How do I propagate failures from upstream wms-servers?

[Daniel Morissette]

Ben Tuttle wrote:
> 
> Given that mapserver can't do this at the moment have you considered
> other options? While it probably not as efficient you might be able to
> set up a cron to watch your cache for new images and do a "gdalinfo
> -mm" on each new tile in the cache and delete tiles with only one
> value (ie blank tiles).


Blank tiles, or tiles with a single color are a valid case in areas with 
no data or in the middle of very large polygons, so I don't think that 
would work.

Daniel
-- 
Daniel Morissette
http://www.mapgears.com/