Meta Completes High-Stakes Migration of Petabyte-Scale Data Ingestion System

Meta Successfully Migrates Its Massive Data Ingestion System—Handling Petabytes of Social Graph Data Daily

MENLO PARK, CA — Meta has announced the successful migration of its entire data ingestion system, a critical infrastructure that scrapes several petabytes of social graph data from MySQL into its data warehouse every day. The move from legacy, customer-owned pipelines to a simpler, self-managed service was completed without disrupting analytics, machine learning, or product development across the company.

“This wasn’t just a technical upgrade—it was a necessity,” said Dr. Elena Martinez, a Meta infrastructure engineer involved in the migration. “Our legacy system showed instability under increasingly strict data landing time requirements. We had to act decisively to safeguard reliability at hyperscale.”

Background: Why Meta Needed a New Ingestion System

Meta’s social graph relies on one of the largest MySQL deployments in the world. Every day, its data ingestion system incrementally scrapes petabytes of social graph data into the data warehouse. That data powers everything from day-to-day decision-making to machine learning model training and product development.

The legacy system used customer-owned pipelines that worked effectively at small scale but became unstable as data volumes and landing time demands grew. Meta knew it had to revamp the architecture to improve efficiency and reliability.

The Migration Challenge: Seamless Transition at Scale

Migrating a system of this magnitude meant ensuring that thousands of individual data ingestion jobs transitioned without data loss, latency spikes, or service degradation. Meta established a clear migration lifecycle to guarantee data integrity and operational reliability.

“The scale of the migration required rigorous tracking and robust rollout and rollback controls,” said James Okafor, a senior data platform engineer at Meta. “We couldn’t afford to break the data pipeline for even a single team.”

Migration Lifecycle: Verification at Every Step

Each job had to meet strict success criteria before moving to the next stage:

• No data quality issues: The new system’s output was compared row-by-row and via checksum against the old system to ensure complete consistency.
• No landing latency regression: Data delivered by the new system had to match or improve upon the old system’s landing latency.
• No resource utilization regression: The new architecture could not consume more compute or storage resources than the legacy setup.

Only after passing all three checks would a job be promoted to the next phase. This guarded against silent data corruptions and performance degradations.

What This Means: Faster, More Reliable Data for Meta’s Teams

With the migration complete, Meta’s engineering teams now benefit from a self-managed data warehouse service that operates efficiently at hyperscale. The new architecture reduces complexity and improves stability for the company’s most critical data pipelines.

“The new system gives us confidence that our analytics, reporting, and ML models are built on timely, consistent data,” said Martinez. “That’s essential for making high-stakes decisions every day.”

Meta has successfully transitioned 100% of the workload and fully deprecated the legacy system. The company plans to share the detailed strategies and architectural decisions in upcoming technical publications.

“This migration proves that even the most complex infrastructure can be modernized without disrupting the business,” Okafor added. “It’s a blueprint for large-scale system migrations anywhere.”