I'm wondering if this is related to apache 2.4 and the way it is setting up cgi-bin processes. What is the best practice for configuring apache 2.4 (things changed in apache 2.4 from 2.2) cgi for use with mapserver?
I'm running Ubuntu 14.04 LTS and have these packages installed: apache2:amd64/trusty-security 2.4.7-1ubuntu4.4 uptodate apache2-bin:amd64/trusty-security 2.4.7-1ubuntu4.4 uptodate apache2-data:all/trusty-security 2.4.7-1ubuntu4.4 uptodate apache2-mpm-prefork:amd64/trusty-security 2.4.7-1ubuntu4.4 uptodate apache2-utils:amd64/trusty-security 2.4.7-1ubuntu4.4 uptodate libapache2-mod-geoip:amd64/trusty 1.2.8-2 uptodate libapache2-mod-mapcache:amd64/trusty 1.2.1-2 uptodate libapache2-mod-php5:amd64/trusty-security 5.5.9+dfsg-1ubuntu4.11 uptodate libapache2-mod-python:amd64/trusty 3.3.1-11ubuntu2 uptodate cgi-mapserver:amd64/trusty 6.4.1-2 uptodate libmapserver1:amd64/trusty 6.4.1-2 uptodate mapserver-bin:amd64/trusty 6.4.1-2 uptodate ls /etc/apache2/mods-enabled/ access_compat.load autoindex.load geoip.load php5.conf alias.load cgi.load mapcache.conf php5.load auth_basic.load deflate.conf mapcache.load python.load authn_core.load deflate.load mime.conf setenvif.conf authn_file.load dir.conf mime.load setenvif.load authz_core.load dir.load mpm_prefork.conf status.conf authz_host.load env.load mpm_prefork.load status.load authz_user.load filter.load negotiation.conf autoindex.conf geoip.conf negotiation.load On 7/13/2015 11:48 AM, Stephen Woodbridge wrote:
SOLVED: see below ... According to the docs, the defaults are: TOLERANCE 3 TOLERANCEUNITS pixels and with: QUERY_STRING='map=/maps/wms/bathymetry.map&mode=query&layers=model_query&mapxy=-100.98125+41.58125' How is zoom calculated? LAYER NAME "model_query" STATUS on TYPE raster TILEINDEX "NOAA_Coastal_Relief_Model/index.shp" TILEITEM "LOCATION" CLASS TEMPLATE "/maps/wms/pixel.value.html" END END Did this behavior change from 6.2.1 to 6.4.1? because it is not noted in the MIGRATION-GUIDE if it did. On 6.2.1 I get the following result: Content-Type: text/html <HTML <HEAD><TITLE>MapServer Message</TITLE></HEAD <!-- MapServer version 6.2.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG SUPPORTS=PROJ SUPPORTS=GD SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=CAIRO SUPPORTS=SVG_SYMBOLS SUPPORTS=ICONV SUPPORTS=FRIBIDI SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER SUPPORTS=FASTCGI SUPPORTS=THREADS SUPPORTS=GEOS INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE --> <BODY BGCOLOR="#FFFFFF" msQueryByPoint(): Search returned no results. No matching record(s) found. </BODY></HTML> which returns very quickly. I rsynced the data and the mapfile for Ubuntu 12.04 to 14.04 and installed the mapserver package. Everything else appears to be working without a problem except this issue. SOLVED: I explicitly added: TOLERANCE 1 TOLERANCEUNITS pixels to my LAYER definition and now it works. d# /usr/lib/cgi-bin/mapserv QUERY_STRING='map=/maps/wms/bathymetry.map&mode=query&layers=model_query&mapxy=-100.98125+41.58125' Content-Type: text/html <HTML> <HEAD><TITLE>MapServer Message</TITLE></HEAD> <!-- MapServer version 6.4.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=KML SUPPORTS=PROJ SUPPORTS=GD SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=CAIRO SUPPORTS=SVG_SYMBOLS SUPPORTS=RSVG SUPPORTS=ICONV SUPPORTS=FRIBIDI SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER SUPPORTS=FASTCGI SUPPORTS=THREADS SUPPORTS=GEOS INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE --> <BODY BGCOLOR="#FFFFFF"> msQueryByPoint(): Search returned no results. No matching record(s) found. </BODY></HTML> So it looks like maybe the defaults are not getting initialized. Opened: https://github.com/mapserver/mapserver/issues/5120 Thanks, -Steve On 7/13/2015 11:05 AM, thomas bonfort wrote:Or that could just be the number of pixels under the query point if you are zoomed out far or with a large tolerance... On 13 July 2015 at 17:01, Stephen Woodbridge <[email protected]> wrote:Thomas, More information: /u/software/mapserver-rel-6-4-2/maptemplate.c:4366 4366 for(j=0; j<lp->resultcache->numresults; j++) { (gdb) p lp->resultcache->numresults $7 = 2884991 this is clearly a bad value my guess is that it is not getting initialized to zero and assumes it will get set when some number of results are found, but if no results are found it is not getting set to zero. (Just a hypothesis) -Steve W On 7/13/2015 10:41 AM, Stephen Woodbridge wrote:Thomas, Here is the initial backtrace afte starting it and and ^C while it is printing -99999 lines: #0 processLine (mapserv=0x609050, instr=0x7fffffffcc60 "[value_0]\n", stream=0x688460, mode=9) at /u/software/mapserver-rel-6-4-2/maptemplate.c:3697 #1 0x00007ffff7a2e9cc in msReturnPage (mapserv=0x609050, html=0x6612e0 "/maps/wms/pixel.value.html", mode=9, papszBuffer=0x0) at /u/software/mapserver-rel-6-4-2/maptemplate.c:4159 #2 0x00007ffff7a2f7ed in msReturnNestedTemplateQuery (mapserv=0x609050, pszMimeType=0x60c8f0 "text/html", papszBuffer=0x0) at /u/software/mapserver-rel-6-4-2/maptemplate.c:4385 #3 0x00007ffff7a1f586 in msReturnTemplateQuery (mapserv=0x609050, queryFormat=0x60c8f0 "text/html", papszBuffer=0x0) at /u/software/mapserver-rel-6-4-2/maptemplate.c:315 #4 0x00007ffff79f1230 in msCGIDispatchQueryRequest (mapserv=0x609050) at /u/software/mapserver-rel-6-4-2/mapservutil.c:1476 #5 0x00007ffff79f2205 in msCGIDispatchRequest (mapserv=0x609050) at /u/software/mapserver-rel-6-4-2/mapservutil.c:1784 #6 0x000000000040115b in main (argc=2, argv=0x7fffffffdf98) at /u/software/mapserver-rel-6-4-2/mapserv.c:259 I'll poke around a little more in gdb and see if I can figure out anything more. Thanks, -Steve On 7/13/2015 4:12 AM, thomas bonfort wrote:Steve, please include a backtrace from gdb where you believe the infinite loop is happening. -- thomas On 13 July 2015 at 01:22, Stephen Woodbridge <[email protected]> wrote:I added gdalinfo on an actual raster file below. It turns out the -99999 is the NoData Value. I would be happy to just get this value back (once), but I think something is broken and putting mapserver into an infinite loop. -Steve W On 7/12/2015 7:14 PM, Stephen Woodbridge wrote:Hi all, I have run into a very strange problem doing a mapserver query. I'm upgrading a system that was running fine. The details are below. I also tried to put the template inside a CLASS ... END block that didn't help. Can anyone else reproduce something like this? Got any ideas on how to work around it? Thanks, -Steve W Old system: Ubuntu 12.04 LTS MapServer version 6.2.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG SUPPORTS=PROJ SUPPORTS=GD SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=CAIRO SUPPORTS=SVG_SYMBOLS SUPPORTS=ICONV SUPPORTS=FRIBIDI SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER SUPPORTS=FASTCGI SUPPORTS=THREADS SUPPORTS=GEOS INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE New system: Ubuntu 14.04 LTS MapServer version 6.4.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=KML SUPPORTS=PROJ SUPPORTS=GD SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=CAIRO SUPPORTS=SVG_SYMBOLS SUPPORTS=RSVG SUPPORTS=ICONV SUPPORTS=FRIBIDI SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER SUPPORTS=FASTCGI SUPPORTS=THREADS SUPPORTS=GEOS INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE The query layer looks like this: LAYER NAME "model_query" STATUS on TYPE raster TILEINDEX "NOAA_Coastal_Relief_Model/index.shp" TILEITEM "LOCATION" TEMPLATE "/maps/wms/pixel.value.html" END cat "/maps/wms/pixel.value.html" <!-- MapServer Template --> [value_0] dbf_dump -info wms/data/Bathy/NOAA_Coastal_Relief_Model/index.dbf Filename: wms/data/Bathy/NOAA_Coastal_Relief_Model/index.dbf Version: 0x03 (ver. 3) Num of records: 61 Header length: 65 Record length: 256 Last change: 1995/7/26 Num fields: 1 Field info: Num Name Type Len Decimal 1. LOCATION C 255 0 dbf_dump wms/data/Bathy/NOAA_Coastal_Relief_Model/index.dbf | head NOAA_Coastal_Relief_Model/BSM-1035.tif NOAA_Coastal_Relief_Model/BSM-1156.tif NOAA_Coastal_Relief_Model/BSM-1193.tif NOAA_Coastal_Relief_Model/BSM-1239.tif NOAA_Coastal_Relief_Model/BSM-1261.tif NOAA_Coastal_Relief_Model/BSM-1326.tif NOAA_Coastal_Relief_Model/BSM-1343.tif NOAA_Coastal_Relief_Model/BSM-1536.tif NOAA_Coastal_Relief_Model/BSM-1557.tif NOAA_Coastal_Relief_Model/BSM-1801.tif ogrinfo -so wms/data/Bathy/NOAA_Coastal_Relief_Model/index.shp index INFO: Open of `wms/data/Bathy/NOAA_Coastal_Relief_Model/index.shp' using driver `ESRI Shapefile' successful. Layer name: index Geometry: Polygon Feature Count: 61 Extent: (-130.000417, 16.999583) - (-65.999599, 49.000401) Layer SRS WKT: (unknown) location: String (255.0) When I issue a query like: /usr/lib/cgi-bin/mapserv QUERY_STRING='map=/maps/wms/bathymetry.map&mode=query&layers=model_query&mapxy=-100.98125+41.58125' The old server responded with: Content-Type: text/html <HTML> <HEAD><TITLE>MapServer Message</TITLE></HEAD> <!-- MapServer version 6.2.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG SUPPORTS=PROJ SUPPORTS=GD SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=CAIRO SUPPORTS=SVG_SYMBOLS SUPPORTS=ICONV SUPPORTS=FRIBIDI SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER SUPPORTS=FASTCGI SUPPORTS=THREADS SUPPORTS=GEOS INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE --> <BODY BGCOLOR="#FFFFFF"> msQueryByPoint(): Search returned no results. No matching record(s) found. </BODY></HTML>You have new mail in /var/mail/root I get an infinite number of lines like the following on the new server: # /usr/lib/cgi-bin/mapserv QUERY_STRING='map=/maps/wms/bathymetry.map&mode=query&layers=model_query&mapxy=-100.98125+41.58125' | head Content-Type: text/html -99999 -99999 -99999 -99999 -99999 -99999 -99999 -99999 ^C# gdalinfo wms/data/Bathy/NOAA_Coastal_Relief_Model/BSM-1156.tif Driver: GTiff/GeoTIFF Files: wms/data/Bathy/NOAA_Coastal_Relief_Model/BSM-1156.tif Size is 4801, 4801 Coordinate System is: GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]], AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich",0], UNIT["degree",0.0174532925199433], AUTHORITY["EPSG","4326"]] Origin = (-102.000833330000006,41.000817329999997) Pixel Size = (0.000833330000000,-0.000833330000000) Metadata: AREA_OR_POINT=Point Image Structure Metadata: INTERLEAVE=BAND Corner Coordinates: Upper Left (-102.0008333, 41.0008173) (102d 0' 3.00"W, 41d 0' 2.94"N) Lower Left (-102.0008333, 37.0000000) (102d 0' 3.00"W, 37d 0' 0.00"N) Upper Right ( -98.0000160, 41.0008173) ( 98d 0' 0.06"W, 41d 0' 2.94"N) Lower Right ( -98.0000160, 37.0000000) ( 98d 0' 0.06"W, 37d 0' 0.00"N) Center (-100.0004247, 39.0004087) (100d 0' 1.53"W, 39d 0' 1.47"N) Band 1 Block=256x256 Type=Float32, ColorInterp=Gray NoData Value=-99999 Overviews: 2401x2401, 1201x1201, 601x601, 301x301, 151x151, 76x76, 38x38You have to ^C to kill it, even when using head. This seems like a serious bug as it runs for about 10 mins taking 100% CPU. If you call it via file_get_contents() in php is hangs the request and freezea my OL app until it is killed or kills php reading all the data. _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users_______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users_______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users_______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
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