FYI - for anyone running across this thread later. This is a unique problem with (a kind of globally) consistent storage on small (single node equivalent) systems. If you have a large scale distributed system, you WANT writes to be well distributed across all nodes, or you’ll end up with problematic hot spots.

All new writes ending up on the same node/page/index is a good way to crush your system in a cascading-never-coming-back-up-until-you-drain-traffic-kind-of-way