I am trying to perform a WFS getFeature request with a newly compiled version of MapServer 6.0.1. It is failing with a segmentation fault and the failure is related to SDE somehow but I'm not sure how to proceed.
It's possible the thread http://osgeo-org.1803224.n2.nabble.com/ArcSDE-9-3-1-QUERYMAP-QUERY-or-GETFEATUREINFO-not-workin-Mapserver-6-td6600091.html is describing a similar problem, but the current suggested 'fix' post suggests this is not the case. Since the original reporter has not responded, I can't be sure if his problem is now addressed and is, therefore, a different problem. It could just be a red herring. Ultimately, at this moment, I'm stuck re: how to proceed and any information or pointers to get me moving again would be appreciated. Details of my problem follow. cheers, jtm Background: I have a simple Mapfile that supports WFS requests (the GetCapabilities response provides no warnings or errors): MAP NAME "mySubMap" FONTSET "../../../mapserv/etc/fonts.txt" SYMBOLSET "../../../mapserv/etc/symbols.sym" SIZE 800 600 IMAGETYPE PNG IMAGECOLOR 255 255 255 EXTENT -2903297.697389 -789911.662978 3431059.382789 3959683.443689 UNITS METERS PROJECTION "init=epsg:42304" END WEB IMAGEPATH "/<path>/httpd/htdocs/ogc_tmp/" IMAGEURL "/ogc_tmp/" METADATA "ows_title" "joanne_sde.map" "ows_onlineresource" "http://<domain>/ogc/joanne_sde" "ows_enable_request" "*" END #end METADATA END #end WEB OUTPUTFORMAT NAME 'AGG' DRIVER AGG/PNG MIMETYPE "image/png" IMAGEMODE RGB EXTENSION "png" END #end OUTPUTFORMAT LAYER NAME 'Roads25M' TYPE LINE STATUS ON CONNECTION "host,port,sde,username,password" CONNECTIONTYPE SDE DATA 'XDM_XDATA.TRN_NSF_ROAD_V6_CT25M_R2,SHAPE,SDE.DEFAULT' METADATA "ows_title" "Roads Title" "gml_featureid" "OBJECTID" "gml_include_items" "all" END #end METADATA DUMP true CLASS STYLE COLOR 0 0 0 END #end STYLE END #end CLASS END #end LAYER END #end MAP When I try to do a getFeature request, it fails with an Internal Server Error: http://<domain>/ogc/joanne_sde?typename=Roads25M&maxfeatures=2&service=wfs&version=1.0.0&request=getfeature Looking at the error log, I see: [Tue Jul 19 16:06:23 2011] [error] [client 10.117.21.141] /server/nl18/httpd/cgi-bin/joanne_sde: line 4: 24316 Segmentation fault ${MS_CGIBIN}mapserv [Tue Jul 19 16:06:23 2011] [error] [client 10.117.21.141] Premature end of script headers: joanne_sde This is similar to that discussed at: http://osgeo-org.1803224.n2.nabble.com/Upgrade-MapServer-from-5-4-to-6-0-td6563752.html. So, taking the suggestion of Daniel Morisette in that post, I have used gdb to try to find the source of the segmentation fault. It tells me the segmentation fault is occurring at: Program received signal SIGSEGV, Segmentation fault. 0x08157116 in msSDELayerFreeItemInfo (layer=0x8218a90) at mapsde.c:2117 2117 mapsde.c: No such file or directory. in mapsde.c (gdb) bt #0 0x08157116 in msSDELayerFreeItemInfo (layer=0x8218a90) at mapsde.c:2117 #1 0x080af586 in msLayerFreeItemInfo (layer=0x8218a90) at maplayer.c:68 #2 0x080af8b4 in msLayerClose (layer=0x8218a90) at maplayer.c:210 #3 0x08096685 in msQueryByRect (map=0x82112e0) at mapquery.c:1024 #4 0x080df889 in msWFSGetFeature (map=0x82112e0, paramsObj=0x821f510, req=0x8210ca8, ows_request=0xbfffe46c) at mapwfs.c:2500 #5 0x080e098f in msWFSDispatch (map=0x82112e0, requestobj=0x8210ca8, ows_request=0xbfffe46c, force_wfs_mode=0) at mapwfs.c:2917 #6 0x080d4622 in msOWSDispatch (map=0x82112e0, request=0x8210ca8, ows_mode=-1) at mapows.c:92 #7 0x0805a2d6 in main (argc=2, argv=0xbfffea94) at mapserv.c:1241 The code in question is "(if (sde->basedefs))" in msSDELayerFreeItemInfo; however, I think the problem is actually because the layer->layerinfo is corrupt or null or something. void msSDELayerFreeItemInfo(layerObj *layer) { #ifdef USE_SDE msSDELayerInfo *sde = NULL; int i; if (!msSDELayerIsOpen(layer)) { msSetError( MS_SDEERR, "SDE layer has not been opened.", "msSDELayerFreeItemInfo()"); } sde = layer->layerinfo; /* this is line 2116 */ if (sde->basedefs) { /* this is line 2117 */ SE_table_free_descriptions(sde->basedefs); : If I change the data in the Mapfile to use a Shapefile instead of SDE, the getFeature request works. So, the problem is quite definately related to working with SDE. However, the SDE log suggests the query took place and returned successfully. The SDE version we are working with is 9.2; and the 9.2 ArcSDE libraries are being used to compile. I have also tried this same thing using a compilation of MapServer 5.4 in this same environment and it works. Any ideas what else I might look at to give me an idea of what I need to fix? -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Can-t-WFS-getFeature-w-MapServer-6-0-1-tp6600286p6600286.html Sent from the Mapserver - User mailing list archive at Nabble.com. _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
