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  • Book Overview & Buying Elasticsearch 5.x Cookbook
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Elasticsearch 5.x Cookbook

Elasticsearch 5.x Cookbook

By : Alberto Paro
2.5 (4)
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Elasticsearch 5.x Cookbook

Elasticsearch 5.x Cookbook

2.5 (4)
By: Alberto Paro

Overview of this book

Elasticsearch is a Lucene-based distributed search server that allows users to index and search unstructured content with petabytes of data. This book is your one-stop guide to master the complete Elasticsearch ecosystem. We’ll guide you through comprehensive recipes on what’s new in Elasticsearch 5.x, showing you how to create complex queries and analytics, and perform index mapping, aggregation, and scripting. Further on, you will explore the modules of Cluster and Node monitoring and see ways to back up and restore a snapshot of an index. You will understand how to install Kibana to monitor a cluster and also to extend Kibana for plugins. Finally, you will also see how you can integrate your Java, Scala, Python, and Big Data applications such as Apache Spark and Pig with Elasticsearch, and add enhanced functionalities with custom plugins. By the end of this book, you will have an in-depth knowledge of the implementation of the Elasticsearch architecture and will be able to manage data efficiently and effectively with Elasticsearch.
Table of Contents (25 chapters)
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Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface

Understanding node services


When a node is running, a lot of services are managed by its instance. Services provide additional functionalities to a node and they cover different behaviors such as networking, indexing, analyzing, and so on.

Getting ready

Starting an Elasticsearch node, a lot of output will be prompted; this output is provided during services start up. Every Elasticsearch server, that is running, provides services.

How it works...

Elasticsearch natively provides a large set of functionalities that can be extended with additional plugins.

During a node startup, a lot of required services are automatically started. The most important ones are:

  • Cluster services: This helps you to manage the cluster state and intra node communication and synchronization

  • Indexing service: This helps you to manage all the index operations, initializing all active indices and shards

  • Mapping service: This helps you to manage the document types stored in the cluster (we'll discuss mapping in Chapter 3, Managing Mappings)

  • Network services: This includes services such as HTTP REST services (default on port 9200), and internal ES protocol (port 9300), if the thrift plugin is installed

  • Plugin service: (We will discuss in Chapter 2, Downloading and Setup, for installation and Chapter 12, User Interfaces for detail usage)

  • Aggregation services: This provides advanced analytics on stored Elasticsearch documents such as statistics, histograms, and document grouping

  • Ingesting services: This provides support for document preprocessing before ingestion such as field enrichment, NLP processing, types conversion, and automatic field population

  • Language scripting services: This allows adding new language scripting support to Elasticsearch

Tip

Throughout the book, we'll see recipes that interact with Elasticsearch services. Every base functionality or extended functionality is managed in Elasticsearch as a service.

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