January 2019
Beginner to intermediate
154 pages
4h 31m
English
Content preview from Apache Spark Quick Start Guide
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Client mode
In the client mode, the driver process runs on the client node (that is, the edge or gateway node) on which the job was submitted. The client node provides resources, such as memory, CPU, and disk space to the driver program, but the executors run on the cluster nodes and they are maintained by the cluster manager, such as YARN. Earlier, we saw how we used client mode to submit our sales application in the previous section. One of the advantages of running your job in client mode is that you can easily access your logs on the same machine. But when your number of Spark applications increase in production, you should not consider client mode for job execution. This is because the client node has limited resources. If some of the ...
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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.