i had 589 urls in my old site map. out of this, 490 urls were indexed.
today i regenerated my site map and now it has 7100 records.
then i went to google webmaster tool and resubmitted the updated site map.
but google webmaster tools still shows :
Submitted URLs
589
490 URLs in web index
It should be shown 7100URLs submitted right? whats wrong ?
The sitemap data can be a little outdated from my experience. Sometimes Google takes a little while to update it and/or sometimes it might decrease suddenly for no reason, but I have found that it typically corrects itself within a few days.
It takes time for Google to find out which URLs in the XML sitemaps it has in its index. (So it is normal there can be quite a delay there.)
But I have never seen GWT getting the count of submitted URLs wrong then… (Assuming GWT has informed you it has found and updated to the new sitemap. There can be a slighy delay here as well, but usually happens fast.)
Google will not crawl your sitemap as and when you submit any sitemap. Approximately, it will take 24 hours or sometimes more than 2 days. Just submit your sitemap and forget about that. All your links will be crawled gradually.
It will take time for Google to update the number. I’ve recently added a News sitemap and it took the best part of a week for Google to acknowledge the number of pages within their index.