[MapProxy] Walking TMS Service URLs and LockTimeout -- Trouble Shooting

Greg Corradini gregcorradini at gmail.com
Thu Jul 14 12:43:37 EDT 2011


Hello,
I'm using mapproxy-1.1.2 with a tms service and mapnik source. I've got the
top-level mapproxy logger for everything turned on.

Things seem to be working for the most part except that I'm not getting any
tiles back. That means I'm seeing most requests come through in the logs and
I'm able to traverse the TMS URLs and get valuable XML back up to the point
of the z/x/y.png request. I'm not seeing an errors in the logs.

When I make the initial z/x/y URL request nothing is returned...the service
just hangs and waits for a response.

If I make a second z/x/y URL request (with different z/x/y parameters) I
then receive the error:
*
*

*raise LockTimeout('another process is still running with our lock')*


Here is an example of the URLs that return XML up to the point of the /z/x/y
request. I'm wondering if I'm supposed to walk these all to completion.
You'll notice the last URL request of
<host>/mapproxy/tms/1.0.0/<layer>/<srs>/z returns an "invalid request" XML
response. Is that normal? Or should I be able to walk all the way to the x
and y URLs?:


http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0

<TileMapService version="1.0.0">
<Title/>
<Abstract/>
<TileMaps>
<TileMap title="OSM_TMS_AMRE" srs="OSGEO:41001" profile="global-mercator"
href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG900913"/>
<TileMap title="OSM_TMS_AMRE" srs="EPSG:4326" profile="global-geodetic"
href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326"/>
</TileMaps>
</TileMapService>


http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326


<TileMap version="1.0.0">
<Title>OSM_TMS_AMRE</Title>
<Abstract/>
<SRS>EPSG:4326</SRS>
<BoundingBox minx="-180.0" miny="-90.0" maxx="180.0" maxy="90.0"/>
<Origin x="-180.0" y="-90.0"/>
<TileFormat width="256" height="256" mime-type="image/png" extension="png"/>
<TileSets profile="global-geodetic">
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/0"
units-per-pixel="0.703125" order="0"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/1"
units-per-pixel="0.3515625" order="1"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/2"
units-per-pixel="0.17578125" order="2"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/3"
units-per-pixel="0.087890625" order="3"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/4"
units-per-pixel="0.0439453125" order="4"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/5"
units-per-pixel="0.02197265625" order="5"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/6"
units-per-pixel="0.010986328125" order="6"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/7"
units-per-pixel="0.0054931640625" order="7"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/8"
units-per-pixel="0.00274658203125" order="8"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/9"
units-per-pixel="0.00137329101562" order="9"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/10"
units-per-pixel="0.000686645507812" order="10"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/11"
units-per-pixel="0.000343322753906" order="11"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/12"
units-per-pixel="0.000171661376953" order="12"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/13"
units-per-pixel="8.58306884766e-05" order="13"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/14"
units-per-pixel="4.29153442383e-05" order="14"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/15"
units-per-pixel="2.14576721191e-05" order="15"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/16"
units-per-pixel="1.07288360596e-05" order="16"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/17"
units-per-pixel="5.36441802979e-06" order="17"/>
<TileSet href="http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/18"
units-per-pixel="2.68220901489e-06" order="18"/>
</TileSets>
</TileMap>



http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG4326/5


<TileMapServerError>
<Message>invalid request (/tms/1.0.0/osm/EPSG4326/5)</Message>
</TileMapServerError>


http://nerdoweb2.hnu.org/mapproxy/tms/1.0.0/osm/EPSG900913/5/10/9.png


Thanks for any help
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