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  • Book Overview & Buying Elasticsearch for Hadoop
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Elasticsearch for Hadoop

Elasticsearch for Hadoop

By : Shukla
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Elasticsearch for Hadoop

Elasticsearch for Hadoop

5 (1)
By: Shukla

Overview of this book

The Hadoop ecosystem is a de-facto standard for processing terra-bytes and peta-bytes of data. Lucene-enabled Elasticsearch is becoming an industry standard for its full-text search and aggregation capabilities. Elasticsearch-Hadoop serves as a perfect tool to bridge the worlds of Elasticsearch and Hadoop ecosystem to get best out of both the worlds. Powered with Kibana, this stack makes it a cakewalk to get surprising insights out of your massive amount of Hadoop ecosystem in a flash. In this book, you'll learn to use Elasticsearch, Kibana and Elasticsearch-Hadoop effectively to analyze and understand your HDFS and streaming data. You begin with an in-depth understanding of the Hadoop, Elasticsearch, Marvel, and Kibana setup. Right after this, you will learn to successfully import Hadoop data into Elasticsearch by writing MapReduce job in a real-world example. This is then followed by a comprehensive look at Elasticsearch essentials, such as full-text search analysis, queries, filters and aggregations; after which you gain an understanding of creating various visualizations and interactive dashboard using Kibana. Classifying your real-world streaming data and identifying trends in it using Storm and Elasticsearch are some of the other topics that we'll cover. You will also gain an insight about key concepts of Elasticsearch and Elasticsearch-hadoop in distributed mode, advanced configurations along with some common configuration presets you may need for your production deployments. You will have “Go production checklist” and high-level view for cluster administration for post-production. Towards the end, you will learn to integrate Elasticsearch with other Hadoop eco-system tools, such as Pig, Hive and Spark.
Table of Contents (10 chapters)
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9
Index

Chapter 3. Understanding Elasticsearch

In order to fully leverage all the analytic capabilities of Elasticsearch, Hadoop, and the Kibana stack, it is more than helpful to have a sound understanding of the basics of Elasticsearch and its querying concepts. This chapter will help you get more familiar with Elasticsearch, enable you to work with mappings, and write a full-text search and aggregation queries to get an insight from your indexed data.

In this chapter, we will cover the following topics:

  • Knowing search and Elasticsearch
  • Talking to Elasticsearch
  • Controlling the indexing process
  • Elastic searching
  • Performing aggregations
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