I succesfully install, configure all the stuffs (key pair, ssh, create cloudera stack) I also sucessful log in to the couldera manager, the Hue, and the tutorial.   My terminal was like this not: [ec2-user@ip-172-31-48-217 ~]$     But when I go to the tutorial 1, start to type the first command in my terminal. it was like:   [ec2-user@ip-172-31-48-217 ~]$ sqoop import-all-tables -m 3 --connect jdbc:mysql://cloudera1:3306/retail_db --username=retail_dba --password=cloudera --compression-codec=snappy --as-parquetfile --warehouse-dir=/user/hive/warehouse --hive-import   -bash: sqoop: command not found     My terminal say sqoop command not found. I also try hadoop, it also show hadoop command not found.  But I did use SSH connect to the manager node instance.   What should I do?     update: I create an instance in EC2, then cloudera live stack create another  4 instances for me. I just notice one of the 4 is the manage node, the other three are worker nodes. But the instance that I created is just a web server.   So my question now is how to use SSH to connect to the manage node? Only the instance that I create have the public DNS, the others don't have public DNS, only have public IP ... View more