[mapserver-users] Can't get capabilities xml error message

Thu Nov 24 00:31:42 PST 2016

thanks for advice. WMS is back again, at last !

2016-11-23 16:55 GMT+01:00 Jeff McKenna <jmckenna at gatewaygeomatics.com>:

> Another step in my debugging is always, for problem database layers, is to
> add an EXTENT parameter inside that same layer (which you get from an
> ogrinfo command).
>
> Also, if everything works (commandline, manual requests in browser), then
> I always use a tool like Fiddler to get the exact (problem) request that is
> being generated by QGIS.
>
> Anyway, thanks again for using MS4W for sharing your spatial information.
> Be sure to contact me and help support MS4W, as I see that it is very
> important for your needs.
>
> Thanks again,
>
> -jeff
>
>
>
> --
> Jeff McKenna
> MapServer Consulting and Training Services
> http://www.gatewaygeomatics.com/
>
>
>
>
> On 2016-11-23 11:48 AM, mathias cunault wrote:
>
>> I did what you said : I copy and paste layer by layer from the old
>> mapfile to a new one, and test each time. I did not make any
>> modification (as far as i know). Now I can get the capabilities in FF !
>> Thanks.
>>
>> Now I have the list of layers in QGIS. But I can't load them : it seems
>> to have a problem of connection with PostGIS. Log error says :
>> Error executing SQL: (connection pointer is NULL
>> ) in msPostGISLayerGetExtent()[Wed Nov 23 16:33:27 2016].216000
>> msPostGISLayerGetExtent(): General error message. Error executing SQL.
>> Check server logs.
>> I guess that the logs in the message are PostGIS ones ?
>>
>>
>> 2016-11-23 15:10 GMT+01:00 Jeff McKenna <jmckenna at gatewaygeomatics.com
>> <mailto:jmckenna at gatewaygeomatics.com>>:
>>
>>     In that tiny mapfile (one layer), I would also remove any special
>>     characters and numbers from any of your strings in that small
>>     mapfile (so no accents, numbers, spaces in any NAME parameters, and
>>     remove any special characters from the wms_title metadata or
>>     elsewhere).  Working with that copied mapfile and removing all those
>>     things helps me debug always - then later I can go back to the full
>>     mapfile, get that working at the commandline, then test with a
>>     manual request in the browser, and finally test in a client such as
>>     QGIS or OpenLayers.
>>
>>     -jeff
>>
>>
>>
>>     --
>>     Jeff McKenna
>>     MapServer Consulting and Training Services
>>     http://www.gatewaygeomatics.com/ <http://www.gatewaygeomatics.com/>
>>
>>
>>
>>
>>     On 2016-11-23 9:48 AM, Jeff McKenna wrote:
>>
>>         Hi,
>>
>>         Regarding your issue, here is my advice for how I always debug
>>         such a
>>         situation:
>>
>>         - I narrow down the mapfile until I am able to have the
>>         smallest/shortest mapfile that still generates the error (one
>> layer,
>>         simple classification)
>>
>>         - once I have that tiny mapfile, then examine that one problem
>> layer
>>         (most times I also change the data in that layer, from something
>>         like a
>>         PostGIS connection to a local shapefile, and see if that changes
>>         anything)
>>
>>         - for OGC/WMS requests, I will run the request directly from the
>>         MS4W
>>         commandline, such as:
>>
>>            setenv.bat
>>            mapserv -nh
>>         QUERY_STRING="map=D:\ms4w\blah.map&SERVICE=wms&REQUEST=GetCa
>> pabilities"
>>
>>             getcap.xml
>>
>>
>>         And open that generated xml file to check for any errors or
>>         "WARNING"s
>>         in the response.
>>
>>         Thank you for the positive feedback from you that MS4W is
>>         working great
>>         for you and your clients.
>>
>>         -jeff
>>
>>
>>
>>
>>
>>     _______________________________________________
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>>     <http://lists.osgeo.org/mailman/listinfo/mapserver-users>
>>
>>
>>
>>
>> --
>> /----------/
>> /Mathias Cunault/
>> /chargé d’opération et de recherche
>> ///Inrap Tours - /148 av. Maginot
>> 37000 TOURS
>> 06 32 05 98 96
>> _mathias.cunault at inrap.fr <mailto:mathias.cunault at inrap.fr>_/
>> www.inrap.fr <http://www.inrap.fr>
>> abonnez-vous à la lettre d'information de l'Inrap :
>> http://www.inrap.fr/newsletter.php
>>
>> Darth Mathias : "Topology is a pathway to many abilities some consider
>> to be unnatural"
>> Padwan : "Is it possible to learn this power ?"
>> Darth Mathias : "Not from an archaeologist !"
>>
>
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-- 
*----------*
*Mathias Cunault*

*chargé d’opération et de recherche*

*Inrap Tours - 148 av. Maginot37000 TOURS06 32 05 98
96mathias.cunault at inrap.fr <mathias.cunault at inrap.fr>*
www.inrap.fr
abonnez-vous à la lettre d'information de l'Inrap :
http://www.inrap.fr/newsletter.php

Darth Mathias : "Topology is a pathway to many abilities some consider to
be unnatural"
Padwan : "Is it possible to learn this power ?"
Darth Mathias : "Not from an archaeologist !"
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