Upgrading Mapproxy and PIL to 1.4.0 resp 1.1.7 did not help either :(<br><br>Some more information: After upgrading, the error message is a bit more precise:<br>unable to load tile <mapproxy.image.ImageSource object at 0x7fac30036750>, removing it (reason was: broken data stream when reading image file)<br>
<br>I still have no idea how to fix this, as I can't reproduce the error when I try to access the same file with PIL from command-line.<br><br>Here is my test yaml:<br>services:<br> demo:<br> kml:<br> tms:<br> # needs no arguments<br>
wms:<br> srs: ['EPSG:2169']<br> image_formats: ['image/jpeg','image/png']<br> md:<br> # metadata used in capabilities documents<br> title: MapProxy WMS Proxy<br> abstract: This is the fantastic MapProxy.<br>
online_resource: <a href="http://mapproxy.org/">http://mapproxy.org/</a><br> contact:<br> person: Your Name Here<br> position: Technical Director<br> organization: <br> address: Fakestreet 123<br>
city: Somewhere<br> postcode: 12345<br> country: Germany<br> phone: +49(0)000-000000-0<br> fax: +49(0)000-000000-0<br> email: <a href="mailto:info@omniscale.de">info@omniscale.de</a><br>
access_constraints:<br> This service is intended for private and evaluation use only.<br> The data is licensed as Creative Commons Attribution-Share Alike 2.0<br> (<a href="http://creativecommons.org/licenses/by-sa/2.0/">http://creativecommons.org/licenses/by-sa/2.0/</a>)<br>
fees: 'None'<br><br>layers:<br> - name: OSM_MQ<br> title: OSM_MQ<br> sources: [osm_cache_mq]<br> <br>grids:<br> global_mercator_osm:<br> base: GLOBAL_MERCATOR<br> num_levels: 18 <br> origin: nw<br>
srs: EPSG:900913 <br> <br>caches:<br> osm_cache_mq:<br> grids: [global_mercator_osm]<br> sources: [osm_tms_mq] <br> disable_storage: true<br> format: image/png <br> cache:<br> type: mbtiles<br>
filename: /tmp/osm_mq.mbtiles<br> <br><br>sources:<br> osm_tms_mq:<br> type: tile<br> url: <a href="http://otile1.mqcdn.com/tiles/1.0.0/osm/%(tms_path)s.png">http://otile1.mqcdn.com/tiles/1.0.0/osm/%(tms_path)s.png</a><br>
grid: global_mercator_osm <br> on_error:<br> 202:<br> response: transparent<br> cache: True <br>globals:<br> # # coordinate transformation options<br> srs:<br> # # WMS 1.3.0 requires all coordiates in the correct axis order,<br>
# # i.e. lon/lat or lat/lon. Use the following settings to<br> # # explicitly set a CRS to either North/East or East/North<br> # # ordering.<br> # axis_order_ne: ['EPSG:9999', 'EPSG:9998']<br>
# axis_order_en: ['EPSG:0000', 'EPSG:0001']<br> # # you can set the proj4 data dir here, if you need custom<br> # # epsg definitions. the path must contain a file named 'epsg'<br> # # the format of the file is:<br>
# # <4326> +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs <><br> proj_data_dir: '/usr/share/proj/'<br><br> # image/transformation options<br> image:<br> #resampling_method: nearest<br>
# resampling_method: bilinear<br> resampling_method: bicubic<br> paletted: false<br> # jpeg_quality: 90<br> # # stretch cached images by this factor before<br> # # using the next level<br>
# stretch_factor: 1.15<br> # # shrink cached images up to this factor before<br> # # returning an empty image (for the first level)<br> # max_shrink_factor: 4.0<br><br><br><br><br><br><br><br><br><br>
<br><br><br><br><br><br><br><br><br><br>and the test request:<br><a href="http://mapproxy:8080/service?VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG:2169&BBOX=-5492.29987506387,969.790037458326,168537.735685007,192859.236316351&WIDTH=877&HEIGHT=967&LAYERS=OSM_MQ&STYLES=&EXCEPTIONS=application/vnd.ogc.se_xml&FORMAT=image/png&BGCOLOR=0xFEFFFF&TRANSPARENT=TRUE">http://mapproxy:8080/service?VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG:2169&BBOX=-5492.29987506387,969.790037458326,168537.735685007,192859.236316351&WIDTH=877&HEIGHT=967&LAYERS=OSM_MQ&STYLES=&EXCEPTIONS=application/vnd.ogc.se_xml&FORMAT=image/png&BGCOLOR=0xFEFFFF&TRANSPARENT=TRUE</a><br>
<br><br>Thanks in advance<br>Jeff<br><br><div class="gmail_quote">On Fri, Jun 29, 2012 at 11:42 AM, Jeff Konnen <span dir="ltr"><<a href="mailto:jaykayone@gmail.com" target="_blank">jaykayone@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">This is weird, if I try to open the file in python, it seems to be ok:<br><br>import urllib2<br>import Image<br>from cStringIO import StringIO<br>
im = Image.open(StringIO(urllib2.urlopen("<a href="http://otile2.mqcdn.com/tiles/1.0.0/osm/9/264/174.png" target="_blank">http://otile2.mqcdn.com/tiles/1.0.0/osm/9/264/174.png</a>").read()))<br>
print im.format, im.size, im.mode<br><br>but when using mapproxy I still get this message: <br><br>[2012-06-29 11:24:26,823] mapproxy.image.tile - WARNING - unable to load tile <mapproxy.image.ImageSource object at 0x7fc9f0034ad0>, removing it (reason was: decoding error when reading image file)<br>
<br>fyi, this is my source:<br> osm_tms_mq:<br> type: tile<br> url: <a href="http://otile1.mqcdn.com/tiles/1.0.0/osm/%%28tms_path%29s.png" target="_blank">http://otile1.mqcdn.com/tiles/1.0.0/osm/%(tms_path)s.png</a><br>
grid: global_mercator_osm<br>
on_error:<br> 202:<br> response: transparent<br> cache: True<br><br>and my wms definition:<br> wms:<br> srs: ['EPSG:2169','EPSG:310024802']<br> image_formats: ['image/jpeg','image/png']<br>
<br>my test-request: <a href="http://mapproxy:8080/service?VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG:2169&BBOX=-5492.29987506387,969.790037458326,168537.735685007,192859.236316351&WIDTH=877&HEIGHT=967&LAYERS=OSM_MQ&STYLES=&EXCEPTIONS=application/vnd.ogc.se_xml&FORMAT=image/png&BGCOLOR=0xFEFFFF&TRANSPARENT=TRUE" target="_blank">http://mapproxy:8080/service?VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG:2169&BBOX=-5492.29987506387,969.790037458326,168537.735685007,192859.236316351&WIDTH=877&HEIGHT=967&LAYERS=OSM_MQ&STYLES=&EXCEPTIONS=application/vnd.ogc.se_xml&FORMAT=image/png&BGCOLOR=0xFEFFFF&TRANSPARENT=TRUE</a><br>
<br>I've been using this WMS for a while now and it seems to be only that one tile<br>Any idea?<br>Jeff<div><div><br><br><br><div class="gmail_quote">On Wed, Jun 27, 2012 at 11:56 AM, Jeff Konnen <span dir="ltr"><<a href="mailto:jaykayone@gmail.com" target="_blank">jaykayone@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br><br><div class="gmail_quote"><div>On Wed, Jun 27, 2012 at 11:50 AM, Oliver Tonnhofer <span dir="ltr"><<a href="mailto:olt@omniscale.de" target="_blank">olt@omniscale.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><br>
On 27.06.2012, at 11:36, Jeff Konnen wrote:<br>
> I've found this error in my logs: [2012-06-27 11:33:57,623] mapproxy.image.tile - WARNING - unable to load tile <mapproxy.image.ImageSource object at 0x7f52bc03e350>, removing it (reason was: decoding error when reading image file)<br>
><br>
> It's about this tile: <a href="http://otile2.mqcdn.com/tiles/1.0.0/osm/9/264/174.png" target="_blank">http://otile2.mqcdn.com/tiles/1.0.0/osm/9/264/174.png</a><br>
<br>
</div>Are you sure that this is the right file? MapProxy removes the tile when you see this warning and will re-request it from the source.<br>
<div><br>
> Does anyone have an idea about what this could be about?<br>
<br>
</div>MapProxy/PIL could somehow not read the tile.<br>
<br>
BTW: The tile is a JPEG and not a PNG.<br>
<br></blockquote></div><div><br>That's correct, but the neighbouring tiles are all JPEGs called PNG too and PIL can read them, it's weird..<br> </div><div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Regards,<br>
Oliver<br>
<span><font color="#888888"><br>
--<br>
Oliver Tonnhofer | Omniscale GmbH & Co KG | <a href="http://omniscale.de" target="_blank">http://omniscale.de</a><br>
<a href="http://mapproxy.org" target="_blank">http://mapproxy.org</a> | <a href="https://bitbucket.org/olt" target="_blank">https://bitbucket.org/olt</a> | @oltonn<br>
<br>
<br>
<br>
<br>
</font></span></blockquote></div></div><span><font color="#888888"><br><br clear="all"><br>-- <br>Jeff Konnen<br><br>
</font></span></blockquote></div><br><br clear="all"><br></div></div><span><font color="#888888">-- <br>Jeff Konnen<br><br>
</font></span></blockquote></div><br><br clear="all"><br>-- <br>Jeff Konnen<br><br>