[mapserver-users] MapCache: Disabling WMS requests for fully-seeded caches?

[John Taranu]

Hi Thomas,

Thanks for the suggestion.  Commenting out the source block disables the WMS requests.

However, the error reporting seems to be broken.  Setting <errors>empty_img</errors> crashes Apache with a segmentation fault (mod_mapcache SVN revision 12828).  Setting <errors>report</errors> throws HTTP 404 responses, which is a more reasonable result.

John



-----Original Message-----
From: thomas bonfort [mailto:thomas.bonfort at gmail.com] 
Sent: Tuesday, November 29, 2011 10:33 AM
To: John Taranu
Cc: mapserver-users at lists.osgeo.org
Subject: Re: [mapserver-users] MapCache: Disabling WMS requests for fully-seeded caches?

You can do this by commenting out the <source> block from the tileset once the wanted tiles have been created. You'll probably also want set error reporting to return blank images from that stage onwards.

--
thomas

On Tue, Nov 29, 2011 at 00:09, John Taranu <jtaranu at firstbasesolutions.com> wrote:
> We have a fully seeded cache that was fully seeded to a polygon outline.
> The intent is to serve the tileset through a variety of services (WMS, 
> TMS) using mod-mapcache.
>
>
>
> Tiles that are outside the polygon outline but still within the 
> polygon bounding box should be blank tiles.  However, a request for 
> one of these tiles results in a call to that tileset’s WMS source.  
> This creates considerable overhead by starting up MapServer and 
> writing the resulting tile to the cache.  Is there any way to disable 
> the WMS calls for these blank tiles, and instead short-circuit the 
> request to return a blank?  That is, once a tileset has been fully 
> seeded, is it possible to disable any further calls to the WMS, so 
> that requests for tiles that are not in the cache return a blank?
>
>
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