So, perhaps explain that Sahara is used to deploy Hadoop clusters, and within that, Hadoop's configuration files are in XML. Then provide examples.
Alternatively, maybe the user is looking for an XML file that configures Hadoop jobs in Sahara. For instance, when using OpenStack Sahara to launch a Hadoop cluster, you might have XML configurations for Hadoop itself (like core-site.xml, hdfs-site.xml, etc.), which are standard Hadoop config files. But the user might be conflating Sahara with Hadoop's own XML configs. sahara xml file download full
Another angle: sometimes XML files are used in Sahara's plugin definitions for older versions. Wait, in OpenStack Kilo, Sahara had XML-based plugin definitions, but later versions moved to YAML. If the user is on an older version, maybe they need that. Let me check. For example, in some OpenStack versions, plugins were defined in XML, but I'm not certain. It's safer to assume YAML for OpenStack Sahara. So, perhaps explain that Sahara is used to