September 2016
Beginner to intermediate
326 pages
6h 47m
English
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Input sources and output stores
Spark Streaming supports three kinds of input sources:
- Basic sources: Sources directly available in the StreamingContext API. Examples: file systems, socket connections, and Akka actors.
- Advanced sources: Sources like Kafka, Flume, Kinesis, Twitter, and so on, which are available through extra utility classes.
- Custom sources: Requires implementing a user-defined receiver.
Multiple receivers can be created in the same application to receive data from different sources. It is important to allocate enough resources (cores and memory) for enabling receivers and tasks to execute simultaneously. For example, if you start your application with one core, it will be taken by the receiver and no tasks will be executed because ...
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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.