Book Image

Learning Elastic Stack 7.0 - Second Edition

By : Pranav Shukla, Sharath Kumar M N
Book Image

Learning Elastic Stack 7.0 - Second Edition

By: Pranav Shukla, Sharath Kumar M N

Overview of this book

The Elastic Stack is a powerful combination of tools that help in performing distributed search, analytics, logging, and visualization of data. Elastic Stack 7.0 encompasses new features and capabilities that will enable you to find unique insights into analytics using these techniques. This book will give you a fundamental understanding of what the stack is all about, and guide you in using it efficiently to build powerful real-time data processing applications. The first few sections of the book will help you understand how to set up the stack by installing tools and exploring their basic configurations. You’ll then get up to speed with using Elasticsearch for distributed search and analytics, Logstash for logging, and Kibana for data visualization. As you work through the book, you will discover the technique of creating custom plugins using Kibana and Beats. This is followed by coverage of the Elastic X-Pack, a useful extension for effective security and monitoring. You’ll also find helpful tips on how to use Elastic Cloud and deploy Elastic Stack in production environments. By the end of this book, you’ll be well-versed with fundamental Elastic Stack functionalities and the role of each component in the stack to solve different data processing problems.
Table of Contents (17 chapters)
Free Chapter
1
Section 1: Introduction to Elastic Stack and Elasticsearch
4
Section 2: Analytics and Visualizing Data
10
Section 3: Elastic Stack Extensions
12
Section 4: Production and Server Infrastructure

Pipeline aggregations

Pipeline aggregations, as their name suggests, allow you to aggregate over the results of another aggregation. They let you pipe the results of an aggregation as input to another aggregation. Pipeline aggregations are a relatively new feature, and they are still experimental. At a high level, there are two types of pipeline aggregation:

  • Parent pipeline aggregations have the pipeline aggregation nested inside other aggregations
  • Sibling pipeline aggregations have the pipeline aggregation as the sibling of the original aggregation from which pipelining is done

Let's look at how the pipeline aggregations work by considering one example of cumulative sum aggregation, which is a parent of pipeline aggregation.

Calculating the cumulative sum of usage over time...