February 2016
Beginner to intermediate
326 pages
7h 46m
English
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Performance tuning and best practices
In this section, we will discuss various strategies for optimizing the performance of our Spark jobs. We will also discuss a few best practices with respect to Spark and Spark SQL.
Performance tuning is very subjective and a wide open statement. The very first step in performance tuning is to answer the question, "Do we really need to performance tune our jobs?" Now before we answer this question, we need to consider the following aspects:
- Are our jobs meeting SLAs specified by the business?
If yes, then no need for performance tuning.
- What do we want to achieve and is it realistic?
For example, expecting all Spark jobs (irrespective of data size or computations performed) to be completed in milliseconds is unrealistic. ...
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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.