Hello, I have a layer group consisting of three layers. Each corresponding to different tables in PostGIS and different scale levels as determined in three different stylefiles. Now suddenly the layer group is very slow when viewed from far away. It used to work a lot faster. Not sure when it changed although we upgraded to the 2.25.1 version, but I think this was happening before too. Just now started investigating.
Here is the configuration: Layer Group mode single. Layer 1: 2 000 000 features, shown on scale 4000 and below. Layer 2: 200 000 features, shown on scale between 4000 - 8000. Layer 3: 20 000 features, shown on scales over 8000 Styles are quite large with the biggest one being just under 4000 lines in CSS and 16 000 lines in SLD. Maybe a contributing factor but I also tested with generic style modified with similar scale ranges. I tested with scale 1:30 000 and it took some 10 seconds to load in QGIS although I think it should only use the third layer with only 20 000 features. Individually the third layer took under one second to load. With generic style modified with similar scale ranges. Results were faster as it took under 3 seconds to load the layer group but individually layer 3 took only 0.5 to 1 second to load. With very simple style it still uses a lot time to do something. Has anyone else noticed similar results? GeoServer version 2.25.1. Pekka Lampinen GIS Developer
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