2.2.2 Apache: 2.2.8-1ubuntu0.9 About your application's environment Ruby version 1.8.6 (x86_64-linux) RubyGems version 1.3.1 Rack version 1.0 bundled Rails version 2.3.2 Active Record version 2.3.2 Action Pack version 2.3.2 Active Resource version 2.3.2 Action Mailer version 2.3.2 Active Support version 2.3.2 Edge Rails revision unknown Application root XXXX Environment development Database adapter mysql Development: About your application's environment Ruby version 1.8.7 (i486-linux) RubyGems version 1.3.1 Rack version 1.0 bundled Rails version 2.3.2 Active Record version 2.3.2 Action Pack version 2.3.2 Active Resource version 2.3.2 Action Mailer version 2.3.2 Active Support version 2.3.2 Edge Rails revision unknown Application root XXXX Environment development Database adapter mysql Database schema version 20090701025248 Here is the code: def GameControl @@semaphore = Mutex.new def GameControl.start_game(user, singlegame = false) @@semaphore.synchronize { do the stuff here which I want to be processed by only one at a time. } end end -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
