[Tilesathome] Thoughts about smoothing the load on dev

[Dirk-Lüder Kreie]

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Jon Schlueter schrieb:
> tilesGen.pl Server bottlenecking Issues
> 
> in tilesGen loop mode it currently just spins as fast as possible, if
> there are requests in the queue to be downloaded it pulls it and
> starts working on it... this is even if it just had multiple failures
> on trying to upload files which failed.... This just continues to add
> to the load on the server since requesting another tile to render and
> pulling the mapping data from the database as well sometimes also
> results in
> failed downloads of map data which shows up like this on my client
> 
> [#21   0% jobinit] Doing tileset 2160,1287 (area around 55.403992,9.887695)
> [#21   0% Preproc] Downloading: Map data to data-19232.osm... No data
> at this location
> Trying smaller slices...
> [#21   0% Preproc] Downloading: Map data to data-19232-7.osm... No
> data here either
> 
> which ends up with a false blank tile being generated and uploaded....

This should not happen. if there is no data it should return not
rendering anything. This works correctly in xy (wrapper) mode. (i.e. no
tile is generated at all)

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