[mapserver-users] MapServer consuming 100% CPU

[Bart van den Eijnden (OSGIS)]

It is because Mapserver cannot use any attribute indexes on the DBF.

Put your shapefile in a spatial database like PostGIS I would suggest and
create attribute indexes.

Best regards,
Bart

--
Bart van den Eijnden
OSGIS, Open Source GIS
http://www.osgis.nl


--------- Oorspronkelijk bericht --------
Van: Paul Spencer <pspencer at dmsolutions.ca>
Naar: Desarrollo Desarrollo <devmapserver at gmail.com>
Cc: mapserver-users at lists.osgeo.org
Onderwerp: Re: [mapserver-users] MapServer consuming 100% CPU
Datum: 21/02/08 11:09

> See:
> 
> http://mapserver.gis.umn.edu/docs/howto/mapfiletuning
> http://mapserver.gis.umn.edu/docs/howto/optimizevector
> http://mapserver.gis.umn.edu/docs/howto/tileindex
> 
> Cheers
> 
> Paul
> 
> On 21-Feb-08, at 2:56 AM, Desarrollo Desarrollo wrote:
> 
> &gt; Hi,
> &gt;
> &gt;    I am developing an application with  MapServer v2.2.7 with  
> &gt; Apache  on Windows XP, but I have a serious problem, below I  
> &gt; describe it:
> &gt;
> &gt; Using Navteq demo maps from Paris, the Streets.shp have around  
> &gt; 500000 line strings features, when mapserver renders the layer  
> &gt; without using DBF data (only  draw lines) everything is OK and fast, 

> &gt; but when mapserver needs to access to the DBF to render labels or  
> &gt; use expressions to filter data, mapserver starts to consuming 100%  
> &gt; CPU and nothing is rendered after to spends a long time.
> &gt;
> &gt; Using Teleatlas demo maps for a medium city of Spain, the Street.shp 

> &gt; with around 11000 line strings features doesn't show any trouble and 

> &gt; mapserver  renders the images OK and fast even accessing to DBF to  
> &gt; render labels
> &gt;
> &gt; Could somebody help me with this problem? Why does it happen? How do 

> &gt; I solve it?
> &gt;
> &gt;
> &gt; Thank you very much.
> &gt; _______________________________________________
> &gt; mapserver-users mailing list
> &gt; mapserver-users at lists.osgeo.org
> &gt; http://lists.osgeo.org/mailman/listinfo/mapserver-users
> 
> 
> __________________________________________
> 
>     Paul Spencer
>     Chief Technology Officer
>     DM Solutions Group Inc
>     http://www.dmsolutions.ca/
> 
> _______________________________________________
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> 
>