I want to share the solution for a problem I (and it seems others) have had with the Drupal xmlsitemap module. The problem results in zero nodes being indexed in the sitemap which, of course, is an undesired result because the purpose of xmlsitemap is to reliably inform search engines of the nodes on your site so they can more easily index your site. Telling the search engine "I have no nodes" is a kiss of death in terms of getting traffic, that is until the search engine spiders your site and finds everything that way. But they don't spider sites every day.