ReferenceIncidents
Era 2 · SeedStale reads
A Cache served values past their TTL: a write-heavy table outran its invalidation, and reads of the same rows came back old.
What happens#
A Cache served values past their TTL: a write-heavy table outran its invalidation, and reads of the same rows came back old.
How to prevent it#
A shorter TTL, a Cache that writes through, or read-your-writes routing.
The postmortem opens the first of these that you do not own yet: