description CosmosDB Overview
Azure Cosmos DB is a globally distributed, multi-model database service from Microsoft. It offers unparalleled scalability and performance, supporting various data models including SQL, MongoDB, Cassandra, Gremlin, and Table. Its serverless architecture simplifies operations and reduces infrastructure costs. It's a strong choice for applications requiring low latency and high availability across multiple regions.
help CosmosDB FAQ
Which data models and APIs does Azure Cosmos DB support?
Azure Cosmos DB supports APIs for NoSQL, MongoDB, Cassandra, Gremlin, and Table workloads. The right API depends on the application’s existing data model and query requirements.
How does partitioning affect Cosmos DB performance?
Cosmos DB distributes data and throughput across logical partitions using a partition key. A poor key can create a hot partition, while a high-cardinality key can spread requests more evenly.
Can Azure Cosmos DB run without a continuously provisioned database server?
Yes. Its serverless capacity mode bills for request usage rather than requiring continuously provisioned throughput, which suits intermittent workloads. Microsoft Azure still manages the underlying infrastructure.
How is Cosmos DB different from Amazon DynamoDB?
Both are managed, scalable cloud databases, but Cosmos DB offers multiple APIs and configurable consistency levels within Azure. DynamoDB is centered on AWS-native key-value and document workloads, so cloud platform and access patterns are major deciding factors.
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