Github user tillrohrmann commented on the issue:
https://github.com/apache/flink/pull/5532
This is not possible. The problem arises when you start a session cluster
where you don't know the Flink job to submit.
Personally, I'm not a huge fan of too much auto magic which leads to
unexpected behaviour. Instead I would prefer that things fail if not properly
started (e.g. not enough slots) instead of trying to figure out the right
number of slots (which apparently breaks things). ---
