[mapserver-users] GDal Mini drivers and php script under IIS 7 on Windows Server 2008

Mon May 11 15:46:00 PDT 2015

I think I have isolated the problem to GDAL.  When I just try running a gdal_translate, it fails to create the output file.  Here is what happens from the command prompt:

C:\MapData>gdal_translate -of JPEG -outsize 512 512 land-sea.xml test.jpg
Input file size is 20480, 10240
0ERROR 1: GDALWMS: Unable to download block 0, 0.
  URL: http://localhost/mapserver/content/tile.php?T=Land-Sea&L=0&X=0&Y=4
  HTTP status code: 200, error: (null).
ERROR 1: land-sea.xml, band 1: IReadBlock failed at X offset 0, Y offset 0

I'm not sure how to solve this.  I would think it is a permissions problem, but maybe a missing environment variable or something?  At least I do have a working system at home to help troubleshoot this.  Any help would be appreciated.
Thanks,
James

-----Original Message-----
From: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of EVANS, JAMES R GS-13 USAF ACC 84 RADES/SCZE
Sent: Monday, May 11, 2015 12:02 PM
To: mapserver-users at lists.osgeo.org
Subject: Re: [mapserver-users] GDal Mini drivers and php script under IIS 7 on Windows Server 2008

Still no resolution to this issue.  I gave the DefaultAppPool user Full Control over the MapData directory.  No help.  I then set Full Control of MapData to "Everyone".   Still no help.  I did figure out that Windows Server 2008 R2 doesn't come with the MS C++ Redistributables by default.  I installed those and now I can run the PHP script from the command line.  I still can't make URL request to the mapserver  requesting anything from the GDAL WW Minidriver though.  Below are the IIS log and Mapserver log entry.  Any additional suggestions on how to troubleshoot this would be greatly appreciated.

 Here are the logs from IIS:

2015-05-11 16:36:44 10.89.89.44 GET /mapserver/mapserv.exe map=content/servemap.map&service=WMS&request=GetMap&version=1.3&crs=CRS:84&layers=WAC_2014&styles=default&transparent=TRUE&format=image/png&width=512&height=512&bbox=72.0,22.5,74.25,24.75 80 - 10.89.89.74 Java/1.7.0_51 200 0 0 62
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=223&Y=101 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=224&Y=101 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=225&Y=101 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=226&Y=101 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=223&Y=100 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=224&Y=100 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=225&Y=100 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=226&Y=100 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=223&Y=99 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=224&Y=99 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=225&Y=99 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0
2015-05-11 16:36:44 127.0.0.1 GET /mapserver/content/tile.php T=WAC_2014&L=5&X=226&Y=99 80 - 127.0.0.1 GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 403 1 5 0

Here's what happens in the Mapserver Log:

[Mon May 11 10:36:44 2015].62000 msDrawRasterLayerLow(WAC_2014): entering.
[Mon May 11 10:36:44 2015].62000 msDrawRasterLayerLow(WAC_2014): Filename is: c:\MapData\WAC_2014.xml [Mon May 11 10:36:44 2015].62000 msDrawRasterLayerLow(WAC_2014): Path is: c:\MapData\WAC_2014.xml [Mon May 11 10:36:44 2015].62000 msResampleGDALToMap in effect: cellsize = 0.002197 [Mon May 11 10:36:44 2015].62000 msDrawGDAL(WAC_2014): using RAW_WINDOW=114687 29695 1026 1026, dst=0,0,1026,1026 [Mon May 11 10:36:44 2015].62000 msDrawRasterLayerGDAL(): red,green,blue,alpha bands = 1,2,3,0 [Mon May 11 10:36:44 2015].78000 drawGDAL(): Unable to access file. GDALDatasetRasterIO() failed: GetBlockRef failed at X block offset 223, Y block offset 57 [Mon May 11 10:36:44 2015].78000 msDrawMap(): Image handling error. Failed to draw layer named 'WAC_2014'.
[Mon May 11 10:36:44 2015].78000 freeLayer(): freeing layer at 000000000043D5C0.

-----Original Message-----
From: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of geographika
Sent: Thursday, May 07, 2015 2:02 PM
To: mapserver-users at lists.osgeo.org
Subject: Re: [mapserver-users] GDal Mini drivers and php script under IIS 7 on Windows Server 2008

Hi,

Definitely looks like a permissions issue.
Try granting read-access on the c:\MapData folder to "IIS AppPool\DefaultAppPool" user - assuming this is the application pool that MapServer and/or PHP is running under using CGI.
If that fails try granting "Everyone" read-only access to see if it is permissions.

Regards,

Seth

On 07/05/2015 20:41, EVANS, JAMES R GS-13 USAF ACC 84 RADES/SCZE wrote:
> I am making no progress on getting this working.  I did add the error_reporting(E_All) to the script, but I don't get any errors.  From the IIS log, it looks like the server is getting the request, php must be reading the script and calling the mini driver.  It looks like the gdal mini driver is trying to read the base imagery and is failing.  Here is a piece of the IIS log:
>
>   
> 2015-05-07 17:06:33 10.89.89.44 GET /mapserver/mapserv.exe 
> map=content/servemap.map&service=WMS&request=GetMap&version=1.3&crs=CR
> S:84&layers=Land_Sea&styles=default&transparent=TRUE&format=image/png&
> width=512&height=512&bbox=-72.0,18.0,-36.0,54.0 80 - 10.89.89.191
> Java/1.7.0_51 200 0 0 1875
> 2015-05-07 17:06:33 127.0.0.1 GET /mapserver/content/tile.php
> T=Land-Sea&L=1&X=7&Y=6 80 - 127.0.0.1
> GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 500 0 2147500037 0
> 2015-05-07 17:06:33 127.0.0.1 GET /mapserver/content/tile.php
> T=Land-Sea&L=1&X=6&Y=6 80 - 127.0.0.1
> GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 500 0 3221225595
> 718
> 2015-05-07 17:06:33 127.0.0.1 GET /mapserver/content/tile.php
> T=Land-Sea&L=1&X=8&Y=6 80 - 127.0.0.1
> GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 500 0 2147500037 0
> 2015-05-07 17:06:33 127.0.0.1 GET /mapserver/content/tile.php
> T=Land-Sea&L=1&X=6&Y=5 80 - 127.0.0.1
> GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 500 0 2147500037 0
> 2015-05-07 17:06:33 127.0.0.1 GET /mapserver/content/tile.php
> T=Land-Sea&L=1&X=7&Y=5 80 - 127.0.0.1
> GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 500 0 2147500037 0
> 2015-05-07 17:06:33 127.0.0.1 GET /mapserver/content/tile.php
> T=Land-Sea&L=1&X=8&Y=5 80 - 127.0.0.1
> GDAL+WMS+driver+(http://www.gdal.org/frmt_wms.html) 500 0 2147500037
> 15
>
> If I try to send the URL from a browser, I get back an error that says this:
>
> <?xml version='1.0' encoding="ISO-8859-1" standalone="no" ?> <!DOCTYPE 
> ServiceExceptionReport SYSTEM 
> "http://schemas.opengis.net/wms/1.1.1/exception_1_1_1.dtd">
> <ServiceExceptionReport version="1.1.1"> <ServiceException>
> msDrawMap(): Image handling error. Failed to draw layer named 'Land_Sea'.
> drawGDAL(): Unable to access file. GDALDatasetRasterIO() failed: 
> c:\MapData\Land-Sea.xml, band 1: IReadBlock failed at X offset 9, Y 
> offset 4 </ServiceException> </ServiceExceptionReport>
>
> I really don't know how to troubleshoot this.  The pieces I have to work with are the map file, the layer XML files, for example Land-Sea.xml, the Tile.php script, (which seems to be working), and the tiled image set.  These same pieces work great with the same version of Mapserver, from GISInternals, on Windows 7 running IIS 7.  I'm thinking that this must be a permissions problem on Windows Server 2008.  Any ideas on where to go from here would be appreciated.
> Thanks,
> James
>
>
> -----Original Message-----
> From: mapserver-users-bounces at lists.osgeo.org
> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Jeff 
> McKenna
> Sent: Thursday, May 07, 2015 5:48 AM
> To: mapserver-users at lists.osgeo.org
> Subject: Re: [mapserver-users] GDal Mini drivers and php script under 
> IIS 7 on Windows Server 2008
>
>
> I would definitely head to the command prompt on the Windows machine, and then call php.exe through the commandline, passing it your .php file that is supposed to generate your map image, such as:
>
>     php myscript.php
>
> You might also make sure that your test php script shows all errors (I think it can be set directly inside your script with:
> error_reporting(E_ALL)  but I might be wrong on syntax...
>
> -jeff
>
> --
> Jeff McKenna
> MapServer Consulting and Training Services 
> http://www.gatewaygeomatics.com/
>
>
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