[Tilesathome] WG: Questions on tile updating process

[Maarten Deen]

Norbert Hoffmann wrote:
> Maarten Deen wrote:
> 
>>BTW: the caption does look a lot nicer. Compare it with the current tile at 
>><http://tah.openstreetmap.org/Browse/details/tile/6/32/21/>
> 
> It really is nicer. But it's not uploaded? If I look at
> http://server.tah.openstreetmap.org/Browse/?layer=caption&z=6&x=32&y=21 it
> is still the old one.

I'm now looking in the logfiles, and this is a tile where the client absolutely 
bombed. For giggle value: see the attached image which is a graph of the load of 
my machine. Full load under one processor is 100. You see 5 separate occasions 
where the load goes past 2000. That would be the same as running 20 clients 
side-by-side, all competing for resources.
The available memory also went down to less then 100M (on a machine with 4G 
available), at which point Ubuntu (or better: the wonderful oom-killer) has had 
enough and starts a killing spree (I see perl go down, mythfrontend, mysql, 
apache, even deamons get slashed down).

Concerned tiles are 31,22 31,23 32,21 32,23 33,21 33,23.
This is all in Europe, some are the same tiles that started this whole thread.

I'm now downloading the captionlayer of 32,23,6 (southern part of France, NE 
Spain, Toulouse, Nîmes, Barcelone). The boundary=administrative file is now 
already past 150 MB and still counting.
There is something very fishy there. Anyone who cares to investigate the other 
ones is welcome to do so.

Why I was able to render 32,21 before (on my Windows machine) and why it now 
bombes, I don't know. I'll have to investigate that.

Regards,
Maarten


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