[Qgis-user] WebClient: Timeout wating for Output

[Marco Hugentobler]

Hi Bernhard

There is a fcgi timeout (usually around 40 seconds per default) that you 
can increase in the configuration. The variable in fcgid.conf is called 
FcgidIOTimeout.
Note that there are other useful settings for performance. As QGIS 
server maintains a set of caches (also for the capabilities response), 
it is possible to tell the fcgi module to keep a number of server 
processes after termination (FcgidMinProcessesPerClass). Like that, you 
can make sure there is always enough waiting server processes (with 
filled caches) available.

I added those informations to the QGIS server wiki tutorial 
(http://hub.qgis.org/wiki/quantum-gis/QGIS_Server_Tutorial).

Regards,
Marco

On 16.04.2012 14:35, bernhard.stroebl at jena.de wrote:
> Hallo,
>
> my WebClient Project currently contains around 30 Layers. Sometimes 
> (far too often) the WebClient failes to get the GetCapabilities. The 
> error-log says "[warn] ... Timeout waiting for output from cgi-script 
> /path/qgis_mapserv.fcgi"
> This happens more often (but not always) when setting several 
> visibleLayers in the URL. When I request GetCapabilities directly the 
> server responses really quick.
> Any idea how I could improve the performance?
>
> Bernhard
>
>
>
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-- 
Dr. Marco Hugentobler
Sourcepole -  Linux&  Open Source Solutions
Churerstrasse 22, CH-8808 Pfäffikon SZ, Switzerland
marco.hugentobler at sourcepole.ch http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee