[MapProxy] Limit cache storage up to fixed resolution
Oliver Tonnhofer
olt at omniscale.de
Mon Jun 19 23:26:35 PDT 2017
Hi,
you can create a cache with a limited grid (last level 0.42) and another cache with your full grid. The second cache can use the first cache as a source and also use disable_storage.
BTW: It is use_direct_from_level: 5 or use_direct_from_res: 0.42, but yes, it only works for WMS requests.
Regards,
Oliver
--
Oliver Tonnhofer | Omniscale GmbH & Co KG | https://omniscale.com
OpenStreetMap WMS and tile services | https://maps.omniscale.com
> On 12.06.2017, at 17:06, Just van den Broecke <just at justobjects.nl> wrote:
>
> Hello,
>
> I am trying to build an MP config that
>
> - limits a cache based on a WMS source to a minimum resolution, say 0.42
> - the grid has more resolutions, e.g. .. 0.42, 0.21, 0.105, 0.0525
> - below res 0.42 tiles should be created via direct WMS source requests without storing in that cache
>
> I tried the cache config setting "use_direct_from_level: 0.42", but I see, as per the docs, that it is only effective for WMS service requests, not when requesting tiles (TMS, WMTS etc).
>
> I can see the (performance) implications with meta_size/_buffer, but in my case the source is raster and resp [1,1]/0. There is a config option "disable_storage", but this applies to the whole cache.
>
> Or is there a smart way to e.g. define two caches for a Layer, one up to/including level 0.42 with storage and the 2nd for lower res's with "disable_storage"?
>
> kind regards,
>
> --Just
>
> Just van den Broecke
>
>
>
>
>
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