Ruby on Rails -延迟作业-作业队列没有添加到数据库中。

Jobs queue are not adding in delayed_jobs table, when it is daemonized. But that works when it is not daemonized.

当任务队列被精灵化时，它不会添加到delayed_jobs表中。但当它没有被妖魔化时，它就会起作用。

I have three rake tasks(a.rake, b.rake, c.rake).

我有三个耙任务。耙,b。耙,c.rake)。

In a.rake

在a.rake

task :run_a => :environment do
  A.new.get_a_data
end

class A
 def get_a_data
   ...
   schedule_next_a_job
 end

 def schedule_next_a_job
   get_a_data
 end

handle_asynchronously :get_a_data, :run_at => Proc.new { 2.minutes.from_now }, :queue => 'a'
end

In b.rake

在b.rake

task :run_b => :environment do
  B.new.get_b_data
end

class B
 def get_b_data
  ...
  schedule_next_b_job
 end

 def schedule_next_b_job
   get_b_data
 end

handle_asynchronously :get_b_data, :run_at => Proc.new { 5.minutes.from_now }, :queue => 'b'
end

In c.rake

在c.rake

namespace :run do
  task :start do
  `rake run_a`
  `rake run_b`
  if Rails.env == 'development'
    `QUEUES=a,b rake jobs:work`
  else
    `RAILS_ENV=production bin/delayed_job --queues=a,b start` 
  end

  task :stop do
  `rake jobs:clear`
  end
end

In console, i run like below:

在控制台，我运行如下:

RAILS_ENV=production rake run:start # to start jobs worker
rake run:stop # to clear my jobs worker

In my delayed jobs table last_error is showing as:

在我的延迟作业表last_error中显示为:

Job failed to load: undefined class/module A

工作失败:未定义的类/模块A。

Job failed to load: undefined class/module B

作业装载失败:未定义的类/模块B

Can anyone help me to get rid of this problem?

有人能帮我解决这个问题吗?

Thanks in Advance.

提前谢谢。

1 个解决方案

#1

One common cause of deserialization errors is that the YAML references a class not known to the worker. If this is the case, you can add

反序列化错误的一个常见原因是YAML引用了一个不知道该worker的类。如果是这样，你可以加上

# file: config/initializers/custom.rb
    require 'my_custom_class'

which will force my_custom_class to be loaded when the worker starts. Reference

这将强制在worker启动时加载my_custom_class。参考

#1