Cosmos DB and Global Distribution
Azure's globally distributed database — multi-model, multi-region, and when you actually need it.
Most databases live in one place. Your Postgres instance runs in us-east-1, and every query from Tokyo, London, and Sydney has to cross the ocean to get there. For most applications, that's fine. A 200ms round trip to the database is invisible inside a server-side rendered page.
But some applications genuinely need data to be close to users everywhere. A gaming leaderboard. A global IoT platform. A financial system that must comply with data residency laws across continents. For these cases, Azure Cosmos DB offers something unique: turnkey global distribution with guaranteed single-digit millisecond latency anywhere on Earth.
The question isn't whether Cosmos DB is impressive — it is. The question is whether you actually need it, because the complexity and cost are significant.
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