CockroachDB is a distributed SQL database designed for global scalability and resilience. The database achieves this through a unique architecture built on a monolithic key-value store, Raft-based replication, and hybrid logical clocks. Transaction management is optimized for global workloads using a non-blocking commit protocol and multi-region capabilities. CockroachDB offers declarative data locality, enabling administrators to define data placement policies for performance and compliance. Performance optimization strategies, like follower reads and elastic scaling, help reduce latency and costs. Despite its strengths, challenges remain around write amplification and tradeoffs associated with global tables, but future development focuses on serverless architecture and AI-driven autotuning.https://www.perplexity.ai/page/cockroachdb-sql-for-global-sca-8wVC7NgaQAup2iEyCWw8Fw

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