[OSGeo-Discuss] is TileCache alive ?

Chris Holmes cholmes at opengeo.org
Wed Sep 1 07:46:04 PDT 2010


GeoWebCache supports some basic statistics, see like
http://maps.opengeo.org:9090/geowebcache/home

Better statistics should move forward as we just got a monitoring framework
in GeoServer, see http://geoserver.org/display/GEOS/Monitoring  We'll start
with also monitoring GWC requests, and it shouldn't be too hard to also port
that to standalone.  Should be able to cluster that as well, to gather stats
in to one database.

I think we've done some work distributing tiles over redundant servers, but
didn't build anything specific in GWC for it.  Would be interested to hear
on that list or add to the roadmap exactly how you'd like that to work.

The other recent GWC work has been to be more transaction aware, using Etags
to keep clients more up to date, and subscribing to GeoRSS feeds or direct
to GeoServer transactions.  Oh, and Gabriel also recently added LFU and LRU
caching, so you can just set your max cache size and GWC will delete the
least frequently used if it hits that limit.  Hrm, looks like both of those
need more documentation though.

But I think both TileCache, GeoWebCache and others are open to going to the
next level of tile management, just need contributors or funders.

C

On Wed, Sep 1, 2010 at 9:24 AM, Steven Ottens <steven at minst.net> wrote:

> I'm also interested in new developments in tiling.
> I found that both TileCache and GeoWebCache are lacking in their
> capabilities to handle and manage (selective pretiling, deleting, handling
> empty-tiles) vast amounts of tilesets or more 'enterprise' oriented
> functions like statistics and being able to distribute the tiles over
> redundant servers.
> GWC does have several things in its roadmap:
> http://geowebcache.org/trac/wiki/roadmap but development seems pretty much
> non-existent since the last release (although it seems to pick up again).
>
> Since tiling is becoming more accepted by dataproviders I think it is time
> to work on next level tile management
>
> Steven
>
> On Sep 1, 2010, at 3:06 PM, John Callahan wrote:
>
> > I was also just looking into tile caching options and had exactly the
> same question.  It looks like the latest version (2.10) was released back in
> Jan 2009, and the readme is dated Dec 2007.  It would also need to update
> the use of mod_python, which I read development had stopped a while ago.
> >
> > I know of GeoWebCache, which can also work directly with WMS.  And
> packages like Mapnik and GDAL2Tiles/MapTiler can preprocess your data into
> tiles. Great for overlays.  Are there other tiling mechanisms to consider?
> >
> > - John
> >
> >
> >
> >
> > On Wed, Sep 1, 2010 at 4:51 AM, Bart van den Eijnden <bartvde at osgis.nl>
> wrote:
> > Sure, it has moved to OsGeo infrastructure.
> >
> > http://lists.osgeo.org/pipermail/tilecache/
> >
> > Best regards,
> > Bart
> >
> > --
> > Looking for flexible support on OpenLayers or GeoExt? Please check out
> http://www.osgis.nl/support.html
> >
> > Bart van den Eijnden
> > OSGIS
> > bartvde at osgis.nl
> >
> > On Sep 1, 2010, at 10:45 AM, Sebastian E. Ovide wrote:
> >
> >> Hi Guys,
> >>
> >> from http://openlayers.org/pipermail/tilecache/ it is possible to see
> mails up to April.
> >>
> >> Is TileCache project alive ?
> >>
> >> thanks
> >>
> >> --
> >> Sebastian E. Ovide
> >>
> >>
> >>
> >>
> >> _______________________________________________
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> >> Discuss at lists.osgeo.org
> >> http://lists.osgeo.org/mailman/listinfo/discuss
> >
> >
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