如何使用delayed_job查看排队作业的情况？
我一直在运行delayed_job并遇到一些错误，但现在我不知道作业队列中有什么或者它们发生了什么......
我怎样才能弄清楚这一点，以便我可以调试它是否能够执行已放入队列中的内容？
这是我调用该作业（它是 cron 任务的一部分）及其调用的邮件程序的地方：
class SomeMailJob < Struct.new(:contact, :contact_email)
def perform
OutboundMailer.deliver_campaign_email(contact,contact_email)
end
end
#class OutboundMailer < ActionMailer::Base
class OutboundMailer < Postage::Mailer
def campaign_email(contact,email)
subject email.subject
recipients contact.email
from 'Timothy Fong <[email protected]>'
sent_on Date.today
body :email => email
end
I have been running delayed_job and was hitting some errors, but now I don't know what is sitting in the job queue or what's going on with them....
How can I figure that out so I can debug whether it is able to execute what has been put in the queue?
Here is where I call the job (it is part of a cron task) and the mailer it calls:
class SomeMailJob < Struct.new(:contact, :contact_email)
def perform
OutboundMailer.deliver_campaign_email(contact,contact_email)
end
end
#class OutboundMailer < ActionMailer::Base
class OutboundMailer < Postage::Mailer
def campaign_email(contact,email)
subject email.subject
recipients contact.email
from 'Timothy Fong <[email protected]>'
sent_on Date.today
body :email => email
end
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您可以通过Delayed::Job模型深入了解您的delayed_job队列（我认为它的名称可能在以后的版本中发生了变化）。它只是一个 ActiveRecord 模型，您可以执行对普通模型所做的所有操作。查找所有，查找设置了
failed_at的，查找设置了locked_by的（当前正在处理）。我发现如果您先从控制台 to_yaml 它们，它们会更容易阅读：
y Delayed::Job.all。You can gain insight into your delayed_job queue through the Delayed::Job model (I think the name of it might have changed in later versions). It's just an ActiveRecord model and you can do all the things you'd do to a normal one. Find all, find ones with
failed_atset, find ones withlocked_byset (currently being worked).I find they're much easier to read if you to_yaml them first:
y Delayed::Job.allfrom console.您必须小心设置
Delayed::Job.destroy_failed_jobs = false因为默认情况下，尝试 25 次后作业将被删除。然后您可以看到哪些作业失败了（以及 failed_at 字段中的时间）。有一个耙子任务来清理它们。另一个值得关注的队列是 Resque，它附带了一个用于监控队列的小型管理应用程序。 其介绍值得一读。
You have to be careful to set
Delayed::Job.destroy_failed_jobs = falsebecause by default after 25 tries a job will be deleted. Then you can see which jobs failed (and what time in the failed_at field). There's a rake task to clean them up.Another queue to look at is Resque, which comes with a little management app to monitor queues. Its introduction is a good read.