yarn [--config confdir] COMMAND COMMAND_OPTIONS
Running the YARN script without any arguments, prints the description for all the commands. The
config option is optional and its default value is
Hadoop-YARN clients execute the user commands. These clients connect to the YARN services using the configuration settings specified in the
yarn-site.xml file. As specified in the previous chapter, the
yarn-site.xml file and the other configuration files are all placed in the Hadoop configuration folder (
/home/hduser/hadoop-2.5.1/etc/conf/). There are mainly six user commands in the Hadoop-YARN framework.