Introducing Meerkat: an experiment in global consensus

Cloudflare is developing a new distributed consensus service called Meerkat, powered by the QuePaxa algorithm, to address the challenges of maintaining strong consistency and high availability across its global network of data centers. Unlike traditional consensus algorithms like Raft, which rely on a single leader and can suffer from availability issues during leader failures or network delays, QuePaxa allows all replicas to perform writes independently, avoiding the single point of failure. Meerkat is designed to handle control-plane data, ensuring linearizability and fault tolerance even in less stable network conditions, making it ideal for Cloudflare's needs. The system is currently experimental and internal, but Cloudflare plans to release more information about its development and potential applications in future blog posts.

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