Markus Binsteiner

09/21/2019, 8:17 AM
Quick question about scheduling: is there a way to gracefully cancel a running (infinite) flow that uses a schedule? Also, I need to manage several of them in my application, so I plan to write some sort of management class for runs. Except, maybe something like this already exists, does anybody know?


09/21/2019, 6:06 PM
Depending on your executor, this might be easier or harder to achieve. To cancel the running flow, simply kill the process — however, to do so gracefully, you’ll want to make sure the tasks are running in a different process. The DaskExecutor would work — in that case, the “controller” process would die, but the already-submitted tasks would continue running for at least one more pass through the flow.
An alternative would be to modify the
function to respect a global variable, perhaps something from a queue or elsewhere in your application. That way you could set a flag and exit the loop when required. (This is just off the top of my head, would require a little looking to confirm)

Markus Binsteiner

09/22/2019, 10:17 AM
Thanks. I'll have a look at the run() function and see how that works. This sounds like the cleaner solution...