Scheduling celery tasks with large ETA

问题:

I am currently experimenting with future tasks in celery using the ETA feature and a redis broker. One of the known issues with using a redis broker has to do with the visibility timeout:

If a task isn’t acknowledged within the Visibility Timeout the task will be redelivered to another worker and executed.

This causes problems with ETA/countdown/retry tasks where the time to execute exceeds the visibility timeout; in fact if that happens it will be executed again, and again in a loop.

Some tasks that I can envision will have an ETA on the timescale of weeks/months. Setting the visibility timeout large enough to encompass these tasks is probably unwise.

Are there any paths forward for processing these tasks with a redis broker? I am aware of this question. Is changing brokers the only option?