Book Image

Building Python Real-Time Applications with Storm

By : Kartik Bhatnagar, Barry Hart
Book Image

Building Python Real-Time Applications with Storm

By: Kartik Bhatnagar, Barry Hart

Overview of this book

Big data is a trending concept that everyone wants to learn about. With its ability to process all kinds of data in real time, Storm is an important addition to your big data “bag of tricks.” At the same time, Python is one of the fastest-growing programming languages today. It has become a top choice for both data science and everyday application development. Together, Storm and Python enable you to build and deploy real-time big data applications quickly and easily. You will begin with some basic command tutorials to set up storm and learn about its configurations in detail. You will then go through the requirement scenarios to create a Storm cluster. Next, you’ll be provided with an overview of Petrel, followed by an example of Twitter topology and persistence using Redis and MongoDB. Finally, you will build a production-quality Storm topology using development best practices.
Table of Contents (14 chapters)


If the topology doesn't run correctly, review the log files created in the current directory. Errors are often caused by using a version of Storm that does not have a corresponding version of Petrel on the PyPI website ( At the time of writing this book, two Storm versions are supported:

  • 0.9.3

  • 0.9.4

If you are using an unsupported version of Storm, you are likely to see an error similar to one of these:

  File "/home/barry/.virtualenvs/petrel2/lib/python2.7/site-packages/petrel-", line 19, in get_storm_version
AttributeError: 'NoneType' object has no attribute 'group'

IOError: [Errno 2] No such file or directory: '/home/barry/.virtualenvs/petrel2/lib/python2.7/site-packages/petrel-'