Hacker News Reader

I agree, but I have a feeling this isn't a small fix. Sounds like someone picked a mechanism that seemed to be equivalent but is not. Swapping that will require a lot of time and testing.

> Swapping that will require a lot of time and testing.

Lucky them, there is an automated suite[1] to verify the correct behavior :-D

1: https://github.com/jepsen-io/rds

there is no trivial fix for this without breaking performance. roughly, there is no free lunch in distributed systems, and AWS made a tradeoff to relax consistency guarantees for that specific setup, and didn't really advertise that

It looks like a bug, but the problem is the documentation does not detail what guarantees are offered in this scenario, but would love if somebody could point me where it does...

Yet bellow your comment is a quote that this is since v13 and above is a comment that there is no mention in the docs.

Using the words Bug and guarantee is throwing the casual readers off the mark ?