On Tue, Nov 04, 2008 at 08:32:23PM +0100, Martin Koppenhoefer wrote:
> 1. As one week ago the complete borders of all italian districts
> (comuni, thanks to ISTAT, national statistical office) have been
> imported, I'm trying to rerender lots of Z12-Tiles and therefore noted
> a difference: sometimes (in the past) the request to rerender a
> already requested tile caused an error ("tile currently rendering"),
> but now they are just accepted like new requests (I could request any
> single tile as often as I want, even if that doesn't make sense). Has
> something been changed, or is there some error causing this behaviour?
if Request.objects.filter(status=1, min_z=formdata['min_z'], x=formdata['x'],
y=formdata['y']).count():
return (None, 'Request currently rendering')
No, its still checking and rejecting. It will give that "Request curently
rendering" message only if its actually out at a client and currently
rendering. You will get no error message, if the request is still sitting in
the rendering queue. However, a request will only be added once.
> 2. How often are the low-zoom-tiles rerendered, and is this done only
> when tiles have changed or on a time-basis?
They are usually stitched on a continuous basis now. However, as there were
extremely many z12 tiles modified (e.g. whole Antarctica, the stitcher is about
1500 z6 tilesets backlogged. So it might take a while until it gets to do new
tilesets. If it starts a new round and the upload is longer than 48h in the
past it won't stitch it. So the correct reply is, "they are rendered
immediately, but due to the current backlog some might be missed out".
spaetz
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