I could not able to create a directory in Hadoop on the aws instance of the hdpcd practice exam. the error message is " permission denied" when I try to execute the command from the first task ( to create a directory in Hadoop) used Hadoop fs -mkdir /user/Horton/flightdelays. and also I could not able to see the datasets, solutions and also the start-all services scripts in the home directory. please help .. thank you @rich ... View more