We currently have the supervisor.worker.shutdown.sleep.secs parameter allowing users to specify how long the supervisor should wait between starting the initial graceful shutdown of a worker, and sending the followup force kill.
When workers are asked to shut down gracefully, they run a shutdown hook that allows 1 second of cleanup, before force halting the JVM. I think it would be good to make the delay between starting the shutdown hook and halting the JVM follow the same config as in the supervisor.
I don't see why it is useful to specify the force kill delay in the supervisor, if the worker just suicides after one second anyway. Letting the user configure how long shutdown is allowed to take lets them make use of the bolt's cleanup method for cleaning up resources in non-crash scenarios.