On Thu, Nov 12, 2009 at 5:11 PM, Waleed <[email protected]> wrote: > > I have an app in production that pulls 250K feeds, and I'm hoping to > offload my feed pulling to PSHB and start to get updates faster. A few > questions for the experts here: > > 1. I remember hearing that Google's hub at pubsubhubbub.appspot.com > does polling every 3 hours for feeds that don't ping the hub. Is that > accurate? > > 2. If the above is correct, then I'm planning to start by simply > subscribing to all my 250K feeds on the Google hub. I'll get instant > updates for some feeds, and 3-hour delayed updates for others, which > is okay with me. Does anyone see a problem with this plan? > > Falling back to polling isn't a required part of the PSHB spec, and while the Google hub *can* do it, it's not great, so it's off in production. Plus we don't want to confuse people as to what Hubbub does. So no, the Google hub can't be your feed poller.
> 3. Is the Google Hub production ready? Can I expect, say, 99% > reliability or higher? As in, expect 99% or more of new updates to be > delivered to me? > There are no guarantees, but it's run on App Engine, which is pretty reliable. > > 4. Does it handle non-English content? > > Of course. It's all either treated as just bytes, or Unicode, depending on the codepaths. > > Thanks, > Waleed >
