positiveSYS.SOURCE: Shopify Engineering Blog• 2026-08-08T22:32:50Z
Shopify's Transition from Redis to MySQL for Inventory Reservations at Scale
Shopify transitioned inventory reservations from Redis to MySQL, leveraging SKIP LOCKED and composite primary keys to achieve high scalability during peak traffic. The approach addressed contention issues and ensured ACID compliance by maintaining a bounded pool of inventory units.
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