Shop app horizontally scaled a Ruby on Rails app with Vitess. This blog describes Vitess and our detailed approach for introducing Vitess to a Rails app.

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Shopify Engineering

The post discusses the process of horizontally scaling the Rails backend of the Shop app using Vitess. It covers the challenges faced, the benefits of using Vitess, and the steps involved in the migration.

Horizontally scaling the Rails backend of Shop app with Vitess

Phase 2: Splitting into multiple keyspaces

Phase 3: Sharding the “Users” keyspace.