Are those Prefect tasks or external events?

On a related note, if I take a successful flow and mark two tasks as failed, then restart the flow run, it doesn’t execute those two failed tasks. It just changes the flow back to Success.

Am going a while back and I don’t see a

start_tasks

parameter. I joined Prefect around 0.14.12 and nothing like that rings a bell

So I have a flow like this:

from prefect import Flow, task
import prefect

@task
def abc():
     <http://prefect.context.logger.info|prefect.context.logger.info>("I RAN")
     return 1

@task
def bcd():
     <http://prefect.context.logger.info|prefect.context.logger.info>("I RAN")
     return 1

@task
def cde():
     <http://prefect.context.logger.info|prefect.context.logger.info>("I RAN")
     return 1

with Flow("resukt") as flow:
     abc()
     bcd()
     cde()

and I ran it and it succeeded. Marked

bcd

and

cde

as failed. Restarted on the flow run page and it kicked off again. Images of logs below. One shows the restart and one shows the re-run.

Did not have to mark the Flow as failed. When you say it doesn’t run, is it changed to a scheduled state or left in a Failed state?

I can still restart the same way yep

Restarting just the middle task works also (restarting on flow level)

Interesting

So in A->B->C if I mark b as failed. I can restart from B but not from A. I think instead of A, you’d have to restart from the Flow

I can restart from A but not B

The flow goes straight to a success state and doesn’t run any tasks

I am setting the task to failed and then restarting the flow run (from the flow run page)

This is with a Kubernetes run

What happens is that the failed task (B) transitions to a pending state, but never actually runs and the flow transitions to a success state

3 tests. A->B->C I marked B as failed. 1. Re-run from A - nothing happens 2. Re-run from B - B runs and completes 3. Re-run from Flow - B runs and completes Is the intent here to re-run a section of a Flow? I really think the Flow-of-flows might serve you better if you’re seeing different behavior

your*

I talked to Bianca and went over this thread to give more context. She’ll handle and get resources to work through this with you.