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<p class="MsoNormal"><span style="color:#1F4E79">Dear list,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F4E79"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">this week we upgraded to MapProxy 1.8.1 and it seems there is a bug when calling a WMTS with KVP. An internal error appears as response and the error log shows following:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">Traceback (most recent call last):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> File "/opt/dev/mapproxy/local/lib/python2.7/site-packages/mapproxy/wsgiapp.py", line 189, in __call__<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> resp = self.handlers[handler_name].handle(req)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> File "/opt/dev/mapproxy/local/lib/python2.7/site-packages/mapproxy/service/ows.py", line 38, in handle<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> return self.services[service].handle(req)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> File "/opt/dev/mapproxy/local/lib/python2.7/site-packages/mapproxy/service/base.py", line 30, in handle<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> return handler(parsed_req)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> File "/opt/dev/mapproxy/local/lib/python2.7/site-packages/mapproxy/service/wmts.py", line 92, in tile<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> tile = tile_layer.render(request, coverage=limited_to, decorate_img=decorate_img)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> File "/opt/dev/mapproxy/local/lib/python2.7/site-packages/mapproxy/service/tile.py", line 308, in render<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> dimensions=dimensions, with_metadata=True)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> File "/opt/dev/mapproxy/local/lib/python2.7/site-packages/mapproxy/cache/tile.py", line 101, in load_tile_coord<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> self.cache.load_tile(tile, with_metadata)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> File "/opt/dev/mapproxy/local/lib/python2.7/site-packages/mapproxy/cache/mbtiles.py", line 314, in load_tile<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> return self._get_level(tile.coord[2]).load_tile(tile, with_metadata=with_metadata)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> File "/opt/dev/mapproxy/local/lib/python2.7/site-packages/mapproxy/cache/mbtiles.py", line 168, in load_tile<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"> zoom_level = ?''', tile.coord)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">OperationalError: no such table: tiles<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">I’m pretty sure it worked with MapProxy 1.8.0. The same parameters with the RESTfull WMTS are working with the 1.8.1 version. Here are some example parameters:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">KVP: mapproxy/webatlasde/service?SERVICE=WMTS&VERSION=1.0.0&REQUEST=GetTile&layer=webatlasde&style=default&tilematrixset=DE_EPSG_25832_ADV&tilematrix=00&tilerow=0&tilecol=0&format=png<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">REST: mapproxy/webatlasde/wmts/tile/1.0.0/webatlasde/default/DE_EPSG_25832_ADV/00/0/0.png<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">We’re using a SQLite-DB as Cache. Maybe it’s connected to that because when using an intermediate cache with disable_storage: true (like in the reprojecting tiles/cache example) it’s working and
the response contains the requested tile. Is this a (known) bug or did I miss something?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">So far as a workaround we set up a mod_rewrite rule to forward the KVP requests to REST.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">Kind regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F4E79">Dirk</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:#595959;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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