Home » Fast Eventual Consistency: Inside Corrosion, the Distributed System Powering Fly.io

Fast Eventual Consistency: Inside Corrosion, the Distributed System Powering Fly.io

by Lila Hernandez
2 minutes read

The Power of Fast Eventual Consistency: Unveiling Corrosion by Fly.io

In the fast-paced world of cloud solutions, staying ahead means embracing innovation. Recently, at QCon London 2025, the cloud solutions expert Somtochi Onyekwere introduced a game-changer: Corrosion, the cutting-edge open-source distributed system powering Fly.io. This revolutionary system, built on CRDTs and Rust, is designed to revolutionize scalability and data synchronization, offering a solution to latency issues and ensuring swift, consistent application deployment across Fly.io’s extensive global network spanning over 40 regions.

Understanding Corrosion: The Core of Fly.io’s Distributed System

Corrosion represents a paradigm shift in distributed systems, setting a new standard for speed and consistency in application deployment. By harnessing Conflict-free Replicated Data Types (CRDTs), Corrosion enables seamless data synchronization across distributed nodes, eliminating the complexities associated with traditional consensus-based approaches. This innovative design not only enhances scalability but also ensures that data consistency is achieved without sacrificing performance.

Leveraging Rust for Reliability and Performance

At the heart of Corrosion lies Rust, a programming language renowned for its focus on safety, speed, and concurrency. By utilizing Rust, Corrosion benefits from a robust and reliable foundation, allowing developers to build and deploy applications with confidence. The combination of CRDTs and Rust in Corrosion not only streamlines the development process but also guarantees high performance and efficiency, making it an ideal choice for modern distributed systems.

Addressing Latency Challenges with Global Reach

One of the key advantages of Corrosion is its ability to address latency challenges in distributed systems. By seamlessly managing data synchronization across a vast network of over 40 regions, Corrosion ensures that applications deployed on Fly.io maintain fast and consistent performance regardless of geographical location. This global reach not only enhances user experience but also opens up new possibilities for businesses looking to scale their operations efficiently.

The Future of Distributed Systems: Corrosion and Beyond

As the demand for scalable and reliable cloud solutions continues to grow, the role of distributed systems like Corrosion becomes increasingly vital. By prioritizing fast eventual consistency and seamless data synchronization, Corrosion sets a new standard for distributed systems, paving the way for future innovations in the field. With its advanced features and global reach, Corrosion by Fly.io is poised to shape the future of cloud solutions and empower businesses to thrive in an increasingly interconnected world.

In conclusion, the unveiling of Corrosion at QCon London 2025 marks a significant milestone in the evolution of distributed systems. By combining CRDTs and Rust in a powerful open-source solution, Fly.io has demonstrated its commitment to driving innovation and excellence in cloud solutions. As we look to the future, Corrosion stands as a testament to the power of fast eventual consistency and the endless possibilities it brings to the world of distributed systems.

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