如何从 Perl CGI 应用程序安排一次性任务？
我正在编写一个应用程序，允许用户从 Web 应用程序 (Linux/Apache/CGI::Application) 安排一次性长时间运行的任务。 为此，我使用 时间表::At 模块，它是“at”命令的 Perl 接口。 由于计划任务不重复，因此我不考虑“cron”。 不过，我对“at”有两个问题：
- 当我的 CGI 应用程序在 suexec 包装器下运行时，调度工作正常，但当由 Apache 进程的所有者调度时则不然。 如何让调度在两种环境（suexec 和 no-suexec）中工作？
- 似乎由“at”或 Schedule::At 调度的进程没有故障报告，而且我有时发现调度的任务会默默地失败。 有没有某种方法可以记录计划任务（而不是调度程序本身）运行失败的事实？
我并不固定在“at”上，并且愿意使用其他更强大的调度方法（如果有的话）。
感谢您的关注。
I am writing an application to allow users to schedule one-time long-running tasks from a web application (Linux/Apache/CGI::Application). To do this I use the Schedule::At module which is the Perl interface to the "at" command. Since the scheduled tasks are not repeating, I am not considering "cron". I have two issues with "at" though:
- Scheduling works fine when my CGI application runs under the suexec wrapper, but not when scheduled by the owner of the Apache process. How can I get scheduling to work in both environments (suexec and no-suexec)?
- It appears that the processes scheduled by "at" or Schedule::At have no failure reporting, and I sometimes find that scheduled tasks fail silently. Is there some way to log the fact that the scheduled task (not the scheduler itself) has failed to run?
I am not fixed on "at" and am open to using other, more robust, scheduling methods if there are any.
Thank you for your attention.
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我听说过关于 The Schwartz 的好消息。 但它没有延迟，直到； 您可以通过 at 提交作业，但这应该可以解决上面列出的两个问题，只要您的 Submit_job 脚本很简单。
（作为警告，我只使用了 Gearman，我想你会想要一个可靠的作业队列，一个“即发即忘”机制，这样你就可以让你的submit_job保持沉默。）
I've heard good things about The Schwartz . It doesn't have a delay-until though; you'd submit the jobs via at, but that should solve both of the problems you list above, as long as your submit_job script was simple.
(as a caveat, I've only used Gearman, I think you'd want a reliable job queue for this, a "fire and forget" mechanism, so you can keep your submit_job dumb.)