Rails 应用程序在部署到 Heroku 时崩溃，不确定如何处理日志，从 1.9.1->1.9.3 开始

Question

好吧，我放弃了，需要你的帮助。我的 Rails 应用程序在 Heroku 上崩溃，并且曾经在 1.9.3 之前工作。我已经完成了 1.9.3 的所有更改，甚至创建了一个新应用程序，但它仍然总是崩溃。在本地运行良好。以下是 heroku 日志中的内容：

2013-01-09T03:00:59+00:00 heroku[web.1]: Starting process with command `bundle exec rails server thin -p 52530
2013-01-09T03:01:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tlsmail-0.0.1/lib/net/pop.rb:689: warning: already initialized constant POP3Session
2013-01-09T03:01:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tlsmail-0.0.1/lib/net/pop.rb:702: warning: already initialized constant APOPSession
2013-01-09T03:01:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tlsmail-0.0.1/lib/net/smtp.rb:806: warning: already initialized constant SMTPSession
2013-01-09T03:01:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tlsmail-0.0.1/lib/net/pop.rb:687: warning: already initialized constant POP
2013-01-09T03:01:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/tlsmail-0.0.1/lib/net/pop.rb:688: warning: already initialized constant POPSession
2013-01-09T03:01:08+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.8/lib/rack/server.rb:283:in `parse_options'
2013-01-09T03:01:08+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.10/lib/rails/commands/server.rb:33:in `parse!' (OptionParser::InvalidArgument)
2013-01-09T03:01:08+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.8/lib/rack/server.rb:180:in `options'
2013-01-09T03:01:08+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.10/lib/rails/commands.rb:54:in `block in <top (required)>'
2013-01-09T03:01:08+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.10/lib/rails/commands.rb:49:in `<top (required)>'
2013-01-09T03:01:08+00:00 app[web.1]:   from script/rails:6:in `require'
2013-01-09T03:01:08+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.10/lib/rails/commands/server.rb:58:in `start'
2013-01-09T03:01:08+00:00 app[web.1]:   from script/rails:6:in `<main>'
2013-01-09T03:01:08+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.10/lib/rails/commands.rb:49:in `tap'
2013-01-09T03:01:08+00:00 app[web.1]: Exiting
2013-01-09T03:01:09+00:00 heroku[web.1]: Process exited with status 1
2013-01-09T03:01:09+00:00 heroku[web.1]: State changed from starting to crashed
2013-01-09T03:01:11+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=xxxxxx.herokuapp.com fwd=xxx.xxx.xxx.xxx dyno= queue= wait= connect= service= status=503 bytes=

Answer 1

好吧，我已经解决了。日志中的线索是：

2013-01-09T03:01:08+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/railties-3.1.10/lib/rails/commands/server.rb:33:in `parse!' (OptionParser::InvalidArgument)

这表明瘦网络服务器无法以传递的参数启动。基于此：https://devcenter.heroku.com/articles/rails3，我将我的 procfile 更改为：

web: bundle exec rails server thin -p $PORT

到这里：

web: bundle exec rails server thin -p $PORT -e $RACK_ENV

并将 RACK_ENV 设置为在我的环境中暂存：

$ echo "RACK_ENV=development" >>.env

现在它可以工作并解决其他问题。