I started getting a lot of complaints recently from users that their feeds in my app are not updating. Looking into it, I realized that I have a few thousand feeds for which I'm subscribed to hubs but don't receive notifications (out of about of 300K feeds). After investigating a few cases my findings so far are:
- they are feedburner feeds - the feeds have the hub meta tag set to http://pubsubhubbub.appspot.com - Checking the subscription details on the reference hub it shows that I have a subscription to that feed and it's active. - Yet, I'm not receiving updates from the hub when new posts are published. It's very hard trying to debug a distributed system like this, so I'm wondering if anyone else is encountering similar issues. Waleed P.S. The cases I tested turned out to be feeds that use feedburner, but that could be because it's very popular. The issue might be something else not related to feedburner, and that's what I'm trying to find out.
