[OSM-dev] Proposed database improvement

[Nick Hill]

Andy Robinson wrote:
> Nice work Nick :-)

Thanks.

> 
> I noted that the renderer still had trouble drawing the map data on the
> tiles for the centre of Sutton Coldfield. But after the rest of the map had
> drawn I went back and reloaded the couple of affected tiles and they
> refreshed properly so it certainly appears that performance (in terms of
> time of delivery and the actual data provided) is more reliable but still a
> bit flaky. Which presumably means that these are not load issues.

I think you are seeing a non-graceful failure mode in the case of 
overload for the tile server. I would be most concerned to find the data 
actually being delivered to tile were corrupt. I haven't seen any 
compelling evidence of data being served erroneous WRT the OSM data set.