Tips for setting up Hadoop Distributed File System (HDFS)

In order for HDFS to work with PI Integrator for Business Analytics, complete the following tasks:

• Create the HDFS user.

• Create the user directory and grant permissions.

The following procedure describes how to complete these tasks.

1. Create the HDFS user.

   1. Create the HDFS user on the node where WebHDFS is installed.

   2. Add the HDFS user to a group.

   Note: The HDFS user can be added to any group. However, for the purposes of this example, this group will be referred to as the HDFS group.

2. Create the directory and grant permissions.

   1. Create a directory on HDFS.

   2. Change the owner of this directory to the HDFS user.

   3. Change the group to which this directory belongs to HDFS.

   4. Grant Read and Write permissions to the owner of the directory (that is, to the HDFS user).

   5. Grant Read and Write permissions to the group that the directory belongs to.