pubsubhubbub.appspot.com return error 500 when checking a feed

[Jérémy Benoist]

I just add pubhubsubbub support for my new platform.

I've sent few feed to the hub and when I check the topic detail, I got a 500 for every feed I've sent.

You can see the 500: https://pubsubhubbub.appspot.com/topic-details?hub.url=http://api.f43.me/infoconcert

And the feed: http://api.f43.me/infoconcert

I've other feeds https://pubsubhubbub.appspot.com/topic-details?hub.url=http://api.f43.me/slate

Each feed I send to publish, goes 500 after when checking.

I ping hub using basic cURL in PHP. And it returns a 204, seems ok to me then.

I don't know what can be wrong with my feed, or what I've to define.

Any idea?

[Jérémy Benoist]

In fact, it seems to be every time a ping the hub in *the first time*.

After few hours, the 500 is gone and it display every thing ok.

Here is a fresh one (well, sent 14 hours ago..), displaying a 500 https://pubsubhubbub.appspot.com/topic-details?hub.url=http://api.f43.me/iphonix

[Julien Genestoux]

Is that happening with every hub or just the google one?

Have you tried http://pubsubhubbub.superfeedr.com/ ?

Thanks,

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[Jeremy Benoist]

Well, I'm playing with the hub from Google at the moment. And it seems that for every new feed, I got a 500. Then few hours/days later, the feed seems ok, and few hours/days later again, Reader/Feedly/etc.. use the hub.

About superfeedr, is there a way to see what the hub store for a given feed? Like the "topic details" from Google?

Thanks

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[Julien Genestoux]

I'm not familiar with the topic details (link maybe?) but we can provide some things indeed, like analytics, etc...

Thanks,

[Jérémy Benoist]

Like that https://pubsubhubbub.appspot.com/topic-details?hub.url=http://api.f43.me/slate

​Being able to retrieve information for a given feed using an URL or an API 

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[Julien Genestoux]

Jeremy, 

Ha, then, yes we have something like this for subscribers but it's easy to open it up to publishers for their own feeds.

Here is an example of what you can get :

<feed xmlns="http://www.w3.org/2005/Atom"><status xmlns="http://superfeedr.com/xmpp-pubsub-ext" feed="http://blog.superfeedr.com/atom.xml"><http code="304">Fetched (ring) 304</http><next_fetch>2013-06-24T06:04:18Z</next_fetch><period>43200</period><last_fetch>2013-06-23T18:04:18Z</last_fetch><last_parse>2013-06-23T08:05:28Z</last_parse><last_maintenance_at>2013-06-23T08:05:28Z</last_maintenance_at><publisher>true</publisher></status></feed>

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[Roman]

Hi Jérémy,

If the topic-details page says the hub received HTTP 500 when trying to fetch your feed, it usually means your server did indeed reply HTTP 500.

There could be bugs, though. I was away for a few days and now all the feeds you linked to look OK. Could you send me a couple of fresh ones that exhibit this behavior? I'll check them in the hub.

Roman.

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[Jeremy Benoist]

Hi Roman,

Thanks for your reply.

Here is a fresh example I just sent to the hub: https://pubsubhubbub.appspot.com/topic-details?hub.url=http://api.f43.me/macgeneration and which return a 500.

On my side, there is no 500 reported on my server for all these feeds.

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[Roman]

Thanks, Jérémy!

I see now that the diagnostics page itself gives HTTP 500 (I initially assumed that the diagnostics page works and says that the hub encountered HTTP 500 when trying to fetch a feed). I'm looking into it.

Roman.

[Roman]

This problem is now fixed, https://pubsubhubbub.appspot.com/topic-details shouldn't be returning HTTP 500 anymore.

Roman.

[Jeremy Benoist]

Thanks you Roman!

I've tested with a new feed, and the hub return the right information.

By the way, is this hub will be affected by the end of Google Reader? Or it's really not related?

Jeremy

[Roman]

The Google hub will continue running and won't be affected by the Reader shutdown.

Roman.

[Julien Genestoux]

Jeremy,

It is now possible to retrieve a given feed's status for hosted hubs:

http:/<hub domain>/?hub.mode=retrieve&hub.topic=<feed>
For example:

http://pubsubhubbub.superfeedr.com/?hub.mode=retrieve&hub.topic=http://push-pub.appspot.com/feed

Let me know if that was what you were looking for!
Thanks,

[Jeremy Benoist]

Oh, here I can retrieve all feeds associated to a hub, right?

I was looking for a something like Google does: retrieve the last item from a feed that is associated to a hub.

Something to perform a quick check if the hub is up to date with the feed.

Thanks for your answer!

[Julien Genestoux]

Well, that's what this does.
You actually get the last 10 entries to the feed.

Thanks,