Hello! Quick question. The Schedules doc say:

Prefect does not support sub-minute schedules.

Is this a hard limit? I have the need to run a Prefect Flow secondly for a minute (and then stop). 🙏

Hi Matt! This is currently a hard limit; assuming your Flow isn’t very complicated, you might be able to achieve your same goal with Task Looping: https://docs.prefect.io/core/tutorials/task-looping.html

Okay, Chris, that will work. Thank you so much. Love what you all are doing with Prefect.

Anytime - thanks Matt!

@Matt Harvey we enforce that limit because it’s a reasonable limit when people move into distributed environments where there can be non-trivial spinup times, so higher frequencies can cause backups. You could in theory go remove it in your own code with a custom scheduler and I think it would work as expected… though we wouldn’t officially support it 😉

@Jeremiah I appreciate the additional context. That makes sense. I think for my use case, what I'll end up doing is triggering by minute, and then in the first task (which is what really requires the secondly operation), implement a Task Loop that can exit out of there once it has what it needs, and then since that Task will be complete, the rest of the flow will run.

Sounds good and give us a shout to let us know how it goes! We want to explore higher frequencies, just in a conservative way for users!