Ruby startup demo – Sam Lambert

on YouTube ↗09m

" summary

PlanetScale demonstrates Vitess-based sharding for MySQL/Postgres with an actual live migration: it creates sequence tables to centralize ID generation, copies data into an 11-shard cluster (each shard having three nodes), and switches traffic with no application code changes. The demo runs inside customer AWS/GCP accounts, finishes the migration zero to sharded in less than 10 minutes, and claims the resulting cluster serves millions of QPS with transparent joins by colocating posts and comments on the same shards.

AI-written summary · about

" chapters (5)

1. 0:00Introduction to PlanetScale
2. 1:32The case for sharding
3. 2:27Demo setup and configuration
4. 4:20Live database migration
5. 7:24Finalizing the shift to scale

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