[MapProxy] invalid wms request from mapproxy

[Travis Kirstine]

Nothing in the error mapproxy log (debug).  The error is coming upstream
MapServer WMS

The WMS request coming from MapProxy is defaulting to the bbox of the
source with a width / height of 1 px at higher zoom ().

 /cgi-bin/mapserver_wms?styles=&format=image%2Fpng&height=1&bbox=-11496569.213,5478916.2662,-11494537.6069,5484007.27162&transparent=True&layers=BHP&service=WMS&width=1&request=GetMap&srs=EPSG%3A3857&version=1.1.1

This request is causing MapServer to crash.  I think the crash is due to
the SCALETOKEN parameter in my MapServer mapfile, I'm guessing MS is having
a issue determining the scale
for a 1x1 px image

If I remove the coverage from my MapProxy source everything works fine.

BTW thanks for the min_res info





The request is causing MapServer to crash

On 18 November 2015 at 02:13, Oliver Tonnhofer <olt at omniscale.de> wrote:

> Hi Travis,
>
> can you post the relevant parts of the console output/logs?
> You can also check out the min_res options. This prevents MapProxy from
> making requests in in the first zoom levels.
>
> Regards,
> Oliver
>
> --
> Oliver Tonnhofer  | Omniscale GmbH & Co KG  | http://omniscale.com
> OpenStreetMap WMS and tile services         | http://maps.omniscale.com
>
>
>
>
> > On 16.11.2015, at 20:37, Travis Kirstine <traviskirstine at gmail.com>
> wrote:
> >
> > I noticed a bunch of 500 errors being generated in MapProxy because the
> source  MapServer WMS is not generating images.  It appears some cases
> MapProxy will generate a WMS request with a width=1 and height=3 px.  I
> think this is related to the source coverage (bbox) in some way.  The
> source has a fairly small bbox which could be the problem? If I remove the
> coverage from the source wms it works
> >
> >
> /cgi-bin/mapserver_wms?styles=&format=image%2Fpng&height=1&bbox=-11496569.213,5478916.2662,-11494537.6069,5484007.27162&transparent=True&layers=BHP&service=WMS&width=1&request=GetMap&srs=EPSG%3A3857&version=1.1.1
> >
> > The odd thing is MapProxy is working fine when looking at the layer
> between zoom 19-7 however once I zoom out between 0-6 the request start to
> fail
> >
> > MP Stuff:
> >
> >   BHP_cache:
> >     grids: [spherical_mercator]
> >     sources: [BHP_wms]
> >     meta_buffer: 100
> >     meta_size: [4,4]
> >     format: image/png
> >
> >   BHP_wms:
> >     type: wms
> >     req:
> >       url: http://localhost/cgi-bin/mapserver_wms?
> >       layers: BHP
> >       transparent: true
> >     coverage:
> >       bbox:
> [-11496569.2130269,5478916.26620355,-11494537.6069391,5484007.27161516]
> >       srs: 'EPSG:3857'
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > MapProxy mailing list
> > MapProxy at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/mapproxy
>
>
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