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You may also try not to use the default DATA connection in the mapfile,
but instead reference the shapefile through CONNECTION TYPE OGR;<br>
<br>
Another option would be to convert the data through OGR to mapinfo
files. I am using mapserv - mapinfo tab with 21 roadnetworks for all
public safety districts in the Netherlands containing approx. 150.000
road-segments per district and this works fine. Also make sure that the
zoom-layering for the labels is set to your satisfaction.<br>
<br>
<br>
<br>
<br>
Bart van den Eijnden (OSGIS) schreef:
<blockquote cite="mid:ab82d4f09181c9dfda281924395d1112@145.50.39.11"
type="cite">
<pre wrap="">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
<a class="moz-txt-link-freetext" href="http://www.osgis.nl">http://www.osgis.nl</a>
--------- Oorspronkelijk bericht --------
Van: Paul Spencer <a class="moz-txt-link-rfc2396E" href="mailto:pspencer@dmsolutions.ca"><pspencer@dmsolutions.ca></a>
Naar: Desarrollo Desarrollo <a class="moz-txt-link-rfc2396E" href="mailto:devmapserver@gmail.com"><devmapserver@gmail.com></a>
Cc: <a class="moz-txt-link-abbreviated" href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a>
Onderwerp: Re: [mapserver-users] MapServer consuming 100% CPU
Datum: 21/02/08 11:09
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<blockquote type="cite">
<pre wrap="">See:
<a class="moz-txt-link-freetext" href="http://mapserver.gis.umn.edu/docs/howto/mapfiletuning">http://mapserver.gis.umn.edu/docs/howto/mapfiletuning</a>
<a class="moz-txt-link-freetext" href="http://mapserver.gis.umn.edu/docs/howto/optimizevector">http://mapserver.gis.umn.edu/docs/howto/optimizevector</a>
<a class="moz-txt-link-freetext" href="http://mapserver.gis.umn.edu/docs/howto/tileindex">http://mapserver.gis.umn.edu/docs/howto/tileindex</a>
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,
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<pre wrap="">&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
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<pre wrap="">&gt; with around 11000 line strings features doesn't show any trouble and
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<pre wrap="">&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
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<pre wrap="">&gt; I solve it?
&gt;
&gt;
&gt; Thank you very much.
&gt; _______________________________________________
&gt; mapserver-users mailing list
&gt; <a class="moz-txt-link-abbreviated" href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a>
&gt; <a class="moz-txt-link-freetext" href="http://lists.osgeo.org/mailman/listinfo/mapserver-users">http://lists.osgeo.org/mailman/listinfo/mapserver-users</a>
__________________________________________
Paul Spencer
Chief Technology Officer
DM Solutions Group Inc
<a class="moz-txt-link-freetext" href="http://www.dmsolutions.ca/">http://www.dmsolutions.ca/</a>
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</pre>
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