I'm trying to get my head around the impact of setting max parallelism. * Does max parallelism primarily serve as a reservation for future increases to parallelism? The reservation being the ability to restore from checkpoints and savepoints after increases to parallelism.
* Does it serve as a runtime suggestion for how many instances of an operator the job could spin up? Or is it just a reservation like I asked above? * It also appears to impact the distribution of key groups among subtasks from what I've read and seen from testing. Is that understanding correct? * What are the other important implications? Thank you, Aeden
