[OSM-dev] tips to reduce bulk tiles downloads ?

[Frederik Ramm]

Hi,

On 07/27/11 16:08, sly (sylvain letuffe) wrote:
> Well no, because I don't use mod_tile, but that is a good idea, instead of
> blocking completly the ability to download, reducing/limiting the hit rate
> per minute per IP might be a good idea. I'll try to do something about that.
>
>> On my server I use a tile limit per zoom level (automated tile scrapers show
>> an exponential increase with higher zoom levels)
>
> I plan to add a "tile not in the cache penalty" because that's what put all
> the load, deliverying tiles in cache as close to no impact

If you were to use mod_tile, that would already be in there; mod_tile 
has two different delay pools, one for tiles in cache and one for tiles 
that need to be rendered.

If you cannot use mod_tile then you could use a squid proxy in front of 
whatever you're running, and configure delay pools on that. I believe 
this is done on OSM's own servers as well.

Bye
Frederik