Book Image

Guide to NoSQL with Azure Cosmos DB

By : Gaston C. Hillar, Daron Yöndem
Book Image

Guide to NoSQL with Azure Cosmos DB

By: Gaston C. Hillar, Daron Yöndem

Overview of this book

Cosmos DB is a NoSQL database service included in Azure that is continuously adding new features and has quickly become one of the most innovative services found in Azure, targeting mission-critical applications at a global scale. This book starts off by showing you the main features of Cosmos DB, their supported NoSQL data models and the foundations of its scalable and distributed architecture. You will learn to work with the latest available tools that simplify your tasks with Cosmos DB and reduce development costs, such as the Data Explorer in the Azure portal, Microsoft Azure Storage Explorer, and the Cosmos DB Emulator. Next, move on to working with databases and document collections. We will use the tools to run schema agnostic queries against collections with the Cosmos DB SQL dialect and understand their results. Then, we will create a first version of an application that uses the latest .NET Core SDK to interact with Cosmos DB. Next, we will create a second version of the application that will take advantage of important features that the combination of C# and the .NET Core SDK provides, such as POCOs and LINQ queries. By the end of the book, you will be able to build an application that works with a Cosmos DB NoSQL document database with C#, the .NET Core SDK, LINQ, and JSON.
Table of Contents (13 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Chapter 6. Tuning and Managing Scalability with Cosmos DB

In this chapter, we will analyze many aspects that allow us to design and maintain scalable architectures with Cosmos DB. We will use our sample application to understand how many important things work, but we will also work with other examples to understand complex topics related to scalability.

In this chapter, we will do the following:

  • Understand request units and how they affect billing
  • Dynamically adjust throughput for a collection with the Azure portal
  • Work with client-side throughput management
  • Understand rate limiting and throttling
  • Track consumed request units with client-side code
  • Understand the options for provisioning request units
  • Learn partitioning strategies
  • Deploy to multiple regions
  • Understand the five consistency levels
  • Take advantage of regional failover
  • Understand indexing in Cosmos DB
  • Check indexing policies for a collection with the Azure portal