1. Prerequisites

Ensure that you have deployed HDP for all the nodes in your cluster. For instructions on deploying HDP, see “Getting Ready to Install” in Installing HDP Using Apache Ambari here.
Ensure that you create a home directory for the user launching the TOS in the HDFS cluster.
EXAMPLE:
If hdptestuser is responsible for launching TOS, then execute the following command on the gateway machine as the administrator user (HDFS user) to create home directory:
```
% hadoop dfs –mkdir /user/hdptestuser
          
```
Ensure the user launching the TOS has appropriate permissions on the HDP cluster.
EXAMPLE:
If hdptestuser is responsible for launching TOS, then execute the following command on the gateway machine as the administrator user (HDFS user) to provide the required permissions:
```
% hadoop dfs –chown hdptestuser:hdptestuser /user/hdptestuser
          
```