DelayedJob with acts_as_ferret in production mode

I get the following error when I run my task via DelayedJob:

closed stream
/usr/lib/ruby/1.8/drb/drb.rb:961:in `select'
/usr/lib/ruby/1.8/drb/drb.rb:961:in `alive?'
/usr/lib/ruby/1.8/drb/drb.rb:1211:in `alive?'
/usr/lib/ruby/1.8/drb/drb.rb:1168:in `open'
/usr/lib/ruby/1.8/drb/drb.rb:1166:in `each'
/usr/lib/ruby/1.8/drb/drb.rb:1166:in `open'
/usr/lib/ruby/1.8/drb/drb.rb:1163:in `synchronize'
/usr/lib/ruby/1.8/drb/drb.rb:1163:in `open'
/usr/lib/ruby/1.8/drb/drb.rb:1092:in `method_missing'
/usr/lib/ruby/1.8/drb/drb.rb:1110:in `with_friend'
/usr/lib/ruby/1.8/drb/drb.rb:1091:in `method_missing'
/usr/lib/ruby/gems/1.8/gems/acts_as_ferret-0.4.3/lib/remote_index.rb:31:in `<<'
/usr/lib/ruby/gems/1.8/gems/acts_as_ferret-0.4.3/lib/instance_methods.rb:90:in `ferret_update'
...

From the error its obvious that delayed_job could not find the 开发者_StackOverflow中文版ferret_server. However, when I run this SAME task from console in production mode, it works fine. Any ideas how I can ensure that delayed_job has:

1. really loaded the production environment. I set RAILS['ENV]] = 'production' in the script/delayed_job to ensure this. (I guess this should be good)

2. got ferret configured via models?

This happened to me too. You need to disable ferret from indexing during the running of the delayed job.

In your worker definition (something like RAILS_ROOT/lib/worker.rb), and given a model called Post, you should include a line like this:

class Worker < Struct.new(:stuff)
  def perform
    Post.disable_ferret
    <do some stuff>
    .
    .
    .
  end
end