[Backgroundrb-devel] Method hangs for the first time if called synchronously

hemant gethemant at gmail.com
Tue Jul 15 16:09:22 EDT 2008


can you please test the same thing on linux and tell me if it happens there too?

i am aware of something like this happening on mac!

On 7/16/08, Csongor Gyuricza <csgyuricza at gmail.com> wrote:
> This is my first post so I apologize if I am not using the expected
> conventions.
> With backgroundrb version 1.0.4 and Rails version 2.1.0
>
> The problem happens when you call a method for the first time without using
> async_
>
> Steps to reproduce:
>
> 1) Create a new worker with a simple method, that just has
> logger.info'blabla'. For the example the method is called "ppp" and
> worker is
> "test_manager"
> 2) Start backgroundrb and open the rails console
>
> Type in:
>
>>> worker = MiddleMan.worker(:test_manager_worker)
> => #<BackgrounDRb::Rai........ >>
>>> worker.async_ppp
> => nil
> I see 'blabla' in the log
>>> worker.ppp
> => true
> I see 'blabla' in the log again
>
> Everything works until now.
>
> Now to reproduce the problem:
>
> 1) Exit console
> 2) Restart backgroundrb and reopen rails console
>
> Type in:
>
>>> worker = MiddleMan.worker(:test_manager_worker)
> => #<BackgrounDRb::Rai........ >>
>>> worker.ppp
>
> It hangs and never returns. I see nothing in the log. When I abort I get:
>
> CIRB::Abort: abort then interrupt!!
> from /opt/local/lib/ruby/1.8/irb.rb:81:in `irb_abort'
> from /opt/local/lib/ruby/1.8/irb.rb:243:in `signal_handle'
> from /opt/local/lib/ruby/1.8/irb.rb:66:in `start'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/bdrb_connection.rb:157:in
> `call'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/bdrb_connection.rb:157:in
> `select'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/bdrb_connection.rb:157:in
> `read_from_bdrb'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/bdrb_connection.rb:171:in
> `send_request'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/bdrb_connection.rb:171:in
> `synchronize'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/bdrb_connection.rb:171:in
> `send_request'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/rails_worker_proxy.rb:70:in
> `send'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/rails_worker_proxy.rb:70:in
> `invoke_on_connection'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/rails_worker_proxy.rb:57:in
> `run_method'
> from
> /Users/csgyuricza/Sites/Automation/vendor/plugins/backgroundrb/lib/backgroundrb/rails_worker_proxy.rb:33:in
> `method_missing'
> from (irb):2
>
> Then when I exit the console, I see "blabla" in the log.
>
> Is this a bug? Another rails user was able to reproduce this same problem.
> Is this a bug or are we missing something?
> This is not only happening in the console, it happens in my application as
> well. I used the console as an example as it is easier to explain.
>
> Thank you,
>
> Csongor
>

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