在Heroku上没有处理delayed_job队列 [英] delayed_job queue not being processed on Heroku

问题描述

我正在使用delayed_job运行Rails 3应用程序。我遇到的问题是，尽管应用程序正在将作业正确添加到队列中，但它们从未被处理。

我的班级

  class User< ActiveRecord :: Base 
 after_create：send_welcome_email 
 
 private 
 
 def send_welcome_email 
 UserMailer.delay.welcome_email（self）
 end 
结束
  

通过Rails控制台检查事情，我可以看到队列中有作业。我还可以看到有0次尝试执行这些工作。纺一个Heroku工人不会导致工作被处理。

有什么想法？

谢谢！

编辑：尝试按照下面的建议清除作业队列我运行 rake作业：清除并收到以下错误：

  rake中止！ 
未初始化的常量Rake :: DSL 
 /app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.0/lib/rake/tasklib.rb:8:in`< class：TaskLib>'
 /app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.0/lib/rake/tasklib.rb:6:in`< module：Rake>' 
 /app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.0/lib/rake/tasklib.rb:3:in`< top（required）>'
 /app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.0/lib/rake/rdoctask.rb:20:in`< top（required）>'
 / app /.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/tasks/documentation.rake:1:in`< top（requ 
 ired）>'
 /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/tasks.rb:15:in`block in< top（required）> 
'
 /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/tasks.rb:6:in`each'
 / app / .bundle / gems / ruby​​ / 1.9.1 / gems / railties-3.0.7 / lib / rails / tasks.rb：6：在< top（required）>'
 / app /中。 bundle / gems / ruby​​ / 1.9.1 / gems / railties-3.0.7 / lib / rails / application.rb：214：在`initialize_tasks'
 /app/.bundle/gems/ruby/1.9.1/ gems / railties-3.0.7 / lib / rails / application.rb：139：在`load_tasks'
 /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/ rails / application.rb：77：在`method_missing'
 / app / Rakefile：7：在< top（required）>'
 /usr/ruby1.9.2/lib/ruby/1.9 .1 / rake.rb：2373：在`load'中
 /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2373:in`raw_load_rakefile'
 / usr / ruby​​1 .9.2 / lib / ruby​​ / 1.9.1 / rake.rb：2007：在`block in load_rakefile'
 /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2058:in` standard_exception_handling'
 /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2006:in`load_rakefile'
 /usr/ruby1.9.2/lib/ruby/1.9.1/ rake.rb：1991：在'run'
 / usr / ruby​​中1.9.2 / bin / rake：31：在< main>中
  

解决方案

最后，问题变成了Rake 0.9.0中的一个bug。由于Rails依赖于Rake，因此在此Rake发布后，运行 bundle install 打破了我的延迟工作。

将 gem'rake'，'0.8.7'添加到您的gem文件中。

更多详细信息可以在下面找到...

DHH的推文： http：// twitter.com/dhh/status/71966528744071169

在rails_admin的问题跟踪器中进行讨论： https://github.com/sferik/rails_admin/issues/428

I'm running a Rails 3 app with delayed_job. The issue I've come across is that though the app is correctly adding jobs to the queue, they are never being processed.

My Class

class User < ActiveRecord::Base
  after_create :send_welcome_email

  private

    def send_welcome_email
      UserMailer.delay.welcome_email(self)
    end
end

Inspecting things through the Rails console I can see that there are jobs in the queue. I can also see that there have been 0 attempts to perform the jobs. Spinning up a Heroku worker doesn't cause the jobs to be processed.

Any ideas?

Thanks!

Edit: Trying to clear the jobs queue as suggested below I ran rake jobs:clear and received the following error

rake aborted!
uninitialized constant Rake::DSL
/app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.0/lib/rake/tasklib.rb:8:in `<class:TaskLib>'
/app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.0/lib/rake/tasklib.rb:6:in `<module:Rake>'
/app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.0/lib/rake/tasklib.rb:3:in `<top (required)>'
/app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.0/lib/rake/rdoctask.rb:20:in `<top (required)>'
/app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/tasks/documentation.rake:1:in `<top (requ
ired)>'
/app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/tasks.rb:15:in `block in <top (required)>
'
/app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/tasks.rb:6:in `each'
/app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/tasks.rb:6:in `<top (required)>'
/app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/application.rb:214:in `initialize_tasks'
/app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/application.rb:139:in `load_tasks'
/app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.7/lib/rails/application.rb:77:in `method_missing'
/app/Rakefile:7:in `<top (required)>'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2373:in `load'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2373:in `raw_load_rakefile'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2007:in `block in load_rakefile'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2058:in `standard_exception_handling'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2006:in `load_rakefile'
/usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:1991:in `run'
/usr/ruby1.9.2/bin/rake:31:in `<main>'

解决方案

In the end, the problem turned out to be a bug in Rake 0.9.0. As Rails depends on Rake, running bundle install after this release of Rake broke my delayed jobs.

The fix is to add gem 'rake', '0.8.7' to your gemfile.

More details can be found below...

DHH's tweet: http://twitter.com/dhh/status/71966528744071169

Discussion in rails_admin's issue tracker: https://github.com/sferik/rails_admin/issues/428

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