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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Managing the Hadoop-YARN services
The sbin Hadoop-YARN bundle contains shell scripts to manage the YARN services. It is always easy to use scripts to start or stop the services. It reads the required Hadoop configuration files, such as yarn-site.xml and slaves, in the etc/hadoop/ directory. This section will cover the usage of different scripts used by YARN.
Similar to Hadoop-HDFS scripts, YARN uses four scripts, listed and described next:
start-yarn.sh: Thestart-yarnscript is used to start all the YARN daemons—ResourceManager, NodeManager on all slaves and the proxy server with a single script. It should be executed on the ResourceManager node, that is, the master node. It reads the slaves file in the configuration folder to get a list of the ...
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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.