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

Understanding your cluster

Elasticsearch has many different moving parts, and it can get a little complicated to ensure that everything runs properly. Fortunately, there are some great open source monitoring tools that are available to help you keep tabs on your cluster. This section will cover how to install some of the most popular and useful monitoring tools on your cluster, and the following two chapters will go into these tools in more detail.

Installing Elasticsearch-head

Elasticsearch-head is a simple, free, open source tool that provides a high-level examination of your cluster. It is one of the most useful tools used when administering and monitoring the health of a cluster. Elasticsearch-head only needs to be installed on one node in your cluster. However, we recommend installing it on all nodes for redundancy. It's installed as an Elasticsearch plugin.

If you have an Internet connection, you can install Elasticsearch-head with the Elasticsearch plugin utility, as follows:

sudo /usr...