Azure Cosmos DB Reference¶

Comparative positioning note

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Home > Reference > Cosmos DB

Reference documentation for Azure Cosmos DB configuration, global distribution, consistency models, and integration with cloud-scale analytics workloads.

Available References¶

Global Distribution¶

Global Distribution - Comprehensive guide to Azure Cosmos DB global distribution, multi-region writes, consistency levels, and disaster recovery strategies.

Overview¶

Azure Cosmos DB is a globally distributed, multi-model database service designed for mission-critical applications requiring:

Global distribution with multi-region writes
Single-digit millisecond latency
Five consistency levels
Comprehensive SLAs for availability, throughput, latency, and consistency
Support for multiple data models (SQL, MongoDB, Cassandra, Gremlin, Table)

Integration with Analytics Workloads¶

Azure Synapse Link for Cosmos DB¶

Azure Synapse Link enables near real-time analytics over operational data in Cosmos DB without ETL.

Key Features¶

Feature	Description
No ETL	Automatic sync to analytical store
Performance Isolation	Analytics don't impact transactional workload
Real-time Insights	Query operational data with low latency
Cost Optimization	Columnar storage for analytics queries

Configuration Example¶

# Enable Synapse Link on Cosmos DB account
az cosmosdb update \
  --name cosmos-analytics-prod \
  --resource-group rg-analytics-prod \
  --enable-analytical-storage true

# Create container with analytical store
az cosmosdb sql container create \
  --account-name cosmos-analytics-prod \
  --database-name analytics-db \
  --name events \
  --partition-key-path "/tenantId" \
  --analytical-storage-ttl -1

Common Use Cases¶

Analytics Workloads¶

Real-time Analytics - Query operational data without impacting production
IoT Data Processing - Ingest and analyze sensor data globally
Event Sourcing - Store and query event streams
Time Series Data - Store and analyze time-stamped data
Reference Data - Globally distributed lookup tables

Integration Scenarios¶

Synapse Analytics - Query Cosmos DB data using Synapse Link
Azure Data Factory - ETL from/to Cosmos DB
Azure Functions - Trigger on Cosmos DB changes
Azure Stream Analytics - Output streaming data to Cosmos DB

Quick Links¶

Note: This reference section focuses on Cosmos DB features relevant to cloud-scale analytics workloads. For complete Cosmos DB documentation, refer to the official Microsoft documentation.