[mapserver-users] Mapcache - Is it possible to have two tilesets share a single cache at particular zoom levels?

[Steve Lime]

You'd still need to configure the political map tileset not to generate
tiles in the symlinked folders but to serve tiles from those folders - I
don't think that's possible. IMHO it's better to configure your political
map tiles to only be available for a specific range of zoom levels and
advertise that explicitly.

On Thu, Oct 24, 2019 at 3:34 PM Mark Volz <MarkVolz at co.lyon.mn.us> wrote:

> Andreas,
>
> Good idea.  It looks like Windows can create symlinks.  I suppose I could
> try symlinking the cache for levels 5-11.  Do you know if I would need to
> create hard or soft links to do this?   Also, I would like to make sure our
> backup software does not try to backup the actual data twice...
> Reference:
> https://www.howtogeek.com/howto/16226/complete-guide-to-symbolic-links-symlinks-on-windows-or-linux/
>
> Thanks!
>
> Sincerely,
> Mark Volz, GISP
> Lyon County GIS Coordinator
> 504 Fairgrounds Rd
> Marshall, MN 56258
> Ph:  (507) 532-8218
> http://lyonco.org/
> http://geomoose.lyonco.org/
>
>
> >What about symlinking the level directories?
>
>
> > -----Original Message-----
> > From: mapserver-users [mailto:mapserver-users-
> > bounces at lists.osgeo.org] On Behalf Of Mark Volz
> > Sent: Wednesday, October 23, 2019 4:12 PM
> > To: mapserver-users at lists.osgeo.org
> > Subject: [mapserver-users] Mapcache - Is it possible to have two
> > tilesets share a single cache at particular zoom levels?
> >
> > Hello,
> >
> >
> >
> > I have two similar tilesets configured in Mapcache.  One of the
> > tilesets displays a political map at small scales, then changes to an
> > air photo map as the user zooms into the map.  The second tileset
> > displays air photos at every zoom level.  It would be useful if these
> > tilesets could share a single cache for zoom levels 5-11.  This way we
> > could save a significant amount of space on the server.
> >
> >
> >
> > Example #1:
> >
> > Political and Air Photo Basemap:
> >
> > *         Zoom level 0-4:  Use the cache from the "political map
> > cache"
> >
> > *         Zoom level 5-11: Use the cache from the "air photo
> > cache"
> >
> > Air Photo Basemap
> >
> > *         Zoom level 0-11:  Use the cache from the "air photo
> > cache"
> >
> > Result:
> >
> > *         Any tiles at level 5-11, which will take up the majority
> > of the space on the sever will not need to be duplicated between the
> > two tilesets.
> >
> >
> >
> > Please let me know if it is possible to share caches between different
> > tilesets.
> >
> >
> >
> > Thanks!
> >
> >
> >
> > Sincerely,
> >
> > Mark Volz, GISP
> >
> > Lyon County GIS Coordinator
> >
> >
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