Meta Engineering 20260512 Migrating Data Ingestion Systems at Meta Scale Summary
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What happened
Meta Engineering’s official engineering blog published Migrating Data Ingestion Systems at Meta Scale, a May 12, 2026 post about replacing the data-ingestion architecture that moves social graph data from one of the world’s largest MySQL deployments into Meta’s data warehouse.
The post is interesting because it treats migration as a production-systems problem rather than a one-time cutover. Meta’s ingestion system incrementally scrapes several petabytes of social graph data from MySQL every day and feeds analytics, reporting, machine learning training data, and downstream product workflows. The legacy architecture had been customer-owned pipeline heavy: workable when the system was smaller, but increasingly unstable as scale grew and data landing deadlines tightened. The new architecture moves that responsibility into a simpler self-managed warehouse service, but the hard part was not only building the new path. It was moving 100% of the existing workload without corrupting data, increasing latency, overrunning capacity, or leaving consumers to discover defects.
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