August 2017
Beginner to intermediate
278 pages
6h 40m
English
book
Building Data Streaming Applications with Apache Kafka
by Chanchal Singh, Manisha Sethi, Manish Kumar, Anshul Joshi
Content preview from Building Data Streaming Applications with Apache Kafka
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The concept of a Storm application
The Apache Storm application consists of two components:
- Spout: Spout is used to read the stream of data from an external source system and pass it to topology for further processing. Spout can be either reliable or unreliable.
- Reliable spout: Reliable spout is capable of replaying the data in case it failed during the processing. In such a case, spout waits for acknowledgement for each event it has emitted for further processing. Remember this may cost more processing time but is extremely helpful for those applications for which we cannot manage to lose a single record for processing, such as ATM fraud detection applications.
- Unreliable spout: Unreliable spout does not care about re-emitting the spout ...
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