Book Image

Machine Learning with the Elastic Stack - Second Edition

By : Rich Collier, Camilla Montonen, Bahaaldine Azarmi
5 (1)
Book Image

Machine Learning with the Elastic Stack - Second Edition

5 (1)
By: Rich Collier, Camilla Montonen, Bahaaldine Azarmi

Overview of this book

Elastic Stack, previously known as the ELK stack, is a log analysis solution that helps users ingest, process, and analyze search data effectively. With the addition of machine learning, a key commercial feature, the Elastic Stack makes this process even more efficient. This updated second edition of Machine Learning with the Elastic Stack provides a comprehensive overview of Elastic Stack's machine learning features for both time series data analysis as well as for classification, regression, and outlier detection. The book starts by explaining machine learning concepts in an intuitive way. You'll then perform time series analysis on different types of data, such as log files, network flows, application metrics, and financial data. As you progress through the chapters, you'll deploy machine learning within Elastic Stack for logging, security, and metrics. Finally, you'll discover how data frame analysis opens up a whole new set of use cases that machine learning can help you with. By the end of this Elastic Stack book, you'll have hands-on machine learning and Elastic Stack experience, along with the knowledge you need to incorporate machine learning in your distributed search and data analysis platform.
Table of Contents (19 chapters)
1
Section 1 – Getting Started with Machine Learning with Elastic Stack
4
Section 2 – Time Series Analysis – Anomaly Detection and Forecasting
11
Section 3 – Data Frame Analysis

Creating an alert with a watch

Prior to version 7.12, Watcher was used as the mechanism to alert on anomalies found by Elastic ML. Watcher is a very flexible native plugin for Elasticsearch that can handle a number of automation tasks and alerting is certainly one of them. In versions 7.11 and earlier, users could either create their own watch (an instance of an automation task in Watcher) from scratch to alert on anomaly detection job results or opt to use a default watch template that was created for them by the Elastic ML UI. We will first look at the default watch that was provided and then will discuss some ideas around custom watches.

Understanding the anatomy of the legacy default ML watch

Now that alerting on anomaly detection jobs is handled by the new Kibana alerting framework, the legacy watch default template (plus a few other examples) are memorialized in a GitHub repository here: https://github.com/elastic/examples/tree/master/Alerting/Sample%20Watches/ml_examples...