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Learning Storm
Create real-time stream processing applications with
Apache Storm
Ankit Jain
Anand Nalya
BIRMINGHAM - MUMBAI
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Learning Storm
Copyright © 2014 Packt Publishing
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First published: August 2014
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ISBN 978-1-78398-132-8
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Cover image by Pratyush Mohanta ([email protected])
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Credits
Authors Project Coordinator
Ankit Jain Harshal Ved
Anand Nalya
Proofreaders
Simran Bhogal
Reviewers
Vinoth Kannan Ameesha Green
Sonal Raj Paul Hindle
Danijel Schiavuzzi
Indexers
Hemangini Bari
Commissioning Editor
Usha Iyer Tejal Soni
Priya Subramani
Acquisition Editor
Llewellyn Rozario
Graphics
Abhinash Sahu
Content Development Editor
Sankalp Pawar
Production Coordinator
Saiprasad Kadam
Technical Editors
Menza Mathew
Cover Work
Siddhi Rane Saiprasad Kadam
Copy Editors
Sarang Chari
Mradula Hegde
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About the Authors
Ankit Jain holds a Bachelor's degree in Computer Science Engineering. He has
4 years of experience in designing and architecting solutions for the Big Data domain
and has been involved with several complex engagements. His technical strengths
include Hadoop, Storm, S4, HBase, Hive, Sqoop, Flume, ElasticSearch, Machine
Learning, Kafka, Spring, Java, and J2EE. He is currently employed with Impetus
Infotech Pvt. Ltd.
He also shares his thoughts on his personal blog at http://ankitasblogger.
blogspot.in/. You can follow him on Twitter at @mynameisanky. He spends most
of his time reading books and playing with different technologies. When not at work,
he spends time with his family and friends watching movies and playing games.
I would like to thank my family and colleagues for always being
there for me. Special thanks to the Packt Publishing team; without
you guys, this work would not have been possible.
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Anand Nalya is a full stack engineer with over 8 years of extensive experience
in designing, developing, deploying, and benchmarking Big Data and web-scale
applications for both start-ups and enterprises. He focuses on reducing the
complexity in getting things done with brevity in code.
He blogs about Big Data, web applications, and technology in general at
http://anandnalya.com/. You can also follow him on Twitter at @anandnalya.
When not working on projects, he can be found stargazing or reading.
I would like to thank my wife, Nidhi, for putting up with so many
of my side projects and my family members who are always there
for me. Special thanks to my colleagues who helped me validate the
writing, and finally, the reviewers and editors at Packt Publishing,
without whom this work would not have been possible.
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About the Reviewers
Vinoth Kannan is a solution architect at WidasConcepts, Germany, that
focuses on creating robust, highly scalable, real-time systems for storage, search,
and analytics. He now works in Germany after his professional stints in France,
Italy, and India.
Currently, he works extensively with open source frameworks based on Storm,
Hadoop, and NoSQL databases. He has helped design and develop complex,
real-time Big Data systems for some of the largest financial institutions and
e-commerce companies.
He also co-organizes the Big Data User group in Karlsruhe and Stuttgart in Germany,
and is a regular speaker at user group meets and international conferences on Big
Data. He holds a double Master's degree in Communication Systems Engineering
from Politecnico di Torino, Italy, and Grenoble Institute of Technology, France.
This is for my wonderful parents and my beloved wife, Sudha.
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Sonal Raj is a Pythonista, technology enthusiast, and an entrepreneur. He is an
engineer with dreams. He has been a research fellow at SERC, IISc, Bangalore, and
he has pursued projects on distributed computing and real-time operations. He has
spoken at PyCon India on Storm and Neo4J and has published articles and research
papers in leading magazines and international journals. Presently, he works
at Sigmoid Analytics, where he is actively involved in the development of
machine-learning frameworks and Big Data solutions.
I am grateful to Ankit and Anand for patiently listening to my
critiques, and I'd like to thank the open source community for
keeping their passion alive and contributing to remarkable projects
such as Storm. A special thank you to my parents, without whom I
never would have grown to love learning as much as I do.
Danijel Schiavuzzi is a software engineer and technology enthusiast with
a passionate interest in systems programming and distributed systems.
Currently, he works at Infobip, where he finds new usages for Storm and other
Big Data technologies in the telecom domain on a daily basis. He has a strong
focus on real-time data analytics, log processing, and external systems monitoring
and alerting. He is passionate about open source, having contributed a few minor
patches to Storm itself.
In his spare time, he enjoys reading a book, following space exploration and scientific
and technological news, tinkering with various gadgets, listening and occasionally
playing music, discovering old art movie masterpieces, and enjoying cycling around
beautiful natural sceneries.
I would like to thank the Apache Storm community for developing
such a great technology and making distributed computing more fun.
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Table of Contents
Preface 1
Chapter 1: Setting Up Storm on a Single Machine 7
Features of Storm 8
Storm components 9
Nimbus 9
Supervisor nodes 9
The ZooKeeper cluster 10
The Storm data model 10
Definition of a Storm topology 11
Operation modes 14
Setting up your development environment 15
Installing Java SDK 6 15
Installing Maven 16
Installing Git – distributed version control 17
Installing the STS IDE 17
Developing a sample topology 19
Setting up ZooKeeper 25
Setting up Storm on a single development machine 26
Deploying the sample topology on a single-node cluster 28
Summary 31
Chapter 2: Setting Up a Storm Cluster 33
Setting up a ZooKeeper cluster 33
Setting up a distributed Storm cluster 37
Deploying a topology on a remote Storm cluster 39
Deploying the sample topology on the remote cluster 40
Configuring the parallelism of a topology 42
The worker process 42
The executor 42
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