In Q3 2024, our AI/ML feature store’s p99 read latency hit 2.8 seconds as training throughput spiked to 12k features/sec, with PostgreSQL 16 struggling to break 42k IOPS under heavy read workloads. We had 6 weeks to scale to 100k IOPS or face a $1.2M annualized infrastructure bill from over-provisioned single-node instances.




📡 Hacker...