April 2015
Beginner to intermediate
328 pages
11h 1m
English
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Chapter 17. Micro-batch stream processing: Illustration
This chapter covers
- Trident, Apache Storm’s micro-batch-processing API
- Integrating Kafka, Trident, and Cassandra
- Fault-tolerant task local state
In the last chapter you learned the core concepts of micro-batch processing. By processing tuples in a series of small batches, you can achieve exactly-once processing semantics. By maintaining a strong ordering on the processing of batches and storing the batch ID information with your state, you can know whether or not the batch has been processed before. This allows you to avoid ever applying updates multiple times, thereby achieving exactly-once semantics.
You saw how with some minor extensions pipe diagrams could be used to represent ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.