Hi @mranjank    In your setup, your 4 data nodes are your worker nodes. HDFS i.e. where the data are stored is on the data nodes and because of data locality, this is where your 'compute' or 'worker' nodes run too.    If you log into Cloudera Manager and click 'Hosts' at the top and then 'Roles' on the dropdown you will see what services are running on what nodes.   I hope that helps. Steve ... View more

Found how to solve No need to add a public DNS, the welcome screen will come up with IP address as well goto mysandbxo->network interfaces->click interface name->network security group->inbound security rules-> change Tutorials to protocol any http://<ip address>:80/ you will see the welcome screenscreen.jpg ... View more