How can I submit a Flow B for immediate execution when Flow A is finished? And this should be non blocking, that is, just calling

flow_b_method()

as the last statement in Flow A is blocking. Can I use a state handler like

on_completion=[flow_b_method]

as part of Flow A's definition? But using state change hooks cannot consume parameters for Flow B. Using

**kwargs

in the hook method somehow?

do flow A and flow B have separate dependencies or require separate hardware? if not, you can write them as subflows where a parent flow calls flow A, then flow B

No, they just have to run in order. First Flow A and then Flow B. Currently we just call Flow B's method as mentioned above. But it would be nice to start Flow B without Flow A waiting for B

are these separate deployments?

When A is blocking, waiting for B, we cannot set sensible timeouts for A

Based on your description it sounds like you want A and B to be separate deployments, so you can run them in order but also run them independently of each other.

Okay, then I ask the Prefect API, retrieve the B-Deployment and call

run_deployment()

with a rather small timeout (0 seconds or so) and check the return of that method to get the state? when the state is SCHEDULED or RUNNING everything is fine?

Yep,

run_deployment

with a timeout of 0 is non-blocking

What is the return type of

run_deployment

? https://docs.prefect.io/latest/api-ref/prefect/deployments/deployments/#prefect.deployments.deployments.run_deployment doesnt tell and the code neither 😕

yep!

Thank you very much, @Kevin Grismore