The learning curve I've experienced with Elixir, after working previously with managed services, in handling the above-mentioned tasks while managing state in the BEAM cluster. Patches are scaling are straightforward if you can restart instances and assume they can pick up what was interrupted before, but hot-reloading or managing state between nodes in a rolling update with give you overhead as you get set up.

What it works really great for if you don't want to do the up front investment in managing a stateful cluster, is doing multi-step or fan-out processing. BEAM/OTP really shines when it's helpful to have individual processing steps coordinated but isolated, but where if a job needs to cancel and rerun (interrupted by a node restart or OOM), it's not an issue.

This is great resource https://www.erlang-in-anger.com/