[mapserver-users] Very strange problem doing a query and hanging on MS 6.4.1
thomas bonfort
thomas.bonfort at gmail.com
Mon Jul 13 08:05:51 PDT 2015
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 <woodbri at swoodbridge.com> 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 <woodbri at swoodbridge.com>
>>> 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,
>>>> 38x38
>>>>
>>>>
>>>>
>>>>>
>>>>> You 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
>>>>> mapserver-users at lists.osgeo.org
>>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>>
>>>>
>>>>
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>>
>>
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