Hi All,
I would like to propose an enhancement to the rendering within GeoServer.
With the recent release, Geoserver now be default uses StreamingRenderer, as
oppose to previously when ShapefileRenderer was the default renderer.
The good thing about the ShapefileRenderer, is that it made a call to
StreamingRenderer. Due to the architecture of ShapefileRenderer, we were able
to make the method which calls StreamingRenderer multithreaded, so that if
multiple WMS layers are called (For example in OS On Demand there is an OS
MasterMap product which contains 6 layers: TOPOGRAPHICAREA, TOPOGRPAHICLINE,
BOUNDARYLINE, CARTOGRPAHICSYMBOL, TOPOGRPAHICPOINT AND CARTOGRAPHICTEXT) using
the parallel approach, we have seen tremendous improvements in performance
compared to when the ShapefileRenderer uses a single thread for rendering all 6
layers at the same time.
I understand that ShapefileRenderer is now in an unsupported state, so maybe we
can migrate this to be a WMSRenderer as I'm not sure of the different use cases
away from WMS requests.
Thanks,
Steve
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