Dear John,
could you please raise the logging level to verbose, repeat the request and
attach the updated log?
The log you have reported suggests that the computed image has an empty
layout. We should check why.
In addition, could you also provide some more info please, such as a
gdalinfo output on that sample as well as the XML of the configured
coverage?

Please, let us know.
Best Regards,
Daniele

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On Fri, Mar 13, 2015 at 10:48 PM, Kim, John J. (NE) <[email protected]>
wrote:

>   Hi List, I’ve been looking for answers for days and finally gave into
> asking it on here, any help will be greatly appreciated.
>
>
>
> So I've added the GDAL plugin to my Geoserver to allow me to view certain
> NITF images.
>
> I have everything configured per the instructions and I can preview
> certain images but when I try to
>
> preview larger images in EPSG:404000 it comes up completely black.
>
>
>
> Some general info, things I’ve found and tried:
>
> Geoserver version 2.4.2 on RHEL
>
> Preview works fine with images under certain sizes (~30MB + EPSG:4326),
> but these problematic images
>
> come in 300MB+ and in EPSG:404000. I think EPSG:404000 might be causing
> the issue here, I’ve tried increasing the WMS memory setting,
>
> decreasing the opacity level for the current style to no luck..
>
>
>
> also I’m seeing this error in the geoserver log which I believe is the key:
>
>
>
> [geotools.rendering] – Unable to create a granuleDescriptor
> org.geotools.renderer.lite.gridcoverage2d.GridCoverageRenderer@f0ba455
> due to jai scale bug
>
> [geotools.rendering] – Computed scale denominator: 249999.999999999
>
> [geotools.rendering] – Processing 1 stylers for
> http://www.opengis.net/gml:GridCoverage
>
> [geotools.rendering] – creating rules for scale denominator – 250,000
>
> [geotools.rendering] – Expanding rendering area by 1 pixels to consider
> stroke width
>
>
>
> If anyone has a workaround or a solution to this issue please let me know!
>
>
>
> Thank you and I really appreciate the help,
>
>
>
> *-John Kim*
>
>
>
>
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