very very long processing time in detail level
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Key: GEOT-2588
URL: http://jira.codehaus.org/browse/GEOT-2588
Project: GeoTools
Issue Type: Bug
Components: core render
Affects Versions: 2.5.6, 2.5.5
Environment: Geoserver, Windows, Jave JDK 1.5 and JDK 1.6
Reporter: hts
Assignee: Andrea Aime
Priority: Critical
Attachments: shapes.zip
Dear Team!
we have found a very critical thing that nakes in impossible to use the server
for our cases. Without this problem it could be the super fastest geoserver.
We are using teleatlas shapefiles and render them using the geoserver. The
files that are used for the test contains areas and the total file size is only
a few megabytes.
In higher levels until the scale 7500 it is wokring ok and the server reacts
ok, but after that when I go deeper to scale ~4500 its taking already 10-20
seconds, deeper causes the server to crash with a memory problem.
I debugged the class ShapefileRenderer, made some log printouts. The same was
sone with the StyledShapePainter class.
In the case in high scalellevels (more than 10.000 up to 9M..) the following
happens
- the call graphics.draw(shape); of the StyledShapePainter.paint is fast
- loading time: less than 1 sec
- the following code is excuted many times, but fast, because there are less
coordinates in the geometry / shape
- result on the screen is OK
2 Jul 16:23:47 DEBUG [renderer.shape] - before createStyle ...
scaleRange:[3974209.0962380837, 3974209.0962380837]
2 Jul 16:23:47 DEBUG [renderer.shape] - after createStyle ...
scaleRange:[3974209.0962380837, 3974209.0962380837]
2 Jul 16:23:47 DEBUG [renderer.shape] - dimensioin:2
2 Jul 16:23:47 DEBUG [renderer.shape] - area:22.021736991590146
2 Jul 16:23:47 DEBUG [renderer.shape] - length:41.354252948086845
2 Jul 16:23:47 DEBUG [renderer.shape] - NumGeometries:3
2 Jul 16:23:47 DEBUG [renderer.shape] - getSRID:0
2 Jul 16:23:47 DEBUG [renderer.shape] - coordinates length:36
2 Jul 16:23:47 DEBUG [renderer.shape] - before paint1
In the second case (sacle: 7762, we jsut see a few lines on thre screeen)
- the call graphics.draw(shape); of the StyledShapePainter.paint is very slow,
takes sometimes 2- 3 seconds per operation, because there are many coordinates
in the shape, what is totally unnecessary
- loading time: ~20 sec
- result on the screen is just existing of a few lines!
- the following code is excuted many times and based on the long time to
process the graphics paint methode, it takes long
Jul 16:24:53 DEBUG [renderer.shape] - applying symbolizer
org.geotools.styling.polygonsymbolizeri...@1367d25a
Jul 16:24:53 DEBUG [renderer.shape] - before createStyle ...
scaleRange:[7762.127141087124, 7762.127141087124]
Jul 16:24:53 DEBUG [renderer.shape] - after createStyle ...
scaleRange:[7762.127141087124, 7762.127141087124]
Jul 16:24:53 DEBUG [renderer.shape] - area:1.3864384599060444E10
Jul 16:24:53 DEBUG [renderer.shape] - length:867085.4970931178
Jul 16:24:53 DEBUG [renderer.shape] - NumGeometries:2
Jul 16:24:53 DEBUG [renderer.shape] - getSRID:0
Jul 16:24:53 DEBUG [renderer.shape] - coordinates length:6392
Jul 16:24:53 DEBUG [renderer.shape] - before paint1bounds
54.3003511,24.2250281 54.8057382,24.8082514 minX:54.3003511 minY:24.2250281
maxX:54.8057382 maxY:24.8082514
Can you please tell me what we shall do?
We have already invested 2 weeks to come so far, this was very diffucult to
dectect.
br,
Markus
The shapes, style and feature type is attached for your info!
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