[Cartoweb-users] Proxy problem with WMS layers

[Bruno Friedmann]

CHIRI Christophe wrote:
> Hi all, 
> 
> I have a problem to fetch WMS informations through a proxy.
> 
>  
> 
> Here is my error : 
> 
>  
> 
> message:   MapServer error: Error in msDrawWMSLayerLow(): WMS GetMap request failed for layer 'suisse' (Status -28: TIMEOUT of 30 seconds exceeded.).
> 
> 
> 
> Error in msHTTPExecuteRequests(): HTTP: TIMEOUT of 30 seconds exceeded for http://wms.jpl.nasa.gov/browse.cgi?LAYERS=global%5Fmosaic&REQUEST=GetMap&SERVICE=WMS&FORMAT=image%2Fjpeg&HEIGHT=400&VERSION=1.1.1&SRS=EPSG:4326&WIDTH=600&BBOX=6%2E61467346860748%2C46%2E8076274496051%2C6%2E74856133679548%2C46%2E8693681990061&TRANSPARENT=TRUE&EXCEPTIONS=application/vnd.ogc.se_inimage
> 
>  
> 
> I configured my apache by adding : SetEnv http_proxy http://myproxy:port into my http.conf file but it doesn't solve my problem.
> 
>  
> 
> Do you have another idea ?
> 
>  
> 
> --------------------------------------------------------------------------
> 
> Christophe Chiri
> 
> Assistant HEV - Sysin
> 
> Av des Sports 20
> 
> 1400 Yverdon-les-Bains
> 
> +41 24 557 75 73
> 
> christophe.chiri at heig-vd.ch <mailto:christophe.chiri at heig-vd.ch> 
> 
>  
Perharps looking at the home page of nasa will give you the trick

ATTENTION:

Due to server overloading, client applications are strongly advised to use the existing tile datasets wherever possible, as
described in the Tiled WMS or Google Earth KML support

Frequent and repetitive requests for non-cached, small WMS tiles require an excessive amount of server resources and will be
blocked in order to preserve server functionality. The OnEarth server is an experimental technology demonstrator and does not
have enough resources to support these requests.
An alternative solution already exists in the form of tiled WMS
While sets of tiles with different sizes and alignment can be added when needed, for large datasets the duplication of storage,
processing and data management resources is prohibitive.

But I could be completly wrong ... :-)


-- 

     Bruno Friedmann  bruno at ioda-net.ch

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