【发布时间】：2012-03-31 00:19:36
【问题描述】：
我正在尝试正确使用 Capistrano 和 RVM，以便将我的 Ruby on Rails 3.2.2 应用程序部署到运行 Ubuntu 10.04 LTS 的远程机器上。它接缝解决了我之前与“Rvm - Capistrano integration on Linux Ubuntu”相关的问题。但是，在部署时，我收到以下与 DelayedJob gem 相关的错误：
...
* executing "cd /srv/www/<APP_NAME>/releases/20120314135318 && bundle install"
servers: ["<DOMAIN>"]
[<DOMAIN>] executing command
[<DOMAIN>] rvm_path=/usr/local/rvm /usr/local/rvm/bin/rvm-shell 'ruby-1.9.3-p125' -c 'cd /srv/www/<APP_NAME>/releases/20120314135318 && bundle install' ** [out :: <DOMAIN>] Using rake (0.9.2.2)
** [out :: <DOMAIN>] Using builder (3.0.0)
...
** [out :: <DOMAIN>] Using daemons (1.1.8)
** [out :: <DOMAIN>] Using delayed_job (3.0.1)
** [out :: <DOMAIN>] Using delayed_job_active_record (0.3.2)
...
** [out :: <DOMAIN>] Your bundle is complete! It was installed into /srv/www/<APP_NAME>/shared/bundle
...
[<DOMAIN>] executing command
[<DOMAIN>] rvm_path=/usr/local/rvm /usr/local/rvm/bin/rvm-shell 'ruby-1.9.3-p125' -c 'cd /srv/www/<APP_NAME>/current; RAILS_ENV=production script/delayed_job stop'
*** [err :: <DOMAIN>] /usr/local/rvm/gems/ruby-1.9.3-p125/gems/delayed_job-3.0.1/lib/delayed/command.rb:4:in `rescue in <top (required)>'
*** [err :: <DOMAIN>] :
*** [err :: <DOMAIN>] You need to add gem 'daemons' to your Gemfile if you wish to use it.
*** [err :: <DOMAIN>] (
*** [err :: <DOMAIN>] RuntimeError
*** [err :: <DOMAIN>] )
*** [err :: <DOMAIN>] from /usr/local/rvm/gems/ruby-1.9.3-p125/gems/delayed_job-3.0.1/lib/delayed/command.rb:1:in `<top (required)>'
*** [err :: <DOMAIN>] from /usr/local/rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:251:in `require'
*** [err :: <DOMAIN>] from /usr/local/rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:251:in `block in require'
*** [err :: <DOMAIN>] from /usr/local/rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:236:in `load_dependency'
*** [err :: <DOMAIN>] from /usr/local/rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:251:in `require'
*** [err :: <DOMAIN>] from script/delayed_job:4:in `<main>'
command finished in 7512ms
*** [deploy:update_code] rolling back
...
failed: "rvm_path=$HOME/.rvm/ $HOME/.rvm/bin/rvm-shell 'ruby-1.9.3-p125' -c 'cd /srv/www/<APP_NAME>/releases && tar xzf /tmp/20120314140345.tar.gz && rm /tmp/20120314140345.tar.gz'" on <DOMAIN>
即使错误解释是“如果你想使用它，你需要将 gem 'daemons' 添加到你的 Gemfile 中”，我已经将 daemons gem 添加到我的 Gemfile （从上面的输出中你甚至可以注意我是“使用守护进程（1.1.8）”）：
...
gem 'delayed_job'
gem 'delayed_job_active_record'
gem 'daemons'
...
那么，有什么问题？我该如何解决？
在我的deploy.rb 文件中，我有：
$:.unshift(File.expand_path('./lib', ENV['rvm_path']))
require 'rvm/capistrano'
set :rvm_ruby_string, 'ruby-1.9.3-p125'
set :rvm_type, :user
require 'bundler/capistrano'
...
P.S.：终端窗口输出：
$ ruby -v
> ruby 1.9.3p125 (2012-02-16 revision 34643) [i686-linux]
$ which ruby
> /usr/local/rvm/rubies/ruby-1.9.3-p125/bin/ruby
【问题讨论】：
-
脚本/delayed_job 是不是你的？它需要捆绑器吗？
-
@shingara - “是不是你的”是什么意思？使用“script/delayed_job”，您指的是什么文件？但是，上面的代码/输出都是“我的”（也就是说，代码和输出都是“真实的”/“我正在使用和得到的”）。
-
在日志中你失败的命令是：
RAILS_ENV=production script/delayed_job stop我想知道这个脚本是生成的还是你创建的。 -
@shingara - 该输出指的是 DelayedJob 工作人员。它是通过运行
config/deploy.rb文件中的"cd #{current_path}; #{try_sudo} RAILS_ENV=production script/delayed_job -n 2 start"代码生成的。
标签： ruby-on-rails ruby rvm capistrano delayed-job