DynamoDB’s Best Feature: Predictability
Looks like I didn’t bookmark this one? Marc Brooker on how DynamoDB use redundant, additional requests to their MemDS caching service in order to avoid surprising variability in service performance which could affect service availability. Good example of the “constant work” pattern described by colmmacc at https://aws.amazon.com/builders-library/reliability-and-constant-work/ .
(tags: reliability availability dynamodb memds caches caching architecture predictability constant-work)