Book Image

Monitoring Elasticsearch

By : Dan Noble, Pulkit Agrawal, Mahmoud Lababidi
Book Image

Monitoring Elasticsearch

By: Dan Noble, Pulkit Agrawal, Mahmoud Lababidi

Overview of this book

ElasticSearch is a distributed search server similar to Apache Solr with a focus on large datasets, a schema-less setup, and high availability. This schema-free architecture allows ElasticSearch to index and search unstructured content, making it perfectly suited for both small projects and large big data warehouses with petabytes of unstructured data. This book is your toolkit to teach you how to keep your cluster in good health, and show you how to diagnose and treat unexpected issues along the way. You will start by getting introduced to ElasticSearch, and look at some common performance issues that pop up when using the system. You will then see how to install and configure ElasticSearch and the ElasticSearch monitoring plugins. Then, you will proceed to install and use the Marvel dashboard to monitor ElasticSearch. You will find out how to troubleshoot some of the common performance and reliability issues that come up when using ElasticSearch. Finally, you will analyze your cluster’s historical performance, and get to know how to get to the bottom of and recover from system failures. This book will guide you through several monitoring tools, and utilizes real-world cases and dilemmas faced when using ElasticSearch, showing you how to solve them simply, quickly, and cleanly.
Table of Contents (15 chapters)
Monitoring Elasticsearch
About the Author
About the Reviewers

Elasticsearch 5 overview

Elasticsearch 5 will follow Elasticsearch 2 as the next major software release. Although this may be chronologically jarring, purposefully jumped from version 2 to 5 to better synchronize the updated version of Elasticsearch with several other products, including Kibana, Logstash, Marvel (called Monitoring in 5.0), and more. This update will help ensure that all software running on a cluster is both compatible and up-to-date.

There are hundreds of new changes being introduced in version 5, but a few relevant highlights include:

  • Compatibility between the Elasticsearch 2 API and Elasticsearch 5

  • Indices from Elasticsearch 2 can be migrated to version 5:

    • Indices from Elasticsearch 1 must first be migrated to version 2 before migrating them to version 5

  • Marvel is renamed Monitoring

  • The Elasticsearch-Logstash-Kibana stack is renamed the Elastic Stack

  • The plugin API no longer supports site plugins, including plugins such as Elasticsearch-head...