I have a few polygon layers in GeoServer (vs. 2.22.2) that are returning empty (or blank) images from WMS GetMap requests.
I have checked to make sure there is data there, WFS (GeoJSON) requests do return features. I have also tested the styling by swapping out the generic GeoServer polygon styling; it works on other layers, but not on the ones in question.
How can I debug this issue?
Relevant portion from the log (log level set at GEOTOOLS_DEVELOPER_LOGGING):
11 Jul 20:51:49 INFO [geoserver.wms] -
Request: getServiceInfo
11 Jul 20:51:49 DEBUG [data.util] - CRSConverterFactory can be applied from Strings to CRS only.
11 Jul 20:51:49 DEBUG [data.util] - InterpolationConverterFactory can be applied from Strings to Interpolation only.
11 Jul 20:51:49 DEBUG [data.util] - CRSConverterFactory can be applied from Strings to CRS only.
11 Jul 20:51:49 DEBUG [data.util] - InterpolationConverterFactory can be applied from Strings to Interpolation only.
11 Jul 20:51:49 INFO [geoserver.flow] - Request [WMS 1.1.0 GetMap] starting, processing through flow controllers
11 Jul 20:51:49 INFO [geoserver.flow] - Request control-flow performed, running requests: 1, blocked requests: 0
11 Jul 20:51:49 DEBUG [renderer.lite] - Computed scale denominator: 3052951.8844757625
11 Jul 20:51:49 DEBUG [renderer.lite] - creating rules for scale denominator - 3,052,951.884
11 Jul 20:51:49 DEBUG [data.util] - CRSConverterFactory can be applied from Strings to CRS only.
11 Jul 20:51:49 DEBUG [data.util] - InterpolationConverterFactory can be applied from Strings to Interpolation only.
11 Jul 20:51:49 DEBUG [renderer.lite] - Processing 1 stylers for http://nrri-atlas.d.umn.edu/geoserver/nra:census_tract_proj
11 Jul 20:51:49 DEBUG [renderer.lite] - Expanding rendering area by 2 pixels to consider stroke width
11 Jul 20:51:49 DEBUG [renderer.lite] - Querying layer http://nrri-atlas.d.umn.edu/geoserver/nra:census_tract_proj with bbox: ReferencedEnvelope[188068.53674469356 : 763366.7898553064, 4814588.794830209 : 5474122.780969791] DefaultProjectedCRS[EPSG:NAD83 / UTM zone 15N] AXIS["Easting", EAST] AXIS["Northing", NORTH]
11 Jul 20:51:49 DEBUG [geotools.jdbc] - CREATE CONNECTION
11 Jul 20:51:49 TRACE [data.jdbc] - exporting PropertyName
11 Jul 20:51:49 TRACE [data.jdbc] - exporting LiteralExpression
11 Jul 20:51:49 DEBUG [data.util] - CRSConverterFactory can be applied from Strings to CRS only.
11 Jul 20:51:49 DEBUG [data.util] - InterpolationConverterFactory can be applied from Strings to Interpolation only.
11 Jul 20:51:49 DEBUG [geotools.jdbc] - SELECT "ogc_fid",encode(ST_AsTWKB(ST_Simplify(ST_Force2D("geom"), 683.4549079164863, true),-2), 'base64') as "geom" FROM "census_tract_proj" WHERE "geom" && ST_GeomFromText('POLYGON ((188068.53674469356 4814588.794830209, 188068.53674469356 5474122.780969791, 763366.7898553064 5474122.780969791, 763366.7898553064 4814588.794830209, 188068.53674469356 4814588.794830209))', 4269)
11 Jul 20:51:49 DEBUG [geotools.jdbc] - CLOSE CONNECTION
11 Jul 20:51:49 DEBUG [renderer.label] - TOTAL LINE LABELS : 0
11 Jul 20:51:49 DEBUG [renderer.label] - PAINTED LINE LABELS : 0
11 Jul 20:51:49 DEBUG [renderer.label] - REMAINING LINE LABELS : 0
11 Jul 20:51:49 DEBUG [renderer.lite] - Style cache hit ratio: NaN , hits 0, requests 0
11 Jul 20:51:49 INFO [geoserver.wms] -
Request: getMap
Angle = 0.0
BaseUrl = https://nrri-atlas.d.umn.edu/geoserver/
Bbox = SRSEnvelope[189778.1898 : 761657.1368, 4816297.4321 : 5472414.1437]
BgColor = java.awt.Color[r=255,g=255,b=255]
Buffer = 0
Clip = null
CQLFilter = null
Crs = PROJCS["NAD83 / UTM zone 15N",
GEOGCS["NAD83",
DATUM["North American Datum 1983",
SPHEROID["GRS 1980", 6378137.0, 298.257222101, AUTHORITY["EPSG","7019"]],
TOWGS84[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
AUTHORITY["EPSG","6269"]],
PRIMEM["Greenwich", 0.0, AUTHORITY["EPSG","8901"]],
UNIT["degree", 0.017453292519943295],
AXIS["Geodetic longitude", EAST],
AXIS["Geodetic latitude", NORTH],
AUTHORITY["EPSG","4269"]],
PROJECTION["Transverse_Mercator", AUTHORITY["EPSG","9807"]],
PARAMETER["central_meridian", -93.0],
PARAMETER["latitude_of_origin", 0.0],
PARAMETER["scale_factor", 0.9996],
PARAMETER["false_easting", 500000.0],
PARAMETER["false_northing", 0.0],
UNIT["m", 1.0],
AXIS["Easting", EAST],
AXIS["Northing", NORTH],
AUTHORITY["EPSG","26915"]]
Elevation = []
Env = {}
Exceptions = SE_XML
FeatureId = null
FeatureVersion = null
Filter = null
Format = image/png
FormatOptions = {}
Get = true
Height = 768
Interpolations = []
Layers = [org.geoserver.wms.MapLayerInfo@96f95a9f]
MaxFeatures = null
Palette = null
RawKvp = {REQUEST=GetMap, SRS=EPSG:26915, FORMAT=image/png, BBOX=189778.1898,4816297.4321,761657.1368,5472414.1437, VERSION=1.1.0, STYLES=polygon, SERVICE=WMS, WIDTH=669, HEIGHT=768, LAYERS=nra:census_tract_proj}
RemoteOwsType = null
RemoteOwsURL = null
Request = GetMap
RequestCharset = UTF-8
ScaleMethod = null
Sld = null
SldBody = null
SldVersion = null
SortBy = null
SortByArrays = null
SRS = EPSG:26915
StartIndex = null
StyleBody = null
StyleFormat = sld
Styles = [StyleImpl[ name=polygon]]
StyleUrl = null
StyleVersion = null
Tiled = false
TilesOrigin = null
Time = []
Transparent = false
ValidateSchema = false
Version = 1.1.0
ViewParams = null
Width = 669
11 Jul 20:51:49 INFO [geoserver.flow] - releasing flow controllers for [WMS 1.1.0 GetMap]
11 Jul 20:51:49 INFO [geoserver.flow] - Request completed, running requests: 0, blocked requests: 0
Here is the generic polygon SLD used:
<?xml version="1.0" encoding="ISO-8859-1"?>
<StyledLayerDescriptor version="1.0.0"
xsi:schemaLocation="http://www.opengis.net/sld StyledLayerDescriptor.xsd"
xmlns="http://www.opengis.net/sld"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<!-- a named layer is the basic building block of an sld document -->
<NamedLayer>
<Name>Default Polygon</Name>
<UserStyle>
<!-- they have names, titles and abstracts -->
<Title>Grey Polygon</Title>
<Abstract>A sample style that just prints out a grey interior with a black outline</Abstract>
<!-- FeatureTypeStyles describe how to render different features -->
<!-- a feature type for polygons -->
<FeatureTypeStyle>
<!--FeatureTypeName>Feature</FeatureTypeName-->
<Rule>
<Name>Rule 1</Name>
<Title>Grey Fill and Black Outline</Title>
<Abstract>Grey fill with a black outline 1 pixel in width</Abstract>
<!-- like a linesymbolizer but with a fill too -->
<PolygonSymbolizer>
<Fill>
<CssParameter name="fill">#AAAAAA</CssParameter>
</Fill>
<Stroke>
<CssParameter name="stroke">#000000</CssParameter>
<CssParameter name="stroke-width">1</CssParameter>
</Stroke>
</PolygonSymbolizer>
</Rule>
</FeatureTypeStyle>
</UserStyle>
</NamedLayer>
</StyledLayerDescriptor>
