我刚刚创建了一个全新的Rails 3.1.1 应用程序（Ruby 1.8.7）。在应用程序中加入了一些脚手架，安装了Authlogic，并创建了一个新的Heroku应用。将其推送到Heroku并迁移数据库。一切都很好。我可以使用Authlogic创建新用户帐户，并在Heroku上为我的模型创建新记录。
有趣的是，如果我将“worker dynos”从零增加到任何值，heroku日志将显示这些工作程序正在尝试启动并崩溃。
但是，我没有安装Delayed Job，并且从未向此应用程序引入Delayed Job
除了Twilio之外，我也没有引入任何其他“高级”gem或任何高级代码。它只是具有authlogic的新rails应用程序。也没有新的rake任务。
另一个需要注意的事项：在我的本地开发机器上，我曾经试图在不同的应用程序上安装Delayed Job，但失败了。Delayed Job的“幽灵”是否会困扰这个新应用程序呢？
谢谢！
下面是代码.....
当我将Web workers从0-->2增加后的Heroku日志如下。
2012-04-01T11:44:04+00:00 heroku[api]: Scale to web=1, worker=2 by doug@goinfield.com
2012-04-01T11:44:07+00:00 heroku[worker.2]: Starting process with command `bundle exec rake jobs:work`
2012-04-01T11:44:07+00:00 heroku[worker.1]: Starting process with command `bundle exec rake jobs:work`
2012-04-01T11:44:08+00:00 heroku[worker.2]: State changed from starting to up
2012-04-01T11:44:08+00:00 heroku[worker.1]: State changed from starting to up
2012-04-01T11:44:11+00:00 app[worker.2]: rake aborted!
2012-04-01T11:44:11+00:00 app[worker.2]: Don't know how to build task 'jobs:work'
2012-04-01T11:44:11+00:00 app[worker.2]:
2012-04-01T11:44:11+00:00 app[worker.2]: (See full trace by running task with --trace)
2012-04-01T11:44:12+00:00 heroku[worker.2]: Process exited with status 1
2012-04-01T11:44:12+00:00 heroku[worker.2]: State changed from up to crashed
2012-04-01T11:44:12+00:00 heroku[worker.2]: State changed from crashed to created
2012-04-01T11:44:12+00:00 heroku[worker.2]: State changed from created to starting
2012-04-01T11:44:13+00:00 app[worker.1]: rake aborted!
2012-04-01T11:44:13+00:00 app[worker.1]: Don't know how to build task 'jobs:work'
2012-04-01T11:44:13+00:00 app[worker.1]:
2012-04-01T11:44:13+00:00 app[worker.1]: (See full trace by running task with --trace)
2012-04-01T11:44:14+00:00 heroku[worker.1]: Process exited with status 1
2012-04-01T11:44:14+00:00 heroku[worker.1]: State changed from up to crashed
2012-04-01T11:44:14+00:00 heroku[worker.1]: State changed from crashed to created
2012-04-01T11:44:14+00:00 heroku[worker.1]: State changed from created to starting
2012-04-01T11:44:16+00:00 heroku[worker.2]: Starting process with command `bundle exec rake jobs:work`
2012-04-01T11:44:17+00:00 heroku[worker.2]: State changed from starting to up
2012-04-01T11:44:18+00:00 heroku[worker.1]: Starting process with command `bundle exec rake jobs:work`
2012-04-01T11:44:19+00:00 heroku[worker.1]: State changed from starting to up
2012-04-01T11:44:20+00:00 app[worker.2]: rake aborted!
2012-04-01T11:44:20+00:00 app[worker.2]: Don't know how to build task 'jobs:work'
2012-04-01T11:44:20+00:00 app[worker.2]:
2012-04-01T11:44:20+00:00 app[worker.2]: (See full trace by running task with --trace)
2012-04-01T11:44:22+00:00 heroku[worker.2]: Process exited with status 1
2012-04-01T11:44:22+00:00 heroku[worker.2]: State changed from up to crashed
2012-04-01T11:44:22+00:00 app[worker.1]: rake aborted!
2012-04-01T11:44:22+00:00 app[worker.1]: Don't know how to build task 'jobs:work'
2012-04-01T11:44:22+00:00 app[worker.1]:
2012-04-01T11:44:22+00:00 app[worker.1]: (See full trace by running task with --trace)
2012-04-01T11:44:23+00:00 heroku[worker.1]: Process exited with status 1
2012-04-01T11:44:23+00:00 heroku[worker.1]: State changed from up to crashed
Gemfile.lock
GEM
remote: http://rubygems.org/
specs:
actionmailer (3.1.1)
actionpack (= 3.1.1)
mail (~> 2.3.0)
actionpack (3.1.1)
activemodel (= 3.1.1)
activesupport (= 3.1.1)
builder (~> 3.0.0)
erubis (~> 2.7.0)
i18n (~> 0.6)
rack (~> 1.3.2)
rack-cache (~> 1.1)
rack-mount (~> 0.8.2)
rack-test (~> 0.6.1)
sprockets (~> 2.0.2)
activemodel (3.1.1)
activesupport (= 3.1.1)
builder (~> 3.0.0)
i18n (~> 0.6)
activerecord (3.1.1)
activemodel (= 3.1.1)
activesupport (= 3.1.1)
arel (~> 2.2.1)
tzinfo (~> 0.3.29)
activeresource (3.1.1)
activemodel (= 3.1.1)
activesupport (= 3.1.1)
activesupport (3.1.1)
multi_json (~> 1.0)
addressable (2.2.7)
arel (2.2.3)
authlogic (3.1.0)
activerecord (>= 3.0.7)
activerecord (>= 3.0.7)
builder (3.0.0)
coffee-rails (3.1.1)
coffee-script (>= 2.2.0)
railties (~> 3.1.0)
coffee-script (2.2.0)
coffee-script-source
execjs
coffee-script-source (1.2.0)
erubis (2.7.0)
execjs (1.3.0)
multi_json (~> 1.0)
heroku (2.23.0)
launchy (>= 0.3.2)
netrc (~> 0.7.1)
rest-client (~> 1.6.1)
rubyzip
hike (1.2.1)
i18n (0.6.0)
jquery-rails (1.0.16)
railties (~> 3.0)
thor (~> 0.14)
json (1.5.1)
launchy (2.1.0)
addressable (~> 2.2.6)
mail (2.3.3)
i18n (>= 0.4.0)
mime-types (~> 1.16)
treetop (~> 1.4.8)
mime-types (1.18)
multi_json (1.2.0)
netrc (0.7.1)
pg (0.13.2)
polyglot (0.3.3)
rack (1.3.6)
rack-cache (1.2)
rack (>= 0.4)
rack-mount (0.8.3)
rack (>= 1.0.0)
rack-ssl (1.3.2)
rack
rack-test (0.6.1)
rack (>= 1.0)
rails (3.1.1)
actionmailer (= 3.1.1)
actionpack (= 3.1.1)
activerecord (= 3.1.1)
activeresource (= 3.1.1)
activesupport (= 3.1.1)
bundler (~> 1.0)
railties (= 3.1.1)
railties (3.1.1)
actionpack (= 3.1.1)
activesupport (= 3.1.1)
rack-ssl (~> 1.3.2)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (~> 0.14.6)
rake (0.9.2.2)
rdoc (3.12)
json (~> 1.4)
rest-client (1.6.7)
mime-types (>= 1.16)
rubyzip (0.9.4)
sass (3.1.15)
sass-rails (3.1.4)
actionpack (~> 3.1.0)
railties (~> 3.1.0)
sass (>= 3.1.4)
sprockets (~> 2.0.0)
tilt (~> 1.3.2)
sequel (3.20.0)
sinatra (1.0)
rack (>= 1.0)
sprockets (2.0.3)
hike (~> 1.2)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sqlite3 (1.3.4)
sqlite3-ruby (1.3.3)
sqlite3 (>= 1.3.3)
taps (0.3.23)
rack (>= 1.0.1)
rest-client (>= 1.4.0, < 1.7.0)
sequel (~> 3.20.0)
sinatra (~> 1.0.0)
sqlite3-ruby (~> 1.2)
thor (0.14.6)
tilt (1.3.3)
treetop (1.4.10)
polyglot
polyglot (>= 0.3.1)
twiliolib (2.0.7)
builder (>= 2.1.2)
tzinfo (0.3.32)
uglifier (1.2.4)
execjs (>= 0.3.0)
multi_json (>= 1.0.2)
PLATFORMS
ruby
DEPENDENCIES
authlogic
coffee-rails (~> 3.1.1)
heroku
jquery-rails
json
pg
rails (= 3.1.1)
sass-rails (~> 3.1.4)
sqlite3
taps
twiliolib
uglifier (>= 1.0.3)
使用列出的gems进行Heroku推送
-----> Heroku receiving push
-----> Ruby/Rails app detected
-----> Detected Rails is not set to serve static_assets
Installing rails3_serve_static_assets... done
-----> Configure Rails 3 to disable x-sendfile
Installing rails3_disable_x_sendfile... done
-----> Configure Rails to log to stdout
Installing rails_log_stdout... done
-----> Gemfile detected, running Bundler version 1.0.7
Unresolved dependencies detected; Installing...
Using --without development:test
Fetching source index for http://rubygems.org/
Installing rake (0.9.2.2)
Installing multi_json (1.2.0)
Installing activesupport (3.1.1)
Installing builder (3.0.0)
Installing i18n (0.6.0)
Installing activemodel (3.1.1)
Installing erubis (2.7.0)
Installing rack (1.3.6)
Installing rack-cache (1.2)
Installing rack-mount (0.8.3)
Installing rack-test (0.6.1)
Installing hike (1.2.1)
Installing tilt (1.3.3)
Installing sprockets (2.0.3)
Installing actionpack (3.1.1)
Installing mime-types (1.18)
Installing polyglot (0.3.3)
Installing treetop (1.4.10)
Installing mail (2.3.3)
Installing actionmailer (3.1.1)
Installing arel (2.2.3)
Installing tzinfo (0.3.32)
Installing activerecord (3.1.1)
Installing activeresource (3.1.1)
Installing addressable (2.2.7)
Installing authlogic (3.1.0)
Installing coffee-script-source (1.2.0)
Installing execjs (1.3.0)
Installing coffee-script (2.2.0)
Installing rack-ssl (1.3.2)
Installing json (1.5.1) with native extensions
Installing rdoc (3.12)
Installing thor (0.14.6)
Installing railties (3.1.1)
Installing coffee-rails (3.1.1)
Installing launchy (2.1.0)
Installing netrc (0.7.1)
Installing rest-client (1.6.7)
Installing rubyzip (0.9.4)
Installing heroku (2.23.0)
Installing jquery-rails (1.0.16)
Installing pg (0.13.2) with native extensions
Using bundler (1.0.7)
Installing rails (3.1.1)
Installing sass (3.1.15)
Installing sass-rails (3.1.4)
Installing sequel (3.20.0)
Installing sinatra (1.0)
Installing sqlite3 (1.3.4) with native extensions
Installing sqlite3-ruby (1.3.3)
Installing taps (0.3.23)
Installing twiliolib (2.0.7)
Installing uglifier (1.2.4)
Your bundle is complete! It was installed into ./.bundle/gems/
-----> Compiled slug size is 7.8MB
-----> Launching... done, v4
Heroku的堆栈如下所示:
aspen-mri-1.8.6
* bamboo-mri-1.9.2
bamboo-ree-1.8.7
cedar (beta)