# Managing Hadoop cluster connections

After cluster connections are added, you can edit, copy, and test them as needed. Once a connection is no longer required, you can delete that named connection.

* [Edit Hadoop cluster connections](https://docs.pentaho.com/pdia-data-integration/extracting-data-into-pdi/connecting-to-a-hadoop-cluster-with-the-pdi-client-article/managing-hadoop-cluster-connections-connect-to-a-hadoop-cluster-with-the-pdi-client/edit-hadoop-cluster-connections)
* [Duplicate a Hadoop cluster connection](https://docs.pentaho.com/pdia-data-integration/extracting-data-into-pdi/connecting-to-a-hadoop-cluster-with-the-pdi-client-article/managing-hadoop-cluster-connections-connect-to-a-hadoop-cluster-with-the-pdi-client/duplicate-a-hadoop-cluster-connection)
* [Test a cluster connection](https://docs.pentaho.com/pdia-data-integration/extracting-data-into-pdi/connecting-to-a-hadoop-cluster-with-the-pdi-client-article/adding-a-cluster-connection-connect-to-a-hadoop-cluster-with-the-pdi-client/test-the-cluster-connection-add-hadoop-cluster-connection)
* [Delete a Hadoop cluster connection](https://docs.pentaho.com/pdia-data-integration/extracting-data-into-pdi/connecting-to-a-hadoop-cluster-with-the-pdi-client-article/managing-hadoop-cluster-connections-connect-to-a-hadoop-cluster-with-the-pdi-client/delete-a-hadoop-cluster-connection)