search for: drbundumped

Hi. I thought that BackgrounDrb was the perfect solution for my long running report production tasks. But I can''t seem to get anything useful back out of it. I set up a simple test worker that just does class TestWorker < BackgrounDRb::Rails attr_reader :pupil def do_work(args) @progress=0 @pupil=Pupil.find(3) sleep rand*10 @progress=100 end when I try to

Hi, I am getting my hands on trying the cool BackgrounDrb plugin. Following various discussions and suggestsion, I included "include DRbUndumped" in my ActiveRecord model. However, the following exception occurs after I tried this and hit the page that uses this model. Does anyone know why this is so? Is it possible that an object cannot be DRbUndumped (that would mean, we can''t ever pass a reference to such object across...

I''m not sure if this is a problem or not, but it definitely henders the way one would use the passing of objects to the drb server. Isn''t the point of passing objects to the drb server to act like its passing to just another local method? When I pass an object to the drb server a lot of the useful methods are gone. Such as id() or class () or inspect(), etc. I spent a

...omeone tells me why I shouldn''t, I am trying to call new_worker from a test method in the test class generated by the worker generator. I''m getting NoMethodError: undefined method `[]'' for #<DRb::DRbUnknown:0xb72c7128> I note in another thread that this is due to DRbundumped not being included in the class that is causing the error. I took this to mean that I need "include DRbundumped" in my test class, but that didn''t work. I''m not sure where else I should include it. I know that eventually I''ll need to put it in the non-test class...

...class SearchController < ApplicationController def start_search @resources = Resource.find(:all) logger.info @resources.inspect session[:job_key] = MiddleMan.new_worker(:class => :search_worker, :args => @resources) end end class Resource < ActiveRecord::Base include DRbUndumped # attribute, "uri", string end now, my controller logs the array as: [#<Resource:0xb79d9f58 @attributes={"uri"=>"http://www.google.com/search?hl=en&q=ruby+on+rails&btnG=Google+Search", "id"=>"1"}>, #<Resource:0xb79d9ee0 @a...

I tried installing BackgrounDRb today. Followed the readme, made a little worker for myself and executed it within the code. But I keep getting this error. I must''ve gone over the README a zillion times. Any idea what it is? undefined method `[]'' for #<DRb::DRbUnknown:0x2501bd4>

Hi Ezra, Thanks for the great work on BackgrounDRb. I have come across a couple of problems. 1. I wanted to define a simple class in the worker file to wrap up and pass back some data to my controller. It seems that if I create the class either inside or outside of my worker class (in the same file) it gets wrapper by a DRb::DRbUknown object and therefore cannot be accessed from my controller.

Hi *, are there some special settings except of "load_rails: true" to make ActiveRecord models accessible within my workers? I''ve just installed the latest version of this great plugin, but I keep getting undefined method [] for #<DRb::DRbUnknown:0x12345> (line 105 in backgroundrb.rb) when one of the arguments for the worker is an ActiveRecord object. I assume that

In short: how (if possible) would i go about arranging it so that i can instantiate a middleman and set a worker going from within a method in one of my models? or is this a weird thing to be wanting to do? ( My specific situation: I have an ''Image'' model in my application. An actual image file associated with the model is being stored on amazons s3 system.

I have a simple question. Let''s say I do this in one of my models: after_save drb_conn.some_method(self) end When that object gets over to the background process is it the exact same as?.... Model.find some_id #in the background process As far as my background process is concerned passing the object is not any different than passing the id and using the find method? Because

Hi, I have "include DRbUndumped" in one of my model classes. Whenever my app accesses the session I get the following: can''t dump /usr/lib/ruby/1.8/drb/drb.rb:395:in `_dump'' /usr/lib/ruby/1.8/pstore.rb:349:in `dump'' /usr/lib/ruby/1.8/pstore.rb:327:in `transaction'' /usr/lib/ruby/1.8/cgi/se...

...;distrib'' is true (the default) it runs right up to the call to the server and right past it without getting to the server or raising any errors. Am using Ruby 1.8.6.26 , Ringy-Dingy 1.2.1, dj 1.8.4. *********The server: require ''rinda/ring'' class ScriptServer include DRbUndumped attr_accessor :result def run(fullScript) myTS = Time.now.strftime("%Y%m%d%H%M%S") msg = "===> Starting #{scriptname} in run #{scriptrun} on #{scriptenv} at #{myTS}" puts msg @result = "***#{scriptname} Launched [#{scriptlaunch}]" rslt = ful...

...b Service. Built in to the Rails framework. Interoperable with other applications. Easy to get through firewalls/proxy. But I don''t care about interoperability. How fast is XML marshaling/ unmarshaling? Probably requires that I recreate a subset of my domain model in Structs. DRb + DRbUndumped. Send ActiveRecords across as remote proxies. Easy to set up. Faster than XML. Can re-use ActiveRecord. A bit tricky to get right -- where is that method being called? Won''t every method call be a remote call in this design? This fine-grained remote interface approach didn''...

...code and marshall the $application_wide_hash to disk as Yaml or binary and then reload that when rails starts back up. The objects or classes that you put in the AppServer cannot contain procs, lambdas or anything else that cannot be marshalled by ruby and drb. The way around this is to use DrbUndumped. I won''t go into detail about that here but you can look up resources on how to do this with google ;) I have a full chapter on this technique in my forthcoming book that goes into detail of what this process can be used for and what is shouldn''t be used for. As well as...

...hat need to be run at that time. For each job found, the "dispatcher" spawns a "runner" worker that runs the job. So in my "dispatcher" worker, I have some code like this: MiddleMan.new_worker(:class => :runner_worker, :args => job) I did add "include DRbUndumped" in my Job model, and it works fine directly from the console. But from the "dispatcher" worker, I get the following error (see full traceback attached): "interning empty string - (ArgumentError)" How can I get this to work? Is this a known bug? Or is what I am tryin...

...y_worker" require "#{RAILS_ROOT}/vendor/plugins/backgroundrb/lib/backgroundrb.rb" require ''drb'' class MarketSummaryWorkerTest < Test::Unit::TestCase # Replace this with your real tests. def test_truth assert MarketSummaryWorker.included_modules.include?(DRbUndumped) end end Throws error: ------------ /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:123:in `const_missing'': uninitialized constant Worker (NameError) from /home/hemant/ubac_webfront/config/../lib/workers/market_summary_worker.rb:9 from...

I have a pretty strange problem. Here is basically what I have to demonstrate my problem: class Event < ActiveRecord::Base def after_create AnotherClass.find_event(id) end end class AnotherClass < ActiveRecord::Base def self.find_event(event_id) e = Event.find event_id end end Here is the catch 22 and it''s quite annoying. Basically ActiveRecord puts to whole save

Hi, nice work on BackgrounDrb! I have a question, though: What would be the best way to enable database access for a worker, preferably through ActiveRecord models. Background: I''m trying to write a worker that periodically gets data from an external source, writes it to the database and is then displayed by Rails. Anybody done something like this? Thanks in advance! ciao,

Hi, I''m using drbfire to send a "DRbUndumped" ActiveRecord object from the server to the client, through an ADSL line of 4Mbits/s download, and 600Kbits/s upload. I was afraid there would be too many round-trips between the client and the server, and unfortunately this is true: Server code: ------------ #!/usr/local/bin/ruby require &...

...lock! session[:xml_report_job] = MiddleMan.new_worker(:class => :xml_report_worker, :args => args) end def get_progress ... worker = MiddleMan.worker(session[job]) end ... end class XmlReportWorker < BackgrounDRb::Worker::RailsBase include DRbUndumped ... def do_work(args) @progress = 0 @report_start_time = args[:start_time] @report_params = args[:report_params] constraints = args[:constraints] dtd_only = args[:dtd_only] io = Tmpfile.new(''csv_report'',''/var/tmp'') @path =...