August 2015
Intermediate to advanced
278 pages
5h 54m
English
Content preview from Learning YARNBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Summary
With the adoption of YARN with Hadoop, the architecture for MapReduce programming framework and APIs were modified and the new framework is named MRv2. This chapter covered a brief about the differences between MRv1 and MRv2. It also explained the configuration changes, code compatibility, and monitoring of MRv1 applications when administrators and developers migrate from MRv1 to MRv2.
In the next chapter, you'll learn about writing your own YARN applications. This requires you to have basic knowledge of Java programming and is focused for developers who are eager to learn application development that is compatible with YARN.
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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.