August 2017
Beginner to intermediate
284 pages
6h 51m
English
Content preview from Mastering Apache Storm
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Definition of a Storm topology
In Storm terminology, a topology is an abstraction that defines the graph of the computation. You create a Storm topology and deploy it on a Storm cluster to process data. A topology can be represented by a direct acyclic graph, where each node does some kind of processing and forwards it to the next node(s) in the flow. The following diagram is a sample Storm topology:
The following are the components of a Storm topology:
- Tuple: A single message/record that flows between the different instances of a topology is called a tuple.
- Stream: The key abstraction in Storm is that of a stream. A stream is an unbounded ...
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