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how to use HADOOP_USER_NAME variable

how to use HADOOP_USER_NAME variable

Need a solution to a problem in Cloudera CCA 131 examination. The example video in the exam site is on the flume.

https://www.cloudera.com/more/training/certification/cca-admin.html

As in the exam instructions, the default user is cert but we have to use another user to do our operations, for that we have to use export HADOOP_USER_NAME=<username>

 

I have run export HADOOP_USER_NAME=joe and I tried to create /data/incoming directories using joe user but I ran through permission denied

 

In the following video, It went smoothly to him

https://www.youtube.com/watch?v=CY_XK1kPcTw&feature=youtu.be

 

Can you tell me how to use other users to work  through problems in the CCA131 exam