On Fri, Mar 16, 2012 at 11:56 AM, Dmitriy Tyugaev <[email protected]> wrote:
> Hello list!
>
> Please give me an advice. I have Windows 2008 x64 with large volumes of
> memory. I'm faced with a choice Java_x86+JAI+3GB of RAM vs.
> Java_x64_withoutJAI+6-8GB of RAM for rendering large datasets on the
> Geoserver. As I know there are no JAI libs for Windows x64. Geoserver used
> to render vector data from Postgres in two projections EPSG:4326 and
> EPSG:900913.
>
> What should I choose? And why?

I would go for the former, GeoServer never loads the full data set in memory,
it loads it in small chunks, renders/transform it, outputs the result, get
another chunk and so on (we call it data streaming).
It's normally not beneficial to give GeoServer more than 2GB of memory,
unless the maps you need to build (in terms of pixel size) are really big.

If you have lots of memory to give GeoServer better start two GeoServer
in parallel and get more scalability, see this presentation for other
suggestions:
http://demo.geo-solutions.it/share/foss4g2011/gs_steroids_sgiannec_foss4g2011.pdf

Cheers
Andrea

-- 
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Ing. Andrea Aime
GeoSolutions S.A.S.
Tech lead

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