Seem to be a Mapserver error while trying to read the ecw image (<span class="Apple-style-span" style="border-collapse: collapse; ">MOS_07_22D12-SE_F07_21CM.ECW</span>). Maybe this error did not occur before, in the previous zoom level, because it was just not suppose to be displayed (MINSCALE/MAXSCALE). Try to execute the WMS call (URL) outside tilecache and if it failed, you will have your answer <div>
<br></div><div>MartinO</div><div><br><div class="gmail_quote">2008/11/11 Alexandre Dube <span dir="ltr"><<a href="mailto:adube@mapgears.com">adube@mapgears.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Well, I'm back with more problems.<br>
<br>
The script stopped running after more than 12 hours. I'll try to test<br>
with different type of data ( shapefiles, using gif, metaTile,<br>
MapServerLayer type ) locally to see if theses errors ( everyones I<br>
faced so far) occur.<br>
<br>
Here's was the content of the .cfg file :<br>
<br>
[raster]<br>
#type=MapServerLayer<br>
type=WMS<br>
layers=mos,img<br>
#mapfile=/home/mapgears/proj/toto_test/map/toto.map<br>
url=<a href="http://127.0.0.1:8080/cgi-bin/mapserv?map=/home/mapgears/proj/toto_test/map/toto.mapextension=jpgsrs=EPSG:32187resolutions=35.27775872778806,17.63887936389403,8.819439681947015,3.527775872778806,1.763887936389403,0.8819439681947016,0.35277758727788067,0.17638879363894033,0.08819439681947017,0.035277758727788065bbox=189653.232384,5373969.71,231271.235,5402372.275#metaTile=true" target="_blank">http://127.0.0.1:8080/cgi-bin/mapserv?map=/home/mapgears/proj/toto_test/map/toto.map<br>
extension=jpg<br>
srs=EPSG:32187<br>
resolutions=35.27775872778806,17.63887936389403,8.819439681947015,3.527775872778806,1.763887936389403,0.8819439681947016,0.35277758727788067,0.17638879363894033,0.08819439681947017,0.035277758727788065<br>
bbox=189653.232384,5373969.71,231271.235,5402372.275<br>
#metaTile=true</a><br>
<br>
Here's the error :<br>
<div class="Ih2E3d"><br>
Traceback (most recent call last):<br>
File "./tilecache_seed.py", line 9, in <module><br>
TileCache.Client.main()<br>
File "/home/mapgears/tilecache/TileCache/Client.py", line 108, in main<br>
seed(svc, base, layer, map(int, sys.argv[3:5]), map(float,<br>
sys.argv[5].split(",")))<br>
File "/home/mapgears/tilecache/TileCache/Client.py", line 92, in seed<br>
svc.renderTile(tile)<br>
File "/home/mapgears/tilecache/TileCache/Service.py", line 138, in<br>
renderTile<br>
data = layer.render(tile)<br>
File "/home/mapgears/tilecache/TileCache/Layer.py", line 437, in render<br>
return self.renderTile(tile)<br>
</div> File "/home/mapgears/tilecache/TileCache/Layers/WMS.py", line 29, in<br>
renderTile<br>
tile.data, response = wms.fetch()<br>
File "/home/mapgears/tilecache/TileCache/Client.py", line 64, in fetch<br>
raise Exception("Did not get image data back. \nURL:<br>
%s\nContent-Type Header: %s\nResponse: \n%s" % (self.url(), ctype, data))<br>
Exception: Did not get image data back.<br>
URL:<br>
http:/<a href="http://127.0.0.1:8080/cgi-bin/mapserv?map=/home/mapgears/proj/toto_test/map/toto.map&layers=mos%2Cimg&styles=&service=WMS&width=256&format=image%2Fjpeg&request=GetMap&height=256&srs=EPSG%3A32187&version=1.1.1&bbox=221442.726329%2C5378033.70781%2C221533.037391%2C5378124.01887Content-Type" target="_blank">127.0.0.1:8080/cgi-bin/mapserv?map=/home/mapgears/proj/toto_test/map/toto.map&layers=mos%2Cimg&styles=&service=WMS&width=256&format=image%2Fjpeg&request=GetMap&height=256&srs=EPSG%3A32187&version=1.1.1&bbox=221442.726329%2C5378033.70781%2C221533.037391%2C5378124.01887<br>
Content-Type</a> Header: application/vnd.ogc.se_xml<br>
Response:<br>
<?xml version='1.0' encoding="ISO-8859-1" standalone="no" ?><br>
<!DOCTYPE ServiceExceptionReport SYSTEM<br>
"http:/<a href="http://schemas.opengis.net/wms/1.1.1/exception_1_1_1.dtd" target="_blank">schemas.opengis.net/wms/1.1.1/exception_1_1_1.dtd</a>"><br>
<ServiceExceptionReport version="1.1.1"><br>
<ServiceException><br>
msDrawMap(): Image handling error. Failed to draw layer named &#39;mos&#39;.<br>
msDrawRaster(): Image handling error. Unrecognized or unsupported image<br>
format<br>
drawEPP(): Image handling error.<br>
/home/mapgears/proj/toto_test/map/../data/MOS_07_22D12-SE_F07_21CM.ECW<br>
is not an EPPL file.<br>
</ServiceException><br>
</ServiceExceptionReport><br>
<div><div></div><div class="Wj3C7c"><br>
Christopher Schmidt wrote:<br>
> On Mon, Nov 10, 2008 at 08:19:14AM -0500, Alexandre Dube wrote:<br>
><br>
>> Hi,<br>
>><br>
>> I still have problems pre-generating tiles with the tilecache_seed.py<br>
>> command. After a couple of failed tries, I finally gave up on metaTile,<br>
>> but it seems like the problem may be elsewhere because again I get<br>
>> errors after a couple of script running :<br>
>><br>
><br>
> I recommend not using a MapServer layer, and using a WMS layer instead,<br>
> talking to a local mapserver install.<br>
><br>
> The former will sufer from memory leaks because the memory usage of<br>
> mapserver is in process -- with a seperate mapserv, memory leaks go away<br>
> when the process dies.<br>
><br>
><br>
>> Traceback (most recent call last):<br>
>> File "./tilecache_seed.py", line 9, in <module><br>
>> TileCache.Client.main()<br>
>> File "/home/mapgears/tilecache/TileCache/Client.py", line 108, in main<br>
>> seed(svc, base, layer, map(int, sys.argv[3:5]), map(float,<br>
>> sys.argv[5].split(",")))<br>
>> File "/home/mapgears/tilecache/TileCache/Client.py", line 92, in seed<br>
>> svc.renderTile(tile)<br>
>> File "/home/mapgears/tilecache/TileCache/Service.py", line 138, in<br>
>> renderTile<br>
>> data = layer.render(tile)<br>
>> File "/home/mapgears/tilecache/TileCache/Layer.py", line 437, in render<br>
>> return self.renderTile(tile)<br>
>> File "/home/mapgears/tilecache/TileCache/Layers/MapServer.py", line<br>
>> 51, in renderTile<br>
>> mapImage = wms.draw()<br>
>> File "/home/mapgears/fgs-5.2.0/www/lib/python2.5/mapscript.py", line<br>
>> 1363, in draw<br>
>> def draw(*args): return _mapscript.mapObj_draw(*args)<br>
>> _mapscript.MapServerError: msDrawMap(): Image handling error. Failed to<br>
>> draw layer named 'mos'.<br>
>> msDrawRasterLayerGDAL(): Memory allocation error. Allocating work image<br>
>> of size 256x256 failed.<br>
>><br>
>> I'm running out of ideas. Can anybody help me, please ?<br>
>><br>
>> --<br>
>> Alexandre Dubé<br>
>> Mapgears<br>
>> <a href="http://www.mapgears.com" target="_blank">www.mapgears.com</a><br>
>><br>
>> _______________________________________________<br>
>> Tilecache mailing list<br>
>> <a href="mailto:Tilecache@openlayers.org">Tilecache@openlayers.org</a><br>
>> http:/<a href="http://openlayers.org/mailman/listinfo/tilecache" target="_blank">openlayers.org/mailman/listinfo/tilecache</a><br>
>><br>
><br>
><br>
<br>
<br>
--<br>
Alexandre Dubé<br>
Mapgears<br>
<a href="http://www.mapgears.com" target="_blank">www.mapgears.com</a><br>
<br>
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</div></div></blockquote></div><br></div>