In this section, we will use Cloudera Manager to configure Kerberos for our cluster running CDH5.
At the time of installation, CDH5 creates the following users:
hdfs: This user runs the namenode, datanodes, and secondary namenode daemons. The following screenshot shows the
hdfsuser as the owner of the namenode service:
mapred: This user runs the jobtracker and tasktracker daemons when using the MRv1, and job history server daemon when using YARN (MRv2).
yarn: This user runs the resource manager and node manager daemons.
oozie: The user runs the Oozie server.
hue: This user runs the Hue Server, Beeswax Server, Authentication ...