Book Image

Real-Time Big Data Analytics

By : Sumit Gupta, Shilpi Saxena
Book Image

Real-Time Big Data Analytics

By: Sumit Gupta, Shilpi Saxena

Overview of this book

Enterprise has been striving hard to deal with the challenges of data arriving in real time or near real time. Although there are technologies such as Storm and Spark (and many more) that solve the challenges of real-time data, using the appropriate technology/framework for the right business use case is the key to success. This book provides you with the skills required to quickly design, implement and deploy your real-time analytics using real-world examples of big data use cases. From the beginning of the book, we will cover the basics of varied real-time data processing frameworks and technologies. We will discuss and explain the differences between batch and real-time processing in detail, and will also explore the techniques and programming concepts using Apache Storm. Moving on, we’ll familiarize you with “Amazon Kinesis” for real-time data processing on cloud. We will further develop your understanding of real-time analytics through a comprehensive review of Apache Spark along with the high-level architecture and the building blocks of a Spark program. You will learn how to transform your data, get an output from transformations, and persist your results using Spark RDDs, using an interface called Spark SQL to work with Spark. At the end of this book, we will introduce Spark Streaming, the streaming library of Spark, and will walk you through the emerging Lambda Architecture (LA), which provides a hybrid platform for big data processing by combining real-time and precomputed batch data to provide a near real-time view of incoming data.
Table of Contents (17 chapters)
Real-Time Big Data Analytics
About the Authors
About the Reviewer

Understanding the Storm UI

The Storm UI depicts some very vital and important aspects of the Storm cluster and topology. Some of the aspects that Storm depicts form the cardinal rules for optimizing the performance. But, before we talk about the performance, let's befriend the Storm UI and its parameters through series of captures from the Storm UI and descriptions of the same.

Storm UI landing page

The landing page on Storm UI first talks about Cluster Summary, as shown in the following screenshot:

A brief description of the columns available in Cluster Summary, is as follows:

  • Version: As the name suggests, this captures the version of Storm on the UI node. One of the prerequisites for a cluster is that the version of Storm should be same on all the nodes. Thus, this clearly denotes the version of Storm in the cluster.

  • Nimbus uptime: This denotes the duration (in days, hours, minutes, and seconds) for which the Nimbus instance has been running. Nimbus being the coordinator daemon that essentially...