# Advanced settings for connecting to an Amazon EMR cluster The following advanced settings are also available while you are configuring the Pentaho Server to connect to a working Amazon EMR cluster. **Note:** EMR clusters (version 7.x and later) built with JDK 17 exclude the `commons-lang-2.6.jar` library from their standard Hadoop library directories (`$HADOOP_HOME/lib`). To use the EMR driver for EMR 7.x, obtain the `commons-lang-2.6.jar` file from a trusted source, such as the official Maven repository ([Maven Repository: commons-lang » commons-lang » 2.6](https://mvnrepository.com/artifact/commons-lang/commons-lang/2.6)). Then manually copy the downloaded JAR file to the `$HADOOP_HOME/lib` or `$HADOOP_MAPRED_HOME/lib` directory on each node within the EMR cluster to ensure that all worker nodes have access to the library. --- # 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-configuration/tasks-to-be-performed-by-an-it-administrator/set-up-the-pentaho-server-to-connect-to-a-hadoop-cluster/additional-configurations-for-specific-distributions-connecting-to-a-cluster/advanced-settings-for-connecting-to-a-amazon-emr-cluster.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.