[ka-Map-users] Clear cache, missing tiles

[Paul Spencer]

Hi Chris

if you have removed the files from the server cache and the browser 
cache, then ka-Map will attempt to create new tiles in the server cache.

Here are some things that can go wrong:

1) apache doesn't have permission to create the cache directory and you 
need to manually create it and provide write permissions to apache

2) there is an error in your map file and/or data and causes mapserver 
to produce a fatal error.

To debug 2), load ka-Map in firefox, wait for the images to fail, then 
open the page info dialog and click the Media tab.  Click on any of the 
tile.php links and copy/paste it into your address bar.  If it is a 
MapServer error, then you will likely see error messages at this point 
that indicate what the problem is.

Cheers

Paul

C.C. Miller wrote:
> I've had a ka-Map install running fairly well using tutorial data. Then 
> I added my own data. So I modified my mapfile yesterday to add the new 
> layer (a simple 4-waypoint point layer). Then when I returned to ka-Map 
> the changes didn't register on any of the tiles. 'Right,' I said to 
> myself, 'I need to clear out the cached images so that ka-Map will 
> generate new ones with the new layer information.' So I deleted those 
> images yesterday, and since then – after many refreshes, many different 
> browsers, many apache restarts, some config.php edits and resets – the 
> tiles I deleted yesterday refuse to be remade (see attached) and all I 
> get is the unfound image icon (no matter the zoom level). 
> So how does one force ka-Map to generate new tiles if old ones cannot be 
> found? There's an "Expire" section in tile.php but it didn't seem to do 
> anything when I changed the default value there.
> 
> I've attached a screencap of the missing tiles and my mapfile, but I'm 
> an apparently hopeless newbie so if there's anything else I need to 
> provide, please advise.
> 
> Thanks for any advice. /Any/.
> 
> Chris
> 
> 
> 
> Mac OS X (Tiger: 10.4.2)
> ka-Map 0.1.1
> 
> 
> output of mapserv -v:
> MapServer version 4.6.0 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP 
> OUTPUT=PDF OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE 
> SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER 
> SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=GEOS INPUT=EPPL7 
> INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
> 
> output of phpinfo
> *MapServer Version*
> MapServer version 4.6.0 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP 
> OUTPUT=PDF OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE 
> SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER 
> SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=GEOS INPUT=EPPL7 
> INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
> *PHP MapScript Version*
> ($Revision: 1.235 $ $Date: 2005/06/14 16:03:35 $)
> 
> 
> ------------------------------------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
> 
> 
> Chris Miller
> cmiller at tamiu.edu <mailto:cmiller at tamiu.edu>
> 
> Government Documents/Reference Librarian
> Killam Library
> Texas A&M International University
> 5201 University Blvd
> Laredo Tx 78041
> U.S.A.
> 956-326-2119
> 
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> ka-Map-users mailing list
> ka-Map-users at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/ka-map-users

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|Paul Spencer                           pspencer at dmsolutions.ca   |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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