December 2018
Beginner
186 pages
4h 10m
English
Content preview from Apache Kafka Quick Start Guide
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Kafka Streams in a nutshell
Kafka Streams is a library and part of Apache Kafka, used to process streams into and from Kafka. In functional programming, there are several operations over collections, such as the following:
- filter
- map
- flatMap
- groupBy
- join
The success of streaming platforms such as Apache Spark, Apache Flink, Apache Storm, and Akka Streams is to incorporate these stateless functions to process data streams. Kafka Streams provides a DSL to incorporate these functions to manipulate data streams. Kafka Streams also has stateful transformations; these are operations related to the aggregation that depend on the state of the messages as a group, for example, the windowing functions and support for late arrival data. Kafka Streams ...
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