[MapProxy] Reg: Suggestion to Seed single layer with multiple instances

Travis Kirstine traviskirstine at gmail.com
Tue Mar 9 18:47:26 PST 2021


I've found the biggest factor when seeding is the speed the source can
generate the images and the cache type.  If you are seeding to a single
sqlite db for instance you will run into table locking issues, so adding
more seeders will not help.  BTW the concurrency option will run multiple
seed workers.

On Thu, 4 Mar 2021 at 03:44, Naresh N <naresh919 at gmail.com> wrote:

> Dear All,
> I have deployed the MapProxy and configured the layer. We want to create
> the offline cache for the layer. Please find the details below.
> Layer Name : India_satellite
> Caching required area:66,6,102,40 (bounding box coordinates)
> Zoom level : 16
> *Problem/Issue:*
> To create the seed for the area 66,6,102,40(bounding box coordinates)
> with one instance it takes *a lot of time to complete the cache for
> higher zoom levels* (like 16,17,etc). To overcome this, we want to divide
> area *66,6,102,40* into *1deg*1deg* and want to seed the layer  1 deg
> grid wise by executing  multiple instances of seeding  simultaneously.
> Please suggest   H*ow to run/execute multiple instances of seeding of one
> single layer *
> Please let me know any other information required further.
> Thanks & Regards,
> Naresh
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