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Azure Cosmos DB Reference

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Status Documentation

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 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

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.