i have a portal and that have more than 1000000 pages yet, how can i submit my all pages in Google webmaster tools?
Would it be feasible to split the sitemap up into different sections of your website? While e.g. A1SG when configured for large sites quite likely could handle upwards one million URLs, scanning that large a website would take a long time (!) So it might be better to create sitemaps for different parts of your website instead. (And then create a sitemap index file)