Book Image

Scalable Data Analytics with Azure Data Explorer

By : Jason Myerscough
Book Image

Scalable Data Analytics with Azure Data Explorer

By: Jason Myerscough

Overview of this book

Azure Data Explorer (ADX) enables developers and data scientists to make data-driven business decisions. This book will help you rapidly explore and query your data at scale and secure your ADX clusters. The book begins by introducing you to ADX, its architecture, core features, and benefits. You'll learn how to securely deploy ADX instances and navigate through the ADX Web UI, cover data ingestion, and discover how to query and visualize your data using the powerful Kusto Query Language (KQL). Next, you'll get to grips with KQL operators and functions to efficiently query and explore your data, as well as perform time series analysis and search for anomalies and trends in your data. As you progress through the chapters, you'll explore advanced ADX topics, including deploying your ADX instances using Infrastructure as Code (IaC). The book also shows you how to manage your cluster performance and monthly ADX costs by handling cluster scaling and data retention periods. Finally, you'll understand how to secure your ADX environment by restricting access with best practices for improving your KQL query performance. By the end of this Azure book, you'll be able to securely deploy your own ADX instance, ingest data from multiple sources, rapidly query your data, and produce reports with KQL and Power BI.
Table of Contents (18 chapters)
Section 1: Introduction to Azure Data Explorer
Section 2: Querying and Visualizing Your Data
Section 3: Advanced Azure Data Explorer Topics

Filtering traffic with NSGs

When we deployed the ADX cluster, the deployment also updated our route table and NSG. The route table was updated to route specific cluster traffic to the internet, as shown in the following screenshot:

Figure 10.21 – User-defined routing

These routes ensure our cluster can still communicate with Azure Monitor and ADX cluster management.

In the next section, we will learn what they are, how they work, and why we should use them. Once we understand the theory, we will update our NSG by adding a new security rule to allow traffic to our ADX cluster.

Introducing NSGs

Before we add any security rules to our NSG, let's spend some time discussing what they are, how they work, and why we should use them.

NSGs are one of the fundamental security-related building blocks in Azure. NSGs allow us to filter both inbound and outbound traffic in an Azure Virtual Network. NSGs can be assigned to subnets and Network...