build1 distinct publisher
Mercari's TiDB gains came from storage knobs, while plan caching went back off
Region split size cut region count about 10% and TiKV CPU up to 20%, and the In Memory Engine took 0.5-1.5s queries to roughly 0.1s. Plan cache now runs on one cluster.
Publishers:engineering.mercari.com
Reality
- Evidence60
- Adoption55
- Hype gap−10
- Incentives40
- Confidence62