Storm Blueprints: Patterns for Distributed Real-time Computation

A very useful book for anyone interested in Storm for real-time processing. I am particularly benefited by some of the practical use cases of Storm, especially on Storm Trident. Compared to other books on Storm that I read so far, this one seems to offer very good tutorials on several aspects of Trident which answers some of my puzzles over Trident such as:

• How to implement a Trident State
• How to implement a Trident State Factory
• How to implement a Trident State Updater
• How to effectively uses combiner, reducer, aggregator
• How to implement a Trident non-transactional, repeat transactional topology and opaque trident map state
• How to implement a Trident spout, coordinator, emitter
• How to implement recursive functions in Trident

While the later chapters involving druid and hadoop are a bit difficult for me to assimilate at this stage due to time constraints, i will definitely like to read it again on these chapters.

https://www.packtpub.com/big-data-and-business-intelligence/storm-blueprints-patterns-distributed-real-time-computation