|how often Google reader poll from each feed? any frequency upper/lower bound||lgpublic||4/25/12 1:12 PM|
I am using Google reader subscribe to community comment feeds like this one:
there is more around 5 new items every minute. But it seems Google polls from it every 8 minute and thus miss many items. How does Google do for this "fast" feed? Is there aggrement saying "we will not poll faster than this rate", or "we will not poll slower than this rate"?
|Re: how often Google reader poll from each feed? any frequency upper/lower bound||Matti nescio||4/25/12 2:56 PM|
On Wednesday, 25 April 2012 23:12:36 UTC+3, lgpublic wrote:http://online.wsj.com/community/rss/communitylive.sync?mod=rss_com_live
A bit weird a feed. When viewing it directly in browser, sometimes it has ~20 items , all from the past 5 minutes.
Other times it has > 60 items from the past hour.
About every 5 minutes is the fastest I've ever observed, and only occasionally.
That's been with feeds that have a lot more ( several orders of magnitude more) subscribers
than the wsj feed, and posting >3 times as many items per week.
Any such information from Google Feedfetchers side is not publicly available.
Each feed/server can tell it (and other feedreaders) preferred limits - either to update the feed within a few seconds
after an update, or not more often than eg. once every half an hour.