[Backgroundrb-devel] Cannot start workers in production mode

David Balatero david.balatero at gmail.com
Wed Aug 8 14:14:54 EDT 2007


I have a job that I am starting from a Rails controller in production mode
using MiddleMan:

MiddleMan.new_worker(:class => :import_ccg_category_worker, :args => {
:category_id => @category.id, :remote_category_id =>
params[:remote_category_id], :description => "Importing CCG products for #{@
category.name}" })

Both of the category ID variables are just basic integers. I have other
places in my app that I use workers, and they are all producing the same
error. I get the following on stderr when I run script/backgroundrb run:

undefined method `wait' for nil:NilClass - (NoMethodError)
/mnt/home/magicarsenal/admin/releases/20070807014939/vendor/plugins/backgroundrb/server/lib/backgroundrb/middleman.rb:217:in
`new_worker'
/mnt/home/magicarsenal/admin/releases/20070807014939/vendor/plugins/backgroundrb/server/lib/backgroundrb/thread_pool.rb:36:in
`dispatch'
/mnt/home/magicarsenal/admin/releases/20070807014939/vendor/plugins/backgroundrb/server/lib/backgroundrb/thread_pool.rb:22:in
`initialize'
/mnt/home/magicarsenal/admin/releases/20070807014939/vendor/plugins/backgroundrb/server/lib/backgroundrb/thread_pool.rb:22:in
`new'
/mnt/home/magicarsenal/admin/releases/20070807014939/vendor/plugins/backgroundrb/server/lib/backgroundrb/thread_pool.rb:22:in
`dispatch'
/mnt/home/magicarsenal/admin/releases/20070807014939/vendor/plugins/backgroundrb/server/lib/backgroundrb/middleman.rb:199:in
`new_worker'
/usr/lib/ruby/1.8/drb/drb.rb:1555:in `__send__'
/usr/lib/ruby/1.8/drb/drb.rb:1555:in `perform_without_block'
/usr/lib/ruby/1.8/drb/drb.rb:1515:in `perform'
/usr/lib/ruby/1.8/drb/drb.rb:1589:in `main_loop'
/usr/lib/ruby/1.8/drb/drb.rb:1585:in `loop'
/usr/lib/ruby/1.8/drb/drb.rb:1585:in `main_loop'
/usr/lib/ruby/1.8/drb/drb.rb:1581:in `start'
/usr/lib/ruby/1.8/drb/drb.rb:1581:in `main_loop'
/usr/lib/ruby/1.8/drb/drb.rb:1430:in `run'
/usr/lib/ruby/1.8/drb/drb.rb:1427:in `start'
/usr/lib/ruby/1.8/drb/drb.rb:1427:in `run'
/usr/lib/ruby/1.8/drb/drb.rb:1347:in `initialize'
/usr/lib/ruby/1.8/drb/drb.rb:1627:in `new'
/usr/lib/ruby/1.8/drb/drb.rb:1627:in `start_service'
/mnt/home/magicarsenal/admin/releases/20070807014939/vendor/plugins/backgroundrb/server/lib/backgroundrb_server.rb:315:in
`run'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons/application.rb:193:in
`call'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons/application.rb:193:in
`start_proc'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons/application.rb:203:in
`call'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons/application.rb:203:in
`start_proc'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons/application.rb:233:in
`start'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons/controller.rb:72:in
`run'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons.rb:185:in `run_proc'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons/cmdline.rb:105:in
`call'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons/cmdline.rb:105:in
`catch_exceptions'
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.6/lib/daemons.rb:184:in `run_proc'
/mnt/home/magicarsenal/admin/releases/20070807014939/vendor/plugins/backgroundrb/server/lib/backgroundrb_server.rb:301:in
`run'
script/backgroundrb:29

I am at a loss to explain what is going on here. BackgrounDRb::VERSION
reports I run version 0.2.1 of backgroundrb. I have version 1.2.1 of slave,
and version 1.0.6 of daemons installed. My backgroundrb.yml file is the
following:

---
port: "22222"
timer_sleep: 60
load_rails: true
environment: production
host: 127.0.0.1
database_yml: config/database.yml
acl:
  deny: all
  allow: localhost 127.0.0.1
  order: deny,allow


Hopefully someone can help me get through this, because I am in the middle
of deploying our first app, and it would suck to be delayed any more.

Thanks in advance!
David Balatero
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