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

[Mark Volz]

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
>
>