# Install drivers for your Hadoop clusters If you use Hadoop clusters with your Pentaho products, after upgrading to version 10.2, you must install the drivers for the Hadoop clusters you want to access. To conserve memory and storage resources, these drivers are not automatically installed for your upgraded version 10.2 Pentaho products. You can install the specific drivers manually or through the PDI client. For instructions, see [Set up Pentaho to connect to a Hadoop cluster](/install/10.2-install/pentaho-configuration/tasks-to-be-performed-by-an-it-administrator/set-up-the-pentaho-server-to-connect-to-a-hadoop-cluster.md). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.pentaho.com/install/10.2-install/pentaho-upgrade-cp/post-upgrade-tasks-pentaho-ugrade-cp/install-drivers-for-your-hadoop-clusters-post-upgrade-tasks.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.