楼上能否详细说明一下，DelayedJob 怎么重启，为什么不重启就不会运行呢？ https://github.com/collectiveidea/delayed_job 这里好像没提到呀。。。

########################################### clock.rb 文件定义如下： require File.expand_path('../../config/boot', FILE) require File.expand_path('../../config/environment', FILE) require 'clockwork' include Clockwork

every(5.seconds, 'Queueing BaseProcessorJob job') { Delayed::Job.enqueue BaseProcessorJob.new }

class BaseProcessorJob def perform raise NotImplementedError end

def error(job, exception) Rails.logger.error "Job failed #{exception}" end end

########################################### Procfile 文件定义如下： web: bundle exec rails server worker: bundle exec rake jobs:work clock: bundle exec clockwork lib/clock.rb

########################################### 通过 foreman start 启动： 13:50:11 web.1 | started with pid 22952 13:50:11 worker.1 | started with pid 22954 13:50:11 clock.1 | started with pid 22956

########################################### 执行时 delayed_jobs.last_error 里的记录： Job failed to load: uninitialized constant BaseProcessorJob. Handler: "--- !ruby/object:BaseProcessorJob {}\n\n" /home/evan/.rvm/gems/ruby-1.9.2-p320/gems/delayed_job-3.0.4/lib/delayed/backend/base.rb:87:in rescue in payload_object' /home/evan/.rvm/gems/ruby-1.9.2-p320/gems/delayed_job-3.0.4/lib/delayed/backend/base.rb:85:inpayload_object' /home/evan/.rvm/gems/ruby-1.9.2-p320/gems/delayed_job-3.0.4/lib/delayed/backend/base.rb:95:in block in invoke_job' /home/evan/.rvm/gems/ruby-1.9.2-p320/gems/delayed_job-3.0.4/lib/delayed/lifecycle.rb:60:incall' /home/evan/.rvm/gems/ruby-1.9.2-p320/gems/delayed_job-3.0.4/lib/delayed/lifecycle.rb:60:in `block in initialize' .................................................................