March 2014
Intermediate to advanced
400 pages
10h 7m
English
book
Apache Hadoop™ YARN: Moving beyond MapReduce and Batch Processing with Apache Hadoop™ 2
by Arun C. Murthy, Vinod Kumar Vavilapalli, Doug Eadline, Joseph Niemiec, Jeff Markham
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3. Apache Hadoop YARN Core Concepts
The new Apache Hadoop YARN resource manager is introduced in this chapter. In addition to allowing non-MapReduce tasks to work within a Hadoop installation, YARN (“Yet Another Resource Negotiator”) provides several other advantages over the previous version of Hadoop, including better scalability, cluster utilization, and user agility.
YARN also brings with it several new services that separate it from the standard Hadoop MapReduce model. A new ResourceManager acting purely as a resource scheduler is the sole arbitrator of cluster resources. User applications, including MapReduce jobs, ask for specific resource requests via the new ApplicationMaster component, which in turn negotiates with the ResourceManager ...
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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.