Advanced parallelism, data and partition affinity, and other techniques described in this article provide an essential set of tools that can help streamline offline processing.

If existing XML tools or technologies are similar to the non-XML data processing logic to be developed, you might take an opportunity to XMLize and bridge the non-XML data into the XML field.

Hadoop is an Apache Software Foundation project that consists of a set of tools for storing and processing large amounts of unstructured data.