September 2017
Beginner to intermediate
360 pages
8h 13m
English
book
Practical Real-time Data Processing and Analytics
by Shilpi Saxena, Selva raj Ramasamy, Prateek Bhati, Saurabh Gupta
Content preview from Practical Real-time Data Processing and Analytics
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Storm architecture and its components
Let's discuss Storm architecture and how it works. The following figure depicts the Storm cluster:
- The Nimbus node acts as the master node in a Storm cluster. It is responsible for analyzing topology and distributing tasks to different supervisors as per their availability. Also, it monitors failure; if one of the supervisors dies, it redistributes the tasks among available supervisors. The Nimbus node uses Zookeeper to keep track of tasks to maintain it's state. If the Nimbus node fails, it can be restarted so that it reads the state of Zookeeper and starts from same point where it failed earlier.
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