Hi Marco thanks. It was running as cgi. But now I'm running into problems with using fastcgi (ubuntu 10.10). A just get a 500 from apache. The messages from error.log are:
/usr/lib/cgi-bin/av_wms_color/qgis_mapserv.fcgi: error while loading shared libraries: libqgis_core.so.1.7.0: cannot open shared object file: No such file or directory [Mon Mar 21 12:42:43 2011] [warn] [client 127.0.0.1] (104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server [Mon Mar 21 12:42:43 2011] [error] [client 127.0.0.1] Premature end of script headers: qgis_mapserv.fcgi [Mon Mar 21 12:42:43 2011] [error] [client 127.0.0.1] File does not exist: /var/www/favicon.ico regards Stefan > -----Ursprüngliche Nachricht----- > Von: Marco Hugentobler [mailto:[email protected]] > Gesendet am: Montag, 21. März 2011 09:31 > An: [email protected] > Betreff: Re: AW: Re: [Qgis-user] QGIS mapserver performance > > Hi Stefan > > It could be a problem either with the FastCGI setup or with > the layer cache in > the server. > > If you look at the operating system process list after the > QGIS server request > has finished, do you still see an active entry? If not, it > could be that it > runs as a normal cgi instead of fastcgi. > > Regards, > Marco > > > Am Montag, 21. März 2011, um 08.38:49 schrieb Ziegler Stefan: > > Hi Andi > > > > > What exactly do you mean by "rendering straight from > postgis"? What > > > software is rendering straight from Postgis? UMN > Mapserver, or what > > > other renderer? Or your own renderer? > > > > No, "straight from postgis" means adding the layer in QGIS > from postgis. > > I save this qgis project and make it available as WMS. > Since there is > > only QGIS (as renderer) involved I thought there would not be a big > > performance difference. Ok, there is apache who is handling the cgi > > request but that won't take 4 seconds. > > > > > There are some performance bottlenecks regarding clipping of > > > larger/more > > > complex polygons. Marco can tell you more. > > > > I don't think it's a clipping issue since it's fast when > adding the same > > layer 'straight from postgis' :) So there must be some > additional work > > when making a detour. > > > > > > regards > > Stefan > > > > > Andreas > > > > > > On 3/20/11 2:44 PM, Ziegler Stefan wrote: > > > > Hi > > > > > > > > I have some questions concerning the performance of qgis > > > > > > mapserver: Using layers with a small amount of polygons I do > > > not see a big difference between rendering the same layer > > > straight from postgis and from local qgis mapserver > > > installation. For a layer with some 400'000 polygons it takes > > > approx. 4 seconds from qgis mapserver (even for large scales > > > with only some polygons to render). But it only takes some > > > fractions of a second when the layer is rendered straight > > > from postgis (and growing with smaller scales -> more polyons). > > > > > > > Everything is running on a dual core laptop. So there > > > > > > should be no big download bottleneck. No special styles are > > > applied to the layers (just a simple fill and an outline). > > > Are there some requests in addition to "GetMap"? Or what's > > > responsible for this big difference? > > > > > > > regards > > > > Stefan > > > > > > > > Mit freundlichem Gruss > > > > Stefan Ziegler > > > > Leiter amtliche Vermessung > > > > > > > > Amt für Geoinformation > > > > Rötistrasse 4 > > > > 4501 Solothurn > > > > 032 627 75 96 > > > > _______________________________________________ > > > > Qgis-user mailing list > > > > [email protected] > > > > http://lists.osgeo.org/mailman/listinfo/qgis-user > > > > > > _______________________________________________ > > > Qgis-user mailing list > > > [email protected] > > > http://lists.osgeo.org/mailman/listinfo/qgis-user > > > -- > Dr. Marco Hugentobler > Sourcepole - Linux & Open Source Solutions > Churerstrasse 22, CH-8808 Pfäffikon SZ, Switzerland > [email protected] http://www.sourcepole.ch > Technical Advisor QGIS Project Steering Committee > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user >
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