what do you need from me to further investigate? I'll be happy to provide anything I can.
Best
Lars
Am 27.05.21 um 22:03 schrieb Even
Rouault:
It might be a bug in the OGR WFS driver (I see optimizations in the code to avoid adding a BBOX if we have already fetched the layer, that could be faulty), but we'd need a full reproducer to be able to investigate.
Le 27/05/2021 à 13:59, Lars Fricke a écrit :
Dear all,
I apologize for finding and posting bits and pieces not all at one time.
I fired up 'CONFIG "CPL_DEBUG" "ON"' and there I see, that
"""
SkenData Email Signatur HTTP: Fetch(http://url-to-external-server?SERVICE=WFS&VERSION=1.1.0&MAXFEATURES=1000&REQUEST=GetFeature&TYPENAME=dop)
"""
So there is no BBOX. On other layers I see
"""
GDALOpen(/vsicurl_streaming/https:...
"""
with BBOX.
No wonder I do not get reliable results if the server is calling some 1000 whatsoever result objects and starts filtering the bbox after.
Any idea what is happening? Or is this something for a GDAL thread?
Best
Lars
Am 27.05.21 um 09:04 schrieb Jörg Thomsen (WhereGroup):
Hello Lars, maxfeatures was my first guess... have you also turned ist it off (no maxfeatures)?Jörg Am 27.05.21 um 08:51 schrieb Lars Fricke:Dear All, as this list is a source of much deeper insight than I have into Mapserver, I would like to ask about a very strange issue I am facing. I am calling on a public WFS server I can query "by hand" fast and successfully every single time. Now I defined a Mapserver layer (see below) as an OGR layer in my WFS map-file and it does - on the same call - return data. But not reliably, more at random. I played with the connection-timeout and the maxfeatures and it seemed to have some influence but again, not reliably. I'll post the relevant parts of my mapfile (all my other layers with other sources are working fine): """ MAP NAME "WFS_Test" SHAPEPATH "/data" STATUS ON UNITS METERS EXTENT -2851663 2776500 5630523 9970363 PROJECTION "init=epsg:3857" END # PROJECTION WEB FOOTER "TestServer" IMAGEPATH "/tmp/" TEMPPATH "/tmp/" IMAGEURL "/tmp/" METADATA "wfs_title" "Test" "ows_onlineresource" "http://my_server.de/cgi-bin/mapserv?map=/var/www/html/wfs.map" "ows_enable_request" "*" "ows_srs" "EPSG:3857 EPSG:4326 EPSG:25832" "wfs_srs" "EPSG:3857 EPSG:4326 EPSG:25832" "wfs_getfeature_formatlist" "jsonp,ogrgml" "wfs_encoding" "UTF-8" "wfs_connectiontimeout" "20" #"wfs_request_method" "GET" END # METADATA VALIDATION callback ".*" END END # WEB OUTPUTFORMAT NAME "jsonp" DRIVER "OGR/GEOJSON" MIMETYPE "application/json; subtype=geojson; charset=utf-8" FORMATOPTION "STORAGE=stream" FORMATOPTION "FORM=SIMPLE" FORMATOPTION "LCO:COORDINATE_PRECISION=10" FORMATOPTION "JSONP=%callback%" END OUTPUTFORMAT NAME "OGRGML" DRIVER "OGR/GML" FORMATOPTION "STORAGE=filesystem" FORMATOPTION "FORM=multipart" FORMATOPTION "FILENAME=result.gml" END SYMBOL NAME "circle_filled" TYPE ELLIPSE FILLED TRUE POINTS 1 1 END END LAYER NAME "TestLayer" CONNECTION "wfs-request-testlayer.xml" EXTENT 84710 5210905 1163008 6125425 CONNECTIONTYPE OGR STATUS ON DATA "dop" METADATA "wfs_version" "2.0.0" "wfs_title" "TestLayer_WFS" "wfs_connectiontimeout" "100" "wfs_typename" "TestLayer_WFS_int" "wfs_maxfeatures" "600" END # METADATA PROJECTION "init=epsg:25832" END # PROJECTION TYPE POLYGON CLASS NAME "aerial_image_footprint" STYLE OUTLINECOLOR 255 0 0 WIDTH 0.7 END # STYLE END # CLASS END # LAYER """ I made the xml-file wit ogrinfo as I did for many other layers that work. The call is: """ http://localhost:8181/cgi-bin/mapserv?map=/var/www/html/wfs.map& SERVICE=WFS&VERSION=2.0.0&REQUEST=GetFeature&SRSNAME=EPSG:3857&BBOX=1292610.86313433,6822730.62911591,1293128.57472490,6823169.70765144&TYPENAME=TestLayer """ If I replace the Server name with the public server, it works like a breeze (even it is 3857). The public server has: """ <DefaultCRS>urn:ogc:def:crs:EPSG:6.9:25832</DefaultCRS> <OtherSRS>urn:ogc:def:crs:EPSG:6.9:4326</OtherSRS> """ I see the following response in the browser: """ <wfs:FeatureCollection xmlns:ms="http://mapserver.gis.umn.edu/mapserver" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:wfs="http://www.opengis.net/wfs/2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://mapserver.gis.umn.edu/mapserver http://wfs/cgi-bin/mapserv?map=/var/www/html/wfs.map&SERVICE=WFS&VERSION=2.0.0&REQUEST=DescribeFeatureType&TYPENAME=DOP_AGE_DE&OUTPUTFORMAT=application%2Fgml%2Bxml%3B%20version%3D3.2 http://www.opengis.net/wfs/2.0 http://schemas.opengis.net/wfs/2.0/wfs.xsd http://www.opengis.net/gml/3.2 http://schemas.opengis.net/gml/3.2.1/gml.xsd" timeStamp="2021-05-27T06:30:38" numberMatched="0" numberReturned="0"> </wfs:FeatureCollection> """ And in the log: """ [warn] [pid 26] mod_fcgid: stderr: msQueryByRect(): Search returned no results. No matching record(s) found. [warn] [pid 26] mod_fcgid: stderr: freeLayer(): freeing layer at 0x131f120. 3169463 - 172.17.0.1 - - [27/May/2021:06:30:35 +0000] "GET /cgi-bin/mapserv?map=/var/www/html/wfs.map&SERVICE=WFS&VERSION=2.0.0&REQUEST=GetFeature&SRSNAME=EPSG:3857&BBOX=1292610.86313433,6822730.62911591,1293128.57472490,6823169.70765144&TYPENAME=TestLayer HTTP/1.1" 200 793 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36" 330 - 172.17.0.1 - - [27/May/2021:06:30:38 +0000] "GET /favicon.ico HTTP/1.1" 200 414 "http://localhost:8181/cgi-bin/mapserv?map=/var/www/html/wfs.map&SERVICE=WFS&VERSION=2.0.0&REQUEST=GetFeature&SRSNAME=EPSG:3857&BBOX=1292610.86313433,6822730.62911591,1293128.57472490,6823169.70765144&TYPENAME=TestLayer" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36" """ I will be grateful for any clue on what is going on. Thank you for your trouble! Best Lars SkenData Email Signatur _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/mapserver-usersViele Grüße, Jörg Thomsen
_______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/mapserver-users-- http://www.spatialys.com My software is free, but my time generally not.
_______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/mapserver-users