The RPM installation package for the Hadoop data adapter is available from the EnterpriseDB repository. Before installing the data adapter, you must:Please note that you may need to enable the [extras] repository definition in the CentOS-Base.repo file (located in /etc/yum.repos.d).You must also have credentials that allow access to the EnterpriseDB repository. For information about requesting credentials, visit:
3. Install the data adapter.To create the repository configuration file, assume superuser privileges and invoke the following command:The repository configuration file is named edb.repo. The file resides in /etc/yum.repos.d.After creating the edb.repo file, use your choice of editor to ensure that the value of the enabled parameter is 1, and replace the username and password placeholders in the baseurl specification with the name and password of a registered EnterpriseDB user.After saving your changes to the configuration file, you can use the yum install command to the data adapter:yum install edb-as-xx-hdfs_fdwWhen you install an RPM package that is signed by a source that is not recognized by your system, yum may ask for your permission to import the key to your local server. If prompted, and you are satisfied that the packages come from a trustworthy source, enter a y, and press Return to continue.