how to increase the max_articles_per_feed &oldest_article

[iray1991]

In a new recipe I've Switched to Advanced mode and changed the settings from :

class AdvancedUserRecipe1327999270(BasicNewsRecipe):
title = u'\u4f59\u665f'
oldest_article = 365
max_articles_per_feed = 100
auto_cleanup = True

feeds = [(u'\u4f59\u665f', u'http://www.luanxiang.org/blog/feed')]

into:
class AdvancedUserRecipe1327999270(BasicNewsRecipe):
title = u'\u4f59\u665f'
oldest_article = 10000
max_articles_per_feed = 10000
auto_cleanup = True

feeds = [(u'\u4f59\u665f', u'http://www.luanxiang.org/blog/feed')]

But when I download the RSS again it turns out to be：

<urlopen error [Errno 10060] >

can you give more reference for me?Does that mean the API has a number limitation and we can't set it into any number which is lager？

Since most of the feeds I subscribed to are more than a year and they mean a lot to me as I want have a thorough understanding of the blogger's whole ideas,I developed such recipe.

Thx！