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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Chapter 3. Administering a Hadoop-YARN Cluster
In the previous chapter, we covered the installation steps to configure single and multi-node Hadoop-YARN clusters. As an administrator or a user of a Hadoop-YARN cluster, it is important to know how services are configured or managed. For example, an administrator must monitor the health of all the nodes across the cluster and a user should be able to view the logs of the applications submitted.
Hadoop-YARN has a predefined set of user, as well as administrative commands. It exposes monitoring data as service metrics and provides an easy integration of monitoring data with tools such as Ganglia, Nagios, and so on. It also defines a mechanism for High Availability and recovery.
In this chapter, we will ...
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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.