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Elasticsearch for Hadoop

Elasticsearch for Hadoop

By : Shukla
5 (1)
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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 5. Real-Time Analytics

We know how to get interesting insights from the data collected from various sources to the batch mode. However, sooner is always better, especially when it can save you time and money. If there is a threat related to some financial transaction or inventory getting lower, you want to know about such events in a snap, rather than waiting for your nightly jobs to run and your analyst pointing out the threat to you the next morning.

In this chapter, we will take a look at how to import and analyze real-time streaming data in Elasticsearch using Apache Storm. We will also take a look at some of the advanced Elasticsearch functionalities that can be your Swiss army knife in many situations.

The following topics will be covered in the chapter:

  • Getting started with Twitter Trend Analyzer
  • Injecting streaming data into Storm
  • Analyzing the trends in Kibana
  • Classifying tweets using percolators
CONTINUE READING
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