You can login as hdfs user and create one . To do that so .
1. Log in to the host where Namenode / datanode runining .
2. Get in to the /var/run/cloudera-scm-agent process directory .
3. Find a process directory that is namenode / datanode
4 . Once you get into the directory find the hdfs.keytab file .
5 . Do an Kinit using hdfs.keytab - then you will become an hdfs user and can create folders
Let me know if this is suffice.