What is the GeoTools memory needs?
----------------------------------
Key: GEOT-1464
URL: http://jira.codehaus.org/browse/GEOT-1464
Project: GeoTools
Issue Type: Wish
Affects Versions: 2.3.4
Reporter: Vit Ondruch
We are using GeoTools in our project for rendering maps. As these maps are
usually displayed in web browser in full screen mode, the output image can have
resolution like 1400x1000 px or even higher. The problem is that we are facing
to incompletely rendered maps now. Some layer are rendered and some are not.
The JAVA is usually reporting error such as:
Aug 22, 2007 3:18:11 AM org.geotools.renderer.lite.StreamingRenderer paint
SEVERE: Java heap space
java.lang.OutOfMemoryError: Java heap space
at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:41)
at
java.awt.image.SinglePixelPackedSampleModel.createDataBuffer(SinglePixelPackedSampleModel.java:220)
at
sun.awt.image.IntegerInterleavedRaster.<init>(IntegerInterleavedRaster.java:55)
at
sun.awt.image.IntegerInterleavedRaster.createCompatibleWritableRaster(IntegerInterleavedRaster.java:515)
at
sun.awt.image.BufferedImageGraphicsConfig.createCompatibleImage(BufferedImageGraphicsConfig.java:84)
at
java.awt.GraphicsConfiguration.createCompatibleImage(GraphicsConfiguration.java:155)
at
org.geotools.renderer.lite.StreamingRenderer.createLiteFeatureTypeStyles(StreamingRenderer.java:1402)
at
org.geotools.renderer.lite.StreamingRenderer.processStylers(StreamingRenderer.java:1528)
at
org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:714)
at
org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:436)
at com.Amberg.GEOvis2.GVMap.render(GVMap.java:261)
We tried to solve the problem by increasing default 64 MB heap on 128 MB, but
at higher resolution, there can be problems again.
Could you explain what causes such a high memory consumption? The image
resolution, number of layers, number of rendered entities, number of rendering
rules or .... How we can assure that image will be correctly rendered?
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