I've tried the solutions I can get here in forum, changing settings in php.ini.
But crawling never end, even if have only 100 urls letf, next time estimated URLs left in a queue will be 11009.
I've used yours public xml sitemaps for 500 urls, for long time and works fine. Now I pay and never get nothing.
I try the script with a small site and get a blank sitemap.xml.
What to do?