Hello list,
I have 20,000 of TIFF+TFW files that I want to serve in GeoServer 2.4.1 as WMS.
I have followed the GeoServer on Steroids notes and I did the following:
1. Added projection using gdal_translate
2. Added inner-tiles (512 x 512) using gdal_translate
3. Added overviews (2 4 8 16 32) using gdal_addo
4. Compressed the dataset with LZW method using gdal_translate
5. Created one big GeoTIFF file using gdal_merge.py
I have tested the above on a small set of 150 TIFFs and the result was
one big GeoTIFF of 10.8 GB size. I have 10,000 TIFFs and this way I will
end up with roughly 100 GeoTIFF files having a size of 10GB each which
is far more than the original size of all the TIFF files!
I have a couple of questions:
1. What compression method do you recommend? (I am currently testing with LZW
predictor=1, LZW predictor=2, Deflate predictor=1 and Deflate predictor=2).
2. Are the overviews enough? Do I need to generate more overviews? (e.g 64 128)
3. What resampling algorithms are most recommended? Where can I read about
resampling algorithms?
4.
5. Any tips or recommendations?
Best regards,
//Ammar
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