Major Description
The common deployment scenario is to install the packages and start services. Creating the /user/<user> directory is currently an extra step during manual installation. In case the user tries to bring up the hive shell with tez enabled, this would result in an exception. The solution is to change the default install directory to /tmp (so that we have the permissions to create the directory /tmp/<user>) and create the /tmp/<user> directory if it did not exist earlier.