Is there a way to know if there are common problems/bugs associated with 
the current version of pubsubhubbub? Additionally, is there a notification 
system or board announcing upcomming releases to prevent "suddenly 
expiring"?

On Tuesday, February 12, 2013 4:14:25 AM UTC-5, Roman Perepelitsa wrote:
>
> +1 to everything Julien wrote. Subscribers shouldn't rely on the hub doing 
> automatic renewals.
>
> I should also add that we are rolling out a new version of 
> pubsubhubbub.appspot.com. It has quite a few bug fixes including correct 
> handling of subscription expiration. That's why you may see many of your 
> subscriptions suddenly expiring.
>
> Roman.
>
> On Tue, Feb 12, 2013 at 9:15 AM, Julien Genestoux 
> <[email protected]<javascript:>
> > wrote:
>
>> David,
>>
>> As of 0.3, the best practice is to not rely on the hub to renew 
>> susbcriptions pro-actively. 
>> Some hubs (like Superfeedr) will just send confirmation again when the 
>> renewal date approaches... and some other (like the Google Hub) 
>> will rely only on the subscriber's renewal.
>>
>> For 0.4 we took the same approach: subscriptions belong to subscribers, 
>> so they should make sure they're in order... It is relatively easy for
>> hubs to keep track of expiration and poke the subscribers too, but it's 
>> also quite costly for "dead" feeds to which someone may stay subscribed.
>>
>> At Superfeedr, we're thinking about including a X-... header to 
>> notifications as a way indicate when a subscription will expire. This will 
>> be useful for subscribers to renew their subscriptions, while still 
>> "garbage collect" dead feeds which will never trigger any notification. For 
>> our paying customers, we also have an option to be notified on broken 
>> feeds, and have a policy to never explicitly expire subscriptions... 
>>
>>
>> I hope this helps!
>>
>> --
>> Julien Genestoux
>> http://superfeedr.com
>>
>>
>> On Tue, Feb 12, 2013 at 12:12 AM, DCreemer <[email protected]<javascript:>
>> > wrote:
>>
>>> Hi-
>>>
>>> I currently have several 10's of thousands of subscriptions active on 
>>> pubsubhubbub.appspot.com, superfeedr, wordpress, and other hubs. 
>>> Starting on Feb 6, I noticed that most of my subscriptions from 
>>> pubsubhubbub.appspot.com stopped posting updates (other hubs continue 
>>> just fine). Using the pubsubhubbub.appspot.com web ui, I noticed that 
>>> many of the feeds I spot checked have an expiration time in the past (i.e. 
>>> are expired). I see through recent messages on the group that the status of 
>>> hub.lease_seconds is changing, and that it may not have been supported on 
>>> the Google hub anyway. My endpoints currently see and correctly handle 
>>> hub-initiated lease renewal requests.
>>>
>>> What is the current suggested best-practice for renewal (on both 0.3 and 
>>> 0.4 spec hubs)? Should I always initiate re-subscriptions?
>>>
>>> Thanks,
>>> -- David
>>>
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