[MapProxy] Caches: performance and conversion?

Immanuel Hayden immanuel.hayden at gmail.com
Mon Mar 22 14:57:52 PDT 2021

Oooh that looks like just what I'm looking for. Thanks a lot for pointing
that out. Still concerned about performance though, but let's just see :D

On Mon, 22 Mar 2021 at 21:37, Travis Kirstine <traviskirstine at gmail.com>

> Immanuel,
> I haven't done this with MapProxy but have done something similar with
> MapCache.  I believe the command you are looking for can be found here:
> https://mapproxy.org/docs/1.13.0/mapproxy_util.html#export
> On Wed, 17 Mar 2021 at 11:18, Immanuel Hayden <immanuel.hayden at gmail.com>
> wrote:
>> Hi!
>> Short summary of my situation: I have about 1 TB of tiles between 100+
>> projects (mostly file-cache based ... the horrors) and would like to
>> migrate away to a different cache format. So far I've found geopackage to
>> work rather nicely and also seemingly uses considerably less disk space
>> (about half in my trials). However this leads to two questions:
>> 1. Did anyone ever do a performance comparison between the different
>> local caches? I am concerned with running into performance problems halfway
>> through converting the data. This also includes resource consumption (i.e.
>> does for example loading a geopackage cache stress memory more than a file
>> cache?)
>> 2. Is there some way to convert between cache types? Re-rendering takes a
>> _long_ time due to the complexity of our maps, so while this was a good
>> option for my test projects, it isn't for the bulk of the tile cache. If
>> there is an option, how would I actually set that up? Maybe adding the
>> existing cache as a WMS soure or something?
>> Thanks for your inputs :)
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