[Tilesathome] How often...

[80n]

On Tue, Feb 10, 2009 at 7:26 AM, Ed Loach <ed at loach.me.uk> wrote:

> ... does the request list get updated with autochange tile requests? I ask
> because I just spotted this on Twitter:
>
> > SteveC RT @jokru: awesome work of jburgess: the
> > #openstreetmap-mapnikserver gets now hourly diffs
> > and can render nearly live! Who needs T at H? ;-)
>
> Now I note there is a smiley at the end, and I use the maplint overlay
> quite a bit for checking things, but if Mapnik is being updated hourly now
> rather than weekly (and my changes from the weekend were visible when I
> checked just) then it may be that the Mapnik layer is updated quicker in
> many cases than the Osmarender layer.
>

How well will mapnik scale under load?

As I understand it, most mapnik tiles are generated on-the-fly.  This is
fine when you have a big server and only a few users.  But when you have a
very large number of users (think Google maps) then would the mapnik
approach cope with the load?

It seems to me that T at H is likely to be more scaleable when there are large
numbers of users. The T at H machine will be mainly concerned with serving
images to the user rather than rendering and then serving.

80n



>
> Thoughts?
>
> Ed
>
>
>
> _______________________________________________
> Tilesathome mailing list
> Tilesathome at openstreetmap.org
> http://lists.openstreetmap.org/listinfo/tilesathome
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tilesathome/attachments/20090210/56a504c7/attachment.html>