CosmosDB is Microsoft's multi-model database that can be accessed using multiple APIs and provides options for consistency and geographic distribution of data across regions. It supports document, key-value, graph and table-based data models and can be accessed via SQL, MongoDB, Cassandra, Azure table and Gremlin APIs. Data can be distributed globally across regions while maintaining various levels of consistency including strong, bounded staleness, session, or eventual.

1. Star Stuff: CosmosDb for
Beginners
Phil Pursglove
@philpursglove

2. CosmosDb
• Announced at Build 2017
• Superset of DocumentDb
• The Multi database!
• Multi-model
• Multi-API
• Multi-consistency
• Multi-region

3. CosmosDb – Multi-Model
• CosmosDb can be a…
• Document database
• MongoDb compatible
• Key-Value store
• Table store
• Graph database

4. CosmosDb – Multi-API
• Data in CosmosDb can be accessed using…
• DocumentDb API
• MongoDb (bug-compatible)
• Azure table storage API
• Gremlin
• For graph db’s
• SQL

5. CosmosDb – Multi-Consistency
• A CosmosDb database can have…
• Strong e.g. ACID
• Bounded Staleness
• Session (default)
• Consistent Prefix
• Eventual
• … consistency
• You can override the consistency on a per-request basis
Consistency
Availability

6. CosmosDb – Multi-Region
• CosmosDb data can be located …
• In a single region
• (For strong consistency you have to have this)
• Globally
• (Any other consistency model)
• Data is read from the nearest data centre to the requester
• Failover
• Automatic
• Manual

7. CosmosDb – Use cases
• Distributed cache
• Object cache
• Output cache
• Azure functions
• Bot framework state data

8. CosmosDb - Summary
• Multi-model
• Multi-API
• Multi-consistency
• Multi-region
• Try it FOR FREE
• http://tinyurl.com/trycosmosdbforfree

9. Resources
• CosmosDb emulator – tinyurl.com/cosmosdbemulator
• Windows 10 only
• Dot Net Conf - tinyurl.com/cosmosdbdotnetconf
• Samples - http://tinyurl.com/cosmosdbsamples
• @azurecosmosdb