# Threading in Rails **URL:** \ **Category:** Rails\ **Created:** [September 24, 2008, 1:15pm UTC](https://www.ruby-forum.com/t/threading-in-rails/149399 "2008-09-24T13:15:53Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Jaikishan\_J](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ad7895/32.png) [@Jaikishan\_J](https://www.ruby-forum.com/u/Jaikishan_J)\ **Post date:** [September 24, 2008, 1:15pm UTC](https://www.ruby-forum.com/t/threading-in-rails/149399/1 "2008-09-24T13:15:53Z")
Hello, I was wondering if someone can point me how to invoke threads from an action in a controller. Basically, in an action, I want to do some tasks asynchronously for which user need not wait. – Thanks, Jaikishan ---
**Author:** ![Jaikishan\_J](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ad7895/32.png) [@Jaikishan\_J](https://www.ruby-forum.com/u/Jaikishan_J)\ **Post date:** [September 24, 2008, 1:20pm UTC](https://www.ruby-forum.com/t/threading-in-rails/149399/2 "2008-09-24T13:20:34Z")
It isn’t safe (at least not now) to create threads in Rails, but you can use something like Background Job → [http://codeforpeople.com/lib/ruby/bj/bj-1.0.1/README](http://codeforpeople.com/lib/ruby/bj/bj-1.0.1/README) On Wed, Sep 24, 2008 at 8:15 AM, Jaikishan J. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > – Maurício Linhares [http://alinhavado.wordpress.com/](http://alinhavado.wordpress.com/) (pt-br) | [http://blog.codevader.com/](http://blog.codevader.com/) (en) João Pessoa, PB, +55 83 8867-7208 ---
**Author:** ![Jaikishan\_J](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ad7895/32.png) [@Jaikishan\_J](https://www.ruby-forum.com/u/Jaikishan_J)\ **Post date:** [September 24, 2008, 1:28pm UTC](https://www.ruby-forum.com/t/threading-in-rails/149399/3 "2008-09-24T13:28:50Z")
Will look into it. On Wed, Sep 24, 2008 at 4:49 PM, Maurício Linhares \< removed\_email\_address@domain.invalid\> wrote: > action > > – > Maurício Linhares > [http://alinhavado.wordpress.com/](http://alinhavado.wordpress.com/) (pt-br) | [http://blog.codevader.com/](http://blog.codevader.com/) (en) > João Pessoa, PB, +55 83 8867-7208 > > > – Thanks, Jaikishan “Enjoying the rights of being intelligent ignorant” ---
**Author:** ![Jaikishan\_J](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ad7895/32.png) [@Jaikishan\_J](https://www.ruby-forum.com/u/Jaikishan_J)\ **Post date:** [September 24, 2008, 1:30pm UTC](https://www.ruby-forum.com/t/threading-in-rails/149399/4 "2008-09-24T13:30:35Z")
Does this background job maintains a queue sort of thing? If yes, then how does some tasks can be concurrently executed? On Wed, Sep 24, 2008 at 4:57 PM, Jaikishan J. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > Thanks, > > > [http://alinhavado.wordpress.com/](http://alinhavado.wordpress.com/) (pt-br) | [http://blog.codevader.com/(en)](http://blog.codevader.com/(en)) > > > “Enjoying the rights of being intelligent ignorant” – Thanks, Jaikishan “Enjoying the rights of being intelligent ignorant” ---
**Author:** ![Jaikishan\_J](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ad7895/32.png) [@Jaikishan\_J](https://www.ruby-forum.com/u/Jaikishan_J)\ **Post date:** [September 24, 2008, 4:05pm UTC](https://www.ruby-forum.com/t/threading-in-rails/149399/5 "2008-09-24T16:05:17Z")
Check out the last two Railscasts. > **[\#127 Rake in Background - RailsCasts](http://railscasts.com/episodes/127-rake-in-background)** > > Short Ruby on Rails screencasts containing tips, tricks and tutorials. Great for both novice and experienced web developers. > **[\#128 Starling and Workling - RailsCasts](http://railscasts.com/episodes/128-starling-and-workling)** > > Short Ruby on Rails screencasts containing tips, tricks and tutorials. Great for both novice and experienced web developers. I think this might be what you need. ---
**Author:** ![Jaikishan\_J](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ad7895/32.png) [@Jaikishan\_J](https://www.ruby-forum.com/u/Jaikishan_J)\ **Post date:** [September 24, 2008, 1:42pm UTC](https://www.ruby-forum.com/t/threading-in-rails/149399/6 "2008-09-24T13:42:55Z")
Background job usually runs a job at a time, which is cool as Ruby itself is almost “single threaded”, but if you want a solution with concurrent job execution, you can try SkyNet → [http://skynet.rubyforge.org/](http://skynet.rubyforge.org/) On Wed, Sep 24, 2008 at 8:29 AM, Jaikishan J. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Does this background job maintains a queue sort of thing? If yes, then how > does some tasks can be concurrently executed? – Maurício Linhares [http://alinhavado.wordpress.com/](http://alinhavado.wordpress.com/) (pt-br) | [http://blog.codevader.com/](http://blog.codevader.com/) (en) João Pessoa, PB, +55 83 8867-7208 ---
**Author:** ![Jaikishan\_J](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ad7895/32.png) [@Jaikishan\_J](https://www.ruby-forum.com/u/Jaikishan_J)\ **Post date:** [September 25, 2008, 8:46am UTC](https://www.ruby-forum.com/t/threading-in-rails/149399/7 "2008-09-25T08:46:19Z")
I installed skynet in my rails application using $skynet\_install --rails . After this, when I try to start my server (Mongreal), it throws me following error. =\> Booting Mongrel (use ‘script/server webrick’ to force WEBrick) =\> Rails application starting on [http://127.0.0.1:3005](http://127.0.0.1:3005) =\> Call with -d to detach =\> Ctrl-C to shutdown server \*\* Starting Mongrel listening at 127.0.0.1:3005 \*\* Starting Rails with development environment… Exiting /home/jaikishan/aptana/plugins/org.jruby\_1.1.0.5965\_RC2p2/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `require': no such file to load -- skynet (MissingSourceFile) from /home/jaikishan/aptana/plugins/org.jruby_1.1.0.5965_RC2p2/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `new\_constants\_in’ from /home/jaikishan/aptana/plugins/org.jruby\_1.1.0.5965\_RC2p2/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/dependencies.rb:318:in `require' from /home/jaikishan/aptana/plugins/org.jruby_1.1.0.5965_RC2p2/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496 from /home/jaikishan/aptana/plugins/org.jruby_1.1.0.5965_RC2p2/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require’ from /home/jaikishan/aptana/plugins/org.jruby\_1.1.0.5965\_RC2p2/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `require' from /home/jaikishan/aptana/plugins/org.jruby_1.1.0.5965_RC2p2/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `new\_constants\_in’ from /home/jaikishan/aptana/plugins/org.jruby\_1.1.0.5965\_RC2p2/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/dependencies.rb:318:in `require' from /home/jaikishan/aptana/plugins/org.jruby_1.1.0.5965_RC2p2/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496 ... 35 levels... from /home/jaikishan/aptana/workspace/Analytics/./script/server:3 from -e:2:in `load’ from -e:2 What to do now? On Wed, Sep 24, 2008 at 7:34 PM, Fred [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > Hello, – Thanks, Jaikishan “Enjoying the rights of being intelligent ignorant”