Azure's globally distributed, multi-model database — partition keys, RU/s, and consistency levels.
Five passes over the same idea, each from a different angle. Do them in order, or jump to whichever you need.
Azure Cosmos DB provides global distribution with five consistency levels (Strong → Eventual). Supports multiple APIs: NoSQL, MongoDB, Cassandra, Gremlin, Table. Key concepts: partition key design, Request Units (RU/s), cross-partition queries, change feed, and hierarchical partition keys.
Where this topic shows up outside its home domain:
