[Tilesathome] Questions on tile updating process

Dirk-Lüder Kreie osm-list at deelkar.net
Mon Apr 20 11:27:52 BST 2009


Andre Hinrichs schrieb:

> Here are the checks it does in order:
> 1.) Tile has an unhandled request -> ignore
> 2.) Tile has an active request -> ignore
> 3.) Tile is empty and was recently finished -> ignore
> 4.) Tile is empty and sea -> ignore

OK so far

> 5.) Tile is empty and land -> rerender

Why? If there was an edit it would have hit the autorequester...

> 6.) Tile is empty and mixed -> rerender

likewise

> 7.) Tile is empty and unknown -> ignore with warning
> 8.) Tile is no older than a given period -> ignore

OK

> 9.) Tile is older than a given period -> rerender

6-12 months, see below.

> 10.) Tile is not empty and has no date -> ignore with warning

OK

If you go through every one of the 16777216 tiles at a rate of one per 2
seconds (as not to interfere too much with the normal operation of the
server) you will take more than a year, more than 6 months if you do it
at a more aggressive rate of one request per second.

-- 

Dirk-Lüder "Deelkar" Kreie
Bremen - 53.0952°N 8.8652°E

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