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Introduction to azure cosmos db
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Introduction of Azure cosmos DB and common use cases architecture overview
Ratan ParaiFollow
Senior Software Engineer at Secure Link Services Ltd
Introduction to azure cosmos db
- Introduction to Azure Cosmos DB Ratan Sunder Parai @ratanparai github.com/ratanparai ratanparai.com
- Azure Cosmos DB is Microsoft's globally distributed, multi-model database service
- Multi-model database? • Core (SQL) API • Cassandra API • MongoDB API • Gremlin (graph) API • Azure Table API
- Entities Overview
- Example item { "id": "2b9f351e-323a-4d10-8162-e388846b8e8b", "Name": "Ratan Sunder Parai", "City": “Dhaka", "_rid": "oZIeALjgLoIBAAAAAAAAAA==", "_self": "dbs/oZIeAA==/colls/oZIeALjgLoI=/docs/oZIeALjgLoIBAAAAAAAAAA==/", "_etag": ""06009837-0000-0d00-0000-5dde44720000"", "_attachments": "attachments/", "_ts": 1574847602 }
- Partitioning
- Azure Cosmos DB use cases
- IoT and telematics
- Retail and marketing
- Event Sourcing
- Gaming
- Personalization
- What about Backups?
- Automatic and online backups • Backup database every 4 hours • Latest 2 backups are stored • Doesn’t affect performance or availability
- Hmm… So how Can I restore? Contact Azure support within 8 hours
- But I want to manage my own backup 🤔 Yes you can!
- Manage your own backups • Azure Data Factory to move data periodically to a storage of your choice • Use Azure Cosmos DB change feed to read data periodically for full backups, as well as for incremental changes, and store it in your own storage.
- There is more! Azure DocumentDB Data Migration Tool
- Import data to Azure CosmosDB SQL API and Table API from - • Azure Tables • JSON files • MongoDB • SQL Server • CSV files • RavenDB • Amazon DynamoDB • HBase • Azure Cosmos DB SQL API (DocumentDB)
- I don’t have azure account, can I try CosmosDB? Yes 😍 !!! Cosmos DB Emulator
Editor's Notes
- supports millisecond reads and writes to help avoid any lags during game play. Traffic Manager uses DNS to direct client requests to the most appropriate service endpoint based on a traffic-routing method and the health of the endpoints
- Azure Cosmos DB automatically takes a backup of your database every 4 hours and at any point of time, only the latest 2 backups are stored. However, if the container or database is deleted, Azure Cosmos DB retains the existing snapshots of a given container or database for 30 days. Azure Blob storage without affecting the performance or availability of your application If you have accidentally deleted or corrupted your data, you should contact Azure support within 8 hours so that the Azure Cosmos DB team can help you restore the data from the backups. Use Azure Data Factory to move data periodically to a storage of your choice. Use Azure Cosmos DB change feed to read data periodically for full backups, as well as for incremental changes, and store it in your own storage.