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Shopify handles its petabyte-scale MySQL database using innovative techniques to ensure zero downtime, maintain read consistency, and implement efficient backup and restore processes. Shard balancing is used to distribute traffic loads efficiently across database instances. Ghostferry, an in-house tool, assists in database migration with minimal disruption. Data replication is managed to minimize lag, ensuring time-sensitive reads are accurate. Finally, Shopify leverages Google Cloud Platform's persistent disk snapshots for fast and reliable database backups and restores.

How Shopify Manages its Petabyte Scale MySQL Database

Read Consistency with Database Replication

<p>I can attest to the power of leveraging disk snapshots for backups - we implemented a similar strategy in our own infrastructure and it’s been a game-changer for reducing RTO and improving overall resilience 🚀</p>
