May 2017
Intermediate to advanced
294 pages
7h 33m
English
Content preview from Apache Spark 2.x Cookbook
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CAP Theorem
The CAP Theorem suggests that in distributed architecture, you can pick only two of the following three:
- Consistency: Every read gets the most recent copy of the data
- Availability: Every request receives a response
- (Network) Partition Tolerance: The system continues to operate despite network partition
Another way to look at the CAP theorem is: When the network gets partitioned, either consistency or availability can be guaranteed, not both. The following diagram illustrates how the CAP theorem works when the network is partitioned:
A row is updated in Node 1 as shown in the preceding figure. Before Node 3 receives the update ...
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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.