May 2017
Intermediate to advanced
294 pages
7h 33m
English
Content preview from Apache Spark 2.x Cookbook
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Message delivery reliability
There are a few message delivery semantics on which message delivery guarantees (or lack of them) are based:
- At most one delivery: This means the message will be delivered zero or one times. It means the message may be lost. It's the cheapest way and is also known as fire and forget.
- At least one delivery: This means in multiple delivery attempts, there may be a chance that the message may be duplicated, but it will not be lost for sure.
- Exactly one delivery: This means that the message is only delivered once. It's neither getting lost or duplicated.
Structured Streaming provides an end-to-end and exactly one message delivery guarantee based on the following features:
- Offset tracking in WAL
- State management ...
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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.
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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.