On Mon, Jan 18, 2010 at 8:19 PM, Jannis Leidel <[email protected]> wrote:
[...]
>
> Why not? The ping from PyPI to the mirrors would simply tell them to ask PyPI 
> for updates since the last time they were updated. In case a ping doesn't 
> reach a mirror it'll get updated next time it receives a ping.

So in that case, a ping would not be specific to a project at PyPI
being updated, but just to notice that  CHANGELOG has changed ?

>
>> So why bother setting up two different update systems ? each mirror
>> can look at the CHANGELOG every minute or so and get updated on their
>> side.
>
> I'm not proposing two update systems. IMO, there is a difference between the 
> message "package was updated" and the actual mirroring of the package 
> following that message. Each are most useful when combined of course, but the 
> messaging shouldn't be limited to be used only by the mirroring.

If PyPI calls other servers for something else than reading the stats,
it should be a call that returns instantly (with a very fast timeout
as well). In that case, I think it could be done technically.

But yet, I don't really see the use case: what is the big difference
of having PyPI ping you, let's say, ten times per hour, and you
looking if the changelog has changed once every ten minutes ?

What is the usage ? mirrors will always be a bit unsynchronized, since
a mirroring protocol is not a real-time synchronization system. A
one-hour lag is acceptable here.

Tarek

-- 
Tarek Ziadé | http://ziade.org
_______________________________________________
Catalog-SIG mailing list
[email protected]
http://mail.python.org/mailman/listinfo/catalog-sig

Reply via email to