Introduction to Azure DocumentDB
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This document provides an introduction to Microsoft Azure DocumentDB. It discusses how DocumentDB is a non-relational or NoSQL database that stores data in JSON documents. It also overview how DocumentDB provides scalability, high availability, and fast performance for large document workloads. Key features of DocumentDB discussed include its resource and interaction models, indexing, consistency options, querying capabilities, and support for JavaScript transactions.
Introduction to Azure DocumentDB
- 3. Introduction to Microsoft Azure DocumentDB Radenko Zec - Lanaco
- 5. Agenda • NoSQL • Introduction to Azure DocumentDB • Storing data • Querying data • Transactions over data
- 6. No SQL in Database what ???
- 7. Is DocumentDB NoSQL database? • database management system that is non relational • schema less, avoids joins & easy to scale • NoSQL =
- 8. DocumentDB at MSN.com • over 425 million unique users • store 20TB of JSON document data • available globally to serve all markets • under 15ms writes and single digit ms reads
- 10. Resource Model • Entities addressable by logical URI • Partitioned for scale out • Replicated for HA • Entities represented as JSON • Accounts scale out through addition of capacity units Interaction Model • RESTful interaction over HTTP • HTTP and TCP connectivity
- 11. Attachments • Store large blobs/media outside core storage • Document DB managed – Submit raw content in POST – Document DB stores into Azure Blob storage (2GB today) – Document DB manages lifecycle
- 12. DEMO - Getting Started
- 13. Indexing in DocumentDB • By default everything is indexed • Indexing is not a B-Tree (based on BWTree used in Hackaton) and works really well under write pressure and at scale
- 16. Tunning indexes • synchronous (Consistent) • asynchronous (Lazy)
- 17. Sharding
- 18. Multi Document JavaScript Transactions • Execution wrapped in an implicit transaction • Preregistered and scoped to a collection • Performed with ACID guarantees • If exceptions are thrown through the server side execution of JavaScript application code, the entire transaction is rolled back.
- 19. DEMO – Queries, CRUD, Stored Procedures
- 20. Known limits • Stored procedure 5 second execution timeout • Index policies can be specified only at collection creation time • no aggregate functions for now, no datetime type • no joins between documents and collections • Maximum request size of document and attachment 512KB • Maximum response size - 1MB • Maximum Request Units / sec per collection 2000 etc…
- 21. The End • Radenko Zec – Lanaco • http://blog.developers.ba • @radenkozec
- 23. Ne zaboravite ispuniti upitnike. Čekaju vas vrijedne nagrade!