The following yarn, hdfs, and mapred user accounts for hadoop group can be created as follows:
$ groupadd hadoop
$ useradd -g hadoop yarn
$ useradd -g hadoop hdfs
$ useradd -g hadoop mapred
The following yarn, hdfs, and mapred user accounts for hadoop group can be created as follows:
$ groupadd hadoop
$ useradd -g hadoop yarn
$ useradd -g hadoop hdfs
$ useradd -g hadoop mapred