On Wed, Sep 26, 2012 at 1:31 PM, Ronak Patel <ronak2...@yahoo.com> wrote:
> Hi,
>
> I've been trying to upload 900+ coverages and layers to a single instance
> of Geoserver. These layers are backed by WorldImage files composed of PNGs.
>
> These PNGs range from size of several hundred KB to 100MB. It seems if I
> upload a series of WorldImage files that are large (50 MB+), the JVM
> crashes and takes down my entire Glassfish instance.
>
Hum... I guess that in order to retrive meta-information about the file at
some point the file is fully decompressed into
memory.
PNG is possibly the worst raster format I can think of in terms of
performance, in order to read even a small portion
of it it has to be fully decompressed and loaded in memory.
Save yourself a lot of trouble and use gdal_translate to turn these files
into GeoTiff ones, eventually internally
compressed (DEFLATE if you want to avoid quality loss)
Have a look at this presentation:
http://demo.geo-solutions.it/share/foss4g2011/gs_steroids_sgiannec_foss4g2011.pdf<https://docs.google.com/viewer?url=http://demo.geo-solutions.it/share/foss4g2011/gs_steroids_sgiannec_foss4g2011.pdf>
Cheers
Andrea
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GeoSolutions S.A.S.
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