Hi List,
I'm trying to use an ImageMosaic and I'm getting some really odd behaviour.
- The Mosiac is made of GeoTiffs (inner tiled and overviews) which
GeoServer can serve fine as regular files.
 - There are currently 8 items totalling 11GB (the other 20GB are still
processing). These items all have different shapes and sizes, but none
overlap and they're all part of one grid.
    -I have the "Background Values" set to -9999 for nodata (it had a black
background before this).

What happens:
 If I make a WMS request using the OpenLayers viewer, nothing happens
client side. Server side it's using a bunch of CPU power, and the last item
in the log is:
 2013-05-16 18:16:15,302 DEBUG [org.geotools.image] - Writing out...
It just never writes. There are no error/warn events.

---

If I set it up as a TMS, and try to pre-seed, it takes forever to generate
any tiles.
 Also, when it does generate tiles, the raster-nodata areas (as compared to
the no-raster no-data areas) have a light grey colour to them.
If I tell integrated GWC to "kill" the seeding tasks, it claims to, but
they keep using up my CPU anyway.

Using 2.3.1

AllowMultithreading = true
use_jai_imageread = false
maxallowtiles = -1

The configuration and shapefile were autogenerated and haven't been tweaked.

Can anyone advise? I did have a different ImageMosaic working yesterday
with no problems, but that was a much smaller, simpler dataset.
Thanks,
Jonathan

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