August 2015
Intermediate to advanced
278 pages
5h 54m
English
Content preview from Learning YARN
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Writing your own application
YARN framework provides flexibility to run any application in a clustered environment. An application could be as simple as a Java process, a shell script, or a simple date command. The ResourceManager service manages the cluster resource allocation and the NodeManager services execute tasks as specified by the application framework; for example, the map and reduce tasks of Hadoop MapReduce jobs.
In this section, you will write your own applications to run in a distributed environment through YARN.
The complete process can be summarized in four simple steps, which are shown in the following diagram:
Step 1 – Create a new ...
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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.
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.