Also, if I set up the cron job, will is continue the queued job, or overwrite previously started job? For example, if i keep having the timeout problem, perhaps I could alleviate this with a cron job, so it will just pick up where it left off when timing out. However, if I set the cron job to run every 10 min or so, to handle timeouts, I don't want the cron job to overwrite the sitemap.xml every time it runs.