[Geoserver-users] Image mosaic errors

[Craig L. <Cr...@pi...>]

Hi

This is my first encounter with Geoserver 1.5.3 on WinXP SP2. My hearty
congratulations to the developers for making it so easy to install. I really
found it easy to start serving the demo data.

I then built a mosaic from 34 GeoTiffs, each with a size of about 183MB
including overviews, following the instructions for using gdal at:
http://docs.codehaus.org/display/GEOSDOC/Using+the+ImageMosaic+plugin I have
two issues and I am hoping that the gurus on this list might give me some
pointers on where I am going wrong.

Issue 1:
One of the images is appearing twice, the one position is wrong and so it
overlays another image. I have checked the index shapefile and all appears
to be in order. gdalinfo Also reports the correct projection information
embedded in the GeoTiff (no World Files).

Issue 2:
I find it very difficult to obtain a rendered image due to frequent errors.
I have tried with uDig and Openlayers and the behaviour is the same.
Sometimes I'll get a black screen then if I pan slightly the image appears
correctly. Most other times I cannot retrieve an image at all. uDig gives
the error message: Unexpected end of file from server.

I don't know where to look for error logs or what to look for once I find an
error log, so any pointers will be greatly appreciated. What sort of
hardware is generally advised for this sort of thing? I have a very basic
machine (1GHz processor with 512MB of RAM).

Regards

Craig Leat. 
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